Studienjahr model: set different default values for getAktOrNextStudienjahr und getLastOrAktStudienjahr, changed getAktOrNextStudienjahr to really return current or next semester

Studiensemester model get aktornext method: removed query params
Studiensemester model: adapted getAktOrNextSemester method to return current semester, next semester only if there is no current, set default days offset to 0, set default offset of getLastorAktSemester to 0, simplified getByDate method
2026-06-01 12:19:28 +00:00 · 2026-03-16 11:22:43 +01:00 · 2026-02-17 11:59:34 +01:00 · 2026-02-13 18:21:43 +01:00 · 2026-02-13 13:58:30 +01:00 · 2026-02-13 13:45:12 +01:00
376 changed files with 37524 additions and 5613 deletions
@@ -6,30 +6,30 @@ use CI3_Events as Events;
 Events::on('loadRenderers', function ($renderers) {
 	$fhc_core_renderers =& $renderers();
 	$fhc_core_renderers["lehreinheit"] = array(
-		'calendarEvent' => APP_ROOT.'public/js/components/Cis/Renderer/Lehreinheit/calendarEvent.js',
-		'modalTitle' => APP_ROOT.'public/js/components/Cis/Renderer/Lehreinheit/modalTitle.js',
-		'modalContent' => APP_ROOT.'public/js/components/Cis/Renderer/Lehreinheit/modalContent.js',
-		'calendarEventStyles' => APP_ROOT.'public/css/Cis4/CoreCalendarEvents.css'
+		'calendarEvent' => absoluteJsImportUrl('public/js/components/Cis/Renderer/Lehreinheit/calendarEvent.js'),
+		'modalTitle' => absoluteJsImportUrl('public/js/components/Cis/Renderer/Lehreinheit/modalTitle.js'),
+		'modalContent' => absoluteJsImportUrl('public/js/components/Cis/Renderer/Lehreinheit/modalContent.js'),
+		'calendarEventStyles' => APP_ROOT . 'public/css/Cis4/CoreCalendarEvents.css'
 	);
 });

 Events::on('loadRenderers', function ($renderers) {
 	$fhc_core_renderers =& $renderers();
 	$fhc_core_renderers["reservierung"] = array(
-		'calendarEvent' => APP_ROOT.'public/js/components/Cis/Renderer/Reservierungen/calendarEvent.js',
-		'modalTitle' => APP_ROOT.'public/js/components/Cis/Renderer/Reservierungen/modalTitle.js',
-		'modalContent' => APP_ROOT.'public/js/components/Cis/Renderer/Reservierungen/modalContent.js',
-		'calendarEventStyles' => APP_ROOT.'public/css/Cis4/CoreCalendarEvents.css'
+		'calendarEvent' => absoluteJsImportUrl('public/js/components/Cis/Renderer/Reservierungen/calendarEvent.js'),
+		'modalTitle' => absoluteJsImportUrl('public/js/components/Cis/Renderer/Reservierungen/modalTitle.js'),
+		'modalContent' => absoluteJsImportUrl('public/js/components/Cis/Renderer/Reservierungen/modalContent.js'),
+		'calendarEventStyles' => APP_ROOT . 'public/css/Cis4/CoreCalendarEvents.css'
 	);
 });

 Events::on('loadRenderers', function ($renderers) {
 	$fhc_core_renderers =& $renderers();
 	$fhc_core_renderers["ferien"] = array(
-		'calendarEvent' => APP_ROOT.'public/js/components/Cis/Renderer/Feiertage/calendarEvent.js',
-		'modalTitle' => APP_ROOT.'public/js/components/Cis/Renderer/Feiertage/modalTitle.js',
-		'modalContent' => APP_ROOT.'public/js/components/Cis/Renderer/Feiertage/modalContent.js',
-		'calendarEventStyles' => APP_ROOT.'public/css/Cis4/CoreCalendarEvents.css'
+		'calendarEvent' => absoluteJsImportUrl('public/js/components/Cis/Renderer/Feiertage/calendarEvent.js'),
+		'modalTitle' => absoluteJsImportUrl('public/js/components/Cis/Renderer/Feiertage/modalTitle.js'),
+		'modalContent' => absoluteJsImportUrl('public/js/components/Cis/Renderer/Feiertage/modalContent.js'),
+		'calendarEventStyles' => APP_ROOT . 'public/css/Cis4/CoreCalendarEvents.css'
 	);
 });

@@ -0,0 +1,43 @@
+<?php
+
+
+if (!defined('BASEPATH')) exit('No direct script access allowed');
+
+$config['turnitin_link'] = 'https://technikum-wien.turnitin.com/sso/sp/redwood/saml/5IyfmBr2OcSIaWQTKlFCGj/start';
+
+$config['old_abgabe_beurteilung_link'] = 'https://moodle.technikum-wien.at/mod/page/view.php?id=1005052';
+
+$config['PAABGABE_EMAIL_JOB_INTERVAL'] = '1 day';
+// used as APP_ROOT.URL_STUDENTS -> cis4
+$config['URL_STUDENTS'] = 'cis.php/Cis/Abgabetool/Student';
+// used as APP_ROOT.URL_MITARBEITER -> old cis 
+$config['URL_MITARBEITER'] = 'index.ci.php/Cis/Abgabetool/Mitarbeiter';
+// used as APP_ROOT.URL_MITARBEITER -> old cis 
+$config['URL_ASSISTENZ'] = 'index.ci.php/Cis/Abgabetool/Assistenz';
+
+// lehre.tbl_paabgabetyp bezeichnung
+//$config['ALLOWED_ABGABETYPEN_BETREUER'] = ['Zwischenabgabe', 'Quality Gate 1', 'Quality Gate 2'];
+$config['ALLOWED_ABGABETYPEN_BETREUER'] = ['abstract','zwischen', 'qualgate1', 'qualgate2']; // tbl_paabgabetyp pk
+// paabgabetypen for which betreuer is benachrichtigt via sammelmail
+$config['RELEVANT_PAABGABETYPEN_SAMMELMAIL_BETREUER'] = ['qualgate1', 'qualgate2', 'end'];
+// paabgabetypen for which assistenz is benachrichtigt via sammelmail
+$config['RELEVANT_PAABGABETYPEN_SAMMELMAIL_ASSISTENZ'] = ['end'];
+// paabgabetypen for which student is benachrichtigt via sammelmail -> basically all of them but still defined for consistency
+$config['RELEVANT_PAABGABETYPEN_SAMMELMAIL_STUDENT'] = ['qualgate1', 'qualgate2', 'zwischen', 'note', 'abstract', 'end', 'enda'];
+//$config['ALLOWED_NOTEN_ABGABETOOL'] = ['Bestanden', 'Nicht bestanden'];
+$config['ALLOWED_NOTEN_ABGABETOOL'] = [10, 14]; // tbl_note pk
+// benotete projektarbeiten sperren weitere terminanlage & bearbeitung, diese noten sind ausnahmen dieser Regel
+// wie zB "Nicht beurteilt" & "Noch nicht eingetragen"
+$config['NONFINAL_NOTEN_ABGABETOOL'] = [9];
+$config['beurteilung_link_fallback'] = 'addons/fhtw/content/projektbeurteilung/projektbeurteilungDocumentExport.php?projektarbeit_id=?&betreuerart_kurzbz=?&person_id=?';
+
+$config['PROJEKTARBEITSBEURTEILUNG_MAIL_BASELINK_ERSTBEGUTACHTER'] = 'index.ci.php/extensions/FHC-Core-Projektarbeitsbeurteilung/ProjektarbeitsbeurteilungErstbegutachter';
+$config['PROJEKTARBEITSBEURTEILUNG_MAIL_BASELINK_ZWEITBEGUTACHTER'] = 'index.ci.php/extensions/FHC-Core-Projektarbeitsbeurteilung/ProjektarbeitsbeurteilungErstbegutachter';
+
+$config['SIGNATUR_CHECK_PAABGABETYPEN'] = ['end'];
+
+// to be used as "https://moodle.technikum-wien.at/course/view.php?idnumber=dl{$stg_kz}" for stg specific moodle routing
+$config['STG_MOODLE_LINK'] = 'https://moodle.technikum-wien.at/course/view.php?idnumber=dl';
+
+$config['ASSISTENZ_SAMMELMAIL_BUTTON_STUDENT'] = true;
+$config['ASSISTENZ_SAMMELMAIL_BUTTON_BETREUER'] = true;
@@ -4,6 +4,12 @@ if (! defined('BASEPATH')) exit('No direct script access allowed');


 // CMS Content Id for CIS4 Menu Root
-$config['cis_menu_root_content_id'] = 11087;
+$config['cis_menu_root_content_id'] = 11091;
 // send Mails for ProfilUpdate
 $config['cis_send_profil_update_mails'] = true;
+// Vilesci CI BaseUrl
+$config['cis_vilesci_base_url'] = defined('VILESCI_ROOT') ? VILESCI_ROOT : APP_ROOT;
+$config['cis_vilesci_index_page'] = 'index.ci.php';
+// Cis CI BaseUrl
+$config['cis_base_url'] = defined('CIS_ROOT') ? CIS_ROOT : APP_ROOT;
+$config['cis_index_page'] = 'cis.php';
@@ -7,3 +7,6 @@ $config['use_vuejs_dev_version'] = false;
 $config['use_bundled_javascript'] = false;
 // systemerror_mailto use in FHC-Alert Plugin - if empty Link will not be rendered
 $config['systemerror_mailto'] = '';
+// use fhcomplete_build_version as path element after public (requires apache mod_rewrite)
+// see <fhc_base_dir>/public/.htaccess_sample for details
+$config['use_fhcomplete_build_version_in_path'] = false;
@@ -0,0 +1,11 @@
+<?php
+
+/*It defines which tags are available in LVVerwaltung and whether they are editable
+
+$config['lvverwaltung_tags'] = [
+	'tag_1' => ['readonly' => false],
+	'tag_1' => ['readonly' => true]
+];
+*/
+
+$config['lvverwaltung_tags'] = [];
@@ -64,7 +64,7 @@ $config['navigation_header'] = array(
 				'lehrveranstaltungen' => array(
 					'link' => site_url('lehre/lvplanung/LvTemplateUebersicht'),
 					'icon' => '',
-					'description' => 'Lehrveranstaltungen',
+					'description' => 'Lehrveranstaltungen Templates',
 					'sort' => 15
 				),
 				'reihungstest' => array(
@@ -81,6 +81,16 @@ $config['navigation_header'] = array(
 					'sort' => 30,
 					'requiredPermissions' => 'infocenter:r'
 				),
+				'lvverwaltung' => array(
+					'link' => site_url('LVVerwaltung'),
+					'icon' => '',
+					'description' => 'LV Verwaltung',
+					'requiredPermissions' => array(
+						'admin:r',
+						'assistenz:r'
+					),
+					'sort' => 35
+				),
 				'lehrauftrag' => array(
 					'link' => site_url('lehre/lehrauftrag/Lehrauftrag/Dashboard'),
 					'description' => 'Lehrauftrag',
@@ -326,3 +336,24 @@ $config['navigation_menu']['system/issues/Issues/*'] = array(
 		'requiredPermissions' => array('admin:rw')
 	),
 );
+
+$config['navigation_menu']['apps'] = [
+	'stv' => [
+		'link' => site_url('studentenverwaltung'),
+		'description' => 'Studierendenverwaltung',
+		#'icon' => 'users',
+		'requiredPermissions' => array('admin:r', 'assistenz:r')
+	],
+	'lvv' => [
+		'link' => site_url('lVVerwaltung'),
+		'description' => 'LV Verwaltung',
+		#'icon' => 'person-chalkboard',
+		'requiredPermissions' => array('admin:r', 'assistenz:r')
+	],
+	'lav' => [
+		'link' => site_url('lehre/lehrauftrag/Lehrauftrag/Dashboard'),
+		'description' => 'Lehraufträge',
+		#'icon' => 'person-chalkboard',
+		'requiredPermissions' => array('lehre/lehrauftrag_bestellen:r', 'lehre/lehrauftrag_erteilen:r')
+	]
+];
@@ -1,6 +1,6 @@
 <?php

-defined('BASEPATH') OR exit('No direct script access allowed');
+if (! defined('BASEPATH')) exit('No direct script access allowed');

 /*
 | -------------------------------------------------------------------------
@@ -51,7 +51,7 @@ defined('BASEPATH') OR exit('No direct script access allowed');
 |   my-controller/my-method -> my_controller/my_method
 */
 $route['default_controller'] = defined('CIS4') && CIS4 ? 'Cis4' : 'Vilesci';
-$route['translate_uri_dashes'] = FALSE;
+$route['translate_uri_dashes'] = false;

 // Class name conflicts
 $route['api/v1/organisation/[S|s]tudiengang/(:any)'] = 'api/v1/organisation/studiengang2/$1';
@@ -63,6 +63,14 @@ $route['api/v1/system/[S|s]prache/(:any)'] = 'api/v1/system/sprache2/$1';

 $route['Cis/LvPlan/.*'] = 'Cis/LvPlan/index/$1';
 $route['Cis/MyLvPlan/.*'] = 'Cis/MyLvPlan/index/$1';
+$route['Cis/MyLv/.*'] = 'Cis/MyLv/index/$1';
+
+$route['Abgabetool/Assistenz'] = 'Cis/Abgabetool/Assistenz';
+$route['Abgabetool/Assistenz/(:any)'] = 'Cis/Abgabetool/Assistenz/$1';
+$route['Abgabetool/Mitarbeiter'] = 'Cis/Abgabetool/Mitarbeiter';
+$route['Abgabetool/Student'] = 'Cis/Abgabetool/Student';
+$route['Abgabetool/Student/(:any)'] = 'Cis/Abgabetool/Student/$1';
+$route['Abgabetool/Deadlines'] = 'Cis/Abgabetool/Deadlines';

 // Studierendenverwaltung List Routes
 $route['api/frontend/v1/stv/[sS]tudents/inout'] = 'api/frontend/v1/stv/Students/index';
@@ -70,9 +78,9 @@ $route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})'] = 'api/frontend/v1/stv

 // (studiensemester_kurzbz)/inout[/(incoming|outgoing|gemeinsamestudien)]
 $route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/inout'] = 'api/frontend/v1/stv/Students/index';
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/inout/incoming'] = 'api/frontend/v1/stv/Students/getIncoming';
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/inout/outgoing'] = 'api/frontend/v1/stv/Students/getOutgoing';
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/inout/gemeinsamestudien'] = 'api/frontend/v1/stv/Students/getGemeinsamestudien';
+$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/inout/incoming'] = 'api/frontend/v1/stv/Students/getIncoming/$1';
+$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/inout/outgoing'] = 'api/frontend/v1/stv/Students/getOutgoing/$1';
+$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/inout/gemeinsamestudien'] = 'api/frontend/v1/stv/Students/getGemeinsamestudien/$1';

 // (studiengang_kz)/prestudent[/(studiensemester_kurzbz)[/(filter)[/(otherfilter)]]]
 $route['api/frontend/v1/stv/[sS]tudents/(-?[0-9]+)/prestudent'] = 'api/frontend/v1/stv/Students/getPrestudents/$1';
@@ -27,7 +27,7 @@ $config['student']['resultfields'] = [
 	"(p.vorname || ' ' || p.nachname) AS name",
 	"ARRAY[s.student_uid || '@' || '" . DOMAIN . "'] AS email",
 	"CASE
-		WHEN p.foto IS NOT NULL THEN 'data:image/jpeg' || CONVERT_FROM(DECODE('3b','hex'), 'UTF8') || 'base64,' || p.foto
+		WHEN (p.foto_sperre = false AND p.foto IS NOT NULL) THEN 'data:image/jpeg' || CONVERT_FROM(DECODE('3b','hex'), 'UTF8') || 'base64,' || p.foto
 		ELSE NULL END
 		AS photo_url",
 	"b.aktiv"
@@ -29,7 +29,7 @@ $config['similar'] = [

 $config['vector'] = [
 	'priority' => 1,
-	'rank' => "ts_rank({field}, to_tsquery('simple', {word}))",
-	'compare' => "to_tsquery('simple', {word}) @@ {field}"
+	'rank' => "ts_rank({field}, plainto_tsquery('simple', {word}))",
+	'compare' => "plainto_tsquery('simple', {word}) @@ {field}"
 ];

@@ -7,5 +7,43 @@ $CI =& get_instance();


 $config['student'] = $CI->config->item('student', 'search');
+$config['student']['searchfields']['pkz'] = [
+	'alias' => ['personenkennzeichen', 'personalid'],
+	'comparison' => 'equals',
+	'field' => 'matrikelnr'
+];
+$config['student']['searchfields']['matrnr'] = [
+	'alias' => ['matrikelnr', 'matrikelnummer', 'matrno', 'matriculationno', 'matriculationnumber', 'studno', 'studentno', 'studentnumber'],
+	'comparison' => 'equals',
+	'field' => 'matr_nr',
+	'join' => [
+		[
+			'table' => "public.tbl_prestudent",
+			'using' => "prestudent_id"
+		],
+		[
+			'table' => "public.tbl_person",
+			'using' => "person_id"
+		]
+	]
+];

 $config['prestudent'] = $CI->config->item('prestudent', 'search');
+$config['prestudent']['searchfields']['pkz'] = [
+	'alias' => ['personenkennzeichen', 'personalid'],
+	'comparison' => 'equals',
+	'field' => 'matrikelnr',
+	'join' => [
+		'table' => "public.tbl_student",
+		'using' => "prestudent_id"
+	]
+];
+$config['prestudent']['searchfields']['matrnr'] = [
+	'alias' => ['matrikelnr', 'matrikelnummer', 'matrno', 'matriculationno', 'matriculationnumber', 'studno', 'studentno', 'studentnumber'],
+	'comparison' => 'equals',
+	'field' => 'matr_nr',
+	'join' => [
+		'table' => "public.tbl_person",
+		'using' => "person_id"
+	]
+];
@@ -61,9 +61,13 @@ $config['tabs'] =
 		'notes' => [
 			//if true, the count of Messages will be shown in the header of the Tab Messages
 			'showCountNotes' => true
-		]
+		],
+		'combinePeople' => [
+			//multitab should only be shown with this length of selection
+			'validCountMulti' => 2,
+		],
 	];
-	
+
 // List of fields to show when ZGV_DOKTOR_ANZEIGEN is defined
 $fieldsZgvDoktor = ['zgvdoktorort', 'zgvdoktordatum', 'zgvdoktornation', 'zgvdoktor_erfuellt', 'zgvdoktor_code'];

@@ -83,3 +87,46 @@ if (!defined('ZGV_DOKTOR_ANZEIGEN') || !ZGV_DOKTOR_ANZEIGEN) {
 		$fieldsZgvDoktor
 	);
 }
+
+$config['tabs']['projektarbeit']['defaultProjektbetreuerStunden'] =
+	defined('FAS_STUDIERENDE_PROJEKTARBEIT_DEFAULT_BETREUER_STUNDEN_BACHELOR')
+	? FAS_STUDIERENDE_PROJEKTARBEIT_DEFAULT_BETREUER_STUNDEN_BACHELOR
+	: '0.0';
+$config['tabs']['projektarbeit']['defaultProjektbetreuerStundenDiplom'] =
+	defined('FAS_STUDIERENDE_PROJEKTARBEIT_DEFAULT_BETREUER_STUNDEN_MASTER')
+	? FAS_STUDIERENDE_PROJEKTARBEIT_DEFAULT_BETREUER_STUNDEN_MASTER
+	: '0.0';
+$config['tabs']['projektarbeit']['defaultProjektbetreuerStundensatz'] = '80.0';
+
+$config['student_tab_order'] = [
+	'details',
+	'notes',
+	'messages',
+	'contact',
+	'prestudent',
+	'status',
+	'documents',
+	'archive',
+	'banking',
+	'grades',
+	'exam',
+	'exemptions',
+	'projektarbeit',
+	'finalexam',
+	'mobility',
+	'jointstudies',
+	'admissionDates',
+	'groups',
+	'functions',
+	'coursedates',
+	'resources',
+];
+$config['students_tab_order'] = [
+	'banking',
+	'status',
+	'messages',
+	'groups',
+	'finalexam',
+	'combinePeople',
+	'archive',
+];
@@ -14,10 +14,10 @@ class Abgabetool extends Auth_Controller
 	{
 		parent::__construct([
 			'index' => self::PERM_LOGGED,
-			'getStudentProjektarbeitAbgabeFile' => self::PERM_LOGGED,
-			'Mitarbeiter' => self::PERM_LOGGED,
-			'Student' => self::PERM_LOGGED,
-			'Deadlines' => self::PERM_LOGGED
+			'Mitarbeiter' => array('basis/abgabe_lektor:rw', 'basis/abgabe_assistenz:rw'),
+			'Assistenz' => array('basis/abgabe_assistenz:rw'),
+			'Student' =>  array('basis/abgabe_student:rw', 'basis/abgabe_lektor:rw', 'basis/abgabe_assistenz:rw'),
+			'Deadlines' => array('basis/abgabe_lektor:rw', 'basis/abgabe_assistenz:rw')
 		]);
 	}

@@ -29,80 +29,69 @@ class Abgabetool extends Auth_Controller
 	 */
 	public function index()
 	{
+		// TODO: routing from index based on berechtigung?

 		$viewData = array(
 			'uid'=>getAuthUID(),
 		);

-		$this->load->view('CisRouterView/CisRouterView.php', ['viewData' => $viewData, 'route' => 'Abgabetool']);
+		if(defined('CIS4') && CIS4) {
+			$this->load->view('CisRouterView/CisRouterView.php', ['viewData' => $viewData, 'route' => 'Abgabetool']);
+		} else {
+			$this->load->view('Cis/Abgabetool.php', ['uid' => getAuthUID(), 'route' => 'Abgabetool']);
+		}
 	}

-	public function Student()
+	public function Student($student_uid_prop = '')
 	{
-
 		$viewData = array(
 			'uid'=>getAuthUID(),
 		);
-
-		$this->load->view('CisRouterView/CisRouterView.php', ['viewData' => $viewData, 'route' => 'AbgabetoolStudent']);
+		
+		if(defined('CIS4') && CIS4) {
+			$this->load->view('CisRouterView/CisRouterView.php', ['viewData' => $viewData, 'route' => 'AbgabetoolStudent']);
+		} else {
+			$this->load->view('Cis/Abgabetool.php', ['uid' => getAuthUID(), 'route' => 'AbgabetoolStudent', 'student_uid_prop' => $student_uid_prop]);
+		}
 	}

 	public function Mitarbeiter()
 	{
-
 		$viewData = array(
 			'uid'=>getAuthUID(),
 		);

-		$this->load->view('CisRouterView/CisRouterView.php', ['viewData' => $viewData, 'route' => 'AbgabetoolMitarbeiter']);
+		if(defined('CIS4') && CIS4) {
+			$this->load->view('CisRouterView/CisRouterView.php', ['viewData' => $viewData, 'route' => 'AbgabetoolMitarbeiter']);
+		} else {
+			$this->load->view('Cis/Abgabetool.php', ['uid' => getAuthUID(), 'route' => 'AbgabetoolMitarbeiter']);
+		}
 	}

+	public function Assistenz($stg_kz_prop = '')
+	{
+		
+		$viewData = array(
+			'uid'=>getAuthUID(),
+		);
+
+		if(defined('CIS4') && CIS4) {
+			$this->load->view('CisRouterView/CisRouterView.php', ['viewData' => $viewData, 'route' => 'AbgabetoolAssistenz']);
+		} else {
+			$this->load->view('Cis/Abgabetool.php', ['uid' => getAuthUID(), 'route' => 'AbgabetoolAssistenz', 'stg_kz_prop' => $stg_kz_prop]);
+		}
+	}
+	
 	public function Deadlines()
 	{
-
 		$viewData = array(
 			'uid'=>getAuthUID(),
 		);

-		$this->load->view('CisRouterView/CisRouterView.php', ['viewData' => $viewData, 'route' => 'DeadlinesOverview']);
-	}
-
-
-	public function getStudentProjektarbeitAbgabeFile() 
-	{
-		$this->_ci =& get_instance();
-		$this->_ci->load->helper('download');
-		
-		$paabgabe_id = $this->_ci->input->get('paabgabe_id');
-		$student_uid = $this->_ci->input->get('student_uid');
-
-		if (!isset($paabgabe_id) || isEmptyString($paabgabe_id) || !isset($student_uid) || isEmptyString($student_uid))
-			$this->terminateWithJsonError($this->p->t('global', 'wrongParameters'), 'general');
-		
-		$this->_ci->load->model('education/Projektarbeit_model', 'ProjektarbeitModel');
-
-		$isZugeteilterBetreuer = count($this->_ci->ProjektarbeitModel->checkZuordnung($student_uid, getAuthUID())->retval) > 0;
-		
-		if(getAuthUID() == $student_uid || $isZugeteilterBetreuer) {
-			$file_path = PAABGABE_PATH.$paabgabe_id.'_'.$student_uid.'.pdf';
-			if(file_exists($file_path)) {
-				
-				header('Content-Description: File Transfer');
-				header('Content-Type: application/octet-stream');
-				header('Expires: 0');
-				header('Cache-Control: must-revalidate');
-				header('Pragma: public');
-				header('Content-Disposition: attachment; filename="'.basename($file_path).'"');
-				header('Content-Length: ' . filesize($file_path));
-
-				flush(); // send headers first just in case
-				readfile($file_path); // read file content to output buffer
-				
-			} else {
-				$this->terminateWithJsonError('File not found');
-			}
+		if(defined('CIS4') && CIS4) {
+			$this->load->view('CisRouterView/CisRouterView.php', ['viewData' => $viewData, 'route' => 'DeadlinesOverview']);
 		} else {
-			$this->terminateWithJsonError('Keine Zuordnung!');
+			$this->load->view('Cis/Abgabetool.php', ['uid' => getAuthUID(), 'route' => 'DeadlinesOverview']);
 		}
 	}
 }
@@ -72,7 +72,7 @@ class Documents extends Auth_Controller

 		$stgs = [];
 		$stsemArray = [];
-		$buchungstypen = implode('\',\'', defined("CIS_DOKUMENTE_STUDIENBEITRAG_TYPEN") ? unserialize(CIS_DOKUMENTE_STUDIENBEITRAG_TYPEN) : []);
+		$buchungstypen = defined("CIS_DOKUMENTE_STUDIENBEITRAG_TYPEN") ? unserialize(CIS_DOKUMENTE_STUDIENBEITRAG_TYPEN) : [];
 		$person_ids = [];
 		foreach ($stati as $status) {
 			$person_ids[] = $status->person_id;
@@ -9,54 +9,21 @@ if (!defined('BASEPATH'))
 class ProfilUpdate extends Auth_Controller
 {

-	public static $STATUS_PENDING = NULL;
-	public static $STATUS_ACCEPTED = NULL;
-	public static $STATUS_REJECTED = NULL;
-
-	public static $TOPICS = [];
-
-
 	public function __construct()
 	{
 		parent::__construct([
 			'index' => ['student/stammdaten:r', 'mitarbeiter/stammdaten:r'],
-			'id' => ['student/stammdaten:r', 'mitarbeiter/stammdaten:r'],
-			'getProfilUpdateWithPermission' => ['student/stammdaten:r', 'mitarbeiter/stammdaten:r'],
-			'acceptProfilRequest' => ['student/stammdaten:rw', 'mitarbeiter/stammdaten:rw'],
-			'denyProfilRequest' => ['student/stammdaten:rw', 'mitarbeiter/stammdaten:rw'],
-			'show' => ['basis/cis:r'],
-
-			'insertProfilRequest' => ['basis/cis:rw'],
-			'updateProfilRequest' => ['basis/cis:rw'],
-			'deleteProfilRequest' => ['basis/cis:rw'],
-			'selectProfilRequest' => ['basis/cis:r'],
-			'insertFile' => ['basis/cis:rw'],
-			'getProfilRequestFiles' => ['basis/cis:r'],
-			'getStatus' => ['basis/cis:r'],
-			'getTopic' => ['basis/cis:r'],
+			'show' => ['student/stammdaten:r', 'mitarbeiter/stammdaten:r', 'basis/cis:r'],
+			'id' => ['student/stammdaten:r', 'mitarbeiter/stammdaten:r']
 		]);

-		$this->load->config('cis');
-
 		$this->load->model('person/Profil_update_model', 'ProfilUpdateModel');
-		$this->load->model('person/Kontakt_model', 'KontaktModel');
-		$this->load->model('person/Adresse_model', 'AdresseModel');
-		$this->load->model('person/Adressentyp_model', 'AdressenTypModel');
-		$this->load->model('person/Person_model', 'PersonModel');
 		$this->load->model('ressource/mitarbeiter_model', 'MitarbeiterModel');
 		$this->load->model('crm/Student_model', 'StudentModel');
-		$this->load->model('person/Benutzer_model', 'BenutzerModel');
-		$this->load->model('system/Sprache_model', 'SpracheModel');
-		$this->load->model('person/Profil_update_status_model', 'ProfilUpdateStatusModel');
-		$this->load->model('person/Profil_update_topic_model', 'ProfilUpdateTopicModel');

 		// Load language phrases
 		$this->loadPhrases(
 			array(
-				'ui',
-				'global',
-				'person',
-				'profil',
 				'profilUpdate'
 			)
 		);
@@ -64,32 +31,10 @@ class ProfilUpdate extends Auth_Controller
 		$this->load->library('DmsLib');
 		$this->load->library('PermissionLib');

-		//? put the uid and pid inside the controller for reusability
 		$this->uid = getAuthUID();
 		$this->pid = getAuthPersonID();
-
-		// setup the ProfilUpdate states
-		$this->ProfilUpdateStatusModel->addSelect(['status_kurzbz']);
-		$status_kurzbz = $this->ProfilUpdateStatusModel->load();
-		if (hasData($status_kurzbz)) {
-			list($status_pending, $status_accepted, $status_rejected) = getData($status_kurzbz);
-
-			self::$STATUS_PENDING = $status_pending->status_kurzbz;
-			self::$STATUS_ACCEPTED = $status_accepted->status_kurzbz;
-			self::$STATUS_REJECTED = $status_rejected->status_kurzbz;
-		}
-		// setup the ProfilUpdate topics
-		$this->ProfilUpdateTopicModel->addSelect(['topic_kurzbz']);
-		$topic_kurzbz = $this->ProfilUpdateTopicModel->load();
-
-		if (hasData($topic_kurzbz)) {
-			foreach (getData($topic_kurzbz) as $topic) {
-				self::$TOPICS[$topic->topic_kurzbz] = $topic->topic_kurzbz;
-			}
-		}
 	}

-
 	public function index()
 	{
 		$this->load->view('Cis/ProfilUpdate');
@@ -100,129 +45,14 @@ class ProfilUpdate extends Auth_Controller
 		$this->load->view('Cis/ProfilUpdate', ['profil_update_id' => $profil_update_id]);
 	}

-	public function getStatus()
-	{
-		echo json_encode([self::$STATUS_PENDING => self::$STATUS_PENDING, self::$STATUS_ACCEPTED => self::$STATUS_ACCEPTED, self::$STATUS_REJECTED => self::$STATUS_REJECTED]);
-	}
-
-	public function getTopic()
-	{
-		echo json_encode(self::$TOPICS);
-	}
-
-	private function sendEmail_onProfilUpdate_response($uid, $topic, $status)
-	{
-		if($this->config->item('cis_send_profil_update_mails') === false)
-		{
-			return;
-		}
-
-		$this->load->helper('hlp_sancho_helper');
-		$email = $uid . "@" . DOMAIN;
-
-
-		function languageQuery($language)
-		{
-			return "select index from public.tbl_sprache where sprache = '" + $language + "'";
-		}
-		$this->ProfilUpdateStatusModel->addSelect(["bezeichnung_mehrsprachig[(" . languageQuery('German') . ")] as status_de", "bezeichnung_mehrsprachig[(" . languageQuery('English') . ")] as status_en"]);
-		$status_translation = $this->ProfilUpdateStatusModel->loadWhere(["status_kurzbz" => $status]);
-		if (isError($status_translation)) {
-			show_error($this->p->t('profilUpdate', 'ProfilUpdateStatusTranslationError'));
-		}
-		$status_translation = hasData($status_translation) ? getData($status_translation)[0] : null;
-		if (isset($status_translation)) {
-			$mail_res = sendSanchoMail("profil_update_response", ['topic' => $topic, 'status_de' => $status_translation->status_de, 'status_en' => $status_translation->status_en, 'href' => APP_ROOT . 'Cis/Profil'], $email, ("Profil Änderung " . $this->p->t('profilUpdate', 'pending')));
-			if (!$mail_res) {
-				show_error($this->p->t('profilUpdate', 'profilUpdate_email_error'));
-			}
-		}
-
-	}
-
-
-	private function sendEmail_onProfilUpdate_insertion($uid, $profil_update_id, $topic)
-	{
-		if($this->config->item('cis_send_profil_update_mails') === false)
-		{
-			return;
-		}
-
-		$this->load->helper('hlp_sancho_helper');
-		$emails = [];
-
-		$isMitarbeiter_res = $this->MitarbeiterModel->isMitarbeiter($uid);
-		if (isError($isMitarbeiter_res)) {
-			show_error($this->p->t('profilUpdate', 'profilUpdate_mitarbeiterCheck_error'));
-		}
-		$isMitarbeiter_res = getData($isMitarbeiter_res);
-
-		//! if the $uid is a mitarbeiter and student, only the hr is notified by email
-		if ($isMitarbeiter_res) {
-			//? user is not a student therefore he is a mitarbeiter, send email to Personalverwaltung
-			//? use constant variable MAIL_GST to mail to the personalverwaltung
-			$this->MitarbeiterModel->addSelect([TRUE]);
-			$this->MitarbeiterModel->addJoin("public.tbl_benutzer", "public.tbl_benutzer.uid = public.tbl_mitarbeiter.mitarbeiter_uid");
-			//? check if the the userID is a mitarbeiter and if the benutzer is active
-			$res = $this->MitarbeiterModel->loadWhere(["public.tbl_mitarbeiter.mitarbeiter_uid" => $uid, "public.tbl_benutzer.aktiv" => TRUE]);
-			if (isError($res)) {
-				show_error("was not able to query the mitarbeiter and benutzer by the uid: " . $uid);
-			}
-			if (hasData($res)) {
-				array_push($emails, MAIL_GST);
-			} else {
-				show_error($this->p->t('profilUpdate', 'profilUpdate_mitarbeiterCheck_error'));
-			}
-		} else {
-			//? if it is not a mitarbeiter, check whether it is a student and send email to studiengang
-			$isStudent_res = $this->StudentModel->isStudent($uid);
-			if (isError($isStudent_res)) {
-				show_error($this->p->t('profilUpdate', 'profilUpdate_studentCheck_error'));
-			}
-			$isStudent_res = getData($isStudent_res);
-			if ($isStudent_res) {
-				//? Send email to the Studiengangsassistentinnen
-				$this->StudentModel->addSelect(["public.tbl_studiengang.email"]);
-				$this->StudentModel->addJoin("public.tbl_benutzer", "public.tbl_benutzer.uid = public.tbl_student.student_uid");
-				$this->StudentModel->addJoin("public.tbl_prestudent", "public.tbl_benutzer.person_id = public.tbl_prestudent.person_id");
-				$this->StudentModel->addJoin("public.tbl_prestudentstatus", "public.tbl_prestudentstatus.prestudent_id = public.tbl_prestudent.prestudent_id");
-				$this->StudentModel->addJoin("public.tbl_studiengang", "public.tbl_studiengang.studiengang_kz = public.tbl_prestudent.studiengang_kz");
-				//* check if the benutzer itself is active
-				//* check if the student status is Student or Diplomand (active students)
-				$this->StudentModel->db->where_in("public.tbl_prestudentstatus.status_kurzbz", ['Student', 'Diplomand']);
-				$res = $this->StudentModel->loadWhere(["public.tbl_benutzer.aktiv" => TRUE, "public.tbl_student.student_uid" => $uid]);
-				if (isError($res)) {
-					show_error(getData($res));
-				} else {
-					$res = hasData($res) ? getData($res) : [];
-					foreach ($res as $emailObj) {
-						array_push($emails, $emailObj->email);
-					}
-				}
-			}
-		}
-		$mail_res = [];
-		//? sending email
-		foreach ($emails as $email) {
-			array_push($mail_res, sendSanchoMail("profil_update", ['uid' => $uid, 'topic' => $topic, 'href' => APP_ROOT . 'Cis/ProfilUpdate/id/' . $profil_update_id], $email, ("Profil Änderung von " . $uid)));
-		}
-		foreach ($mail_res as $m_res) {
-			if (!$m_res) {
-				show_error($this->p->t('profilUpdate', 'profilUpdate_email_error'));
-			}
-		}
-
-	}
-
-
 	public function show($dms_id)
 	{
-
 		$profil_update = $this->ProfilUpdateModel->loadWhere(['attachment_id' => $dms_id]);
 		$profil_update = hasData($profil_update) ? getData($profil_update)[0] : null;

 		//? checks if an profil update exists with the dms_id requested from the user
-		if ($profil_update) {
+		if ($profil_update)
+		{
 			$is_mitarbeiter_profil_update = getData($this->MitarbeiterModel->isMitarbeiter($profil_update->uid));
 			$is_student_profil_update = getData($this->StudentModel->isStudent($profil_update->uid));

@@ -230,7 +60,8 @@ class ProfilUpdate extends Auth_Controller
 				$this->permissionlib->isBerechtigt('student/stammdaten:r') && $is_student_profil_update ||
 				$this->permissionlib->isBerechtigt('mitarbeiter/stammdaten:r') && $is_mitarbeiter_profil_update ||
 				$this->uid == $profil_update->uid
-			) {
+			)
+			{
 				// Get file to be downloaded from DMS
 				$newFilename = $this->uid . "/document_" . $dms_id;
 				$download = $this->dmslib->download($dms_id);
@@ -239,576 +70,17 @@ class ProfilUpdate extends Auth_Controller

 				// Download file
 				$this->outputFile(getData($download));
-
-
-			} else {
+			}
+			else
+			{
 				show_error($this->p->t('profilUpdate', 'profilUpdate_permission_error'));
 				return;
 			}
-
-		} else {
+		}
+		else
+		{
 			show_error($this->p->t('profilUpdate', 'profilUpdate_dms_error'));
 			return;
 		}
-
 	}
-
-
-	public function insertFile($replace)
-	{
-		$replace = json_decode($replace);
-
-		if (!count($_FILES)) {
-			echo json_encode([]);
-			return;
-		}
-
-		//? if replace is set it contains the profil_update_id in which the attachment_id has to be replaced
-		if (isset($replace)) {
-			$this->ProfilUpdateModel->addSelect(["attachment_id"]);
-			$profilUpdate = $this->ProfilUpdateModel->load([$replace]);
-			if (isError($profilUpdate)) {
-				return json_encode(error($this->p->t('profilUpdate', 'profilUpdate_loading_error')));
-			}
-			//? get the attachmentID
-			$dms_id = hasData($profilUpdate) ? getData($profilUpdate)[0]->attachment_id : null;
-
-			//? delete old dms_file of Profil Update
-			$this->deleteOldVersionFile($dms_id);
-		}
-
-
-		$files = $_FILES['files'];
-		$file_count = count($files['name']);
-
-		$res = [];
-
-		for ($i = 0; $i < $file_count; $i++) {
-			$_FILES['files']['name'] = $files['name'][$i];
-			$_FILES['files']['type'] = $files['type'][$i];
-			$_FILES['files']['tmp_name'] = $files['tmp_name'][$i];
-			$_FILES['files']['error'] = $files['error'][$i];
-			$_FILES['files']['size'] = $files['size'][$i];
-
-			$dms = [
-				"kategorie_kurzbz" => "profil_aenderung",
-				"version" => 0,
-				"name" => $_FILES['files']['name'],
-				"mimetype" => $_FILES['files']['type'],
-				"beschreibung" => $this->uid . " Profil Änderung",
-				"insertvon" => $this->uid,
-				"insertamum" => "NOW()",
-			];
-
-			$tmp_res = $this->dmslib->upload($dms, 'files', array("jpg", "png", "pdf"));
-
-			$tmp_res = hasData($tmp_res) ? getData($tmp_res) : null;
-			array_push($res, $tmp_res);
-		}
-
-		echo json_encode($res);
-	}
-
-
-	public function selectProfilRequest()
-	{
-		$_GET = json_decode($this->input->raw_input_stream, true);
-		$uid = $this->input->get('uid');
-		$id = $this->input->get('id');
-		$whereClause = ['uid' => $this->uid];
-
-		if (isset($uid))
-			$whereClause['uid'] = $uid;
-		if (isset($id))
-			$whereClause['id'] = $id;
-
-		$res = $this->ProfilUpdateModel->getProfilUpdatesWhere($whereClause);
-		$res = hasData($res) ? getData($res) : null;
-		echo json_encode($res);
-
-	}
-
-
-	public function getProfilRequestFiles()
-	{
-		$id = json_decode($this->input->raw_input_stream);
-
-		$this->ProfilUpdateModel->addSelect(["attachment_id"]);
-		$attachmentID = $this->ProfilUpdateModel->load([$id]);
-		if (isError($attachmentID)) {
-			return json_encode(error($this->p->t('profilUpdate', 'profilUpdate_loading_error')));
-		}
-		//? get the attachmentID
-		$dms_id = hasData($attachmentID) ? getData($attachmentID)[0]->attachment_id : null;
-
-		//? get the name to the file
-		$this->DmsVersionModel->addSelect(["name", "dms_id"]);
-		$attachment = $this->DmsVersionModel->load([$dms_id, 0]);
-		if (isError($attachment)) {
-			return json_encode(error($this->p->t('profilUpdate', 'profilUpdate_dmsVersion_error')));
-		}
-		$attachment = hasData($attachment) ? getData($attachment) : null;
-		//? returns {name:..., dms_id:...}
-		echo json_encode($attachment);
-	}
-
-	public function insertProfilRequest()
-	{
-
-		$json = json_decode($this->input->raw_input_stream);
-
-		$payload = $json->payload;
-		$identifier = property_exists($json->payload, "kontakt_id") ? "kontakt_id" : (property_exists($json->payload, "adresse_id") ? "adresse_id" : null);
-
-		$data = ["topic" => $json->topic, "uid" => $this->uid, "requested_change" => json_encode($payload), "insertamum" => "NOW()", "insertvon" => $this->uid, "status" => self::$STATUS_PENDING ?: 'Pending'];
-
-		//? insert fileID in the dataset if sent with post request
-		if (isset($json->fileID)) {
-			$data['attachment_id'] = $json->fileID;
-
-		}
-
-		//? loops over all updateRequests from a user to validate if the new request is valid
-		$res = $this->ProfilUpdateModel->getProfilUpdatesWhere(["uid" => $this->uid]);
-		if (isError($res)) {
-			show_error($this->p->t('profilUpdate', 'profilUpdate_loading_error'));
-		}
-		$res = hasData($res) ? getData($res) : null;
-
-		//? the user cannot delete a zustelladresse/kontakt
-		if (isset($payload->delete) && $payload->{$identifier == "kontakt_id" ? "zustellung" : "zustelladresse"}) {
-			echo json_encode(error($this->p->t('profilUpdate', 'profilUpdate_deleteZustellung_error')));
-			return;
-		}
-
-		//? if the user tries to delete a adresse, checks whether the adresse is a heimatadresse, if so an error is raised
-		if (isset($payload->delete) && $identifier == "adresse_id") {
-			$adr = $this->AdresseModel->load($payload->$identifier);
-			$adr = getData($adr)[0];
-			if ($adr->heimatadresse) {
-				echo json_encode(error($this->p->t('profilUpdate', 'profilUpdate_deleteZustellung_error')));
-				return;
-			}
-		}
-
-		if ($res) {
-			$pending_changes = array_filter($res, function ($element) {
-				return $element->status == (self::$STATUS_PENDING ?: "Pending");
-			});
-
-			foreach ($pending_changes as $update_request) {
-				$existing_change = $update_request->requested_change;
-
-				//? the user can add as many new kontakte/adressen as he likes
-				if (!isset($payload->add) && property_exists($existing_change, $identifier) && property_exists($payload, $identifier) && $existing_change->$identifier == $payload->$identifier) {
-					//? the kontakt_id / adresse_id of a change has to be unique 
-					echo json_encode(error($this->p->t('profilUpdate', 'profilUpdate_changeTwice_error')));
-					return;
-				}
-
-				//? if it is not updating any kontakt/adresse, the topic has to be unique
-				elseif (!$identifier && $update_request->topic == $json->topic) {
-					echo json_encode(error($this->p->t('profilUpdate', 'profilUpdate_changeTopicTwice_error', ['0' => $update_request->topic])));
-					return;
-				}
-			}
-		}
-
-		$insertID = $this->ProfilUpdateModel->insert($data);
-
-		if (isError($insertID)) {
-			show_error(getData($insertID));
-		} else {
-			$insertID = hasData($insertID) ? getData($insertID) : null;
-
-			//? sends emails to the correspondents of the $uid
-			$this->sendEmail_onProfilUpdate_insertion($this->uid, $insertID, $json->topic);
-			echo json_encode(success($insertID));
-		}
-	}
-
-	public function updateProfilRequest()
-	{
-		$json = json_decode($this->input->raw_input_stream);
-
-		$updateData = ["requested_change" => json_encode($json->payload), "updateamum" => "NOW()", "updatevon" => $this->uid];
-		if (isset($json->fileID)) {
-			$updateData['attachment_id'] = json_decode($json->fileID);
-		}
-		$updateID = $this->ProfilUpdateModel->update([$json->ID], $updateData);
-		//? insert fileID in the dataset if sent with post request
-
-		if (isError($updateID)) {
-			//catch error
-		} else {
-			$updateID = hasData($updateID) ? getData($updateID)[0] : null;
-			//TODO: should an email be sent to the responsable people when the user changes his profil update
-			echo json_encode(success($updateID));
-		}
-	}
-
-	public function deleteProfilRequest()
-	{
-
-		$json = json_decode($this->input->raw_input_stream);
-		$delete_res = $this->ProfilUpdateModel->delete([$json]);
-		echo json_encode($delete_res);
-	}
-
-
-	public function getProfilUpdateWithPermission($status = null)
-	{
-		// early return if no status has been passed as argument
-		if (!isset($status)) {
-			echo json_encode($this->ProfilUpdateModel->getProfilUpdateWithPermission());
-			return;
-		}
-
-		// get the sprache of the user
-		$sprachenIndex = $this->SpracheModel->loadWhere(["sprache" => getUserLanguage()]);
-		$sprachenIndex = hasData($sprachenIndex) ? getData($sprachenIndex)[0]->index : null;
-
-		if (isset($sprachenIndex) && isset($status)) {
-			// get the corresponding status kurz_bz primary key out of the translation
-			$status = $this->ProfilUpdateStatusModel->execReadOnlyQuery("select * from public.tbl_profil_update_status where ? = ANY(bezeichnung_mehrsprachig)", [$status]);
-			$status = hasData($status) ? getData($status)[0]->status_kurzbz : null;
-			$res = $this->ProfilUpdateModel->getProfilUpdateWithPermission(isset($status) ? ['status' => $status] : null);
-
-			echo json_encode($res);
-		}
-	}
-
-
-
-	private function getOE_from_student($student_uid)
-	{
-
-		//? returns the oe_einheit eines Studenten 
-		$query = "SELECT public.tbl_studiengang.oe_kurzbz
-		FROM public.tbl_student
-		JOIN public.tbl_studiengang ON tbl_student.studiengang_kz = public.tbl_studiengang.studiengang_kz
-		WHERE public.tbl_student.student_uid = ?;";
-
-		$res = $this->StudentModel->execReadOnlyQuery($query, [$student_uid]);
-		if (!isSuccess($res)) {
-			show_error($this->p->t('profilUpdate', 'profilUpdate_loadingOE_error'));
-		}
-		$res = hasData($res) ? getData($res) : [];
-		$res = array_map(
-			function ($item) {
-				return $item->oe_kurzbz;
-			},
-			$res
-		);
-		return $res;
-	}
-
-
-	public function acceptProfilRequest()
-	{
-		$_POST = json_decode($this->input->raw_input_stream, true);
-		$id = $this->input->post('profil_update_id', true);
-		$uid = $this->input->post('uid', true);
-
-		//? fetching person_id using UID
-		$personID = $this->PersonModel->getByUid($uid);
-		$personID = hasData($personID) ? getData($personID)[0]->person_id : null;
-		$status_message = $this->input->post('status_message', true);
-		$topic = $this->input->post('topic', true);
-
-		//! somehow the xss check converted boolean false to empty string
-		$requested_change = $this->input->post('requested_change');
-
-		//! check for required information
-		if (!isset($id) || !isset($uid) || !isset($personID) || !isset($requested_change) || !isset($topic)) {
-			return json_encode(error($this->p->t('profilUpdate', 'profilUpdate_requiredInformation_error')));
-		}
-
-		$is_mitarbeiter_profil_update = getData($this->MitarbeiterModel->isMitarbeiter($uid));
-		$is_student_profil_update = getData($this->StudentModel->isStudent($uid));
-
-
-		//? check if the permissions are set correctly
-		if (
-			$this->permissionlib->isBerechtigt('student/stammdaten', "suid", $this->getOE_from_student($uid)) && $is_student_profil_update ||
-			$this->permissionlib->isBerechtigt('mitarbeiter/stammdaten', "suid") && $is_mitarbeiter_profil_update
-		) {
-
-			if (is_array($requested_change) && array_key_exists("adresse_id", $requested_change)) {
-				$insertID = $this->handleAdresse($requested_change, $personID);
-				$insertID = hasData($insertID) ? getData($insertID) : null;
-				if (isset($insertID)) {
-					$requested_change['adresse_id'] = $insertID;
-					$update_res = $this->updateRequestedChange($id, $requested_change);
-					if (isError($update_res)) {
-						echo json_encode(error($this->p->t('profilUpdate', 'profilUpdate_address_error', [$insertID])));
-						return;
-					}
-				}
-
-			} else if (is_array($requested_change) && array_key_exists("kontakt_id", $requested_change)) {
-				$insertID = $this->handleKontakt($requested_change, $personID);
-				$insertID = hasData($insertID) ? getData($insertID) : null;
-				if (isset($insertID)) {
-					$requested_change['kontakt_id'] = $insertID;
-					$update_res = $this->updateRequestedChange($id, $requested_change);
-					if (isError($update_res)) {
-						echo json_encode(error($this->p->t('profilUpdate', 'profilUpdate_kontakt_error', [$insertID])));
-						return;
-					}
-				}
-
-
-			} else {
-				switch ($topic) {
-					// mapping phrasen to database columns to make the update with the correct column names
-					case self::$TOPICS['Titel']:
-						$topic = "titelpre";
-						break;
-					case self::$TOPICS['Postnomen']:
-						$topic = "titelpost";
-						break;
-					case self::$TOPICS['Vorname']:
-						$topic = "vorname";
-						break;
-					case self::$TOPICS['Nachname']:
-						$topic = "nachname";
-						break;
-					default:
-						show_error($this->p->t('profilUpdate', 'profilUpdate_topic_error', [$topic]));
-						return;
-				}
-
-				$result = $this->PersonModel->update($personID, [$topic => $requested_change["value"]]);
-				if (isError($result)) {
-					echo json_encode(error($this->p->t('profilUpdate', 'profilUpdate_insert_error')));
-					return;
-				}
-			}
-			$this->sendEmail_onProfilUpdate_response($uid, $topic, self::$STATUS_ACCEPTED);
-
-			echo json_encode($this->setStatusOnUpdateRequest($id, self::$STATUS_ACCEPTED, $status_message, $requested_change));
-		} else {
-			show_error($this->p->t('profilUpdate', 'profilUpdate_permission_error'));
-		}
-
-
-	}
-
-	public function denyProfilRequest()
-	{
-
-		$_POST = json_decode($this->input->raw_input_stream, true);
-		$id = $this->input->post('profil_update_id', true);
-		$uid = $this->input->post('uid', true);
-		$topic = $this->input->post('topic', true);
-		$status_message = $this->input->post('status_message', true);
-
-		$is_mitarbeiter_profil_update = getData($this->MitarbeiterModel->isMitarbeiter($uid));
-		$is_student_profil_update = getData($this->StudentModel->isStudent($uid));
-
-
-		if (
-			$this->permissionlib->isBerechtigt('student/stammdaten', "suid", $this->getOE_from_student($uid)) && $is_student_profil_update ||
-			$this->permissionlib->isBerechtigt('mitarbeiter/stammdaten', "suid") && $is_mitarbeiter_profil_update
-		) {
-			$this->sendEmail_onProfilUpdate_response($uid, $topic, self::$STATUS_REJECTED);
-			echo json_encode($this->setStatusOnUpdateRequest($id, self::$STATUS_REJECTED, $status_message));
-		} else {
-			show_error($this->p->t('profilUpdate', 'profilUpdate_permission_error'));
-		}
-
-
-	}
-
-	private function updateRequestedChange($id, $requested_change)
-	{
-		return $this->ProfilUpdateModel->update([$id], ['requested_change' => json_encode($requested_change)]);
-	}
-
-	private function setStatusOnUpdateRequest($id, $status, $status_message)
-	{
-		return $this->ProfilUpdateModel->update([$id], ["status" => $status, "status_timestamp" => "NOW()", "status_message" => $status_message]);
-	}
-
-	private function deleteOldVersionFile($dms_id)
-	{
-		if (!isset($dms_id)) {
-			return;
-		}
-
-		//? collect all the results of the deleted versions in an array 
-		$res = array();
-
-		//? delete all the different versions of the dms_file
-		$dmsVersions = $this->DmsVersionModel->loadWhere(["dms_id" => $dms_id]);
-		$dmsVersions = hasData($dmsVersions) ? getData($dmsVersions) : null;
-		if (isset($dmsVersions)) {
-			$zwischen_res = array_map(function ($item) {
-				return $item->version;
-			}, $dmsVersions);
-			foreach ($zwischen_res as $version) {
-				array_push($res, $this->DmsVersionModel->delete([$dms_id, $version]));
-			}
-		} else {
-			echo json_encode(error($this->p->t('profilUpdate', 'profilUpdate_dmsVersion_error')));
-		}
-
-		//? returns a result for each deleted dms_file
-		return $res;
-	}
-
-
-	private function handleKontakt($requested_change, $personID)
-	{
-		$kontakt_id = $requested_change["kontakt_id"];
-		//? removes the kontakt_id because we don't want to update the kontakt_id in the database
-		unset($requested_change["kontakt_id"]);
-
-
-		//! ADD
-		if (array_key_exists('add', $requested_change) && $requested_change['add']) {
-			//? removes add flag
-			unset($requested_change['add']);
-			$requested_change['person_id'] = $personID;
-			$requested_change['insertamum'] = "NOW()";
-			$requested_change['insertvon'] = getAuthUID();
-			$insertID = $this->KontaktModel->insert($requested_change);
-			$insert_kontakt_id = $insertID;
-			if (isError($insert_kontakt_id)) {
-				show_error($this->p->t('profilUpdate', 'profilUpdate_insertKontakt_error'));
-			}
-			$insert_kontakt_id = hasData($insert_kontakt_id) ? getData($insert_kontakt_id) : null;
-			if ($insert_kontakt_id) {
-				$this->handleDupplicateZustellKontakte($requested_change['zustellung'], $insert_kontakt_id);
-			}
-
-
-		}
-		//! DELETE
-		elseif (array_key_exists('delete', $requested_change) && $requested_change['delete']) {
-			$this->KontaktModel->delete($kontakt_id);
-		}
-		//! UPDATE
-		else {
-			$requested_change['updateamum'] = "NOW()";
-			$requested_change['updatevon'] = getAuthUID();
-
-			$update_kontakt_id = $this->KontaktModel->update($kontakt_id, $requested_change);
-
-			if (isError($update_kontakt_id)) {
-				show_error($this->p->t('profilUpdate', 'profilUpdate_updateKontakt_error'));
-			}
-			$update_kontakt_id = hasData($update_kontakt_id) ? getData($update_kontakt_id) : null;
-			if ($update_kontakt_id) {
-				$this->handleDupplicateZustellKontakte($requested_change['zustellung'], $update_kontakt_id);
-			}
-		}
-		return isset($insertID) ? $insertID : null;
-	}
-
-	private function handleAdresse($requested_change, $personID)
-	{
-
-		$this->AdressenTypModel->addSelect(["adressentyp_kurzbz"]);
-		$adr_kurzbz = $this->AdressenTypModel->loadWhere(["bezeichnung" => $requested_change['typ']]);
-		$adr_kurzbz = hasData($adr_kurzbz) ? getData($adr_kurzbz)[0]->adressentyp_kurzbz : null;
-		//? replace the address_typ with its correct kurzbz foreign key
-		$requested_change['typ'] = $adr_kurzbz;
-
-		$adresse_id = $requested_change["adresse_id"];
-		//? removes the adresse_id because we don't want to update the kontakt_id in the database
-		unset($requested_change["adresse_id"]);
-
-
-		//! ADD
-		if (array_key_exists('add', $requested_change) && $requested_change['add']) {
-
-			//? removes add flag
-			unset($requested_change['add']);
-			$requested_change['insertamum'] = "NOW()";
-			$requested_change['insertvon'] = getAuthUID();
-			$requested_change['person_id'] = $personID;
-			//TODO: zustelladresse, heimatadresse, rechnungsadresse und nation werden nicht beachtet
-			$insertID = $this->AdresseModel->insert($requested_change);
-			$insert_adresse_id = $insertID;
-			if (isError($insert_adresse_id)) {
-				show_error($this->p->t('profilUpdate', 'profilUpdate_insertAdresse_error'));
-			}
-			$insert_adresse_id = hasData($insert_adresse_id) ? getData($insert_adresse_id) : null;
-			if ($insert_adresse_id) {
-				$this->handleDupplicateZustellAdressen($requested_change['zustelladresse'], $insert_adresse_id);
-			}
-
-		}
-		//! DELETE
-		elseif (array_key_exists('delete', $requested_change) && $requested_change['delete']) {
-			$this->AdresseModel->delete($adresse_id);
-		}
-		//! UPDATE
-		else {
-			$requested_change['updateamum'] = "NOW()";
-			$requested_change['updatevon'] = getAuthUID();
-			$update_adresse_id = $this->AdresseModel->update($adresse_id, $requested_change);
-			if (isError($update_adresse_id)) {
-				show_error($this->p->t('profilUpdate', 'profilUpdate_updateAdresse_error'));
-			}
-			$update_adresse_id = hasData($update_adresse_id) ? getData($update_adresse_id) : null;
-			if ($update_adresse_id) {
-				$this->handleDupplicateZustellAdressen($requested_change['zustelladresse'], $update_adresse_id);
-			}
-		}
-		return isset($insertID) ? $insertID : null;
-	}
-
-
-	private function handleDupplicateZustellKontakte($zustellung, $kontakt_id)
-	{
-		if ($zustellung) {
-			$this->PersonModel->addSelect("public.tbl_kontakt.kontakt_id");
-			$this->PersonModel->addJoin("public.tbl_kontakt", "public.tbl_kontakt.person_id = public.tbl_person.person_id");
-			$zustellKontakteArray = $this->PersonModel->loadWhere(["public.tbl_person.person_id" => $this->pid, "zustellung" => TRUE]);
-			if (!isSuccess($zustellKontakteArray)) {
-				return error($this->p->t('profilUpdate', 'profilUpdate_loadingZustellkontakte_error'));
-			}
-			$zustellKontakteArray = hasData($zustellKontakteArray) ? getData($zustellKontakteArray) : null;
-
-			if ($zustellung && count($zustellKontakteArray) > 0) {
-				$zustellKontakteArray = array_filter($zustellKontakteArray, function ($kontakt) use ($kontakt_id) {
-					return $kontakt->kontakt_id != $kontakt_id;
-				});
-				foreach ($zustellKontakteArray as $kontakt) {
-					$this->KontaktModel->update($kontakt->kontakt_id, ["zustellung" => FALSE]);
-				}
-
-			}
-		}
-	}
-
-	private function handleDupplicateZustellAdressen($zustellung, $adresse_id)
-	{
-		if ($zustellung) {
-			$this->PersonModel->addSelect("public.tbl_adresse.adresse_id");
-			$this->PersonModel->addJoin("public.tbl_adresse", "public.tbl_adresse.person_id = public.tbl_person.person_id");
-			$zustellAdressenArray = $this->PersonModel->loadWhere(["public.tbl_person.person_id" => $this->pid, "zustelladresse" => TRUE]);
-			if (!isSuccess($zustellAdressenArray)) {
-				return error($this->p->t('profilUpdate', 'profilUpdate_loadingZustellAdressen_error'));
-			}
-			$zustellAdressenArray = hasData($zustellAdressenArray) ? getData($zustellAdressenArray) : null;
-
-			if ($zustellung && count($zustellAdressenArray) > 0) {
-
-				$zustellAdressenArray = array_filter($zustellAdressenArray, function ($adresse) use ($adresse_id) {
-
-					return $adresse->adresse_id != $adresse_id;
-				});
-				foreach ($zustellAdressenArray as $adresse) {
-					$this->AdresseModel->update($adresse->adresse_id, ["zustelladresse" => FALSE]);
-				}
-
-			}
-		}
-	}
-
-
-}
+}
@@ -14,7 +14,7 @@ class Pub extends Auth_Controller
 	{
 		parent::__construct(
 		    array(
-			'bild' => ['basis/cis:r']
+			'bild' => ['basis/cis:r', 'assistenz:r']
 		    )
 		);
 	}
@@ -0,0 +1,42 @@
+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+class LVVerwaltung extends Auth_Controller
+{
+	public function __construct()
+	{
+		$permissions = [];
+
+		$router = load_class('Router');
+		$permissions[$router->method] = ['admin:r', 'assistenz:r'];
+		parent::__construct($permissions);
+
+		$this->load->library('VariableLib', ['uid' => getAuthUID()]);
+	}
+
+	/**
+	 * @return void
+	 */
+	public function _remap()
+	{
+		$this->load->view('LVVerwaltung', [
+			'permissions' => [
+				'lehre/lehrveranstaltung' => $this->permissionlib->isBerechtigt('lehre/lehrveranstaltung'),
+				'lv-plan/gruppenentfernen' => $this->permissionlib->isBerechtigt('lv-plan/gruppenentfernen'),
+				'lv-plan/lektorentfernen' => $this->permissionlib->isBerechtigt('lv-plan/lektorentfernen'),
+			],
+			'variables' => [
+				'semester_aktuell' => $this->variablelib->getVar('semester_aktuell')
+			],
+			'configs' => [
+				'showVertragsdetails' => defined('FAS_LV_LEKTORINNENZUTEILUNG_VERTRAGSDETAILS_ANZEIGEN') && FAS_LV_LEKTORINNENZUTEILUNG_VERTRAGSDETAILS_ANZEIGEN,
+				'showGewichtung' => defined('CIS_GESAMTNOTE_GEWICHTUNG') && CIS_GESAMTNOTE_GEWICHTUNG,
+				'lehreinheitAnmerkungDefault' => defined('LEHREINHEIT_ANMERKUNG_DEFAULT') ? LEHREINHEIT_ANMERKUNG_DEFAULT : '',
+				'lehreinheitRaumtypDefault' => defined('DEFAULT_LEHREINHEIT_RAUMTYP') ? DEFAULT_LEHREINHEIT_RAUMTYP : '',
+				'lehreinheitRaumtypAlternativeDefault' => defined('DEFAULT_LEHREINHEIT_RAUMTYP_ALTERNATIV') ? DEFAULT_LEHREINHEIT_RAUMTYP_ALTERNATIV : ''
+			]
+		]);
+
+	}
+}
@@ -20,11 +20,18 @@ class NeueNachricht extends Auth_Controller
 	 */
 	public function _remap()
 	{
+		$typeid = $this->input->post('typeid');
+		$ids = ($this->input->post('ids') && strpos($this->input->post('ids'), ',')) 
+			? explode(',', $this->input->post('ids'))
+			: $this->input->post('ids');
+
 		//now working
 		$this->load->view('Nachrichten', [
 			'permissions' => [
 				'assistenz_schreibrechte' => $this->permissionlib->isBerechtigt('assistenz','suid'),
-			]
+			],
+			'ids' => $ids,
+			'typeid' => $typeid
 		]);
 	}
 }
@@ -32,6 +32,10 @@ class Studentenverwaltung extends Auth_Controller
 				'student/keine_studstatuspruefung' => $this->permissionlib->isBerechtigt('student/keine_studstatuspruefung'),
 				'lehre/reihungstestAufsicht' => $this->permissionlib->isBerechtigt('lehre/reihungstestAufsicht'),
 				'system/change_outputformat' => $this->permissionlib->getOE_isEntitledFor('system/change_outputformat'),
+				'student/editBakkZgv' => $this->permissionlib->getSTG_isEntitledFor('student/editBakkZgv') ?: array(),
+				'student/editMakkZgv' => $this->permissionlib->getSTG_isEntitledFor('student/editMakkZgv') ?: array(),
+				'student/editDokZgv' => $this->permissionlib->getSTG_isEntitledFor('student/editDokZgv') ?: array(),
+				'student/editBismelden' => $this->permissionlib->isBerechtigt('student/editBismelden')
 			],
 			'variables' => [
 				'semester_aktuell' => $this->variablelib->getVar('semester_aktuell')
@@ -442,6 +442,10 @@ class Documents extends FHCAPI_Controller
 			'betreuerart_kurzbz',
 			'studiensemester_kurzbz'
 		] as $key) {
+			if (in_array($xsl, array('Ausbildungsver', 'AusbVerEng')) && $key === 'uid')
+			{
+				continue;
+			}
 			$value = $this->input->post_get($key);
 			if ($value !== null)
 				$params .= '&' . $key . '=' . urlencode($value);
@@ -38,34 +38,9 @@ class Lehre extends FHCAPI_Controller
 		parent::__construct([
 			'lvStudentenMail' => self::PERM_LOGGED,
 			'LV' => self::PERM_LOGGED,
-			'Pruefungen' => self::PERM_LOGGED,
-			'getStudentProjektarbeiten' => self::PERM_LOGGED, // TODO: abgabetool berechtigung?
-			'getStudentProjektabgaben' => self::PERM_LOGGED,
-			'postStudentProjektarbeitZwischenabgabe' => self::PERM_LOGGED,
-			'postStudentProjektarbeitEndupload' => self::PERM_LOGGED,
-			'getMitarbeiterProjektarbeiten' => self::PERM_LOGGED,
-			'postProjektarbeitAbgabe' => self::PERM_LOGGED,
-			'deleteProjektarbeitAbgabe' => self::PERM_LOGGED,
-			'postSerientermin' => self::PERM_LOGGED,
-			'fetchDeadlines' => self::PERM_LOGGED // TODO: mitarbeiter recht prüfen
+			'Pruefungen' => self::PERM_LOGGED
 		]);
-
-		$this->load->library('PhrasesLib');
-
-		$this->loadPhrases(
-			array(
-				'global',
-				'ui',
-				'abgabetool'
-			)
-		);
-
-		$this->load->helper('hlp_sancho_helper');
 		
-		require_once(FHCPATH . 'include/studiengang.class.php');
-		require_once(FHCPATH . 'include/student.class.php');
-		require_once(FHCPATH . 'include/projektarbeit.class.php');
-		require_once(FHCPATH . 'include/projektbetreuer.class.php');
 	}

 	//------------------------------------------------------------------------------------------------------------------
@@ -125,557 +100,5 @@ class Lehre extends FHCAPI_Controller

 		$this->terminateWithSuccess($result);
 	}
-
-	/**
-	 * fetches all projektabgabetermine for a given projektarbeit_id used in cis4 student abgabetool
-	 */
-	public function getStudentProjektabgaben() {
-		$projektarbeit_id = $this->input->get("projektarbeit_id",TRUE);
-
-		// TODO: error messages
-		
-		if (!isset($projektarbeit_id) || isEmptyString($projektarbeit_id))
-			$this->terminateWithError($this->p->t('global', 'wrongParameters'), 'general');
-
-		$projektarbeit_obj = new projektarbeit();
-		if($projektarbeit_id==-1)
-			$this->terminateWithError($this->p->t('global', 'wrongParameters'), 'general');
-
-		if(!$projektarbeit_obj->load($projektarbeit_id))
-			$this->terminateWithError($this->p->t('global', 'wrongParameters'), 'general');
-
-		$paIsCurrent = $projektarbeit_obj->projektarbeitIsCurrent($projektarbeit_id);
-		
-		$this->load->model('education/Projektarbeit_model', 'ProjektarbeitModel');
-		$ret = $this->ProjektarbeitModel->getProjektarbeitAbgabetermine($projektarbeit_id);
-		
-		// TODO: fetch zweitbetreuer
-		
-		$this->terminateWithSuccess(array($ret, $paIsCurrent));
-	}
-
-	/**
-	 * fetches all projektarbeiten and betreuer for a given student_uid used in cis4 student abgabetool
-	 */
-	public function getStudentProjektarbeiten($uid)
-	{
-		$this->load->model('ressource/Mitarbeiter_model', 'MitarbeiterModel');
-		$this->load->model('education/Projektarbeit_model', 'ProjektarbeitModel');
-
-		if (!isset($uid) || isEmptyString($uid))
-			$this->terminateWithError($this->p->t('global', 'wrongParameters'), 'general');
-		
-		$isZugeteilterBetreuer = count($this->ProjektarbeitModel->checkZuordnung($uid, getAuthUID())->retval) > 0;
-		$this->addMeta('isZugeteilterBetreuer', $isZugeteilterBetreuer);
-		$isMitarbeiter = $this->MitarbeiterModel->isMitarbeiter(getAuthUID());
-		
-		if ($isMitarbeiter && $isZugeteilterBetreuer){
-			$projektarbeiten = $this->ProjektarbeitModel->getStudentProjektarbeitenWithBetreuer($uid);
-		} else {
-			$projektarbeiten = $this->ProjektarbeitModel->getStudentProjektarbeitenWithBetreuer(getAuthUID());
-		}
-
-		$this->terminateWithSuccess(array($projektarbeiten, DOMAIN, $uid));	
-	}
-	
-	
-
-	/**
-	 * projektarbeit - upload for zwischenabgaben in cis4 student abgabetool
-	 */
-	public function postStudentProjektarbeitZwischenabgabe() 
-	{
-
-		$projektarbeit_id = $_POST['projektarbeit_id'];
-		$paabgabe_id = $_POST['paabgabe_id'];
-		$student_uid = $_POST['student_uid'];
-		$bperson_id = $_POST['bperson_id'];
-		$paabgabetyp_kurzbz = $_POST['paabgabetyp_kurzbz'];
-
-		if (!isset($projektarbeit_id) || isEmptyString($projektarbeit_id)
-			|| !isset($paabgabe_id) || isEmptyString($paabgabe_id)
-			|| !isset($student_uid) || isEmptyString($student_uid)
-			|| !isset($paabgabetyp_kurzbz) || isEmptyString($paabgabetyp_kurzbz))
-			$this->terminateWithError($this->p->t('global', 'wrongParameters'), 'general');
-
-		if ((isset($_FILES) and isset($_FILES['file']) and ! $_FILES['file']['error'])) {
-			move_uploaded_file($_FILES['file']['tmp_name'], PAABGABE_PATH.$paabgabe_id.'_'.$student_uid.'.pdf');
-			
-			if(file_exists(PAABGABE_PATH.$paabgabe_id.'_'.$student_uid.'.pdf')) {
-
-				exec('chmod 640 "'.PAABGABE_PATH.$paabgabe_id.'_'.$student_uid.'.pdf'.'"');
-
-				$this->load->model('education/Paabgabe_model', 'PaabgabeModel');
-				$res = $this->PaabgabeModel->update($paabgabe_id, array(
-					'abgabedatum' => date('Y-m-d'),
-					'updatevon' => getAuthUID(),
-					'updateamum' => date('Y-m-d H:i:s')
-				));
-				
-				$this->sendUploadEmail($bperson_id, $projektarbeit_id, $paabgabetyp_kurzbz, $student_uid);
-				$this->terminateWithSuccess($res);
-			} else {
-				$this->terminateWithError('Error moving File');
-			}
-			
-		} else {
-			$this->terminateWithError('File missing');
-		}
-		
-	}
-
-	/**
-	 * upload für finale abgaben aka Endupload in cis4 student abgabetool
-	 */
-	public function postStudentProjektarbeitEndupload() 
-	{
-
-		$projektarbeit_id = $_POST['projektarbeit_id'];
-		$paabgabe_id = $_POST['paabgabe_id'];
-		$student_uid = $_POST['student_uid'];
-		$sprache = $_POST['sprache'];
-		$abstract = $_POST['abstract'];
-		$abstract_en = $_POST['abstract_en'];
-		$schlagwoerter = $_POST['schlagwoerter'];
-		$schlagwoerter_en = $_POST['schlagwoerter_en'];
-		$seitenanzahl = $_POST['seitenanzahl'];
-		$bperson_id = $_POST['bperson_id'];
-		$paabgabetyp_kurzbz = $_POST['paabgabetyp_kurzbz'];
-		
-		if (!isset($projektarbeit_id) || isEmptyString($projektarbeit_id)
-			|| !isset($paabgabe_id) || isEmptyString($paabgabe_id)
-			|| !isset($student_uid) || isEmptyString($student_uid)
-			|| !isset($paabgabetyp_kurzbz) || isEmptyString($paabgabetyp_kurzbz))
-			$this->terminateWithError($this->p->t('global', 'wrongParameters'), 'general');
-		
-		// TODO: maybe check for other params aswell?
-
-		if ((isset($_FILES) and isset($_FILES['file']) and ! $_FILES['file']['error'])) {
-			move_uploaded_file($_FILES['file']['tmp_name'], PAABGABE_PATH.$paabgabe_id.'_'.$student_uid.'.pdf');
-
-			if(file_exists(PAABGABE_PATH.$paabgabe_id.'_'.$student_uid.'.pdf')) {
-
-				// Loads Libraries
-				$this->load->library('SignatureLib');
-				
-				// Check if the document is signed
-				$signaturVorhanden = true;
-				$signList = SignatureLib::list(PAABGABE_PATH.$paabgabe_id.'_'.$student_uid.'.pdf');
-				if (is_array($signList) && count($signList) > 0)
-				{
-					// The document is signed
-					$uploadedDocumentSigned = 'The document is signed';
-				}
-				elseif ($signList === null)
-				{
-					$uploadedDocumentSigned = 'WARNING: signature server error';
-				}
-				else
-				{
-					$signaturVorhanden = false;
-					$uploadedDocumentSigned = 'No document signature found';
-				}
-				$this->addMeta('signaturInfo', $uploadedDocumentSigned);
-
-				if ($signaturVorhanden === false)
-				{
-					$this->signaturFehltEmail($student_uid);
-				}
-				
-				// TODO error handle get data has data the updates
-				// update projektarbeit cols
-				$this->load->model('education/Projektarbeit_model', 'ProjektarbeitModel');
-				$this->ProjektarbeitModel->updateProjektarbeit($projektarbeit_id,$sprache,$abstract,$abstract_en
-					,$schlagwoerter, $schlagwoerter_en, $seitenanzahl);
-
-				
-				// update paabgabe datum
-				$this->load->model('education/Paabgabe_model', 'PaabgabeModel');
-				$res = $this->PaabgabeModel->update($paabgabe_id, array(
-					'abgabedatum' => date('Y-m-d'),
-					'updatevon' => getAuthUID(),
-					'updateamum' => date('Y-m-d H:i:s')
-				));
-				
-				$this->sendUploadEmail($bperson_id, $projektarbeit_id, $paabgabetyp_kurzbz, $student_uid);
-
-				$this->terminateWithSuccess($res);
-			} else {
-				$this->terminateWithError('Error moving File');
-			}
-
-		} else {
-			$this->terminateWithError('File missing');
-		}
-		
-	}
-
-	private function signaturFehltEmail($student_uid) {
-		
-		
-		// Mail an Studiengang wenn keine Signatur gefunden wurde
-		$student = new student();
-		if(!$student->load($student_uid))
-			$this->terminateWithError($this->p->t('global','userNichtGefunden'), 'general');
-
-		$stg_obj = new studiengang();
-		if(!$stg_obj->load($student->studiengang_kz))
-			$this->terminateWithError($this->p->t('global','fehlerBeimLesenAusDatenbank'), 'general');
-
-		$subject = 'Abgabe ohne Signatur';
-		$tomail = $stg_obj->email;
-		$data = array(
-			'vorname' => $student->vorname,
-			'nachname' => $student->nachname,
-			'studiengang' => $stg_obj->bezeichnung
-		);
-
-		$mailres = sendSanchoMail(
-			'ParbeitsbeurteilungSiganturFehlt',
-			$data,
-			$tomail,
-			$subject,
-			'sancho_header_min_bw.jpg',
-			'sancho_footer_min_bw.jpg'
-		);
-	}
-	
-	private function sendUploadEmail($bperson_id, $projektarbeit_id, $paabgabetyp_kurzbz, $student_uid) {
-
-		$this->load->model('education/Projektarbeit_model', 'ProjektarbeitModel');
-		
-		$resBetr = $this->ProjektarbeitModel->getProjektbetreuerAnrede($bperson_id);
-
-		$projektarbeit_obj = new projektarbeit();
-
-		if(!$projektarbeit_obj->load($projektarbeit_id))
-			$this->terminateWithError('Ungueltiger Eintrag');
-
-		$num_rows_sem = $projektarbeit_obj->projektarbeitIsCurrent($projektarbeit_id);
-
-		if( null === $num_rows_sem || false === $num_rows_sem )
-		{
-			$this->terminateWithError($this->p->t('abgabetool','fehlerAktualitaetProjektarbeit'), 'general');
-		}
-		
-		foreach($resBetr->retval as $betreuerRow) {
-
-			// query student benutzer view for every betreuer row
-			$studentUser = $this->ProjektarbeitModel->getProjektarbeitBenutzer($student_uid)->retval[0];
-			
-			// TODO: hasdata, getData etc
-
-			// 1. Begutachter mail ohne Token
-			$mail_baselink = APP_ROOT."index.ci.php/extensions/FHC-Core-Projektarbeitsbeurteilung/ProjektarbeitsbeurteilungErstbegutachter";
-			$mail_fulllink = "$mail_baselink?projektarbeit_id=".$projektarbeit_id."&uid=".$studentUser->uid;
-			$projekttyp_kurzbz = $projektarbeit_obj->projekttyp_kurzbz;
-			$subject = $projektarbeit_obj->projekttyp_kurzbz == 'Diplom' ? 'Masterarbeitsbetreuung' : 'Bachelorarbeitsbetreuung';
-			$abgabetyp = $paabgabetyp_kurzbz == 'end' ? 'Endabgabe' : 'Zwischenabgabe';
-
-			$maildata = array();
-			$maildata['geehrt'] = "geehrte".($betreuerRow->anrede=="Herr"?"r":"");
-			$maildata['anrede'] = $betreuerRow->anrede;
-			$maildata['betreuer_voller_name'] = $betreuerRow->first;
-			$maildata['student_anrede'] = $studentUser->anrede;
-			$maildata['student_voller_name'] = trim($studentUser->titelpre." ".$studentUser->vorname." ".$studentUser->nachname." ".$studentUser->titelpost);
-			$maildata['abgabetyp'] = $abgabetyp;
-			$maildata['parbeituebersichtlink'] = "<p><a href='".APP_ROOT."cis/private/lehre/abgabe_lektor_frameset.html'>Zur Projektarbeitsübersicht</a></p>";
-			$maildata['bewertunglink'] = $num_rows_sem >= 1 && $paabgabetyp_kurzbz == 'end' ? "<p><a href='$mail_fulllink'>Zur Beurteilung der Arbeit</a></p>" : "";
-			$maildata['token'] = "";
-			
-			$mailres = sendSanchoMail(
-				'ParbeitsbeurteilungEndupload',
-				$maildata,
-				$betreuerRow->mitarbeiter_uid."@".DOMAIN,
-				$subject,
-				'sancho_header_min_bw.jpg',
-				'sancho_footer_min_bw.jpg',
-				get_uid()."@".DOMAIN);
-
-			if(!$mailres)
-			{
-				$this->terminateWithError($this->p->t('abgabetool', 'fehlerMailBegutachter'), 'general');
-			}
-
-			// 2. Begutachter mail, wenn Endabgabe, mit Token wenn extern
-			if ($paabgabetyp_kurzbz == 'end')
-			{
-				// Zweitbegutachter holen
-				$zweitbegutachter = new projektbetreuer();
-				$zweitbegutachterRes = $zweitbegutachter->getZweitbegutachterWithToken($bperson_id, $projektarbeit_id, $studentUser->uid);
-
-				if ($zweitbegutachterRes)
-				{
-					$zweitbegutachterResults = $zweitbegutachter->result;
-
-					foreach ($zweitbegutachterResults as $begutachter)
-					{
-						// token generieren, wenn noch nicht vorhanden und notwendig (wird in methode überprüft)
-						$tokenGenRes = $zweitbegutachter->generateZweitbegutachterToken($begutachter->person_id, $projektarbeit_id);
-
-						if (!$tokenGenRes)
-						{
-							$this->terminateWithError($this->p->t('abgabetool', 'fehlerMailZweitBegutachter'), 'general');
-						}
-						
-						// Zweitbegutachter (evtl. mit Token) holen
-						$zweitbegutachterMitToken = new projektbetreuer();
-						$begutachterMitTokenRes = $zweitbegutachterMitToken->getZweitbegutachterWithToken($bperson_id, $projektarbeit_id, $studentUser->uid, $begutachter->person_id);
-
-						if (!$begutachterMitTokenRes)
-						{
-							$this->terminateWithError($this->p->t('abgabetool', 'fehlerMailZweitBegutachter'), 'general');
-						}
-						
-						// Email an Zweitbegutachter senden
-						if (isset($zweitbegutachterMitToken->result[0]))
-						{
-							$begutachterMitToken = $zweitbegutachterMitToken->result[0];
-
-							$path = $begutachterMitToken->betreuerart_kurzbz == 'Zweitbegutachter' ? 'ProjektarbeitsbeurteilungZweitbegutachter' : 'ProjektarbeitsbeurteilungErstbegutachter';
-							$mail_baselink = APP_ROOT."index.ci.php/extensions/FHC-Core-Projektarbeitsbeurteilung/$path";
-							$mail_fulllink = "$mail_baselink?projektarbeit_id=".$projektarbeit_id."&uid=".$studentUser->uid;
-							$intern = isset($begutachterMitToken->uid);
-							$mail_link = $intern ? $mail_fulllink : $mail_baselink;
-
-							$zweitbetmaildata = array();
-							$zweitbetmaildata['geehrt'] = "geehrte" . ($begutachterMitToken->anrede == "Herr" ? "r" : "");
-							$zweitbetmaildata['anrede'] = $begutachterMitToken->anrede;
-							$zweitbetmaildata['betreuer_voller_name'] = $begutachterMitToken->voller_name;
-							$zweitbetmaildata['student_anrede'] = $maildata['student_anrede'];
-							$zweitbetmaildata['student_voller_name'] = $maildata['student_voller_name'];
-							$zweitbetmaildata['abgabetyp'] = $abgabetyp;
-							$zweitbetmaildata['parbeituebersichtlink'] = $intern ? $maildata['parbeituebersichtlink'] : "";
-							$zweitbetmaildata['bewertunglink'] = $num_rows_sem >= 1 ? "<p><a href='$mail_link'>Zur Beurteilung der Arbeit</a></p>" : "";
-							$zweitbetmaildata['token'] = $num_rows_sem >= 1 && isset($begutachterMitToken->zugangstoken) && !$intern ? "<p>Zugangstoken: " . $begutachterMitToken->zugangstoken . "</p>" : "";
-							
-							$mailres = sendSanchoMail(
-								'ParbeitsbeurteilungEndupload',
-								$zweitbetmaildata,
-								$begutachterMitToken->email,
-								$subject,
-								'sancho_header_min_bw.jpg',
-								'sancho_footer_min_bw.jpg',
-								get_uid()."@".DOMAIN
-							);
-
-							if (!$mailres)
-							{
-								$this->terminateWithError($this->p->t('abgabetool', 'fehlerMailBegutachter'), 'general');
-							}
-						}
-					}
-				}
-			}
-		}
-	}
-
-	public function getMitarbeiterProjektarbeiten() {
-		$this->load->model('education/Projektarbeit_model', 'ProjektarbeitModel');
-
-		$boolParamStr = $this->input->get('showall');
-		$trueStrings = ['true', '1'];
-		$falseStrings = ['false', '0'];
-
-		// Handle missing or invalid parameter
-		if ($boolParamStr === null) {
-			$this->terminateWithError($this->p->t('global', 'wrongParameters'), 'general');
-		}
-		$boolParamStrLower = strtolower($boolParamStr);
-
-		if (in_array($boolParamStrLower, $trueStrings, true)) {
-			$showAllBool = true;
-		} elseif (in_array($boolParamStrLower, $falseStrings, true)) {
-			$showAllBool = false;
-		} else {
-//			$this->terminateWithError($this->p->t('global', 'wrongParameters'), 'general');
-		}
-		
-		$projektarbeiten = $this->ProjektarbeitModel->getMitarbeiterProjektarbeiten(getAuthUID(), $showAllBool);
-		
-		$this->terminateWithSuccess(array($projektarbeiten, DOMAIN));
-	}
-	
-	public function postProjektarbeitAbgabe() {
-		$projektarbeit_id = $_POST['projektarbeit_id'];
-		$paabgabe_id = $_POST['paabgabe_id'];
-		$paabgabetyp_kurzbz = $_POST['paabgabetyp_kurzbz'];
-		$datum = $_POST['datum'];
-		$fixtermin = $_POST['fixtermin'];
-		$kurzbz = $_POST['kurzbz'];
-
-		if (!isset($projektarbeit_id) || isEmptyString($projektarbeit_id)
-			|| !isset($paabgabe_id) || isEmptyString($paabgabe_id)
-			|| !isset($datum) || isEmptyString($datum)
-			|| !isset($datum) || isEmptyString($datum)
-			|| !isset($paabgabetyp_kurzbz) || isEmptyString($paabgabetyp_kurzbz))
-			$this->terminateWithError($this->p->t('global', 'wrongParameters'), 'general');
-
-		$this->load->model('education/Paabgabe_model', 'PaabgabeModel');
-		
-		if($paabgabe_id == -1) {
-			$result = $this->PaabgabeModel->insert(
-				array(
-					'projektarbeit_id' => $projektarbeit_id,
-					'paabgabetyp_kurzbz' => $paabgabetyp_kurzbz,
-					'fixtermin' => $fixtermin,
-					'datum' => $datum,
-					'kurzbz' => $kurzbz,
-					'insertvon' => getAuthUID(),
-					'insertamum' => date('Y-m-d H:i:s')
-				)
-			);
-			
-			$this->terminateWithSuccess($result);
-		} else {
-			$result = $this->PaabgabeModel->update(
-				$paabgabe_id,
-				array(
-					'paabgabetyp_kurzbz' => $paabgabetyp_kurzbz,
-					'datum' => $datum,
-					'kurzbz' => $kurzbz,
-					'updatevon' => getAuthUID(),
-					'updateamum' => date('Y-m-d H:i:s')
-				)
-			);
-
-			$this->terminateWithSuccess($result);
-		}
-	}
-	
-	public function deleteProjektarbeitAbgabe() {
-		$paabgabe_id = $_POST['paabgabe_id'];
-		
-		if (!isset($paabgabe_id) || isEmptyString($paabgabe_id))
-			$this->terminateWithError($this->p->t('global', 'wrongParameters'), 'general');
-
-		$this->load->model('education/Paabgabe_model', 'PaabgabeModel');
-
-		$result = $this->PaabgabeModel->load($paabgabe_id);
-		$result = $this->getDataOrTerminateWithError($result);
-		
-		if(count($result) == 0) 
-			$this->terminateWithError($this->p->t('global', 'wrongParameters'), 'general');
-
-		// TODO: berechtigung?
-		if($result[0]->insertvon === getAuthUID()) {
-			$result = $this->PaabgabeModel->delete($paabgabe_id);
-			$result = $this->getDataOrTerminateWithError($result);
-			$this->terminateWithSuccess($result);
-		}
-
-		$this->terminateWithError($this->p->t('global', 'wrongParameters'), 'general');
-	}
-
-	/**
-	 * endpoint for adding the same paabgabe for multiple projektarbeiten
-	 * can be slow for large n since it queries twice per projektarbeit_id
-	 */
-	public function postSerientermin() {
-		$projektarbeit_ids = $_POST['projektarbeit_ids'];
-		$datum = $_POST['datum'];
-		$paabgabetyp_kurzbz = $_POST['paabgabetyp_kurzbz'];
-		$bezeichnung = $_POST['bezeichnung'];
-		$kurzbz = $_POST['kurzbz'];
-
-		if (!isset($projektarbeit_ids) || !is_array($projektarbeit_ids) || empty($projektarbeit_ids)
-			|| !isset($datum) || isEmptyString($datum)
-			|| !isset($kurzbz) || isEmptyString($kurzbz)
-			|| !isset($bezeichnung) || isEmptyString($bezeichnung)
-			|| !isset($paabgabetyp_kurzbz) || isEmptyString($paabgabetyp_kurzbz))
-			$this->terminateWithError($this->p->t('global', 'wrongParameters'), 'general');
-		
-		// old script checks if there already are tbl_paabgabe entries with exact date, type & kurzbz
-		// for each termin - good to check that in principle but should not matter in this place. if necessary
-		// duplicate abgabetermine can be easily deleted manually, also via cronjob@night.
-		
-		// since this entry includes the kurzbz string match, it should have only ever mattered when there were
-		// multiple users entering the exact same set of (date, type, kurzbz) - which is a much more narrow case than the
-		// general "saveMultiple" function should handle
-		
-		// old script afterwards again queries if user is not the zweitbetreuer of any id - this is blocked in the ui
-		// and should never unintentionally happen
-		
-		// TODO: check berechtigung &/|| zuordnung?
-		
-		$this->load->model('education/Paabgabe_model', 'PaabgabeModel');
-		$this->load->model('education/Projektarbeit_model', 'ProjektarbeitModel');
-		
-		$res = [];
-		foreach ($projektarbeit_ids as $projektarbeit_id) {
-			
-			$result = $this->PaabgabeModel->insert(
-				array(
-					'projektarbeit_id' => $projektarbeit_id,
-					'paabgabetyp_kurzbz' => $paabgabetyp_kurzbz,
-					'fixtermin' => false,
-					'datum' => $datum,
-					'kurzbz' => $kurzbz,
-					'insertvon' => getAuthUID(),
-					'insertamum' => date('Y-m-d H:i:s')
-				)
-			);
-			
-			$data = $this->getDataOrTerminateWithError($result);
-			
-//			$res[] = $data;
-
-			// send mail to student
-			$result = $this->ProjektarbeitModel->getStudentInfoForProjektarbeitId($projektarbeit_id);
-			$data = $this->getDataOrTerminateWithError($result);
-
-//			$this->addMeta('emaildata'.$projektarbeit_id, $data);
-			
-			$datetime = new DateTime($datum);
-			$dateEmailFormatted = $datetime->format('d.m.Y');
-			
-			$anredeFillString = $data[0]->anrede=="Herr"?"r":"";
-			
-			$fullFormattedNameString = trim($data[0]->titelpre." ".$data[0]->vorname." ".$data[0]->nachname." ".$data[0]->titelpost);
-			$res[] = $fullFormattedNameString;
-			
-			// Prepare mail content
-			$body_fields = array(
-				'anrede' => $data[0]->anrede,
-				'anredeFillString' => $anredeFillString,
-				'datum' => $dateEmailFormatted,
-				'bezeichnung' => $bezeichnung,
-				'fullFormattedNameString' => $fullFormattedNameString,
-				'kurzbz' => $kurzbz
-			);
-
-			$email = $data[0]->uid."@".DOMAIN;
-			
-			sendSanchoMail(
-				'neuerAbgabetermin',
-				$body_fields,
-				$email,
-				$this->p->t('abgabetool', 'neuerTerminBachelorMasterbetreuung')
-			);
-		}
-		
-		$this->terminateWithSuccess($res);
-		
-	}
-	
-	public function fetchDeadlines() {
-		$person_id = $_POST['person_id'];
-		
-		if (!isset($person_id) || isEmptyString($person_id))
-			$person_id = getAuthPersonId();
-		
-		
-		if($person_id !== getAuthPersonId()) {
-			$this->load->library('PermissionLib');
-			$isAdmin = $this->permissionlib->isBerechtigt('admin');
-			if(!$isAdmin) $this->terminateWithError($this->p->t('ui', 'keineBerechtigung'), 'general');
-		}
-
-		$this->load->model('education/Paabgabe_model', 'PaabgabeModel');
-		$result = $this->PaabgabeModel->getDeadlines($person_id);
-		$data = $this->getDataOrTerminateWithError($result);
-
-		$this->terminateWithSuccess($data);
-	}
 }

@@ -0,0 +1,277 @@
+<?php
+/**
+ * Copyright (C) 2025 fhcomplete.org
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+if (!defined('BASEPATH'))
+	exit('No direct script access allowed');
+
+class Lehrveranstaltung extends FHCAPI_Controller
+{
+	private $_ci;
+	private $_uid;
+
+	public function __construct()
+	{
+		parent::__construct([
+			'getByEmp' => ['admin:r', 'assistenz:r'],
+			'getByStg' => ['admin:r', 'assistenz:r'],
+			'loadByLV' => ['admin:r', 'assistenz:r'],
+		]);
+
+		$this->_ci = &get_instance();
+		$this->_setAuthUID();
+
+		$this->_ci->load->model('education/Lehreinheit_model', 'LehreinheitModel');
+		$this->_ci->load->model('education/Lehrveranstaltung_model', 'LehrveranstaltungModel');
+		$this->_ci->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+
+		$this->_ci->load->library('VariableLib', ['uid' => $this->_uid]);
+
+		$this->loadPhrases(
+			array(
+				'ui'
+			)
+		);
+	}
+
+	public function getByEmp($studiensemester_kurzbz = null, $mitarbeiter_uid = null, $stg_kz = null)
+	{
+
+		if (is_null($mitarbeiter_uid))
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$studiensemester_kurzbz = $this->getStudiensemesterKurzbz($studiensemester_kurzbz);
+
+		$lehrveranstaltungen = $this->_ci->LehreinheitModel->getLvsByEmployee($mitarbeiter_uid, $studiensemester_kurzbz, $stg_kz);
+		$lehrveranstaltungen_data = $this->getDataOrTerminateWithError($lehrveranstaltungen);
+
+		$tree = [];
+
+		foreach ($lehrveranstaltungen_data as $lehrveranstaltung)
+		{
+			$lehreinheiten = $this->_ci->LehreinheitModel->getByLvidStudiensemester($lehrveranstaltung->lehrveranstaltung_id, $studiensemester_kurzbz, $mitarbeiter_uid);
+			$lehreinheiten_data = $this->getDataOrTerminateWithError($lehreinheiten);
+
+			if (!isset($lehrveranstaltung->_children))
+			{
+				$lehrveranstaltung->_children = $lehreinheiten_data;
+			}
+			$tree[] = $lehrveranstaltung;
+		}
+
+		$this->terminateWithSuccess($tree);
+	}
+	public function getByStg($studiensemester_kurzbz = null, $studiengang_kz = null, $semester = null)
+	{
+		if (is_null($studiengang_kz) || !preg_match("/^-?[1-9][0-9]*$/", (string)$studiengang_kz))
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$verband = null;
+		if (!is_null($semester) && !is_numeric($semester))
+		{
+			$verband = $semester;
+			$semester = null;
+		}
+
+		$this->_ci->load->model('organisation/Studienplan_model', 'StudienplanModel');
+
+		$studiensemester_kurzbz = $this->getStudiensemesterKurzbz($studiensemester_kurzbz);
+		$studienplan_data = $this->_ci->StudienplanModel->getStudienplaeneBySemester($studiengang_kz, $studiensemester_kurzbz, $semester, $verband);
+
+		$studienplan_ids = array();
+		$only_ids = array();
+		$placeholders = array();
+
+		if (hasData($studienplan_data))
+		{
+			foreach (getData($studienplan_data) as $studienplan) {
+				$placeholders[] = "(?, ?)";
+				$studienplan_ids[] = $studienplan->studienplan_id;
+				$studienplan_ids[] = $studienplan->semester;
+				$only_ids[] = $studienplan->studienplan_id;
+			}
+		}
+
+		$lehrveranstaltungen_data = $this->_ci->LehrveranstaltungModel->getLvsByStudiengang($studienplan_ids, $placeholders, $only_ids, $studiengang_kz, $studiensemester_kurzbz, $semester, $verband);
+		$lehrveranstaltungen_data = hasData($lehrveranstaltungen_data) ? getData($lehrveranstaltungen_data) : array();
+
+		$tree = [];
+		foreach ($lehrveranstaltungen_data as $row)
+		{
+			$rowData = $row;
+
+			$lehreinheiten_data = $this->_ci->LehreinheitModel->getByLvidStudiensemester($row->lehrveranstaltung_id, $studiensemester_kurzbz);
+
+			if (hasData($lehreinheiten_data))
+			{
+				$lehreinheiten = getData($lehreinheiten_data);
+
+				if (!isset($row->_children))
+				{
+					$row->_children = $lehreinheiten;
+				}
+				else
+				{
+					if (!is_array($row->_children))
+					{
+						$row->_children = [$row->_children];
+					}
+					$row->_children = array_merge($row->_children, $lehreinheiten);
+				}
+			}
+
+			if (!isEmptyString($row->studienplan_lehrveranstaltung_id_parent))
+			{
+				$child = $this->_ci->StudienplanModel->loadStudienplanLehrveranstaltung($row->studienplan_lehrveranstaltung_id_parent);
+
+				if (hasData($child))
+				{
+					$child = getData($child)[0];
+					$searchId = $child->lehrveranstaltung_id;
+
+					foreach ($lehrveranstaltungen_data as &$searchParent)
+					{
+						if ($searchParent->lehrveranstaltung_id === $searchId)
+						{
+							if (!isset($searchParent->_children))
+							{
+								$searchParent->_children = [];
+							}
+
+							if (is_array($searchParent->_children))
+							{
+								$searchParent->_children[] = $row;
+							}
+							else
+							{
+								$searchParent->_children = [$searchParent->_children, $row];
+							}
+							break;
+						}
+					}
+
+				}
+			}
+			else
+			{
+				$tree[] = $rowData;
+			}
+		}
+
+		$counter = 0;
+		$this->assignUniqueIndex($tree, $counter);
+		$this->terminateWithSuccess($tree);
+	}
+
+
+	public function loadByLV($lehrveranstaltung_id = null)
+	{
+		if (is_null($lehrveranstaltung_id) || !ctype_digit((string)$lehrveranstaltung_id))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$this->_ci->LehrveranstaltungModel->addSelect('lehrveranstaltung_id, lehrform_kurzbz, lehre, bezeichnung as lvbezeichnung, sprache');
+		$lehrveranstaltung_result = $this->_ci->LehrveranstaltungModel->loadWhere(array('lehrveranstaltung_id' => $lehrveranstaltung_id));
+		$lehrveranstaltung_result = $this->getDataOrTerminateWithError($lehrveranstaltung_result);
+		$lehrveranstaltung = $lehrveranstaltung_result[0];
+
+		$this->_ci->LehreinheitModel->addSelect('lehrveranstaltung_id_kompatibel');
+		$this->_ci->LehreinheitModel->addJoin('lehre.tbl_lehrveranstaltung_kompatibel', 'lehrveranstaltung_id');
+		$lehrfaecher = $this->_ci->LehreinheitModel->loadWhere(array('lehrveranstaltung_id' => $lehrveranstaltung->lehrveranstaltung_id));
+
+		$lehrfaecher_array = [];
+		if (hasData($lehrfaecher))
+			$lehrfaecher_array = array_merge($lehrfaecher_array, array_column(getData($lehrfaecher), 'lehrveranstaltung_id_kompatibel'));
+
+		$lehrfaecher_array[] = $lehrveranstaltung->lehrveranstaltung_id;
+
+		$this->_ci->LehrveranstaltungModel->addDistinct('lehrfach_id');
+		$this->_ci->LehrveranstaltungModel->addSelect("tbl_lehrveranstaltung.lehrveranstaltung_id, CONCAT(tbl_lehrveranstaltung.bezeichnung || '(' || tbl_lehrveranstaltung.oe_kurzbz || ')') as lehrfach");
+		$this->_ci->LehrveranstaltungModel->db->where_in('tbl_lehrveranstaltung.lehrveranstaltung_id', $lehrfaecher_array);
+		$lehrfaecher_result = $this->_ci->LehrveranstaltungModel->load();
+
+		$lehrfaecher_array = hasData($lehrfaecher_result) ? getData($lehrfaecher_result) : array();
+
+		$lehrveranstaltung->lehrfaecher = $lehrfaecher_array;
+		$this->terminateWithSuccess($lehrveranstaltung);
+	}
+
+	/*
+	 * (david) ggf. im naechsten release
+	 * public function loadByOrganization($oe_kurzbz)
+	{
+		$studiensemester_kurzbz = $this->variablelib->getVar('semester_aktuell');
+
+		$lehrveranstaltungen = $this->LehrveranstaltungModel->getLvsByOrganization($oe_kurzbz);
+		$lehrveranstaltungen_data = $this->getDataOrTerminateWithError($lehrveranstaltungen);
+		$tree = [];
+
+		foreach ($lehrveranstaltungen_data as $lehrveranstaltung)
+		{
+			$lehreinheiten = $this->LehreinheitModel->getByLvidStudiensemester($lehrveranstaltung->lehrveranstaltung_id, $studiensemester_kurzbz);
+			$lehreinheiten_data = $this->getDataOrTerminateWithError($lehreinheiten);
+
+			if (!isset($lehrveranstaltung->_children))
+			{
+
+				$lehrveranstaltung->_children = $lehreinheiten_data;
+			}
+			$tree[] = $lehrveranstaltung;
+		}
+		$this->terminateWithSuccess($tree);
+	}*/
+
+	/*public function loadByFachbereich($fachbereich, $mitarbeiter_uid = null)
+	{
+		$studiensemester_kurzbz = $this->variablelib->getVar('semester_aktuell');
+
+		$this->LehreinheitModel->getLvsByFachbereich($fachbereich, $studiensemester_kurzbz, $mitarbeiter_uid);
+	}*/
+	private function _setAuthUID()
+	{
+		$this->_uid = getAuthUID();
+
+		if (!$this->_uid)
+			show_error('User authentification failed');
+	}
+
+	private function assignUniqueIndex(&$nodes, &$counter)
+	{
+		foreach ($nodes as &$node)
+		{
+			$node->uniqueindex = $counter++;
+			if (!empty($node->_children) && is_array($node->_children))
+			{
+				$this->assignUniqueIndex($node->_children, $counter);
+			}
+		}
+	}
+
+	private function getStudiensemesterKurzbz($studiensemester_kurzbz = null)
+	{
+		if (!is_null($studiensemester_kurzbz))
+		{
+			$studiensemester_result = $this->_ci->StudiensemesterModel->load($studiensemester_kurzbz);
+
+			if (isError($studiensemester_result) || !hasData($studiensemester_result))
+				$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+			return getData($studiensemester_result)[0]->studiensemester_kurzbz;
+		}
+
+		$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+	}
+}
@@ -176,6 +176,7 @@ class LvPlan extends FHCAPI_Controller
 	{
 		$this->load->model('ressource/Stunde_model', 'StundeModel');

+		$this->StundeModel->addOrder('stunde', 'ASC');
 		$stunden = $this->StundeModel->load();

        $stunden = $this->getDataOrTerminateWithError($stunden);
@@ -573,8 +573,7 @@ class ProfilUpdate extends FHCAPI_Controller
 	{
 		// early return if no status has been passed as argument
 		if (!isset($status)) {
-			echo json_encode($this->ProfilUpdateModel->getProfilUpdateWithPermission());
-			return;
+			$this->terminateWithSuccess($this->ProfilUpdateModel->getProfilUpdateWithPermission());
 		}

 		// get the sprache of the user
@@ -587,7 +586,7 @@ class ProfilUpdate extends FHCAPI_Controller
 			$status = hasData($status) ? getData($status)[0]->status_kurzbz : null;
 			$res = $this->ProfilUpdateModel->getProfilUpdateWithPermission(isset($status) ? ['status' => $status] : null);

-			echo json_encode($res);
+			$this->terminateWithSuccess($res);
 		}
 	}

@@ -638,9 +637,10 @@ class ProfilUpdate extends FHCAPI_Controller
 				//? Send email to the Studiengangsassistentinnen
 				$this->StudentModel->addSelect(["public.tbl_studiengang.email"]);
 				$this->StudentModel->addJoin("public.tbl_benutzer", "public.tbl_benutzer.uid = public.tbl_student.student_uid");
-				$this->StudentModel->addJoin("public.tbl_prestudent", "public.tbl_benutzer.person_id = public.tbl_prestudent.person_id");
+				$this->StudentModel->addJoin("public.tbl_prestudent", "public.tbl_benutzer.person_id = public.tbl_prestudent.person_id and public.tbl_student.studiengang_kz = public.tbl_prestudent.studiengang_kz");
 				$this->StudentModel->addJoin("public.tbl_prestudentstatus", "public.tbl_prestudentstatus.prestudent_id = public.tbl_prestudent.prestudent_id");
 				$this->StudentModel->addJoin("public.tbl_studiengang", "public.tbl_studiengang.studiengang_kz = public.tbl_prestudent.studiengang_kz");
+				$this->StudentModel->addGroupBy(["public.tbl_studiengang.email"]);
 				//* check if the benutzer itself is active
 				//* check if the student status is Student or Diplomand (active students)
 				$this->StudentModel->db->where_in("public.tbl_prestudentstatus.status_kurzbz", ['Student', 'Diplomand']);
@@ -657,8 +657,10 @@ class ProfilUpdate extends FHCAPI_Controller
 		}
 		$mail_res = [];
 		//? sending email
-		foreach ($emails as $email) {
-			array_push($mail_res, sendSanchoMail("profil_update", ['uid' => $uid, 'topic' => $topic, 'href' => APP_ROOT . 'Cis/ProfilUpdate/id/' . $profil_update_id], $email, ("Profil Änderung von " . $uid)));
+		foreach ($emails as $email)
+		{
+			$href = $this->config->item('cis_vilesci_base_url') . $this->config->item('cis_vilesci_index_page') . '/Cis/ProfilUpdate/id/' . $profil_update_id;
+			array_push($mail_res, sendSanchoMail("profil_update", ['uid' => $uid, 'topic' => $topic, 'href' => $href], $email, ("Profil Änderung von " . $uid)));
 		}
 		foreach ($mail_res as $m_res) {
 			if (!$m_res) {
@@ -681,21 +683,21 @@ class ProfilUpdate extends FHCAPI_Controller

 		function languageQuery($language)
 		{
-			return "select index from public.tbl_sprache where sprache = '" + $language + "'";
+			return "select index from public.tbl_sprache where sprache = '" . $language . "'";
 		}

 		$this->ProfilUpdateStatusModel->addSelect(["bezeichnung_mehrsprachig[(" . languageQuery('German') . ")] as status_de", "bezeichnung_mehrsprachig[(" . languageQuery('English') . ")] as status_en"]);
 		
 		$status_translation = $this->ProfilUpdateStatusModel->loadWhere(["status_kurzbz" => $status]);
-		
 		if (isError($status_translation)) {
 			$this->terminateWithError($this->p->t('profilUpdate', 'ProfilUpdateStatusTranslationError'));
 		}

 		$status_translation = hasData($status_translation) ? getData($status_translation)[0] : null;
-
-		if (isset($status_translation)) {
-			$mail_res = sendSanchoMail("profil_update_response", ['topic' => $topic, 'status_de' => $status_translation->status_de, 'status_en' => $status_translation->status_en, 'href' => APP_ROOT . 'Cis/Profil'], $email, ("Profil Änderung " . $this->p->t('profilUpdate', 'pending')));
+		if (isset($status_translation))
+		{
+			$href = $this->config->item('cis_base_url') . $this->config->item('cis_index_page') . '/Cis/Profil';
+			$mail_res = sendSanchoMail("profil_update_response", ['topic' => $topic, 'status_de' => $status_translation->status_de, 'status_en' => $status_translation->status_en, 'href' => $href], $email, ("Profil Änderung " . $status_translation->status_de . ' / Profile Update ' . $status_translation->status_en));
 			if (!$mail_res) {
 				$this->addError($this->p->t('profilUpdate', 'profilUpdate_email_error'));
 			}
@@ -704,7 +706,13 @@ class ProfilUpdate extends FHCAPI_Controller

 	private function setStatusOnUpdateRequest($id, $status, $status_message)
 	{
-		return $this->ProfilUpdateModel->update([$id], ["status" => $status, "status_timestamp" => "NOW()", "status_message" => $status_message]);
+		return $this->ProfilUpdateModel->update([$id], [
+			"status" => $status,
+			"status_timestamp" => "NOW()",
+			"status_message" => $status_message,
+			"updateamum" => "NOW()",
+			"updatevon" => getAuthUID()
+		]);
 	}
 	
 	private function updateRequestedChange($id, $requested_change)
@@ -714,13 +722,12 @@ class ProfilUpdate extends FHCAPI_Controller
 	
 	private function deleteOldVersionFile($dms_id)
 	{
+		if (!isset($dms_id)) {
+			return true;
+		}
+
 		// starting the transaction
 		$this->db->trans_start();
-		
-		
-		if (!isset($dms_id)) {
-			return;
-		}

 		//? delete the file from the profilUpdate first
 		$profilUpdateFileDelete = $this->ProfilUpdateModel->removeFileFromProfilUpdate($dms_id);
@@ -775,13 +782,8 @@ class ProfilUpdate extends FHCAPI_Controller

 		$res = $this->StudentModel->execReadOnlyQuery($query, [$student_uid]);
 		$res = $this->getDataOrTerminateWithError($res, $this->p->t('profilUpdate', 'profilUpdate_loadingOE_error'));	
-		$res = array_map(
-			function ($item) {
-				return $item->oe_kurzbz;
-			},
-			$res
-		);
-		return $res;
+		$oe = ($res[0])->oe_kurzbz;
+		return $oe;
 	}

 	private function handleAdresse($requested_change, $personID)
@@ -811,7 +813,7 @@ class ProfilUpdate extends FHCAPI_Controller
 			$insert_adresse_id = $insertID;
 			$insert_adresse_id = $this->getDataOrTerminateWithError($insert_adresse_id, $this->p->t('profilUpdate', 'profilUpdate_insertAdresse_error'));
 			if ($insert_adresse_id) {
-				$this->handleDupplicateZustellAdressen($requested_change['zustelladresse'], $insert_adresse_id);
+				$this->handleDupplicateZustellAdressen($requested_change['zustelladresse'], $insert_adresse_id, $personID);
 			}
 		}
 		//! DELETE
@@ -823,12 +825,33 @@ class ProfilUpdate extends FHCAPI_Controller
 		}
 		//! UPDATE
 		else {
-			$requested_change['updateamum'] = "NOW()";
-			$requested_change['updatevon'] = getAuthUID();
-			$update_adresse_id = $this->AdresseModel->update($adresse_id, $requested_change);
-			$update_adresse_id = $this->getDataOrTerminateWithError($update_adresse_id, $this->p->t('profilUpdate', 'profilUpdate_updateAdresse_error'));
-			$this->handleDupplicateZustellAdressen($requested_change['zustelladresse'], $update_adresse_id);
+			$curadresse_res = $this->AdresseModel->load($adresse_id);
+			$curadresse = ($this->getDataOrTerminateWithError($curadresse_res))[0];

+			if($curadresse->heimatadresse)
+			{
+				$tmpadresse = array_merge((array) $curadresse, $requested_change);
+				unset($tmpadresse["adresse_id"]);
+				$tmpadresse['insertamum'] = "NOW()";
+				$tmpadresse['insertvon'] = getAuthUID();
+				$tmpadresse['person_id'] = $personID;
+				unset($tmpadresse["heimatadresse"]);
+				unset($tmpadresse["updateamum"]);
+				unset($tmpadresse["updatevon"]);
+
+				$tmpadresse_res = $this->AdresseModel->insert($tmpadresse);
+				$tmpadresse_id = $this->getDataOrTerminateWithError($tmpadresse_res, $this->p->t('profilUpdate', 'profilUpdate_insertAdresse_error'));
+				$this->handleDupplicateZustellAdressen($requested_change['zustelladresse'], $tmpadresse_id, $personID);
+			}
+			else
+			{
+				$requested_change['updateamum'] = "NOW()";
+				$requested_change['updatevon'] = getAuthUID();
+
+				$update_adresse_id = $this->AdresseModel->update($adresse_id, $requested_change);
+				$update_adresse_id = $this->getDataOrTerminateWithError($update_adresse_id, $this->p->t('profilUpdate', 'profilUpdate_updateAdresse_error'));
+				$this->handleDupplicateZustellAdressen($requested_change['zustelladresse'], $update_adresse_id, $personID);
+			}
 		}
 		return $insertID ?? null;
 	}
@@ -850,7 +873,7 @@ class ProfilUpdate extends FHCAPI_Controller
 			$insert_kontakt_id = $insertID;
 			$insert_kontakt_id = $this->getDataOrTerminateWithError($insert_kontakt_id, $this->p->t('profilUpdate', 'profilUpdate_insertKontakt_error'));
 			if ($insert_kontakt_id) {
-				$this->handleDupplicateZustellKontakte($requested_change['zustellung'], $insert_kontakt_id);
+				$this->handleDupplicateZustellKontakte($requested_change['zustellung'], $insert_kontakt_id, $requested_change['kontakttyp'], $personID);
 			}
 		}
 		//! DELETE
@@ -867,18 +890,18 @@ class ProfilUpdate extends FHCAPI_Controller
 			$update_kontakt_id = $this->KontaktModel->update($kontakt_id, $requested_change);
 			$update_kontakt_id = $this->getDataOrTerminateWithError($update_kontakt_id, $this->p->t('profilUpdate', 'profilUpdate_updateKontakt_error'));
 			if ($update_kontakt_id) {
-				$this->handleDupplicateZustellKontakte($requested_change['zustellung'], $update_kontakt_id);
+				$this->handleDupplicateZustellKontakte($requested_change['zustellung'], $update_kontakt_id, $requested_change['kontakttyp'], $personID);
 			}
 		}
 		return isset($insertID) ? $insertID : null;
 	}

-	private function handleDupplicateZustellAdressen($zustellung, $adresse_id)
+	private function handleDupplicateZustellAdressen($zustellung, $adresse_id, $person_id)
 	{
 		if ($zustellung) {
 			$this->PersonModel->addSelect("public.tbl_adresse.adresse_id");
 			$this->PersonModel->addJoin("public.tbl_adresse", "public.tbl_adresse.person_id = public.tbl_person.person_id");
-			$zustellAdressenArray = $this->PersonModel->loadWhere(["public.tbl_person.person_id" => $this->pid, "zustelladresse" => TRUE]);
+			$zustellAdressenArray = $this->PersonModel->loadWhere(["public.tbl_person.person_id" => $person_id, "zustelladresse" => TRUE]);
 			if (isError($zustellAdressenArray)) {
 				$this->terminateWithError($this->p->t('profilUpdate', 'profilUpdate_loadingZustellAdressen_error'));
 			}
@@ -891,6 +914,8 @@ class ProfilUpdate extends FHCAPI_Controller
 					return $adresse->adresse_id != $adresse_id;
 				});
 	
+				$this->addMeta('bhzustelladressen', $zustellAdressenArray);
+
 				// remove the zustelladresse from all other zustelladressen
 				foreach ($zustellAdressenArray as $adresse) {
 					$this->AdresseModel->update($adresse->adresse_id, ["zustelladresse" => FALSE]);
@@ -900,12 +925,16 @@ class ProfilUpdate extends FHCAPI_Controller
 		}
 	}

-	private function handleDupplicateZustellKontakte($zustellung, $kontakt_id)
+	private function handleDupplicateZustellKontakte($zustellung, $kontakt_id, $kontakttyp, $person_id)
 	{
 		if ($zustellung) {
 			$this->PersonModel->addSelect("public.tbl_kontakt.kontakt_id");
 			$this->PersonModel->addJoin("public.tbl_kontakt", "public.tbl_kontakt.person_id = public.tbl_person.person_id");
-			$zustellKontakteArray = $this->PersonModel->loadWhere(["public.tbl_person.person_id" => $this->pid, "zustellung" => TRUE]);
+			$zustellKontakteArray = $this->PersonModel->loadWhere([
+				"public.tbl_person.person_id" => $person_id,
+				"zustellung" => TRUE,
+				"kontakttyp" => $kontakttyp
+			]);
 			if (!isSuccess($zustellKontakteArray)) {
 				return error($this->p->t('profilUpdate', 'profilUpdate_loadingZustellkontakte_error'));
 			}
@@ -0,0 +1,110 @@
+<?php
+/**
+ * Copyright (C) 2025 fhcomplete.org
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+if (!defined('BASEPATH'))
+	exit('No direct script access allowed');
+
+class DirektGruppe extends FHCAPI_Controller
+{
+	private $_ci;
+	public function __construct()
+	{
+		parent::__construct([
+			'add' => ['admin:rw', 'assistenz:rw'],
+			'delete' => ['admin:rw', 'assistenz:rw'],
+			'getByLehreinheit' => ['admin:r', 'assistenz:r'],
+		]);
+
+		$this->_ci = &get_instance();
+
+		$this->loadPhrases([
+			'ui'
+		]);
+		$this->_ci->load->model('education/Lehreinheitgruppe_model', 'LehreinheitgruppeModel');
+		$this->_ci->load->model('education/lehreinheit_model', 'LehreinheitModel');
+		$this->_ci->load->model('person/Benutzer_model', 'BenutzerModel');
+	}
+
+	public function add()
+	{
+		$uid = $this->input->post('uid');
+		$lehreinheit_id = $this->input->post('lehreinheit_id');
+
+		$this->checkPermission($lehreinheit_id, $uid);
+
+		$result = $this->_ci->LehreinheitgruppeModel->direktUserAdd($uid, $lehreinheit_id);
+
+		if (isError($result))
+			$this->terminateWithError(getError($result));
+
+		$this->terminateWithSuccess($result);
+	}
+
+	public function delete()
+	{
+		$uid = $this->input->post('uid');
+		$lehreinheit_id = $this->input->post('lehreinheit_id');
+
+		$this->checkPermission($lehreinheit_id, $uid);
+
+		$result = $this->_ci->LehreinheitgruppeModel->direktUserDelete($uid, $lehreinheit_id);
+
+		if (isError($result))
+			$this->terminateWithError(getError($result));
+
+		$this->terminateWithSuccess($result);
+	}
+
+	public function getByLehreinheit($lehreinheit_id = null)
+	{
+		$this->checkPermission($lehreinheit_id);
+		$gruppen = $this->_ci->LehreinheitgruppeModel->getDirectGroup($lehreinheit_id);
+		$this->terminateWithSuccess(hasData($gruppen) ? getData($gruppen) : array());
+	}
+
+	private function checkPermission($lehreinheit_id, $uid = false)
+	{
+		if (is_null($lehreinheit_id) || !ctype_digit((string)$lehreinheit_id))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$lehreinheit_result = $this->_ci->LehreinheitModel->load($lehreinheit_id);
+
+		if (!hasData($lehreinheit_result) || isError($lehreinheit_result))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		if ($uid)
+		{
+			$benuzuer_result = $this->_ci->BenutzerModel->load(array($uid));
+			if (!hasData($benuzuer_result) || isError($benuzuer_result))
+				$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+		}
+
+		$result = $this->_ci->LehreinheitModel->getOes($lehreinheit_id);
+
+		if (isError($result))
+			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		$oe_array = [];
+		if (hasData($result))
+			$oe_array = getData($result);
+
+		if (!$this->_ci->permissionlib->isBerechtigtMultipleOe('admin', $oe_array, 'suid') &&
+			!$this->_ci->permissionlib->isBerechtigtMultipleOe('assistenz', $oe_array, 'suid'))
+			$this->terminateWithError($this->p->t('ui', 'error_fieldWriteAccess'));
+	}
+}
@@ -0,0 +1,47 @@
+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+class Favorites extends FHCAPI_Controller
+{
+	public function __construct()
+	{
+		parent::__construct([
+			'index' => self::PERM_LOGGED,
+			'set' => self::PERM_LOGGED
+		]);
+
+		// Load models
+		$this->load->model('system/Variable_model', 'VariableModel');
+	}
+
+	public function index()
+	{
+		$result = $this->VariableModel->getVariables(getAuthUID(), ['lv_favorites']);
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		if (!$data)
+			$this->terminateWithSuccess(null);
+		else
+			$this->terminateWithSuccess(isset($data['lv_favorites']) ? $data['lv_favorites'] : null);
+	}
+
+	public function set()
+	{
+		$this->load->library('form_validation');
+
+		$this->form_validation->set_rules('favorites', 'Favorites', 'required');
+
+		if (!$this->form_validation->run())
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+
+		$favorites = $this->input->post('favorites');
+
+		$result = $this->VariableModel->setVariable(getAuthUID(), 'lv_favorites', $favorites);
+
+		$this->getDataOrTerminateWithError($result);
+		
+		$this->terminateWithSuccess(true);
+	}
+}
@@ -0,0 +1,250 @@
+<?php
+if (!defined('BASEPATH'))
+	exit('No direct script access allowed');
+
+class Gruppe extends FHCAPI_Controller
+{
+	private $_uid;
+	private $_ci;
+	public function __construct()
+	{
+		parent::__construct([
+			'add' => ['admin:rw', 'assistenz:rw'],
+			'delete' => ['admin:rw', 'assistenz:rw'],
+			'deleteFromLVPlan' => ['admin:rw', 'assistenz:rw'],
+			'getBenutzerSearch' => ['admin:r', 'assistenz:r'],
+			'getAllSearch' => ['admin:r', 'assistenz:r'],
+			'getByLehreinheit' => ['admin:r', 'assistenz:r'],
+		]);
+
+		$this->_ci = &get_instance();
+		$this->_setAuthUID();
+		$this->_ci->load->library('PhrasesLib');
+		$this->loadPhrases(
+			array(
+				'ui',
+				'lehre'
+			)
+		);
+
+		$this->_ci->load->model('organisation/Gruppe_model', 'GruppeModel');
+		$this->_ci->load->model('organisation/Lehrverband_model', 'LehrverbandModel');
+		$this->_ci->load->model('education/Lehreinheitgruppe_model', 'LehreinheitgruppeModel');
+		$this->_ci->load->model('person/Person_model', 'PersonModel');
+		$this->_ci->load->model('ressource/stundenplandev_model', 'StundenplandevModel');
+	}
+
+	public function delete()
+	{
+		$lehreinheitgruppe_id = $this->input->post('lehreinheitgruppe_id');
+		$lehreinheit_id = $this->input->post('lehreinheit_id');
+
+		if (is_null($lehreinheit_id) || !ctype_digit((string)$lehreinheit_id) || is_null($lehreinheitgruppe_id) || !ctype_digit((string)$lehreinheitgruppe_id))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$lehreinheitgruppe_result = $this->_ci->LehreinheitgruppeModel->loadWhere(array('lehreinheitgruppe_id' => $lehreinheitgruppe_id));
+		if (!hasData($lehreinheitgruppe_result) || isError($lehreinheitgruppe_result))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$this->checkPermission($lehreinheit_id);
+
+		$result = $this->_ci->LehreinheitgruppeModel->deleteGroup($lehreinheit_id, $lehreinheitgruppe_id);
+
+		if (isError($result))
+			$this->terminateWithError(getError($result));
+
+		$this->terminateWithSuccess($result);
+	}
+
+	public function add()
+	{
+		$lehreinheit_id = $this->input->post('lehreinheit_id');
+		$gid = $this->input->post('gid');
+		$lehrverband = $this->input->post('lehrverband');
+
+		if (is_null($lehreinheit_id) || !ctype_digit((string)$lehreinheit_id) || is_null($gid) || !ctype_digit((string)$gid) || is_null($lehrverband))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$this->checkPermission($lehreinheit_id);
+
+		$result = $this->_ci->LehreinheitgruppeModel->addGroup($lehreinheit_id, $gid, !($lehrverband === 'false'));
+
+		if (isError($result))
+			$this->terminateWithError(getError($result));
+
+		$this->terminateWithSuccess($result);
+	}
+
+	public function getByLehreinheit($lehreinheit_id = null)
+	{
+		if (is_null($lehreinheit_id) || !ctype_digit((string)$lehreinheit_id))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$this->checkPermission($lehreinheit_id);
+
+		$gruppen = $this->_ci->LehreinheitgruppeModel->getByLehreinheit($lehreinheit_id);
+		$this->terminateWithSuccess(hasData($gruppen) ? getData($gruppen) : array());
+	}
+
+	public function deleteFromLVPlan()
+	{
+		$lehreinheit_id = $this->input->post('lehreinheit_id');
+		$lehreinheitgruppe_id = $this->input->post('lehreinheitgruppe_id');
+
+		if (is_null($lehreinheit_id) || !ctype_digit((string)$lehreinheit_id) || is_null($lehreinheitgruppe_id) || !ctype_digit((string)$lehreinheitgruppe_id))
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$lehreinheitgruppe_result = $this->_ci->LehreinheitgruppeModel->loadWhere(array('lehreinheitgruppe_id' => $lehreinheitgruppe_id));
+		if (!hasData($lehreinheitgruppe_result) || isError($lehreinheitgruppe_result))
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$this->checkPermission($lehreinheit_id);
+
+		$result = $this->_ci->StundenplandevModel->deleteGroupPlanning($lehreinheit_id, $lehreinheitgruppe_id);
+
+		if (isError($result))
+			$this->terminateWithError(getError($result));
+
+		$this->terminateWithSuccess($result);
+	}
+
+
+	public function getAllSearch()
+	{
+		$query = $this->input->get('query');
+
+		if (is_null($query))
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$query_words = explode(' ', $query);
+
+		$this->_ci->GruppeModel->addSelect('gruppe_kurzbz,
+											studiengang_kz,
+											semester,
+											bezeichnung,
+											gid,
+											\'false\' as lehrverband');
+		$this->_ci->GruppeModel->db->where(array('sichtbar' => true, 'aktiv' => true, 'lehre' => true, 'direktinskription' => false, 'semester IS NOT NULL' => null));
+		$this->_ci->GruppeModel->db->group_start();
+		foreach ($query_words as $word)
+		{
+			$this->_ci->GruppeModel->db->group_start();
+			$this->_ci->GruppeModel->db->where('gruppe_kurzbz ILIKE', "%" . $word . "%");
+			$this->_ci->GruppeModel->db->or_where('bezeichnung ILIKE', "%" . $word . "%");
+			$this->_ci->GruppeModel->db->group_end();
+		}
+		$this->_ci->GruppeModel->db->group_end();
+
+		$gruppen_result = $this->_ci->GruppeModel->load();
+
+		$gruppen_array = array();
+
+		if (isError($gruppen_result))
+			$this->terminateWithError(getError($gruppen_result), self::ERROR_TYPE_GENERAL);
+
+		if (hasData($gruppen_result))
+			$gruppen_array = getData($gruppen_result);
+
+		$this->_ci->LehrverbandModel->addSelect('CONCAT(UPPER(CONCAT(typ, kurzbz)), \'\', semester, verband, COALESCE(gruppe,\'\')) as gruppe_kurzbz,
+												studiengang_kz,
+												semester,
+												tbl_lehrverband.bezeichnung,
+												gid,
+												\'true\' as lehrverband');
+		$this->_ci->LehrverbandModel->addJoin('public.tbl_studiengang', 'studiengang_kz');
+		$this->_ci->LehrverbandModel->addOrder('verband');
+		$this->_ci->LehrverbandModel->addOrder('gruppe');
+		$this->_ci->LehrverbandModel->db->where(array('tbl_lehrverband.aktiv' => true));
+
+		$this->_ci->LehrverbandModel->db->group_start();
+		foreach ($query_words as $word)
+		{
+			$this->_ci->LehrverbandModel->db->group_start();
+			$this->_ci->LehrverbandModel->db->where('CONCAT(CONCAT(typ, kurzbz), \'\', semester, verband, COALESCE(gruppe,\'\')) ILIKE', "%" . $word . "%");
+			$this->_ci->LehrverbandModel->db->or_where('tbl_lehrverband.bezeichnung ILIKE', "%" . $word . "%");
+			$this->_ci->LehrverbandModel->db->group_end();
+		}
+		$this->_ci->LehrverbandModel->db->group_end();
+		$lehrverband_result = $this->_ci->LehrverbandModel->load();
+
+		$lehrverband_array = array();
+
+		if (isError($lehrverband_result))
+			$this->terminateWithError(getError($lehrverband_result), self::ERROR_TYPE_GENERAL);
+
+		if (hasData($lehrverband_result))
+			$lehrverband_array = getData($lehrverband_result);
+
+		$all_gruppen = array_merge($gruppen_array, $lehrverband_array);
+
+		$this->terminateWithSuccess($all_gruppen);
+	}
+
+	public function getBenutzerSearch()
+	{
+		$query = $this->input->get('query');
+
+		if (is_null($query))
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$query_words = explode(' ', $query);
+
+		$this->_ci->PersonModel->addSelect('vorname, nachname, uid, semester, UPPER(CONCAT(tbl_studiengang.typ, tbl_studiengang.kurzbz)) as studiengang');
+		$this->_ci->PersonModel->addJoin('public.tbl_benutzer', 'person_id');
+		$this->_ci->PersonModel->addJoin('public.tbl_mitarbeiter', 'uid = mitarbeiter_uid', 'LEFT');
+		$this->_ci->PersonModel->addJoin('public.tbl_student', 'uid = student_uid', 'LEFT');
+		$this->_ci->PersonModel->addJoin('public.tbl_studiengang', 'studiengang_kz', 'LEFT');
+
+		$this->_ci->PersonModel->db->where(array('tbl_benutzer.aktiv' => true));
+
+		$this->_ci->PersonModel->db->group_start();
+		foreach ($query_words as $word)
+		{
+			$this->_ci->PersonModel->db->group_start();
+			$this->_ci->PersonModel->db->where('tbl_person.vorname ILIKE', "%" . $word . "%");
+			$this->_ci->PersonModel->db->or_where('tbl_person.nachname ILIKE', "%" . $word . "%");
+			$this->_ci->PersonModel->db->or_where('uid ILIKE', "%" . $word . "%");
+			$this->_ci->PersonModel->db->or_where('CONCAT(tbl_studiengang.typ, tbl_studiengang.kurzbz) ILIKE', "%" . $word . "%");
+
+			if (is_numeric($word))
+			{
+				$this->_ci->PersonModel->db->or_where('semester', $word);
+			}
+			$this->_ci->PersonModel->db->group_end();
+		}
+		$this->_ci->PersonModel->db->group_end();
+		$personen = $this->_ci->PersonModel->load();
+		$this->terminateWithSuccess(hasData($personen) ? getData($personen) : array());
+	}
+
+	private function _setAuthUID()
+	{
+		$this->_uid = getAuthUID();
+
+		if (!$this->_uid)
+			show_error('User authentification failed');
+	}
+
+	private function checkPermission($lehreinheit_id)
+	{
+		$lehreinheit_result = $this->_ci->LehreinheitModel->load($lehreinheit_id);
+
+		if (!hasData($lehreinheit_result) || isError($lehreinheit_result))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$result = $this->_ci->LehreinheitModel->getOes($lehreinheit_id);
+
+		if (isError($result))
+			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		$oe_array = [];
+		if (hasData($result))
+			$oe_array = getData($result);
+
+		if (!$this->_ci->permissionlib->isBerechtigtMultipleOe('admin', $oe_array, 'suid') &&
+			!$this->_ci->permissionlib->isBerechtigtMultipleOe('assistenz', $oe_array, 'suid') &&
+			!$this->_ci->permissionlib->isBerechtigtMultipleOe('lv-plan', $oe_array, 'suid'))
+			$this->terminateWithError($this->p->t('ui', 'error_fieldWriteAccess'));
+	}
+
+}
@@ -0,0 +1,478 @@
+<?php
+if (!defined('BASEPATH'))
+	exit('No direct script access allowed');
+
+class Lehreinheit extends FHCAPI_Controller
+{
+	private $_uid;
+	private $_ci;
+	public function __construct()
+	{
+		parent::__construct([
+			'add' => ['admin:rw',  'assistenz:rw'],
+			'copy' => ['admin:rw',  'assistenz:rw'],
+			'delete' => ['admin:rw',  'assistenz:rw'],
+			'update' => ['admin:rw',  'assistenz:rw'],
+
+			'get' =>  ['admin:r', 'assistenz:r'],
+			'getStudiensemester' => ['admin:r', 'assistenz:r'],
+			'getLehrfach' => ['admin:r', 'assistenz:r'],
+			'getSprache' => ['admin:r', 'assistenz:r'],
+			'getRaumtyp' => ['admin:r', 'assistenz:r'],
+			'getLehrform' => ['admin:r', 'assistenz:r']
+		]);
+
+		$this->_ci = &get_instance();
+		$this->_setAuthUID();
+		$this->_ci->load->library('VariableLib', ['uid' => $this->_uid]);
+		$this->_ci->load->library('PhrasesLib');
+		$this->loadPhrases(
+			array(
+				'global',
+				'ui'
+			)
+		);
+
+		$this->_ci->load->model('education/Lehreinheit_model', 'LehreinheitModel');
+		$this->_ci->load->model('education/Lehreinheitgruppe_model', 'LehreinheitgruppeModel');
+		$this->_ci->load->model('education/Lehreinheitmitarbeiter_model', 'LehreinheitmitarbeiterModel');
+	}
+
+	public function get($lehreinheit_id)
+	{
+		$lehreinheit = $this->checkLehreinheit($lehreinheit_id);
+		$lehreinheit->lehrfaecher = $this->getLehrfaecher($lehreinheit);
+		$this->terminateWithSuccess($lehreinheit);
+	}
+
+	private function getLehrfaecher($lehreinheit)
+	{
+		$lehrfacher_array = array($lehreinheit->lehrfach_id);
+		$this->_ci->LehreinheitModel->addSelect('lehrveranstaltung_id_kompatibel');
+		$this->_ci->LehreinheitModel->addJoin('lehre.tbl_lehrveranstaltung_kompatibel', 'lehrveranstaltung_id');
+		$lehrfaecher = $this->_ci->LehreinheitModel->loadWhere(array('lehrveranstaltung_id' => $lehreinheit->lehrveranstaltung_id));
+
+
+		if (hasData($lehrfaecher))
+			$lehrfaecher_array = array_merge($lehrfacher_array, array_column(getData($lehrfaecher), 'lehrveranstaltung_id_kompatibel'));
+
+		$lehrfaecher_array[] = $lehreinheit->lehrveranstaltung_id;
+
+		$this->_ci->LehrveranstaltungModel->addDistinct('lehrfach_id');
+		$this->_ci->LehrveranstaltungModel->addSelect("tbl_lehrveranstaltung.lehrveranstaltung_id, CONCAT(tbl_lehrveranstaltung.bezeichnung || '(' || tbl_lehrveranstaltung.oe_kurzbz || ')') as lehrfach");
+		$this->_ci->LehrveranstaltungModel->db->where_in('tbl_lehrveranstaltung.lehrveranstaltung_id', $lehrfaecher_array);
+		$lehrfaecher_result = $this->_ci->LehrveranstaltungModel->load();
+
+		return hasData($lehrfaecher_result) ? getData($lehrfaecher_result) : array();
+	}
+
+	public function add()
+	{
+		$lehrveranstaltung_id = $this->input->post('lehrveranstaltung_id');
+
+		if (is_null($lehrveranstaltung_id) || !ctype_digit((string)$lehrveranstaltung_id))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$lehrveranstaltung_result = $this->_ci->LehrveranstaltungModel->loadWhere(array('lehrveranstaltung_id' => $lehrveranstaltung_id));
+
+		if (!hasData($lehrveranstaltung_result) || isError($lehrveranstaltung_result))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$lehrveranstaltung = getData($lehrveranstaltung_result)[0];
+
+		$oe_result = $this->_ci->LehrveranstaltungModel->getAllOe($lehrveranstaltung->lehrveranstaltung_id);
+		$oe_array = hasData($oe_result) ? array_column(getData($oe_result), 'oe_kurzbz') : array();
+
+		if (!$this->_ci->permissionlib->isBerechtigtMultipleOe('admin', $oe_array, 'suid') &&
+			!$this->_ci->permissionlib->isBerechtigtMultipleOe('assistenz', $oe_array, 'suid') &&
+			!$this->_ci->permissionlib->isBerechtigtMultipleOe('lv-plan', $oe_array, 'suid'))
+			$this->terminateWithError($this->p->t('ui', 'error_fieldWriteAccess'));
+
+		$this->_ci->load->library('form_validation');
+
+		$updatableFields = array(
+			'lehrveranstaltung_id',
+			'studiensemester_kurzbz',
+			'lehrfach_id',
+			'lehrform_kurzbz',
+			'stundenblockung',
+			'wochenrythmus',
+			'gewicht',
+			'start_kw',
+			'raumtyp',
+			'raumtypalternativ',
+			'sprache',
+			'lehre',
+			'anmerkung',
+			'lvnr',
+			'unr',
+		);
+
+		foreach ($updatableFields as $field)
+		{
+			switch ($field) {
+				case 'lehrveranstaltung_id':
+					$this->form_validation->set_rules($field, 'Lehrveranstaltung ID', 'required|integer');
+					break;
+				case 'studiensemester_kurzbz':
+					$this->form_validation->set_rules($field, 'Studiensemester', 'required|max_length[16]');
+					break;
+				case 'lehrfach_id':
+					$this->form_validation->set_rules($field, 'Lehrfach ID', 'required|integer');
+					break;
+				case 'lehrform_kurzbz':
+					$this->form_validation->set_rules($field, 'Lehrform', 'required|max_length[8]');
+					break;
+				case 'stundenblockung':
+					$this->form_validation->set_rules($field, 'Stundenblockung', 'required|integer|greater_than_equal_to[0]');
+					break;
+				case 'wochenrythmus':
+					$this->form_validation->set_rules($field, 'Wochenrhytmus', 'required|integer|greater_than_equal_to[0]');
+					break;
+				case 'start_kw':
+					$this->form_validation->set_rules($field, 'Start KW', 'integer|greater_than[0]|less_than_equal_to[53]');
+					break;
+				case 'gewicht':
+					$this->form_validation->set_rules($field, 'Gewicht', 'numeric');
+					break;
+				case 'raumtyp':
+					$this->form_validation->set_rules($field, 'Raumtyp', 'required|max_length[16]');
+					break;
+				case 'raumtypalternativ':
+					$this->form_validation->set_rules($field, 'Raumtyp Alternativ', 'required|max_length[16]');
+					break;
+				case 'sprache':
+					$this->form_validation->set_rules($field, 'Sprache', 'required|max_length[16]');
+					break;
+				case 'lvnr':
+					$this->form_validation->set_rules($field, 'LVNR', 'integer');
+					break;
+				case 'unr':
+					$this->form_validation->set_rules($field, 'UNR', 'integer');
+					break;
+				case 'lehre':
+					$this->form_validation->set_rules($field, 'Lehre', 'trim');
+					break;
+				case 'anmerkung':
+					$this->form_validation->set_rules($field, 'Anmerkung', 'trim');
+					break;
+			}
+		}
+
+		if ($this->form_validation->run() === false)
+		{
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+		}
+
+		$updateData = array();
+		foreach ($updatableFields as $field)
+		{
+			$value = $this->input->post($field);
+
+			if ($field === 'lehre')
+			{
+				$value = (bool)$value;
+			}
+			if ($value !== null)
+			{
+				$updateData[$field] = $value;
+			}
+		}
+
+		$updateData['insertvon'] = $this->_uid;
+		$updateData['insertamum'] = date('Y-m-d H:i:s');
+
+		$result = $this->_ci->LehreinheitModel->insert(
+			$updateData
+		);
+
+		if (!isset($updateData['unr']))
+		{
+			$unr = getData($result);
+			$this->_ci->LehreinheitModel->update($unr, array('unr' => $unr));
+		}
+
+		$this->terminateWithSuccess($result);
+	}
+
+	public function copy()
+	{
+		$lehreinheit_id = $this->input->post('lehreinheit_id');
+		$art = $this->input->post('art');
+
+		$lehreinheit_old = $this->checkLehreinheit($lehreinheit_id);
+		$this->checkPermission($lehreinheit_old->lehreinheit_id);
+
+		$lehreinheit_new = $lehreinheit_old;
+
+		$lehreinheit_new->unr = null;
+		unset($lehreinheit_new->lehreinheit_id);
+		$lehreinheit_new->updateamum = date('Y-m-d H:i:s');
+		$lehreinheit_new->updatevon = $this->_uid;
+		$lehreinheit_new->insertamum = date('Y-m-d H:i:s');
+		$lehreinheit_new->insertvon = $this->_uid;
+
+		$insert_result = $this->_ci->LehreinheitModel->insert($lehreinheit_new);
+
+		if (isError($insert_result))
+			$this->terminateWithError(getError($insert_result), self::ERROR_TYPE_GENERAL);
+
+		$lehreinheit_id_new = getData($insert_result);
+
+		$this->_ci->LehreinheitModel->update(array('lehreinheit_id' => $lehreinheit_id_new), array('unr' => $lehreinheit_id_new));
+		if (in_array($art, array('gruppen', 'alle')))
+		{
+			$gruppen_result = $this->_ci->LehreinheitgruppeModel->loadWhere(array('lehreinheit_id' => $lehreinheit_id));
+
+			if (isError($gruppen_result))
+				$this->terminateWithError(getError($gruppen_result), self::ERROR_TYPE_GENERAL);
+
+			if (hasData($gruppen_result))
+			{
+				$gruppen = getData($gruppen_result);
+
+				foreach ($gruppen as $gruppe)
+				{
+					$gruppe_new = $gruppe;
+					unset($gruppe_new->lehreinheitgruppe_id);
+					$gruppe_new->lehreinheit_id = $lehreinheit_id_new;
+					$gruppe_new->insertamum = date('Y-m-d H:i:s');
+					$gruppe_new->insertvon = $this->_uid;
+					$gruppe_new->updateamum = date('Y-m-d H:i:s');
+					$gruppe_new->updatevon = $this->_uid;
+
+					$gruppe_new_result = $this->_ci->LehreinheitgruppeModel->insert($gruppe_new);
+
+					if (isError($gruppe_new_result))
+						$this->terminateWithError(getError($gruppe_new_result), self::ERROR_TYPE_GENERAL);
+				}
+			}
+		}
+
+		if (in_array($art, array('lektoren', 'alle')))
+		{
+			$lektoren_result = $this->_ci->LehreinheitmitarbeiterModel->loadWhere(array('lehreinheit_id' => $lehreinheit_id));
+
+			if (isError($lektoren_result))
+				$this->terminateWithError(getError($lektoren_result), self::ERROR_TYPE_GENERAL);
+
+			if (hasData($lektoren_result))
+			{
+				$lektoren = getData($lektoren_result);
+
+				foreach ($lektoren as $lektor)
+				{
+
+					$lektor_new = $lektor;
+					$lektor_new->lehreinheit_id = $lehreinheit_id_new;
+					$lektor_new->insertamum = date('Y-m-d H:i:s');
+					$lektor_new->insertvon = $this->_uid;
+					$lektor_new->updateamum = date('Y-m-d H:i:s');
+					$lektor_new->updatevon = $this->_uid;
+					unset($lektor_new->vertrag_id);
+
+					$lektor_new_result = $this->_ci->LehreinheitmitarbeiterModel->insert((array)$lektor_new);
+
+					if (isError($lektor_new_result))
+						$this->terminateWithError(getError($lektor_new_result), self::ERROR_TYPE_GENERAL);
+				}
+			}
+		}
+
+		$this->terminateWithSuccess("Erfolgeich gespeichert");
+	}
+
+	public function delete()
+	{
+		$lehreinheit_id = $this->input->post('lehreinheit_id');
+
+		$errors = array();
+		if (is_array($lehreinheit_id))
+		{
+			foreach ($lehreinheit_id as $le_id)
+			{
+				$lehreinheit = $this->checkLehreinheit($le_id);
+				$this->checkPermission($lehreinheit->lehreinheit_id);
+
+				$result = $this->_ci->LehreinheitModel->deleteLehreinheit($lehreinheit->lehreinheit_id);
+
+				if (isError($result))
+				{
+					$errors[] = getError($result);
+				}
+			}
+		}
+		else
+		{
+			$lehreinheit = $this->checkLehreinheit($lehreinheit_id);
+			$this->checkPermission($lehreinheit->lehreinheit_id);
+
+			$result = $this->_ci->LehreinheitModel->deleteLehreinheit($lehreinheit->lehreinheit_id);
+
+			if (isError($result))
+				$this->terminateWithError(getError($result));
+		}
+
+		if (!isEmptyArray($errors))
+		{
+			if (count($errors) !== count($lehreinheit_id))
+				$this->terminateWithSuccess(array('errors' => $errors));
+			else
+				$this->terminateWithError($errors);
+		}
+		else
+			$this->terminateWithSuccess('Erfolgreich geloescht');
+	}
+
+	public function update()
+	{
+		$lehreinheit = $this->checkLehreinheit($this->input->post('lehreinheit_id'));
+
+		$this->checkPermission($lehreinheit->lehreinheit_id);
+
+		$this->_ci->load->library('form_validation');
+
+		$formData = $this->input->post('formData');
+
+		$updatableFields = array(
+			'lehrveranstaltung_id',
+			'studiensemester_kurzbz',
+			'lehrfach_id',
+			'lehrform_kurzbz',
+			'stundenblockung',
+			'wochenrythmus',
+			'gewicht',
+			'start_kw',
+			'raumtyp',
+			'raumtypalternativ',
+			'sprache',
+			'lehre',
+			'anmerkung',
+			'lvnr',
+			'unr',
+		);
+
+		$this->form_validation->set_data($formData);
+
+		foreach ($updatableFields as $field)
+		{
+			if (array_key_exists($field, $formData))
+			{
+				switch ($field)
+				{
+					case 'lehrveranstaltung_id':
+						$this->form_validation->set_rules($field, 'Lehrveranstaltung ID', 'required|integer');
+						break;
+					case 'studiensemester_kurzbz':
+						$this->form_validation->set_rules($field, 'Studiensemester', 'required|max_length[16]');
+						break;
+					case 'lehrfach_id':
+						$this->form_validation->set_rules($field, 'Lehrfach ID', 'required|integer');
+						break;
+					case 'lehrform_kurzbz':
+						$this->form_validation->set_rules($field, 'Lehrform', 'required|max_length[8]');
+						break;
+					case 'stundenblockung':
+						$this->form_validation->set_rules($field, 'Stundenblockung', 'required|integer|greater_than_equal_to[0]');
+						break;
+					case 'wochenrythmus':
+						$this->form_validation->set_rules($field, 'Wochenrhytmus', 'required|integer|greater_than_equal_to[0]');
+						break;
+					case 'start_kw':
+						$this->form_validation->set_rules($field, 'Start KW', 'integer|greater_than[0]|less_than_equal_to[53]');
+						break;
+					case 'gewicht':
+						$this->form_validation->set_rules($field, 'Gewicht', 'numeric|greater_than_equal_to[0]');
+						break;
+					case 'raumtyp':
+						$this->form_validation->set_rules($field, 'Raumtyp', 'required|max_length[16]');
+						break;
+					case 'raumtypalternativ':
+						$this->form_validation->set_rules($field, 'Raumtyp Alternativ', 'required|max_length[16]');
+						break;
+					case 'sprache':
+						$this->form_validation->set_rules($field, 'Sprache', 'required|max_length[16]');
+						break;
+					case 'lvnr':
+						$this->form_validation->set_rules($field, 'LVNR', 'integer');
+						break;
+					case 'unr':
+						$this->form_validation->set_rules($field, 'UNR', 'integer|greater_than_equal_to[0]');
+						break;
+					case 'lehre':
+						$this->form_validation->set_rules($field, 'Lehre', 'trim');
+						break;
+					case 'anmerkung':
+						$this->form_validation->set_rules($field, 'Anmerkung', 'trim');
+						break;
+				}
+			}
+		}
+
+		if ($this->form_validation->run() === false)
+		{
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+		}
+
+		$updateData = [];
+		foreach ($updatableFields as $field)
+		{
+			if (array_key_exists($field, $formData))
+			{
+				$updateData[$field] = $formData[$field];
+			}
+		}
+
+
+		$updateData['updatevon'] = $this->_uid;
+		$updateData['updateamum'] = date('Y-m-d H:i:s');
+		$result = $this->_ci->LehreinheitModel->update(
+			[
+				'lehreinheit_id' => $this->input->post('lehreinheit_id'),
+			],
+			$updateData
+		);
+
+		if (isError($result))
+			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+		$this->terminateWithSuccess($this->p->t('global', 'gespeichert'));
+	}
+
+
+	private function checkPermission($lehreinheit_id)
+	{
+		$result = $this->_ci->LehreinheitModel->getOes($lehreinheit_id);
+
+		if (isError($result))
+			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		$oe_array = [];
+		if (hasData($result))
+			$oe_array = getData($result);
+
+		if (!$this->_ci->permissionlib->isBerechtigtMultipleOe('admin', $oe_array, 'suid') &&
+			!$this->_ci->permissionlib->isBerechtigtMultipleOe('assistenz', $oe_array, 'suid') &&
+			!$this->_ci->permissionlib->isBerechtigtMultipleOe('lv-plan', $oe_array, 'suid'))
+			$this->terminateWithError($this->p->t('ui', 'error_fieldWriteAccess'));
+	}
+	private function checkLehreinheit($lehreinheit_id)
+	{
+		if (is_null($lehreinheit_id) || !ctype_digit((string)$lehreinheit_id))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$lehreinheit_result = $this->_ci->LehreinheitModel->load($lehreinheit_id);
+
+		if (!hasData($lehreinheit_result) || isError($lehreinheit_result))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		return getData($lehreinheit_result)[0];
+	}
+
+	private function _setAuthUID()
+	{
+		$this->_uid = getAuthUID();
+
+		if (!$this->_uid)
+			show_error('User authentification failed');
+	}
+}
@@ -0,0 +1,432 @@
+<?php
+if (!defined('BASEPATH'))
+	exit('No direct script access allowed');
+
+class Lektor extends FHCAPI_Controller
+{
+	private $_uid;
+	private $_ci;
+	public function __construct()
+	{
+		parent::__construct([
+			'add' => ['admin:rw', 'assistenz:rw'],
+			'update' => ['admin:rw', 'assistenz:rw'],
+			'cancelVertrag' => ['admin:rw', 'assistenz:rw'],
+			'deleteLVPlan' => ['admin:rw', 'assistenz:rw'],
+			'deletePerson' => ['admin:rw', 'assistenz:rw'],
+			'getLehrfunktionen' => ['admin:r', 'assistenz:r'],
+			'getLektorenSearch' => ['admin:r', 'assistenz:r'],
+			'getLektorenByLE' => ['admin:r', 'assistenz:r'],
+			'getLektorDaten' => ['admin:r', 'assistenz:r'],
+			'getLektorVertrag' => ['admin:r', 'assistenz:r'],
+
+		]);
+
+		$this->_ci = &get_instance();
+		$this->_setAuthUID();
+		$this->_ci->load->library('VariableLib', ['uid' => $this->_uid]);
+		$this->_ci->load->library('PermissionLib');
+		$this->_ci->load->library('LektorLib');
+		$this->_ci->load->library('form_validation');
+		$this->loadPhrases([
+			'ui'
+		]);
+
+		$this->_ci->load->model('accounting/Vertrag_model', 'VertragModel');
+		$this->_ci->load->model('ressource/Mitarbeiter_model', 'MitarbeiterModel');
+		$this->_ci->load->model('education/lehreinheit_model', 'LehreinheitModel');
+		$this->_ci->load->model('education/Lehreinheitmitarbeiter_model', 'LehreinheitmitarbeiterModel');
+		$this->_ci->load->model('ressource/stundenplandev_model', 'StundenplandevModel');
+		$this->_ci->load->model('ressource/Stundensatz_model', 'StundensatzModel');
+
+	}
+
+	private function checkMitarbeiter($mitarbeiter_uid)
+	{
+		if (is_null($mitarbeiter_uid))
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$mitarbeiter_result = $this->_ci->MitarbeiterModel->load($mitarbeiter_uid);
+
+		if (!hasData($mitarbeiter_result) || isError($mitarbeiter_result))
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+	}
+
+	public function add()
+	{
+		$lehreinheit_id = $this->input->post('lehreinheit_id');
+		$mitarbeiter_uid = $this->input->post('mitarbeiter_uid');
+
+		$this->checkLehreinheit($lehreinheit_id);
+		$this->checkMitarbeiter($mitarbeiter_uid);
+		$lehrfach_permission = $this->checkLehrfachPermission($lehreinheit_id, array('assistenz', 'admin'));
+		$lehreinheit_permission = $this->checkPermission($lehreinheit_id, array('admin', 'assistenz', 'lv-plan'));
+
+		if (!$lehrfach_permission && !$lehreinheit_permission)
+			$this->terminateWithError($this->p->t('ui', 'error_fieldWriteAccess'));
+
+		$result = $this->_ci->lektorlib->addLektorToLehreinheit($lehreinheit_id, $mitarbeiter_uid);
+
+		if (isError($result)) $this->terminateWithError(getError($result));
+
+		$this->terminateWithSuccess("Erfolgreich gespeichert");
+	}
+
+	public function update()
+	{
+		$formData = $this->input->post('formData');
+		$lehreinheit_id = $this->input->post('lehreinheit_id');
+		$mitarbeiter_uid = $this->input->post('mitarbeiter_uid');
+
+		$this->checkLehreinheit($lehreinheit_id);
+		$this->checkMitarbeiter($mitarbeiter_uid);
+
+		$updatableFields = array(
+			'lehrfunktion_kurzbz',
+			'planstunden',
+			'stundensatz',
+			'faktor',
+			'anmerkung',
+			'bismelden',
+			'semesterstunden',
+			'mitarbeiter_uid'
+		);
+
+		$this->form_validation->set_data($formData);
+
+		foreach ($updatableFields as $field)
+		{
+			if (array_key_exists($field, $formData))
+			{
+				switch ($field)
+				{
+					case 'lehrfunktion_kurzbz':
+						$this->form_validation->set_rules($field, 'Lehrfunktion', 'required|max_length[16]');
+						break;
+					case 'planstunden':
+						$this->form_validation->set_rules($field, 'Planstunden', 'integer|greater_than_equal_to[0]');
+						break;
+					case 'stundensatz':
+						$formData['stundensatz'] = str_replace(',', '.', $formData['stundensatz']);
+						$this->form_validation->set_rules($field, 'Stundensatz', 'callback__check_stundensatz');
+						break;
+					case 'faktor':
+						$this->form_validation->set_rules($field, 'Faktor', 'numeric|greater_than_equal_to[0]');
+						break;
+					case 'anmerkung':
+						$this->form_validation->set_rules($field, 'Anmerkung', 'max_length[256]');
+						break;
+					case 'bismelden':
+						$this->form_validation->set_rules($field, 'Bis Melden', 'trim');
+						break;
+					case 'semesterstunden':
+						$formData['semesterstunden'] = str_replace(',', '.', $formData['semesterstunden']);
+						$this->form_validation->set_rules($field, 'Semesterstunden', 'callback__check_semesterstunden');
+						break;
+					case 'mitarbeiter_uid':
+						$this->form_validation->set_rules($field, 'Semesterstunden', 'required|max_length[32]');
+						break;
+				}
+			}
+		}
+		if (!$this->form_validation->run())
+		{
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+		}
+
+		if (isset($formData['semesterstunden']) && (!is_numeric($formData['semesterstunden']) || $formData['semesterstunden'] === ''))
+		{
+			$formData['semesterstunden'] = null;
+		}
+
+		$lehreinheit_permission = $this->checkPermission($lehreinheit_id, array('admin', 'assistenz', 'lv-plan'));
+
+		if (!$lehreinheit_permission)
+			$this->terminateWithError($this->p->t('ui', 'error_fieldWriteAccess'));
+
+		$result = $this->_ci->lektorlib->updateLektorFromLehreinheit($lehreinheit_id, $mitarbeiter_uid, $formData);
+
+		if (isError($result)) $this->terminateWithError(getError($result));
+		$this->terminateWithSuccess($result);
+	}
+
+	public function _check_stundensatz($value)
+	{
+		$value = str_replace(',', '.', $value);
+
+		if (!is_numeric($value))
+		{
+			$this->form_validation->set_message('_check_decimal', 'Das Feld {field} muss eine Zahl sein.');
+			return false;
+		}
+
+		if ($value < 0 || $value >= 10000) {
+			$this->form_validation->set_message('_check_decimal', 'Das Feld {field} muss zwischen 0 und 10000 liegen.');
+			return false;
+		}
+
+		return true;
+	}
+	public function _check_semesterstunden($value)
+	{
+		if ($value === null || $value === '') {
+			return true;
+		}
+
+		if (!is_numeric($value))
+		{
+			$this->form_validation->set_message(
+				'_check_semesterstunden',
+				'Das Feld {field} muss eine Zahl sein.'
+			);
+			return false;
+		}
+
+		if ($value < 0)
+		{
+			$this->form_validation->set_message(
+				'_check_semesterstunden',
+				'Das Feld {field} muss eine Zahl größer oder gleich 0 sein.'
+			);
+			return false;
+		}
+		if ($value > 999.99)
+		{
+			$this->form_validation->set_message(
+				'_check_semesterstunden',
+				'Das Feld {field} darf maximal 999,99 betragen.'
+			);
+			return false;
+		}
+
+		return true;
+	}
+	public function getLehrfunktionen()
+	{
+		$this->_ci->load->model('education/Lehrfunktion_model', 'LehrfunktionModel');
+		$this->_ci->LehrfunktionModel->addOrder('lehrfunktion_kurzbz');
+		$this->terminateWithSuccess(getData($this->_ci->LehrfunktionModel->load()));
+	}
+
+	public function getLektorenSearch()
+	{
+		$query = $this->input->get('query');
+
+		if (is_null($query))
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$query_words = explode(' ', $query);
+
+		$this->_ci->MitarbeiterModel->addSelect('uid, person_id, vorname, nachname');
+		$this->_ci->MitarbeiterModel->addJoin('public.tbl_benutzer', 'uid = mitarbeiter_uid');
+		$this->_ci->MitarbeiterModel->addJoin('public.tbl_person', 'person_id');
+
+		$this->_ci->MitarbeiterModel->db->where('public.tbl_benutzer.aktiv', true);
+
+		$this->_ci->MitarbeiterModel->db->group_start();
+		foreach ($query_words as $word)
+		{
+			$this->_ci->MitarbeiterModel->db->group_start();
+			$this->_ci->MitarbeiterModel->db->where('tbl_person.vorname ILIKE', "%" . $word . "%");
+			$this->_ci->MitarbeiterModel->db->or_where('tbl_person.nachname ILIKE', "%" . $word . "%");
+			$this->_ci->MitarbeiterModel->db->or_where('uid ILIKE', "%" . $word . "%");
+			$this->_ci->MitarbeiterModel->db->group_end();
+		}
+		$this->_ci->MitarbeiterModel->db->group_end();
+		$this->_ci->MitarbeiterModel->addOrder('nachname');
+		$this->_ci->MitarbeiterModel->addOrder('vorname');
+		$result = $this->_ci->MitarbeiterModel->load();
+		$this->terminateWithSuccess(hasData($result) ? getData($result) : array());
+	}
+
+	private function checkLehreinheit($lehreinheit_id)
+	{
+		if (is_null($lehreinheit_id) || !ctype_digit((string)$lehreinheit_id))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$lehreinheit_result = $this->_ci->LehreinheitModel->load($lehreinheit_id);
+
+		if (!hasData($lehreinheit_result) || isError($lehreinheit_result))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		return getData($lehreinheit_result)[0];
+
+	}
+	public function getLektorenByLE($lehreinheit_id = null)
+	{
+		$this->checkLehreinheit($lehreinheit_id);
+		$le_mitarbeiter_data = $this->_ci->LehreinheitmitarbeiterModel->getLektorenByLe($lehreinheit_id);
+		$this->terminateWithSuccess(hasData($le_mitarbeiter_data) ? getData($le_mitarbeiter_data) : array());
+	}
+
+	public function getLektorDaten($lehreinheit_id = null, $mitarbeiter_uid = null)
+	{
+		$lehreinheit = $this->checkLehreinheit($lehreinheit_id);
+
+		if (is_null($mitarbeiter_uid))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$mitarbeiter_result = $this->_ci->MitarbeiterModel->load($mitarbeiter_uid);
+
+		if (!hasData($mitarbeiter_result) || isError($mitarbeiter_result))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$this->load->model('organisation/Studiensemester_model','StudiensemesterModel');
+		$studiensemester_result = $this->_ci->StudiensemesterModel->loadWhere(array('studiensemester_kurzbz' => $lehreinheit->studiensemester_kurzbz));
+		$studiensemester = getData($studiensemester_result)[0];
+
+		$defaultStundensatz = $this->_ci->StundensatzModel->getDefaultStundensatz($mitarbeiter_uid, $studiensemester->start, $studiensemester->ende, 'lehre');
+
+		$le_mitarbeiter_result = $this->_ci->LehreinheitmitarbeiterModel->getByLeLektor($lehreinheit_id, $mitarbeiter_uid);
+
+		$le_mitarbeiter_data = array();
+		if (hasData($le_mitarbeiter_result))
+		{
+			$le_mitarbeiter_data = getData($le_mitarbeiter_result)[0];
+			$le_mitarbeiter_data->default_stundensatz = $defaultStundensatz;
+		}
+		$vertrag = $this->getLektorVertrag($lehreinheit_id, $mitarbeiter_uid);
+		$le_mitarbeiter_data->vertrag = $vertrag;
+		$this->terminateWithSuccess($le_mitarbeiter_data);
+	}
+
+	private function getLektorVertrag($lehreinheit_id = null, $mitarbeiter_uid = null)
+	{
+		$this->_ci->load->model('accounting/Vertrag_model', 'VertragModel');
+		$vertrag = $this->_ci->VertragModel->getVertrag($mitarbeiter_uid, $lehreinheit_id);
+		return hasData($vertrag) ? getData($vertrag)[0] : null;
+	}
+
+	private function checkLehrfachPermission($lehreinheit_id, $permissions)
+	{
+		$lehrfach_oe_kurzbz = $this->_ci->LehreinheitModel->getLehrfachOe($lehreinheit_id);
+
+		if (isError($lehrfach_oe_kurzbz))
+			$this->terminateWithError(getError($lehrfach_oe_kurzbz), self::ERROR_TYPE_GENERAL);
+
+		$lehrfach_oe_kurzbz = array('');
+		if (hasData($lehrfach_oe_kurzbz))
+			$lehrfach_oe_kurzbz = array_column(getData($lehrfach_oe_kurzbz), 'oe_kurzbz');
+
+
+		return $this->checkPermissionGenerel($permissions, $lehrfach_oe_kurzbz);
+	}
+
+	private function checkPermissionGenerel($permissions, $oe_array)
+	{
+		$hasPermission = false;
+		foreach ($permissions as $permission)
+		{
+			if ($this->_ci->permissionlib->isBerechtigtMultipleOe($permission, $oe_array, 'suid'))
+			{
+				$hasPermission = true;
+				break;
+			}
+		}
+
+		return $hasPermission;
+	}
+
+	private function checkPermission($lehreinheit_id, $permissions)
+	{
+		$result = $this->_ci->LehreinheitModel->getOes($lehreinheit_id);
+
+		if (isError($result))
+			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		$oe_array = [];
+		if (hasData($result))
+			$oe_array = getData($result);
+
+		return $this->checkPermissionGenerel($permissions, $oe_array);
+	}
+	public function cancelVertrag()
+	{
+		$vertrag_id = $this->input->post('vertrag_id');
+		$lehreinheit_id = $this->input->post('lehreinheit_id');
+		$mitarbeiter_uid = $this->input->post('mitarbeiter_uid');
+
+		$this->checkLehreinheit($lehreinheit_id);
+		$this->checkPermission($lehreinheit_id, array('admin', 'lehre/lehrauftrag_bestellen'));
+
+		if (is_null($vertrag_id) || !ctype_digit((string)$vertrag_id))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$vertrag_result = $this->_ci->VertragModel->load($vertrag_id);
+
+		if (!hasData($vertrag_result) || isError($vertrag_result))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		if (is_null($mitarbeiter_uid))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$mitarbeiter_result = $this->_ci->MitarbeiterModel->load($mitarbeiter_uid);
+
+		if (!hasData($mitarbeiter_result) || isError($mitarbeiter_result))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$result = $this->_ci->VertragModel->cancelVertrag($vertrag_id, $mitarbeiter_uid);
+
+		if (isError($result))
+			$this->terminateWithError(getError($result));
+
+		$this->terminateWithSuccess($result);
+	}
+
+	public function deletePerson()
+	{
+		$lehreinheit_id = $this->input->post('lehreinheit_id');
+		$mitarbeiter_uid = $this->input->post('mitarbeiter_uid');
+
+		$this->checkLehreinheit($lehreinheit_id);
+		$this->checkPermission($lehreinheit_id, array('admin', 'assistenz', 'lv-plan'));
+
+		if (is_null($mitarbeiter_uid))
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$mitarbeiter_result = $this->_ci->MitarbeiterModel->load($mitarbeiter_uid);
+
+		if (!hasData($mitarbeiter_result) || isError($mitarbeiter_result))
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$delete_result =$this->_ci->LehreinheitmitarbeiterModel->deleteLektorFromLe($lehreinheit_id, $mitarbeiter_uid);
+
+		if (isError($delete_result))
+			$this->terminateWithError(getError($delete_result));
+
+		$this->terminateWithSuccess($delete_result);
+	}
+
+	public function deleteLVPlan()
+	{
+		$lehreinheit_id = $this->input->post('lehreinheit_id');
+		$mitarbeiter_uid = $this->input->post('mitarbeiter_uid');
+
+		$this->checkLehreinheit($lehreinheit_id);
+		$this->checkPermission($lehreinheit_id, array('lv-plan/lektorentfernen'));
+
+		if (is_null($mitarbeiter_uid))
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$mitarbeiter_result = $this->_ci->MitarbeiterModel->load($mitarbeiter_uid);
+
+		if (!hasData($mitarbeiter_result) || isError($mitarbeiter_result))
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+
+		$delete_result = $this->_ci->StundenplandevModel->deleteLektorPlanning($lehreinheit_id, $mitarbeiter_uid);
+
+		if (isError($delete_result))
+			$this->terminateWithError(getError($delete_result));
+
+		$this->terminateWithSuccess($delete_result);
+	}
+
+	private function _setAuthUID()
+	{
+		$this->_uid = getAuthUID();
+
+		if (!$this->_uid)
+			show_error('User authentification failed');
+	}
+}
@@ -0,0 +1,121 @@
+<?php
+/**
+ * Copyright (C) 2025 fhcomplete.org
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+if (!defined('BASEPATH'))
+	exit('No direct script access allowed');
+
+class Setup extends FHCAPI_Controller
+{
+	private $_ci;
+	private $_uid;
+
+	public function __construct()
+	{
+		parent::__construct([
+			'getTabs' => ['admin:r', 'assistenz:r'],
+			'getStudiensemester' => ['admin:r', 'assistenz:r'],
+			'getSprache' => ['admin:r', 'assistenz:r'],
+			'getRaumtyp' => ['admin:r', 'assistenz:r'],
+			'getLehrform' => ['admin:r', 'assistenz:r'],
+		]);
+
+		$this->_ci = &get_instance();
+		$this->_setAuthUID();
+
+		$this->_ci->load->model('education/Lehreinheit_model', 'LehreinheitModel');
+		$this->_ci->load->model('education/Lehrveranstaltung_model', 'LehrveranstaltungModel');
+
+		$this->_ci->load->library('VariableLib', ['uid' => $this->_uid]);
+	}
+
+	public function getTabs()
+	{
+		$tabs['details'] = array (
+			'title' =>  'Details',
+			'component' => absoluteJsImportUrl('public/js/components/LVVerwaltung/Tabs/Details.js'),
+			'config' => []
+		);
+		$tabs['gruppen'] = array (
+			'title' =>  'Gruppen',
+			'component' => absoluteJsImportUrl('public/js/components/LVVerwaltung/Tabs/Gruppen.js'),
+			'config' => []
+		);
+		$tabs['lektor'] = array (
+			'title' =>  'LektorInnenzuteilung',
+			'component' => absoluteJsImportUrl('public/js/components/LVVerwaltung/Tabs/Lektor.js'),
+			'config' => []
+		);
+		$tabs['notiz'] = array (
+			'title' =>  'Notizen',
+			'component' => absoluteJsImportUrl('public/js/components/LVVerwaltung/Tabs/Notiz.js'),
+			'config' => []
+		);
+		$this->terminateWithSuccess($tabs);
+	}
+
+	public function getStudiensemester()
+	{
+		$this->_ci->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+		$this->_ci->StudiensemesterModel->addOrder('start', 'DESC');
+		$this->terminateWithSuccess(getData($this->_ci->StudiensemesterModel->load()));
+	}
+	public function getSprache()
+	{
+		$this->_ci->load->model('system/Sprache_model', 'SpracheModel');
+		$this->terminateWithSuccess(getData($this->_ci->SpracheModel->load()));
+	}
+
+	public function getRaumtyp()
+	{
+		$this->_ci->load->model('ressource/Raumtyp_model', 'RaumtypModel');
+		$this->_ci->RaumtypModel->addOrder('raumtyp_kurzbz');
+		$this->terminateWithSuccess(getData($this->_ci->RaumtypModel->loadWhere(array('aktiv' => true))));
+	}
+
+	public function getLehrform()
+	{
+		$language = $this->_getLanguageIndex();
+
+		$this->_ci->load->model('codex/lehrform_model', 'LehrformModel');
+
+		$this->_ci->LehrformModel->addSelect(
+			'*,
+			bezeichnung_kurz[('.$language.')] as bez_kurz,
+			bezeichnung_lang[('.$language.')] as bez
+			'
+		);
+		$this->terminateWithSuccess(getData($this->_ci->LehrformModel->load()));
+	}
+
+	private function _getLanguageIndex()
+	{
+		$this->_ci->load->model('system/Sprache_model', 'SpracheModel');
+		$this->_ci->SpracheModel->addSelect('index');
+		$result = $this->_ci->SpracheModel->loadWhere(array('sprache' => getUserLanguage()));
+
+		return hasData($result) ? getData($result)[0]->index : 1;
+	}
+
+	private function _setAuthUID()
+	{
+		$this->_uid = getAuthUID();
+
+		if (!$this->_uid)
+			show_error('User authentification failed');
+	}
+}
@@ -0,0 +1,117 @@
+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+class StgTree extends FHCAPI_Controller
+{
+	public function __construct()
+	{
+		$permissions = [];
+		$router = load_class('Router');
+		$permissions[$router->method] = ['admin:r', 'assistenz:r'];
+		parent::__construct($permissions);
+
+		$this->load->model('organisation/Studiengang_model', 'StudiengangModel');
+	}
+
+	public function _remap($method, $params = [])
+	{
+		if ($method == '' || $method == 'index')
+			return $this->getBase();
+
+		if (!$this->permissionlib->isBerechtigt('assistenz', 's', $method)
+			&& !$this->permissionlib->isBerechtigt('admin', 's', $method)
+		) {
+			return $this->_outputAuthError([$method => ['admin:r', 'assistenz:r']]);
+		}
+
+		return $this->getStudiengang($method);
+		show_404();
+	}
+
+	protected function getBase()
+	{
+		$this->StudiengangModel->addJoin('public.tbl_lehrverband v', 'studiengang_kz');
+
+		$this->StudiengangModel->addDistinct();
+		$this->StudiengangModel->addSelect("v.studiengang_kz AS link");
+		$this->StudiengangModel->addSelect(
+			"CONCAT(kurzbzlang, ' (', UPPER(CONCAT(typ, kurzbz)), ') - ', tbl_studiengang.bezeichnung) AS name",
+			false
+		);
+		$this->StudiengangModel->addSelect('erhalter_kz');
+		$this->StudiengangModel->addSelect('typ');
+		$this->StudiengangModel->addSelect('kurzbz');
+		$this->StudiengangModel->addSelect('studiengang_kz');
+		$this->StudiengangModel->addSelect('studiengang_kz AS stg_kz');
+
+		$this->StudiengangModel->addOrder('erhalter_kz');
+		$this->StudiengangModel->addOrder('typ');
+		$this->StudiengangModel->addOrder('kurzbz');
+
+		$stgs = $this->permissionlib->getSTG_isEntitledFor('admin') ?: [];
+		$stgs = array_merge($stgs, $this->permissionlib->getSTG_isEntitledFor('assistenz') ?: []);
+
+		if (!$stgs)
+			$this->terminateWithSuccess([]);
+
+		$this->StudiengangModel->db->where_in('studiengang_kz', $stgs);
+
+		$result = $this->StudiengangModel->loadWhere(['v.aktiv' => true]);
+
+		$list = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess($list);
+	}
+
+	protected function getStudiengang($studiengang_kz)
+	{
+		$link = $studiengang_kz . '/';
+
+		$this->StudiengangModel->addJoin('public.tbl_lehrverband v', 'studiengang_kz');
+
+		$this->StudiengangModel->addDistinct();
+		$this->StudiengangModel->addSelect("CONCAT(" . $this->StudiengangModel->escape($link) . ", semester) AS link", false);
+		$this->StudiengangModel->addSelect("CONCAT(UPPER(CONCAT(typ, kurzbz)), '-', semester, (SELECT CASE WHEN bezeichnung IS NULL OR bezeichnung='' THEN ''::TEXT ELSE CONCAT(' (', bezeichnung, ')') END FROM public.tbl_lehrverband WHERE studiengang_kz=v.studiengang_kz AND semester=v.semester ORDER BY verband, gruppe LIMIT 1)) AS name", false);
+		$this->StudiengangModel->addSelect("TRUE AS leaf", false);
+
+		$this->StudiengangModel->addSelect('semester');
+		$this->StudiengangModel->addSelect($this->StudiengangModel->escape($studiengang_kz) . '::integer AS stg_kz', false);
+
+		$this->StudiengangModel->addOrder('semester');
+
+		$result = $this->StudiengangModel->loadWhere([
+			'v.studiengang_kz' => $studiengang_kz,
+			'v.aktiv' => true
+		]);
+		$list = $this->getDataOrTerminateWithError($result);
+
+		$result = $this->StudiengangModel->load($studiengang_kz);
+		$result = $this->getDataOrTerminateWithError($result);
+		if ($result)
+		{
+			if (current($result)->mischform)
+			{
+				$this->load->model('organisation/Studienordnung_model', 'StudienordnungModel');
+
+				$this->StudienordnungModel->addDistinct();
+				$this->StudienordnungModel->addSelect("CONCAT(studiengang_kz, '/', p.orgform_kurzbz) AS link");
+				$this->StudienordnungModel->addSelect("p.orgform_kurzbz AS name");
+				$this->StudienordnungModel->addSelect("TRUE as leaf", false);
+
+				$this->StudienordnungModel->addJoin('lehre.tbl_studienplan p', 'studienordnung_id');
+
+				$result = $this->StudienordnungModel->loadWhere([
+					'aktiv' => true,
+					'studiengang_kz' => $studiengang_kz,
+					'p.orgform_kurzbz !=' => 'DDP'
+				]);
+				$result = $this->getDataOrTerminateWithError($result);
+
+				$list = array_merge($list, $result);
+			}
+		}
+
+		$this->terminateWithSuccess($list);
+	}
+}
@@ -0,0 +1,50 @@
+<?php
+
+if (!defined('BASEPATH'))
+	exit('No direct script access allowed');
+
+class Tags extends Tag_Controller
+{
+	const BERECHTIGUNG_KURZBZ = ['admin:rw', 'assistenz:r'];
+
+	public function __construct()
+	{
+		parent::__construct([
+			'getTag' => self::BERECHTIGUNG_KURZBZ,
+			'getTags' => self::BERECHTIGUNG_KURZBZ,
+			'addTag' => self::BERECHTIGUNG_KURZBZ,
+			'updateTag' => self::BERECHTIGUNG_KURZBZ,
+			'doneTag' => self::BERECHTIGUNG_KURZBZ,
+			'deleteTag' => self::BERECHTIGUNG_KURZBZ,
+			'updateLehre' => self::BERECHTIGUNG_KURZBZ,
+			'doneLehre' => self::BERECHTIGUNG_KURZBZ,
+			'deleteLehre' => self::BERECHTIGUNG_KURZBZ,
+		]);
+
+		$this->config->load('lvverwaltung');
+	}
+	public function getTag($readonly_tags = null)
+	{
+		parent::getTag($this->config->item('lvverwaltung_tags'));
+	}
+	public function getTags($tags = null)
+	{
+		parent::getTags($this->config->item('lvverwaltung_tags'));
+	}
+	public function addTag($withZuordnung = true, $updatable_tags = null)
+	{
+		parent::addTag(true, $this->config->item('lvverwaltung_tags'));
+	}
+	public function updateTag($updatable_tags = null)
+	{
+		parent::updateTag($this->config->item('lvverwaltung_tags'));
+	}
+	public function deleteTag($withZuordnung = true, $updatable_tags = null)
+	{
+		parent::deleteTag(true, $this->config->item('lvverwaltung_tags'));
+	}
+	public function doneTag($updatable_tags = null)
+	{
+		parent::doneTag($this->config->item('lvverwaltung_tags'));
+	}
+}
@@ -1,6 +1,5 @@
 <?php

-
 if (!defined('BASEPATH')) exit('No direct script access allowed');

 class Messages extends FHCAPI_Controller
@@ -14,13 +13,15 @@ class Messages extends FHCAPI_Controller
 			'getMsgVarsPrestudent' => ['admin:r', 'assistenz:r'],
 			'getMsgVarsLoggedInUser' => ['admin:r', 'assistenz:r'],
 			'getNameOfDefaultRecipient' => ['admin:r', 'assistenz:r'],
+			'getNameOfDefaultRecipients' => ['admin:r', 'assistenz:r'],
 			'sendMessage' => ['admin:r', 'assistenz:r'],
 			'deleteMessage' => ['admin:r', 'assistenz:r'],
-			'getVorlagentext' => ['admin:r', 'assistenz:r'],
+			'getDataVorlage' => ['admin:r', 'assistenz:r'],
 			'getPreviewText' => ['admin:r', 'assistenz:r'],
 			'getReplyData' => ['admin:r', 'assistenz:r'],
 			'getPersonId' => ['admin:r', 'assistenz:r'],
 			'getUid' => ['admin:r', 'assistenz:r'],
+			'getUids' => ['admin:r', 'assistenz:r'],
 		]);

 		//Load Models
@@ -37,7 +38,7 @@ class Messages extends FHCAPI_Controller

 		// Load language phrases
 		$this->loadPhrases([
-			'ui'
+			'ui', 'messages'
 		]);
 	}

@@ -52,11 +53,14 @@ class Messages extends FHCAPI_Controller

 		$result = $this->MessageModel->getMessagesForTable($id, $offset, $limit);

-		$data = $this->getDataOrTerminateWithError($result);
+		if (hasData($result))
+		{
+			$data = getData($result);
+			$this->addMeta('count', $data['count']);
+			$this->terminateWithSuccess($data['data']);
+		}

-		$this->addMeta('count', $data['count']);
-
-		$this->terminateWithSuccess($data['data']);
+		$this->terminateWithSuccess(array());
 	}

 	public function getVorlagen()
@@ -66,33 +70,23 @@ class Messages extends FHCAPI_Controller
 		$this->load->model('person/Benutzerfunktion_model', 'BenutzerfunktionModel');
 		$result = $this->BenutzerfunktionModel->getBenutzerfunktionByUid($uid, 'oezuordnung');

-		$data = $this->getDataOrTerminateWithError($result);
-		$oe_kurzbz = current($data);
+		if (hasData($result))
+		{
+			$this->load->model('system/Vorlage_model', 'VorlageModel');

-		$this->load->model('system/Vorlage_model', 'VorlageModel');
+			$data = getData($result);

-		$result = $this->VorlageModel->getAllVorlagenByOe($oe_kurzbz->oe_kurzbz);
-		$data = $this->getDataOrTerminateWithError($result);
+			$oe_kurzbz = array_column($data, 'oe_kurzbz');
+			$result = $this->VorlageModel->getAllVorlagenByOe($oe_kurzbz);

-		$this->terminateWithSuccess($data);
+			$this->terminateWithSuccess(hasData($result) ? getData($result) : array());
+		}

-		//If admin
-		$this->VorlageModel->addOrder('vorlage_kurzbz', 'ASC');
-		$result = $this->VorlageModel->loadWhere(
-			array(
-				'mimetype' => 'text/html'
-			));
-
-
-		$data = $this->getDataOrTerminateWithError($result);
-
-		$this->terminateWithSuccess($data);
+		$this->terminateWithSuccess(array());
 	}

-	public function getVorlagentext($vorlage_kurzbz)
+	public function getDataVorlage($vorlage_kurzbz)
 	{
-		//$this->terminateWithError("vor " . $vorlage_kurzbz, self::ERROR_TYPE_GENERAL);
-		//$studiengang_kz = 227; //TODO(Manu) dynamisieren NULL
 		$studiengang_kz = 0;
 		$this->load->model('system/Vorlagestudiengang_model', 'VorlagestudiengangModel');
 		$this->VorlagestudiengangModel->addOrder('version', 'DESC');
@@ -104,30 +98,53 @@ class Messages extends FHCAPI_Controller
 			]);

 		$data = $this->getDataOrTerminateWithError($result);
-
-		//not correct with Vorlage
 		$vorlage = current($data);
-
-		//$this->terminateWithSuccess($data);
-		$this->terminateWithSuccess($vorlage->text);
+		$this->terminateWithSuccess($vorlage);
 	}

-	public function getMessageVarsPerson($id, $typeId)
+	public function getMessageVarsPerson($typeId)
 	{
-		$person_id = ($typeId == 'mitarbeiter_uid') ? $this->_getPersonId($id, $typeId) : $id;
-		$result = $this->MessageModel->getMsgVarsDataByPersonId($person_id);
-		$data = $this->getDataOrTerminateWithError($result);
+		$ids = $this->input->post('ids');
+		$messageVarsPerson = [];

-		$this->terminateWithSuccess($data);
+		foreach ($ids as $id)
+		{
+			$person_id = ($typeId == 'mitarbeiter_uid') ? $this->_getPersonId($id, $typeId) : $id;
+			$result = $this->MessageModel->getMsgVarsDataByPersonId($person_id);
+			$data = $this->getDataOrTerminateWithError($result);
+			$messageVarsPerson[] = current($data);
+		}
+
+		$this->terminateWithSuccess($messageVarsPerson);
 	}

-	public function getMsgVarsPrestudent($id, $typeId)
+	public function getMsgVarsPrestudent($typeId)
 	{
-		$prestudent_id = ($typeId == 'uid') ? $this->_getPrestudentIdFromUid($id) : $id;
-		$result = $this->MessageModel->getMsgVarsDataByPrestudentId($prestudent_id);
-		$data = $this->getDataOrTerminateWithError($result);
+		$ids = $this->input->post('ids');
+		if(!is_array($ids)) {
+			$ids = array($ids);
+		}
+		$messageVarsPrestudent = [];

-		$this->terminateWithSuccess($data);
+		if($typeId == 'uid')
+		{
+			$prestudent_ids = [];
+			foreach ($ids as $id)
+			{
+				$prestudent_ids[] =  $this->_getPrestudentIdFromUid($id);
+			}
+		}
+		else
+			$prestudent_ids = $ids;
+
+		foreach ($prestudent_ids as $prestudent_id)
+		{
+			$result = $this->MessageModel->getMsgVarsDataByPrestudentId($prestudent_id);
+			$data = $this->getDataOrTerminateWithError($result);
+			$messageVarsPrestudent[] = current($data);
+		}
+
+		$this->terminateWithSuccess($messageVarsPrestudent);
 	}

 	public function getMsgVarsLoggedInUser()
@@ -138,27 +155,45 @@ class Messages extends FHCAPI_Controller
 		$this->terminateWithSuccess($data);
 	}

-	public function getNameOfDefaultRecipient($id, $type_id)
+	public function getNameOfDefaultRecipients($type_id)
 	{
-		$id = ($type_id != 'person_id') ? $this->_getPersonId($id, $type_id) : $id;
+		$ids = $this->input->post('ids');
+		if(!is_array($ids)) {
+			$ids = array($ids);
+		}
+		$recipients = [];
+
+		if (empty($ids)) {
+
+			throw new InvalidArgumentException($this->p->t('ui', 'errorMissingOrInvalidParameters', ['parameter'=> 'Id(s)']), self::ERROR_TYPE_GENERAL);
+		}

 		$this->load->model('person/Person_model', 'PersonModel');
+		if($type_id != 'person_id'){
+			foreach ($ids as $id)
+			{
+				$person_id =  $this->_getPersonId($id, $type_id);
+				$result = $this->PersonModel->load($person_id);
+				$data = $this->getDataOrTerminateWithError($result);
+				$name = current($data);
+				$recipients[$id] = $name->vorname . " " . $name->nachname;
+			}
+		}
+		else {
+			foreach ($ids as $id) {
+				$result = $this->PersonModel->load($id);
+				$data = $this->getDataOrTerminateWithError($result);
+				$name = current($data);
+				$recipients[$id] = $name->vorname . " " . $name->nachname;
+			}
+		}

-		$result = $this->PersonModel->load($id);
-		$data = $this->getDataOrTerminateWithError($result);
-		$name = current($data);
-
-		$this->terminateWithSuccess($name->vorname . " " . $name->nachname );
+		$this->terminateWithSuccess($recipients);
 	}

-	public function sendMessage($recipient_id)
+	public function sendMessage($typeId)
 	{
-		//has to be uid
-	//	$this->terminateWithError("uid", $recipient_id, self::ERROR_TYPE_GENERAL);
-
-		//default setting
-		$receiversPersonId = $this->_getPersonId($recipient_id, 'uid');
-
+		$resultReturn = [];
 		$uid = getAuthUID();
 		$this->load->model('person/Benutzer_model', 'BenutzerModel');
 		$result = $this->BenutzerModel->loadWhere(
@@ -196,49 +231,61 @@ class Messages extends FHCAPI_Controller
 		$body = $this->input->post('body');
 		$relationmessage_id = $this->input->post('relationmessage_id');

-		$typeId = $this->input->post('type_id');
-		$id = $this->input->post('id');
-
-		if($typeId == 'uid')
+		if (isset($_POST['ids']))
 		{
-			$prestudent_id = $this-> _getPrestudentIdFromUid($id);
-
-			//parseMessagetext for variables Prestudent
-			$result = $this->MessagesModel->parseMessageTextPrestudent($prestudent_id, $body);
-			$bodyParsed = $this->getDataOrTerminateWithError($result);
-		}
-		if($typeId == 'mitarbeiter_uid')
-		{
-			$person_id = $this->_getPersonId($id, $typeId);
-
-			$result = $this->MessagesModel->parseMessageTextPerson($person_id, $body);
-			$bodyParsed = $this->getDataOrTerminateWithError($result);
-			$this->terminateWithError($bodyParsed, self::ERROR_TYPE_GENERAL);
-
-		}
-		elseif($typeId == 'person_id')
-		{
-			$result = $this->MessagesModel->parseMessageTextPerson($id, $body);
-			$bodyParsed = $this->getDataOrTerminateWithError($result);
-		}
-		elseif($typeId == 'prestudent_id')
-		{
-		//	$this->terminateWithError("prestudent_id ", self::ERROR_TYPE_GENERAL);
-
-			$result = $this->MessagesModel->parseMessageTextPrestudent($id, $body);
-			$bodyParsed = $this->getDataOrTerminateWithError($result);
-		}
-		else
-		{
-			$this->terminateWithError("type_id " . $typeId . " not valid", self::ERROR_TYPE_GENERAL);
+			$ids = json_decode($_POST['ids']);
+			unset($_POST['ids']);
+			foreach ($data as $k => $v) {
+				$_POST[$k] = $v;
+			}
 		}

-		$result = $this->messagelib->sendMessageUser($receiversPersonId, $subject, $bodyParsed, $benutzer->person_id, null, $relationmessage_id);
+		if (!is_array($ids)) {
+			$ids = [$ids];
+		}

-		$this->terminateWithSuccess($result);
+		foreach ($ids as $id)
+		{
+			$receiversPersonId = $typeId == "person_id" ? $id : $this->_getPersonId($id, $typeId);
+
+			if($typeId == 'uid')
+			{
+				$prestudent_id = $this-> _getPrestudentIdFromUid($id);
+
+				$result = $this->MessagesModel->parseMessageTextPrestudent($prestudent_id, $body);
+				$bodyParsed = $this->getDataOrTerminateWithError($result);
+			}
+			if($typeId == 'mitarbeiter_uid')
+			{
+				$person_id = $this->_getPersonId($id, $typeId);
+
+				$result = $this->MessagesModel->parseMessageTextPerson($person_id, $body);
+				$bodyParsed = $this->getDataOrTerminateWithError($result);
+			}
+			elseif($typeId == 'person_id')
+			{
+				$result = $this->MessagesModel->parseMessageTextPerson($id, $body);
+				$bodyParsed = $this->getDataOrTerminateWithError($result);
+			}
+			elseif($typeId == 'prestudent_id')
+			{
+				$result = $this->MessagesModel->parseMessageTextPrestudent($id, $body);
+				$bodyParsed = $this->getDataOrTerminateWithError($result);
+			}
+			else
+			{
+				$this->terminateWithError($this->p->t('messages', 'error_missingLogic', ['type'=> $typeId]), self::ERROR_TYPE_GENERAL);
+			}
+
+			$result =$this->messagelib->sendMessageUser($receiversPersonId, $subject, $bodyParsed, $benutzer->person_id, null, $relationmessage_id);
+			$data = $this->getDataOrTerminateWithError($result);
+			$resultReturn[] = current($data);
+
+		}
+		$this->terminateWithSuccess($resultReturn);
 	}

-	public function getPreviewText($id, $type_id)
+	public function getPreviewText($type_id)
 	{
 		if (isset($_POST['data']))
 		{
@@ -246,39 +293,60 @@ class Messages extends FHCAPI_Controller
 			unset($_POST['data']);
 		}
 		else
-			$this->terminateWithError("Textbody missing ", self::ERROR_TYPE_GENERAL);
+			$this->terminateWithError($this->p->t('messages', 'errorMissingOrInvalidParameters', ['parameter'=> "Textbody"]), self::ERROR_TYPE_GENERAL);

-		switch($type_id)
+		if (isset($_POST['ids']))
 		{
-			case 'uid':
-				$prestudent_id = $this->_getPrestudentIdFromUid($id);
-				$result = $this->MessagesModel->parseMessageTextPrestudent($prestudent_id, $data);
-				break;
-			case 'prestudent_id':
-				$result = $this->MessagesModel->parseMessageTextPrestudent($id, $data);
-				break;
-			case 'person_id':
-				$result = $this->MessagesModel->parseMessageTextPerson($id, $data);
-				break;
-			case 'mitarbeiter_uid':
-				{
-					$person_id = $this->_getPersonId($id, $type_id);
-					$result = $this->MessagesModel->parseMessageTextPerson($person_id, $data);
-				}
-				break;
-			default:
-				$this->terminateWithError("MESSAGES::getPreviewText logic for type_id " . $type_id . " not defined yet", self::ERROR_TYPE_GENERAL);
-				break;
+			$ids = json_decode($_POST['ids']);
+			if(!is_array($ids))
+			{
+				$ids = array($ids);
+			}
+			unset($_POST['ids']);
 		}
+		else
+			$this->terminateWithError($this->p->t('ui', 'errorMissingOrInvalidParameters', ['parameter'=> 'Id(s)']), self::ERROR_TYPE_GENERAL);

-		$bodyParsed = $this->getDataOrTerminateWithError($result);
+		$bodyParsed = [];
+
+		foreach ($ids as $id)
+		{
+			switch($type_id)
+			{
+				case 'uid':
+					$prestudent_id = $this->_getPrestudentIdFromUid($id);
+					$result = $this->MessagesModel->parseMessageTextPrestudent($prestudent_id, $data);
+					$bodyParsed[$id] = $this->getDataOrTerminateWithError($result);
+					break;
+				case 'prestudent_id':
+					$result = $this->MessagesModel->parseMessageTextPrestudent($id, $data);
+					$bodyParsed[$id] = $this->getDataOrTerminateWithError($result);
+					break;
+				case 'person_id':
+					$result = $this->MessagesModel->parseMessageTextPerson($id, $data);
+					$bodyParsed[$id] = $this->getDataOrTerminateWithError($result);
+					break;
+				case 'mitarbeiter_uid':
+					{
+						$person_id = $this->_getPersonId($id, $type_id);
+						$result = $this->MessagesModel->parseMessageTextPerson($person_id, $data);
+						$bodyParsed[$id] = $this->getDataOrTerminateWithError($result);
+					}
+					break;
+				default:
+					$this->terminateWithError($this->p->t('messages', 'error_missingLogic', ['type'=> $type_id]), self::ERROR_TYPE_GENERAL);
+					break;
+			}
+		}

 		$this->terminateWithSuccess($bodyParsed);
 	}

 	public function getReplyData($messageId)
 	{
-		//TODO(Manu) validation of messageId: if number
+		if (!is_numeric($messageId)) {
+			$this->terminateWithError($this->p->t('ui', 'error_valueNotNumeric', ['value'=> 'Message ID']), self::ERROR_TYPE_GENERAL);
+		}

 		$this->MessageModel->addSelect('public.tbl_msg_message.*');
 		$this->MessageModel->addSelect('r.*');
@@ -301,7 +369,6 @@ class Messages extends FHCAPI_Controller
 		$replyBody = $this->_getReplyBody($body, $dataMessage[0]->nachname, $dataMessage[0]->vorname, $dataMessage[0]->insertamum);

 		$dataMessage[0]->replyBody = $replyBody;
-		$dataMessage[0]->rest = "Help Manu";
 		$dataMessage[0]->replySubject = $prefix . $subject;

 		$this->terminateWithSuccess($dataMessage);
@@ -349,6 +416,11 @@ class Messages extends FHCAPI_Controller
 				['prestudent_id' => $id]
 			);
 		}
+		else
+		{
+			$this->terminateWithError($this->p->t('messages', 'error_missingLogic', ['type'=> $typeId]), self::ERROR_TYPE_GENERAL);
+		}
+

 		$data = $this->getDataOrTerminateWithError($result);
 		$person = current($data);
@@ -356,8 +428,11 @@ class Messages extends FHCAPI_Controller
 		$this->terminateWithSuccess($person->person_id);
 	}

-	public function getUid($id, $typeId)
+	public function getUids($typeId)
 	{
+		$ids = $this->input->post('ids');
+		$benutzerIds = [];
+
 		if (!$typeId)
 		{
 			$this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Type ID']), self::ERROR_TYPE_GENERAL);
@@ -365,39 +440,50 @@ class Messages extends FHCAPI_Controller
 		elseif ($typeId == 'person_id')
 		{
 			$this->load->model('person/Benutzer_model', 'BenutzerModel');
-			$result = $this->BenutzerModel->loadWhere(
-				['person_id' => $id]
-			);
+			foreach ($ids as $id)
+			{
+				$result = $this->BenutzerModel->loadWhere(
+					['person_id' => $id]
+				);
+				$data = $this->getDataOrTerminateWithError($result);
+				$benutzer = current($data);
+
+				$benutzerIds[$id] = $benutzer->uid;
+			}
 		}
 		elseif($typeId == 'prestudent_id')
 		{
 			$this->load->model('crm/Prestudent_model', 'PrestudentModel');
-			$result = $this->PrestudentModel->loadWhere(
-				['prestudent_id' => $id]
-			);
+			foreach ($ids as $id)
+			{
+				$result = $this->PrestudentModel->loadWhere(
+					['prestudent_id' => $id]
+				);

-			$data = $this->getDataOrTerminateWithError($result);
-			$person = current($data);
-			$person_id = $person->person_id;
+				$data = $this->getDataOrTerminateWithError($result);
+				$person = current($data);
+				$person_id = $person->person_id;

-			$this->load->model('person/Benutzer_model', 'BenutzerModel');
-			$result = $this->BenutzerModel->loadWhere(
-				['person_id' => $person_id]
-			);
+				$this->load->model('person/Benutzer_model', 'BenutzerModel');
+				$result = $this->BenutzerModel->loadWhere(
+					['person_id' => $person_id]
+				);
+				$data = $this->getDataOrTerminateWithError($result);
+				$benutzer = current($data);
+
+				$benutzerIds[$id] = $benutzer->uid;
+			}
 		}
 		elseif($typeId == 'uid' || $typeId == 'mitarbeiter_uid')
 		{
-			$this->terminateWithSuccess($id);
+			$this->terminateWithSuccess($ids);
 		}
 		else
 		{
-			$this->terminateWithError("MESSAGES::getUID logic for type_id " . $typeId . " not defined yet", self::ERROR_TYPE_GENERAL);
+			$this->terminateWithError($this->p->t('messages', 'error_missingLogic', ['type'=> $typeId]), self::ERROR_TYPE_GENERAL);
 		}

-		$data = $this->getDataOrTerminateWithError($result);
-		$benutzer = current($data);
-
-		$this->terminateWithSuccess($benutzer->uid);
+		$this->terminateWithSuccess($benutzerIds);
 	}

 	private function _getPersonId($id, $typeId)
@@ -416,11 +502,16 @@ class Messages extends FHCAPI_Controller
 				['prestudent_id' => $id]
 			);
 		}
+		else
+		{
+			$this->terminateWithError($this->p->t('messages', 'error_missingLogic', ['type'=> $typeId]), self::ERROR_TYPE_GENERAL);
+		}
+

 		$data = $this->getDataOrTerminateWithError($result);
 		if (count($data) < 1)
 		{
-			$this->terminateWithError('Error: Messages API no person_id found.');
+			$this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Person ID']), self::ERROR_TYPE_GENERAL);
 		}
 		$person = current($data);

@@ -429,7 +520,6 @@ class Messages extends FHCAPI_Controller

 	private function _getPrestudentIdFromUid($uid)
 	{
-	//	$this->terminateWithError($uid, self::ERROR_TYPE_GENERAL);
 		$this->load->model('crm/Student_model', 'StudentModel');
 		$result = $this->StudentModel->loadWhere(
 			['student_uid' => $uid]
@@ -438,7 +528,7 @@ class Messages extends FHCAPI_Controller
 		$data = $this->getDataOrTerminateWithError($result);
 		if (count($data) < 1)
 		{
-			$this->terminateWithError('Error: Messages API no prestudent_id found.');
+			$this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Prestudent ID']), self::ERROR_TYPE_GENERAL);
 		}
 		$student = current($data);

@@ -463,4 +553,4 @@ class Messages extends FHCAPI_Controller
 			date_format(date_create($sentDate), 'd.m.Y H:i'), $receiverName, $receiverSurname, $body
 		);
 	}
-}
+}
@@ -0,0 +1,21 @@
+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+class NotizLehreinheit extends Notiz_Controller
+{
+	public function __construct()
+	{
+		parent::__construct([
+			'getUid' => ['admin:r', 'assistenz:r'],
+			'getNotizen' => ['admin:r', 'assistenz:r'],
+			'loadNotiz' => ['admin:r', 'assistenz:r'],
+			'addNewNotiz' => ['admin:rw', 'assistenz:rw'],
+			'updateNotiz' => ['admin:rw', 'assistenz:rw'],
+			'deleteNotiz' => ['admin:rw', 'assistenz:rw'],
+			'loadDokumente' => ['admin:r', 'assistenz:r'],
+			'getMitarbeiter' => ['admin:r', 'assistenz:r'],
+			'isBerechtigt' => ['admin:r', 'assistenz:r'],
+		]);
+	}
+}
@@ -0,0 +1,69 @@
+<?php
+/**
+ * FH-Complete
+ *
+ * @package        FHC-API
+ * @author        FHC-Team
+ * @copyright    Copyright (c) 2016, fhcomplete.org
+ * @license        GPLv3
+ * @link        http://fhcomplete.org
+ * @since        Version 1.0
+ * @filesource
+ */
+// ------------------------------------------------------------------------
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+class Studienplan extends FHCAPI_Controller
+{
+	public function __construct()
+	{
+		// TODO(chris): access!
+		parent::__construct([
+			'getBySemester' => self::PERM_LOGGED
+		]);
+	}
+
+	public function getBySemester()
+	{
+		$this->load->model('organisation/Studienplan_model', 'StudienplanModel');
+
+		$studiengang_kz = $this->input->get('studiengang_kz');
+		$studiensemester_kurzbz = $this->input->get('studiensemester_kurzbz');
+		$ausbildungssemester = $this->input->get('ausbildungssemester') ?: null;
+		$orgform_kurzbz = $this->input->get('orgform_kurzbz') ?: null;
+
+		if (!$studiengang_kz || !is_numeric($studiengang_kz))
+			return $this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Studiengangskennzahl']), self::ERROR_TYPE_GENERAL);
+
+		if (!$studiensemester_kurzbz)
+			return $this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Studiensemester']), self::ERROR_TYPE_GENERAL);
+
+		if (isset($ausbildungssemester) && !is_numeric($ausbildungssemester))
+			return $this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Ausbildungssemester']), self::ERROR_TYPE_GENERAL);
+
+
+		//~ $this->load->library('form_validation');
+		
+		//~ $this->form_validation->set_rules('studiengang_kz', 'StudiengangKz', 'required|numeric');
+		//~ $this->form_validation->set_rules('studiensemester_kurzbz', 'StudiensemesterKurbz', 'required');
+		//~ $this->form_validation->set_rules('ausbildungssemester', 'Ausbildungssemester', 'numeric');
+
+		//~ if (!$this->form_validation->run())
+		//~ {
+			//~ $this->addMeta('fail2', 'fail2');
+			//~ return $this->terminateWithValidationErrors($this->form_validation->error_array());
+		//~ }
+
+
+		$this->addMeta('stg_kz', $studiengang_kz);
+		$this->addMeta('sem', $studiensemester_kurzbz);
+		$this->addMeta('sem2', $ausbildungssemester);
+		$this->addMeta('org', $orgform_kurzbz);
+
+		$result = $this->StudienplanModel->getStudienplaeneBySemester($studiengang_kz, $studiensemester_kurzbz, $ausbildungssemester, $orgform_kurzbz);
+		if (isError($result)) $this->terminateWithError(getError($result), self::ERROR_TYPE_DB);
+
+		$this->terminateWithSuccess(hasData($result) ? getData($result) : []);
+	}
+}
@@ -25,7 +25,8 @@ class Studiensemester extends FHCAPI_Controller
 			array(
 				'getAll' => self::PERM_LOGGED,
 				'getAktNext' => self::PERM_LOGGED,
-				'getStudienjahrByStudiensemester' => self::PERM_LOGGED
+				'getStudienjahrByStudiensemester' => self::PERM_LOGGED,
+				'getAllStudiensemesterAndAktOrNext' => self::PERM_LOGGED
 			)
 		);
 		// Load model StudiensemesterModel
@@ -152,4 +153,17 @@ class Studiensemester extends FHCAPI_Controller

 		$this->terminateWithSuccess((getData(success($studienjahrObj))));
 	}
+
+	public function getAllStudiensemesterAndAktOrNext() {
+		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+
+		$this->StudiensemesterModel->addOrder("start", "DESC");
+		$result = $this->StudiensemesterModel->getAktOrNextSemester();
+		$aktuell = getData($result)[0];
+		$this->StudiensemesterModel->addSelect('*');
+		$result = $this->StudiensemesterModel->load();
+		$studiensemester = getData($result);
+		
+		$this->terminateWithSuccess(array($studiensemester, $aktuell));
+	}
 }
@@ -20,8 +20,6 @@ class Abschlusspruefung extends FHCAPI_Controller
 			'getBeurteilungen' => ['admin:rw', 'assistenz:rw'],
 			'getAkadGrade' => ['admin:rw', 'assistenz:rw'],
 			'getMitarbeiter' => ['admin:rw', 'assistenz:rw'],
-			'getAllMitarbeiter' => ['admin:rw', 'assistenz:rw'],
-			'getAllPersons' => ['admin:rw', 'assistenz:rw'],
 			'getPruefer' => ['admin:rw', 'assistenz:rw'],
 			'getTypStudiengang' => ['admin:rw', 'assistenz:rw'],
 			'checkForExistingExams' => ['admin:rw', 'assistenz:rw'],
@@ -102,35 +100,45 @@ class Abschlusspruefung extends FHCAPI_Controller
 	{
 		$abschlusspruefung_id = $this->input->post('id');

-		$this->AbschlusspruefungModel->addSelect('lehre.tbl_abschlusspruefung.*');
-		$this->AbschlusspruefungModel->addSelect("
-			CASE
-				WHEN pruefer1 IS NOT NULL
-				THEN CONCAT(p1.nachname, ' ', p1.vorname, COALESCE(' ' || p1.titelpre, ''))
-				ELSE NULL
-   			 END AS p1
-   		");
-		$this->AbschlusspruefungModel->addSelect("
-			CASE
-				WHEN pruefer2 IS NOT NULL
-				THEN CONCAT(p2.nachname, ' ', p2.vorname, COALESCE(' ' || p2.titelpre, ''))
-				ELSE NULL
-   			 END AS p2
-		");
-		$this->AbschlusspruefungModel->addSelect("
-			CASE
-				WHEN pruefer3 IS NOT NULL
-				THEN CONCAT(p3.nachname, ' ', p3.vorname, COALESCE(' ' || p3.titelpre, ''))
-				ELSE NULL
-   			 END AS p3
-		");
-		$this->AbschlusspruefungModel->addSelect("
-			CASE
-				WHEN vorsitz IS NOT NULL
-				THEN CONCAT(pv.nachname, ' ', pv.vorname, COALESCE(' ' || pv.titelpre, ''), ' (', ben.uid , ')' )
-				ELSE NULL
-   			 END AS pv
-		");
+		$this->AbschlusspruefungModel->addSelect(
+			'lehre.tbl_abschlusspruefung.*,
+			p1.person_id AS p1_person_id, p1.vorname AS p1_vorname, p1.nachname AS p1_nachname,
+			p1.titelpre AS p1_titelpre, p1.titelpost AS p1_titelpost,
+			p2.person_id AS p2_person_id, p2.vorname AS p2_vorname, p2.nachname AS p2_nachname,
+			p2.titelpre AS p2_titelpre, p2.titelpost AS p2_titelpost,
+			p3.person_id AS p3_person_id, p3.vorname AS p3_vorname, p3.nachname AS p3_nachname,
+			p3.titelpre AS p3_titelpre, p3.titelpost AS p3_titelpost,
+			pv.person_id AS pv_person_id, pv.vorname AS pv_vorname, pv.nachname AS pv_nachname,
+			pv.titelpre AS pv_titelpre, pv.titelpost AS pv_titelpost, ben.uid AS pv_uid'
+		);
+		//~ $this->AbschlusspruefungModel->addSelect("
+			//~ CASE
+				//~ WHEN pruefer1 IS NOT NULL
+				//~ THEN CONCAT(p1.nachname, ' ', p1.vorname, COALESCE(' ' || p1.titelpre, ''))
+				//~ ELSE NULL
+   			 //~ END AS p1
+   		//~ ");
+		//~ $this->AbschlusspruefungModel->addSelect("
+			//~ CASE
+				//~ WHEN pruefer2 IS NOT NULL
+				//~ THEN CONCAT(p2.nachname, ' ', p2.vorname, COALESCE(' ' || p2.titelpre, ''))
+				//~ ELSE NULL
+   			 //~ END AS p2
+		//~ ");
+		//~ $this->AbschlusspruefungModel->addSelect("
+			//~ CASE
+				//~ WHEN pruefer3 IS NOT NULL
+				//~ THEN CONCAT(p3.nachname, ' ', p3.vorname, COALESCE(' ' || p3.titelpre, ''))
+				//~ ELSE NULL
+   			 //~ END AS p3
+		//~ ");
+		//~ $this->AbschlusspruefungModel->addSelect("
+			//~ CASE
+				//~ WHEN vorsitz IS NOT NULL
+				//~ THEN CONCAT(pv.nachname, ' ', pv.vorname, COALESCE(' ' || pv.titelpre, ''), ' (', ben.uid , ')' )
+				//~ ELSE NULL
+   			 //~ END AS pv
+		//~ ");
 		$this->AbschlusspruefungModel->addJoin('public.tbl_benutzer ben', 'ON (ben.uid = lehre.tbl_abschlusspruefung.vorsitz)', 'LEFT');
 		$this->AbschlusspruefungModel->addJoin('public.tbl_person pv', 'ON (pv.person_id = ben.person_id)', 'LEFT');
 		$this->AbschlusspruefungModel->addJoin('public.tbl_person p1', 'ON (p1.person_id = lehre.tbl_abschlusspruefung.pruefer1)', 'LEFT');
@@ -220,8 +228,10 @@ class Abschlusspruefung extends FHCAPI_Controller
 		$this->terminateWithSuccess($typStudiengang);
 	}

-	public function getMitarbeiter($searchString)
+	public function getMitarbeiter()
 	{
+		$searchString = $this->input->get('searchString') ?? '';
+
 		$this->load->model('ressource/Mitarbeiter_model', 'MitarbeiterModel');

 		$result = $this->MitarbeiterModel->searchMitarbeiter($searchString, 'mitAkadGrad');
@@ -232,8 +242,10 @@ class Abschlusspruefung extends FHCAPI_Controller
 		$this->terminateWithSuccess($result ?: []);
 	}

-	public function getPruefer($searchString)
+	public function getPruefer()
 	{
+		$searchString = $this->input->get('searchString') ?? '';
+
 		$this->load->model('ressource/Mitarbeiter_model', 'MitarbeiterModel');

 		$result = $this->MitarbeiterModel->searchMitarbeiter($searchString, 'ohneMaUid');
@@ -444,58 +456,4 @@ class Abschlusspruefung extends FHCAPI_Controller
 		}
 		$this->terminateWithSuccess('step3');
 	}
-
-	/*
-	* returns list of all Mitarbeiter
-	* as key value list to be used in select or autocomplete
-	*/
-	public function getAllMitarbeiter()
-	{
-		$this->load->model('ressource/Mitarbeiter_model', 'MitarbeiterModel');
-
-		$sql = "
-			SELECT
-			    ma.mitarbeiter_uid as mitarbeiter_uid,
-				CONCAT(p.nachname, ' ', p.vorname, ' (', ma.mitarbeiter_uid, ')') as label
-			FROM
-			  public.tbl_mitarbeiter ma
-			  JOIN public.tbl_benutzer bn ON (bn.uid = ma.mitarbeiter_uid)
-			  JOIN public.tbl_person p ON (p.person_id = bn.person_id)
-			ORDER BY
-			p.nachname ASC
-			";
-
-		$result = $this->MitarbeiterModel->execReadOnlyQuery($sql);
-		$data = $this->getDataOrTerminateWithError($result);
-
-		$this->terminateWithSuccess($data);
-	}
-
-	/*
-	* returns list of all Persons
-	* as key value list to be used in select or autocomplete
-	*/
-	public function getAllPersons()
-	{
-		$this->load->model('person/Person_model', 'PersonModel');
-
-		$sql = "
-			SELECT
-			    p.vorname, p.nachname, p.person_id,
-				CONCAT(p.nachname, ' ', p.vorname) as label
-			FROM
-			  public.tbl_person p
-			 -- JOIN public.tbl_benutzer bn ON (p.person_id = bn.person_id)
-			  -- and bn.aktiv = 'true'
-			ORDER BY
-			p.nachname ASC
-			";
-
-		//TODO(manu) check if filter active benutzer
-
-		$result = $this->PersonModel->execReadOnlyQuery($sql);
-		$data = $this->getDataOrTerminateWithError($result);
-
-		$this->terminateWithSuccess($data);
-	}
 }
@@ -39,7 +39,7 @@ class Archiv extends FHCAPI_Controller
 			'archive' => ['admin:w', 'assistenz:w'],
 			'download' => ['admin:w', 'assistenz:w'],
 			'update' => ['admin:w'],
-			'delete' => ['admin:w', 'assistenz:w']
+			'delete' => ['admin:w', 'assistenz:w'],
 		]);

 		// Load models
@@ -107,13 +107,9 @@ class Archiv extends FHCAPI_Controller

 		$result = $this->AkteModel->load($akte_id);

-
 		if (!hasData($result)) $this->terminateWithError('Akte not found');

-		$data = $this->getDataOrTerminateWithError($result);
-
 		$data = getData($result)[0];
-		//$this->addMeta("daa", $data->inhalt);

 		$fileObj = new stdClass();
 		if (isset($data->inhalt) && $data->inhalt != '')
@@ -133,12 +129,7 @@ class Archiv extends FHCAPI_Controller
 			//header("Content-type: $data->mimetype");
 			header('Content-Disposition: attachment; filename="'.$data->titel.'"');
 			readfile($filename);
-			//echo base64_decode($data->inhalt);
 			die();
-			//~ $fileObj->file = $data->inhalt;
-			//~ $fileObj->name = $data->titel;
-			//~ $fileObj->mimetype = $data->mimetype;
-			//~ $fileObj->disposition = 'attachment';
 		}
 		else
 		{
@@ -146,12 +137,6 @@ class Archiv extends FHCAPI_Controller

 			$result = $this->aktelib->get($akte_id);
 		}
-
-	/*	$fileObj->filename
-	 * 	$fileObj->file
-	 * 	$fileObj->name
-	 * 	$fileObj->mimetype
-	 * 	$fileObj->disposition*/
 	}

 	/**
@@ -298,7 +298,7 @@ class Aufnahmetermine extends FHCAPI_Controller
 		$reihungstestangetreten =
 			(isset($formData['reihungstestangetreten']) && !empty($formData['reihungstestangetreten']))
 				? $formData['reihungstestangetreten']
-				: null;
+				: false;
 		$aufnahmegruppe_kurzbz =
 			(isset($formData['aufnahmegruppe_kurzbz']) && !empty($formData['aufnahmegruppe_kurzbz']))
 				? $formData['aufnahmegruppe_kurzbz']
@@ -33,6 +33,9 @@ class Config extends FHCAPI_Controller
 	{
 		// TODO(chris): permissions
 		parent::__construct([
+			'get' => ['admin:r', 'assistenz:r'],
+			'set' => ['admin:r', 'assistenz:r'],
+			'filter' => ['admin:r', 'assistenz:r'],
 			'student' => ['admin:r', 'assistenz:r'],
 			'students' => ['admin:r', 'assistenz:r']
 		]);
@@ -45,13 +48,255 @@ class Config extends FHCAPI_Controller
 			'lehre',
 			'stv',
 			'konto',
-			'abschlusspruefung'
+			'abschlusspruefung',
+			'projektarbeit'
 		]);

 		// Load Config
 		$this->load->config('stv');
 	}

+	/**
+	 * get App config
+	 */
+	public function get()
+	{
+		$this->load->model('system/Variable_model', 'VariableModel');
+		$this->load->config('stv');
+
+		$config = [];
+
+		#number_displayed_past_studiensemester
+		$result = $this->VariableModel->getVariables(getAuthUID(), ['number_displayed_past_studiensemester']);
+		$data = $this->getDataOrTerminateWithError($result);
+
+		$number_displayed_past_studiensemester_default = $this->config->item('number_displayed_past_studiensemester_default');
+
+		$config['number_displayed_past_studiensemester'] = [
+			"type" => "number",
+			"label" => $this->p->t('stv', 'settings_no_displayed_past_sem'),
+			"value" => $data['number_displayed_past_studiensemester']
+				?? $number_displayed_past_studiensemester_default
+		];
+
+		#font_size
+		$result = $this->VariableModel->getVariables(getAuthUID(), ['stv_font_size']);
+		$data = $this->getDataOrTerminateWithError($result);
+		$config['font_size'] = [
+			"type" => "select",
+			"label" => $this->p->t('stv', 'settings_fontsize'),
+			"value" => $data['stv_font_size'] ?? "fs_normal",
+			"options" => [
+				"fs_xx-small" => $this->p->t('stv', 'settings_fontsize_xx-small'),
+				"fs_x-small" => $this->p->t('stv', 'settings_fontsize_x-small'),
+				"fs_small" => $this->p->t('stv', 'settings_fontsize_small'),
+				"fs_normal" => $this->p->t('stv', 'settings_fontsize_normal'),
+				"fs_big" => $this->p->t('stv', 'settings_fontsize_big'),
+				"fs_huge" => $this->p->t('stv', 'settings_fontsize_huge')
+			]
+		];
+
+		#others
+		Events::trigger('stv_config_get', function & () use (&$config) {
+			return $config;
+		});
+
+		$this->terminateWithSuccess($config);
+	}
+
+	/**
+	 * set App config
+	 */
+	public function set()
+	{
+		$this->load->model('system/Variable_model', 'VariableModel');
+		$this->load->library('form_validation');
+
+		$this->form_validation->set_rules(
+			'number_displayed_past_studiensemester',
+			$this->p->t('stv', 'settings_no_displayed_past_sem'),
+			'required|integer'
+		);
+		$this->form_validation->set_rules(
+			'font_size',
+			$this->p->t('stv', 'settings_fontsize'),
+			'required|in_list[fs_xx-small,fs_x-small,fs_small,fs_normal,fs_big,fs_huge]'
+		);
+
+		Events::trigger('stv_config_validation', $this->form_validation);
+
+		if (!$this->form_validation->run())
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+
+
+		$this->VariableModel->setVariable(
+			getAuthUID(),
+			'number_displayed_past_studiensemester',
+			$this->input->post('number_displayed_past_studiensemester')
+		);
+		$this->VariableModel->setVariable(
+			getAuthUID(),
+			'stv_font_size',
+			$this->input->post('font_size')
+		);
+
+		Events::trigger('stv_config_set', $this->input);
+
+		$this->terminateWithSuccess();
+	}
+	
+	/*
+	 * Get the config for the student filters
+	 *
+	 * @return void
+	 */
+	public function filter()
+	{
+		$this->load->library('VariableLib', ['uid' => getAuthUID()]);
+
+		$this->load->model('crm/Buchungstyp_model', 'BuchungstypModel');
+
+		$this->BuchungstypModel->addOrder('beschreibung');
+		
+		$result = $this->BuchungstypModel->load();
+
+		$buchungstyp_kurzbz = $this->getDataOrTerminateWithError($result);
+		$buchungstyp_kurzbz_plus_all = array_merge([[
+			'buchungstyp_kurzbz' => 'all',
+			'beschreibung' => $this->p->t('stv', 'konto_all_types')
+		]], $buchungstyp_kurzbz);
+
+		$this->load->model('crm/Statusgrund_model', 'StatusgrundModel');
+
+		$result = $this->StatusgrundModel->getAktiveGruende();
+		
+		$statusgruende = $this->getDataOrTerminateWithError($result);
+
+		$result = [];
+
+		$result[] = [
+			'id' => 'filter_konto_count_0',
+			'label' => $this->p->t('stv', 'filter_konto_count_0'),
+			'type' => 'konto',
+			'fixed' => [
+				'missing' => true,
+				'usestdsem' => true
+			],
+			'dynamic' => [
+				'buchungstyp_kurzbz' => [
+					'type' => 'select',
+					'values' => $buchungstyp_kurzbz,
+					'value_key' => 'buchungstyp_kurzbz',
+					'label_key' => 'beschreibung'
+				]
+			]
+		];
+		$result[] = [
+			'id' => 'filter_konto_missing_counter',
+			'label' => $this->p->t('stv', 'filter_konto_missing_counter'),
+			'type' => 'konto_counter',
+			'dynamic' => [
+				'buchungstyp_kurzbz' => [
+					'type' => 'select',
+					'values' => $buchungstyp_kurzbz_plus_all,
+					'value_key' => 'buchungstyp_kurzbz',
+					'label_key' => 'beschreibung'
+				],
+				'samestg' => [
+					'type' => 'bool',
+					'label' => $this->p->t('stv', 'filter_konto_samestg'),
+					'default' => $this->variablelib->getVar('kontofilterstg') == 'true'
+				]
+			]
+		];
+		$result[] = [
+			'id' => 'filter_documents',
+			'label' => $this->p->t('stv', 'filter_documents'),
+			'type' => 'documents'
+		];
+		$result[] = [
+			'id' => 'filter_konto_missing_counter_past',
+			'label' => $this->p->t('stv', 'filter_konto_missing_counter_past'),
+			'type' => 'konto_counter',
+			'fixed' => [
+				'past' => true
+			],
+			'dynamic' => [
+				'buchungstyp_kurzbz' => [
+					'type' => 'select',
+					'values' => $buchungstyp_kurzbz_plus_all,
+					'value_key' => 'buchungstyp_kurzbz',
+					'label_key' => 'beschreibung'
+				],
+				'samestg' => [
+					'type' => 'bool',
+					'label' => $this->p->t('stv', 'filter_konto_samestg'),
+					'default' => $this->variablelib->getVar('kontofilterstg') == 'true'
+				]
+			]
+		];
+		$result[] = [
+			'id' => 'filter_konto_missing_studiengebuehr',
+			'label' => $this->p->t('stv', 'filter_konto_missing_studiengebuehr'),
+			'type' => 'konto',
+			'fixed' => [
+				'missing' => true,
+				'usestdsem' => true
+			],
+			'dynamic' => [
+				'buchungstyp_kurzbz' => [
+					'type' => 'select',
+					'values' => $buchungstyp_kurzbz,
+					'value_key' => 'buchungstyp_kurzbz',
+					'label_key' => 'beschreibung'
+				]
+			]
+		];
+		$result[] = [
+			'id' => 'filter_konto_studiengebuehrerhoeht',
+			'label' => $this->p->t('stv', 'filter_konto_studiengebuehrerhoeht'),
+			'type' => 'konto',
+			'fixed' => [
+				'usestdsem' => true
+			],
+			'dynamic' => [
+				'buchungstyp_kurzbz' => [
+					'type' => 'select',
+					'values' => $buchungstyp_kurzbz,
+					'value_key' => 'buchungstyp_kurzbz',
+					'label_key' => 'beschreibung'
+				]
+			]
+		];
+		$result[] = [
+			'id' => 'filter_zgv_without_date',
+			'label' => $this->p->t('stv', 'filter_zgv_without_date'),
+			'type' => 'zgv'
+		];
+		$result[] = [
+			'id' => 'filter_statusgrund',
+			'label' => $this->p->t('stv', 'filter_statusgrund'),
+			'type' => 'statusgrund',
+			'fixed' => [
+				'usestdsem' => true
+			],
+			'dynamic' => [
+				'statusgrund_id' => [
+					'type' => 'select',
+					'values' => $statusgruende,
+					'value_key' => 'statusgrund_id',
+					'label_key' => 'bezeichnung'
+				]
+			]
+		];
+
+		Events::trigger('stv_conf_filter', function & () use (&$result) {
+			return $result;
+		});
+
+		$this->terminateWithSuccess($result);
+	}
+
 	public function student()
 	{
 		$result = [];
@@ -59,21 +304,21 @@ class Config extends FHCAPI_Controller

 		$result['details'] = [
 			'title' => $this->p->t('stv', 'tab_details'),
-			'component' => './Stv/Studentenverwaltung/Details/Details.js',
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Details.js'),
 			'config' => $config['details']
 		];

 		$result['notes'] = [
 			'title' => $this->p->t('stv', 'tab_notes'),
-			'component' => './Stv/Studentenverwaltung/Details/Notizen.js',
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Notizen.js'),
 			'config'	=> $config['notes'],
 			'showSuffix' => ($config['notes']['showCountNotes'] ?? false),
-			'suffixhelper' => APP_ROOT . 'public/js/helpers/Stv/Studentenverwaltung/Details/Notizen/NotizenSuffixHelper.js'
+			'suffixhelper' => absoluteJsImportUrl('public/js/helpers/Stv/Studentenverwaltung/Details/Notizen/NotizenSuffixHelper.js')
 		];

 		$result['contact'] = [
 			'title' => $this->p->t('stv', 'tab_contact'),
-			'component' => './Stv/Studentenverwaltung/Details/Kontakt.js',
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Kontakt.js'),
 			'config' => [
 				'showBankaccount' => $this->permissionlib->isBerechtigt('mitarbeiter/bankdaten')
 					|| $this->permissionlib->isBerechtigt('student/bankdaten')
@@ -81,20 +326,23 @@ class Config extends FHCAPI_Controller
 		];
 		$result['prestudent'] = [
 			'title' => $this->p->t('stv', 'tab_prestudent'),
-			'component' => './Stv/Studentenverwaltung/Details/Prestudent.js',
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Prestudent.js'),
 			'config' => $config['prestudent']
 		];
 		$result['status'] = [
 			'title' => 'Status',
-			'component' => './Stv/Studentenverwaltung/Details/MultiStatus.js'
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/MultiStatus.js'),
+			'config' => [
+				'showStatusVorruecken' => defined('STATUS_VORRUECKEN_ANZEIGEN') ? STATUS_VORRUECKEN_ANZEIGEN : true,
+			]
 		];
 		$result['documents'] = [
 			'title' => $this->p->t('stv', 'tab_documents'),
-			'component' => './Stv/Studentenverwaltung/Details/Dokumente.js'
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Dokumente.js')
 		];
 		$result['banking'] = [
 			'title' => $this->p->t('stv', 'tab_banking'),
-			'component' => './Stv/Studentenverwaltung/Details/Konto.js',
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Konto.js'),
 			'config' => [
 				'showZahlungsbestaetigung' => (defined('ZAHLUNGSBESTAETIGUNG_ANZEIGEN') && ZAHLUNGSBESTAETIGUNG_ANZEIGEN),
 				'showBuchungsnr' => $this->permissionlib->isBerechtigt('admin'),
@@ -106,20 +354,22 @@ class Config extends FHCAPI_Controller
 		];
 		$result['resources'] = [
 			'title' => $this->p->t('stv', 'tab_resources'),
-			'component' => './Stv/Studentenverwaltung/Details/Betriebsmittel.js'
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Betriebsmittel.js'),
+			'showOnlyWithUid' => true
 		];
 		$result['groups'] = [
 			'title' => $this->p->t('stv', 'tab_groups'),
-			'component' => './Stv/Studentenverwaltung/Details/Gruppen.js'
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Groups.js'),
+			'showOnlyWithUid' => true
 		];
 		$result['messages'] = [
 			'title' => $this->p->t('stv', 'tab_messages'),
-			'component' => './Stv/Studentenverwaltung/Details/Messages.js'
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Messages.js'),
 		];

 		$result['grades'] = [
 			'title' => $this->p->t('stv', 'tab_grades'),
-			'component' => './Stv/Studentenverwaltung/Details/Noten.js',
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Noten.js'),
 			'showOnlyWithUid' => true,
 			'config' => [
 				'usePoints' => defined('CIS_GESAMTNOTE_PUNKTE') && CIS_GESAMTNOTE_PUNKTE,
@@ -132,29 +382,42 @@ class Config extends FHCAPI_Controller

 		$result['exam'] = [
 			'title' => $this->p->t('stv', 'tab_exam'),
-			'component' => './Stv/Studentenverwaltung/Details/Pruefung.js'
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Pruefung.js'),
+			'showOnlyWithUid' => true
 		];

 		$result['exemptions'] = [
 			'title' => $this->p->t('lehre', 'anrechnungen'),
-			'component' => './Stv/Studentenverwaltung/Details/Anrechnungen.js',
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Anrechnungen.js'),
 			'config' => $config['exemptions']
 		];

 		$result['finalexam'] = [
 			'title' => $this->p->t('stv', 'tab_finalexam'),
-			'component' => './Stv/Studentenverwaltung/Details/Abschlusspruefung.js',
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Abschlusspruefung.js'),
+			'showOnlyWithUid' => true,
 			'config' => $config['finalexam']
 		];

+		$result['projektarbeit'] = [
+			'title' => $this->p->t('stv', 'tab_projektarbeit'),
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Projektarbeit.js'),
+			'config' => array_merge(
+				$config['projektarbeit'],
+				['showVertragsdetails' =>
+					defined('FAS_STUDIERENDE_PROJEKTARBEIT_VERTRAGSDETAILS_ANZEIGEN') && FAS_STUDIERENDE_PROJEKTARBEIT_VERTRAGSDETAILS_ANZEIGEN]
+			)
+		];
+
 		$result['mobility'] = [
 			'title' => $this->p->t('stv', 'tab_mobility'),
-			'component' => './Stv/Studentenverwaltung/Details/Mobility.js'
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Mobility.js'),
+			'showOnlyWithUid' => true
 		];

 		$result['archive'] = [
 			'title' => $this->p->t('stv', 'tab_archive'),
-			'component' => './Stv/Studentenverwaltung/Details/Archiv.js',
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Archiv.js'),
 			'config' => [
 				'showEdit' => $this->permissionlib->isBerechtigt('admin')
 			]
@@ -162,29 +425,33 @@ class Config extends FHCAPI_Controller

 		$result['jointstudies'] = [
 			'title' => $this->p->t('stv', 'tab_jointstudies'),
-			'component' => './Stv/Studentenverwaltung/Details/JointStudies.js'
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/JointStudies.js'),
+			'showOnlyWithUid' => true
 		];

 		$result['coursedates'] = [
 			'title' => $this->p->t('stv', 'tab_courseDates'),
-			'component' => './Stv/Studentenverwaltung/Details/Lehrveranstaltungstermine.js'
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Lehrveranstaltungstermine.js')
 		];

 		$result['admissionDates'] = [
 			'title' => $this->p->t('stv', 'tab_admissionDates'),
-			'component' => './Stv/Studentenverwaltung/Details/Aufnahmetermine.js'
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Aufnahmetermine.js')
 		];

 		$result['functions'] = [
 			'title' => $this->p->t('stv', 'tab_functions'),
-			'component' => './Stv/Studentenverwaltung/Details/Funktionen.js'
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Funktionen.js'),
+			'showOnlyWithUid' => true
 		];

 		Events::trigger('stv_conf_student', function & () use (&$result) {
 			return $result;
 		});

-		$this->terminateWithSuccess($result);
+		$sortConfig = $this->config->item('student_tab_order');
+
+		$this->terminateWithSuccess($this->sortTabList($result, $sortConfig));
 	}

 	public function students()
@@ -193,7 +460,7 @@ class Config extends FHCAPI_Controller
 		$config = $this->config->item('tabs');
 		$result['banking'] = [
 			'title' => $this->p->t('stv', 'tab_banking'),
-			'component' => './Stv/Studentenverwaltung/Details/Konto.js',
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Konto.js'),
 			'config' => [
 				'showZahlungsbestaetigung' => (defined('ZAHLUNGSBESTAETIGUNG_ANZEIGEN') && ZAHLUNGSBESTAETIGUNG_ANZEIGEN),
 				'showBuchungsnr' => $this->permissionlib->isBerechtigt('admin'),
@@ -203,9 +470,14 @@ class Config extends FHCAPI_Controller
 				'additionalCols' => []
 			]
 		];
+		$result['groups'] = [
+			'title' => $this->p->t('stv', 'tab_groups'),
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Groups.js'),
+			'showOnlyWithUid' => true
+		];
 		$result['status'] = [
 			'title' => 'Status',
-			'component' => './Stv/Studentenverwaltung/Details/MultiStatus.js',
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/MultiStatus.js'),
 			'config' => [
 				'changeStatusToAbbrecherStgl' => $this->permissionlib->isBerechtigt('admin'),
 				'changeStatusToAbbrecherStud' => $this->permissionlib->isBerechtigt('admin'),
@@ -216,22 +488,44 @@ class Config extends FHCAPI_Controller
 		];
 		$result['finalexam'] = [
 			'title' => $this->p->t('stv', 'tab_finalexam'),
-			'component' => './Stv/Studentenverwaltung/Details/Abschlusspruefung.js',
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Abschlusspruefung.js'),
+			'showOnlyWithUid' => true,
 			'config' => $config['finalexam']
 		];
 		$result['archive'] = [
 			'title' => $this->p->t('stv', 'tab_archive'),
-			'component' => './Stv/Studentenverwaltung/Details/Archiv.js',
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Archiv.js'),
 			'config' => [
 				'showEdit' => $this->permissionlib->isBerechtigt('admin')
 			]
 		];

+		if($this->permissionlib->isBerechtigt('basis/person'))
+		{
+			$result['combinePeople'] = [
+				'title' => $this->p->t('stv', 'tab_combine_people'),
+				'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/CombinePeople.js'),
+				'config' => $config['combinePeople']
+			];
+		}
+
+		$result['kontaktieren'] = [
+			'title' => $this->p->t('stv', 'tab_kontaktieren'),
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Kontaktieren.js'),
+		];
+
+		$result['messages'] = [
+			'title' => $this->p->t('stv', 'tab_messages'),
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Messages.js'),
+		];
+
 		Events::trigger('stv_conf_students', function & () use (&$result) {
 			return $result;
 		});

-		$this->terminateWithSuccess($result);
+		$sortConfig = $this->config->item('students_tab_order');
+
+		$this->terminateWithSuccess($this->sortTabList($result, $sortConfig));
 	}

 	protected function kontoColumns()
@@ -507,4 +801,34 @@ class Config extends FHCAPI_Controller

 		return $list;
 	}
+
+	/**
+	 * Sort tab list
+	 *
+	 * @param array		$input
+	 * @param array		$config
+	 *
+	 * @return array
+	 */
+	protected function sortTabList($input, $config)
+	{
+		// prepare config
+		if (!$config || !is_array($config))
+			$config = [];
+		else
+			$config = array_flip($config);
+
+		// fill missing items in config
+		foreach (array_keys($input) as $key) {
+			if (!isset($config[$key]))
+				$config[$key] = count($config);
+		}
+
+		// do the sorting
+		uksort($input, function ($a, $b) use ($config) {
+			return $config[$a] - $config[$b];
+		});
+		
+		return $input;
+	}
 }
@@ -2,6 +2,7 @@

 if (! defined('BASEPATH')) exit('No direct script access allowed');

+use \CI3_Events as Events;
 use \DateTime as DateTime;

 class Dokumente extends FHCAPI_Controller
@@ -19,6 +20,8 @@ class Dokumente extends FHCAPI_Controller
 			'getDoktypen' => ['admin:r', 'assistenz:r'],
 			'uploadDokument' => ['admin:rw', 'assistenz:rw'],
 			'download' => ['admin:rw', 'assistenz:rw'],
+			'getDocumentDropDown' => ['admin:rw', 'assistenz:rw'],
+			'getDocumentDropDownMulti' => ['admin:rw', 'assistenz:rw'],
 		]);

 		// Load Libraries
@@ -566,4 +569,422 @@ class Dokumente extends FHCAPI_Controller
 			return false;
 		}
 	}
+
+	public function getDocumentDropDown($prestudent_id, $studiensemester_kurzbz, $studiengang_kz)
+	{
+		$this->load->helper('hlp_common');
+		//permission to create also odt, and doc outputs of certain documents(menu abschlusspruefung)
+		$hasPermissionOutputformat = $this->permissionlib->isBerechtigt('system/change_outputformat', 's');
+
+		if (!$prestudent_id)
+			$this->terminateWithError($this->p->t('ui', 'errorMissingValue', ['value' => 'Prestudent_id']), self::ERROR_TYPE_GENERAL);
+		if (!$studiensemester_kurzbz)
+			$this->terminateWithError($this->p->t('ui', 'errorMissingValue', ['value' => 'Studiensemester']), self::ERROR_TYPE_GENERAL);
+		if(!$studiengang_kz)
+			$this->terminateWithError($this->p->t('ui', 'errorMissingValue', ['value' => 'Studiengang_kz']), self::ERROR_TYPE_GENERAL);
+
+
+		$uid = $this->_loadUIDFromPrestudent($prestudent_id);
+		$semArray = $this->_getEntriesStudiensemester();
+		$stgTyp = $this->_getStudiengangstyp($studiengang_kz);
+
+		$documents = [
+			buildDropdownEntryPrintArray("accountinfo", "Accountinfoblatt", "xml=accountinfoblatt.xml.php&xsl=AccountInfo&output=pdf", $uid, 10, null),
+			buildDropdownEntryPrintArray("ausbildungsvertrag", "Ausbildungsvertrag", "xml=ausbildungsvertrag.xml.php&xsl=Ausbildungsver&output=pdf&prestudent_id=$prestudent_id", null,20, null),
+			buildDropdownEntryPrintArray("ausbildungsvertrag_en", "Ausbildungsvertrag Zweisprachig", "xml=ausbildungsvertrag.xml.php&xsl=AusbVerEng&output=pdf&prestudent_id=$prestudent_id", null,21, null),
+
+			buildDropdownEntryPrintArray("bescheid", "Bescheid (nur Voransicht)", "xml=abschlusspruefung.rdf.php&xsl_stg_kz=$studiengang_kz&xsl=Bescheid&output=pdf", $uid, 25, null),
+			buildDropdownEntryPrintArray("diplomasupp", "Diploma Supplement (nur Voransicht)", "xml=diplomasupplement.xml.php&xsl_stg_kz=$studiengang_kz&xsl=DiplSupplement&output=pdf", $uid, 26, null),
+
+			buildDropdownEntryPrintArray("studienbestaetigung", "Studienbestätigung", "xml=student.rdf.php&xsl=Inskription&output=pdf&ss=$studiensemester_kurzbz&xsl_stg_kz=$studiengang_kz", $uid, 50, null),
+			buildDropdownEntryPrintArray("studienbestaetigung_en", "Studienbestätigung Englisch", "xml=student.rdf.php&xsl=InskriptionEng&output=pdf&ss=$studiensemester_kurzbz&xsl_stg_kz=$studiengang_kz", $uid, 51, null),
+			buildDropdownEntryPrintArray("zutrittskarte", "Zutrittskarte", "xsl=ZutrittskarteStud&output=pdf&data=$uid", $uid,200, "zutrittskarte.php"),
+			buildDropdownEntryPrintArray("studienblatt", "Studienblatt", "xml=studienblatt.xml.php&xsl=Studienblatt&output=pdf&ss=$studiensemester_kurzbz", $uid, 60, null),
+			buildDropdownEntryPrintArray("studienblatt_eng", "Studienblatt Englisch", "xml=studienblatt.xml.php&xsl=StudienblattEng&output=pdf&ss=$studiensemester_kurzbz", $uid, 61, null),
+
+			$this->buildStudienerfolgSubmenu("de", $uid, $semArray, $studiensemester_kurzbz),
+			$this->buildStudienerfolgSubmenu("en", $uid, $semArray, $studiensemester_kurzbz),
+			$this->buildStudienerfolgSubmenu("de", $uid, $semArray, $studiensemester_kurzbz, true),
+			$this->buildStudienerfolgSubmenu("en", $uid, $semArray, $studiensemester_kurzbz, true),
+
+			[
+				"id" => "submenu_studstatus",
+				"type" => "submenu",
+				"name" => "Verwaltung des StudierendenStatus",
+				"order" => 110,
+				"data" => [
+					buildDropdownEntryPrintArray("Abmeldung", "Abmeldung", "xml=AntragAbmeldung.xml.php&xsl=AntragAbmeldung&prestudent_id=$prestudent_id&output=pdf", $uid, null, null),
+					buildDropdownEntryPrintArray("Abmeldung durch Stgl", "AntragAbmeldungStgl", "xml=AntragAbmeldungStgl.xml.php&xsl=AntragAbmeldungStgl&prestudent_id=$prestudent_id&output=pdf", $uid, null, null),
+					buildDropdownEntryPrintArray("Unterbrechung", "Unterbrechung", "xml=AntragUnterbrechung.xml.php&xsl=AntragUnterbrechung&prestudent_id=$prestudent_id&output=pdf", $uid, null, null),
+					buildDropdownEntryPrintArray("Wiederholung", "Abmeldung durch Ablauf der Wiederholungsfrist", "xml=AntragWiederholung.xml.php&xsl=AntragWiederholung&prestudent_id=$prestudent_id&output=pdf", $uid, null, null),
+				]
+			],
+
+			//Bakkzeugnis bzw. Diplomzeugnis is just shown in tab final_exam
+			buildDropdownEntryPrintArray("zeugnis", "Zeugnis", "xml=zeugnis.rdf.php&xsl=Zeugnis&output=pdf&xsl_stg_kz=$studiengang_kz&ss=$studiensemester_kurzbz", $uid, 121, null),
+			buildDropdownEntryPrintArray("zeugnis_en", "Zeugnis Englisch", "xml=zeugnis.rdf.php&xsl=ZeugnisEng&output=pdf&xsl_stg_kz=$studiengang_kz&ss=$studiensemester_kurzbz", $uid, 122, null),
+
+
+		];
+
+		Events::trigger('DocumentGenerationDropDown',
+			// passing $menu per reference
+			function & () use (&$documents) {
+				return $documents;
+			},
+			$prestudent_id,
+			$studiensemester_kurzbz,
+			$studiengang_kz
+		);
+
+		$extraEntries = $this->loadDropDownEntriesBakkOrDipl($stgTyp, $uid);
+
+		$documents = array_merge($documents, $extraEntries);
+
+		usort($documents, function ($a, $b) {
+			$orderA = isset($a['order']) ? (int)$a['order'] : PHP_INT_MAX;
+			$orderB = isset($b['order']) ? (int)$b['order'] : PHP_INT_MAX;
+			return $orderA <=> $orderB;
+		});
+
+		$this->terminateWithSuccess($documents);
+		//return $documents || null;
+	}
+
+	public function getDocumentDropDownMulti($studiensemester_kurzbz,$studiengang_kz)
+	{
+		//permission to create also odt, and doc outputs of certain documents (menu abschlusspruefung)
+		$hasPermissionOutputformat = $this->permissionlib->isBerechtigt('system/change_outputformat', 's');
+
+		$studentUids = $this->input->get('studentUids');
+		$prestudentIds = [];
+
+		if (is_array($studentUids) && !empty($studentUids)) {
+			foreach ($studentUids as $uid) {
+				$prestudent_id = $this-> _loadPrestudentFromUid($uid);
+				$prestudentIds[] = $prestudent_id;
+			}
+		}
+		else
+		{
+			$this->terminateWithError($this->p->t('ui', 'errorMissingValue', ['value' => 'Array StudentUIDs']), self::ERROR_TYPE_GENERAL);
+		}
+
+		if (!$studiensemester_kurzbz)
+			$this->terminateWithError($this->p->t('ui', 'errorMissingValue', ['value' => 'Studiensemester']), self::ERROR_TYPE_GENERAL);
+		if(!$studiengang_kz)
+			$this->terminateWithError($this->p->t('ui', 'errorMissingValue', ['value' => 'Studiengang_kz']), self::ERROR_TYPE_GENERAL);
+
+
+		$uidString = implode(";", $studentUids);
+		$prestudentIdsString = implode(";", $prestudentIds);
+
+		$semArray = $this->_getEntriesStudiensemester();
+		$stgTyp = $this->_getStudiengangstyp($studiengang_kz);
+
+		$documents = [
+			buildDropdownEntryPrintArray("accountinfo", "Accountinfoblatt", "xml=accountinfoblatt.xml.php&xsl=AccountInfo&output=pdf", $uidString, 10, null),
+			buildDropdownEntryPrintArray("ausbildungsvertrag", "Ausbildungsvertrag", "xml=ausbildungsvertrag.xml.php&xsl=Ausbildungsver&output=pdf", $uidString, 20, null),
+			buildDropdownEntryPrintArray("ausbildungsvertrag_en", "Ausbildungsvertrag Englisch", "xml=ausbildungsvertrag.xml.php&xsl=AusbVerEng&output=pdf", $uidString, 21, null),
+			buildDropdownEntryPrintArray("studienbestaetigung", "Studienbestätigung", "xml=student.rdf.php&xsl=Inskription&output=pdf&ss=$studiensemester_kurzbz&xsl_stg_kz=$studiengang_kz", $uidString, 50, null),
+			buildDropdownEntryPrintArray("studienbestaetigung_en", "Studienbestätigung Englisch", "xml=student.rdf.php&xsl=InskriptionEng&output=pdf&ss=$studiensemester_kurzbz&xsl_stg_kz=$studiengang_kz", $uidString, 51, null),
+			buildDropdownEntryPrintArray("zutrittskarte", "Zutrittskarte", "xsl=ZutrittskarteStud&output=pdf&data=$uidString", $uidString,200, "zutrittskarte.php"),
+			buildDropdownEntryPrintArray("studienblatt", "Studienblatt", "xml=studienblatt.xml.php&xsl=Studienblatt&output=pdf&ss=$studiensemester_kurzbz", $uidString, 60, null),
+			buildDropdownEntryPrintArray("studienblatt_eng", "Studienblatt Englisch", "xml=studienblatt.xml.php&xsl=StudienblattEng&output=pdf&ss=$studiensemester_kurzbz", $uidString, 61, null),
+
+			// Studienerfolg Menüs automatisch
+			$this->buildStudienerfolgSubmenu("de", $uidString, $semArray, $studiensemester_kurzbz),
+			$this->buildStudienerfolgSubmenu("en", $uidString, $semArray, $studiensemester_kurzbz),
+			$this->buildStudienerfolgSubmenu("de", $uidString, $semArray, $studiensemester_kurzbz, true),
+			$this->buildStudienerfolgSubmenu("en", $uidString, $semArray, $studiensemester_kurzbz, true),
+
+			[
+				"id" => "submenu_studstatus",
+				"type" => "submenu",
+				"name" => "Verwaltung des StudierendenStatus",
+				"order" => 110,
+				"data" => [
+					buildDropdownEntryPrintArray("Abmeldung", "Abmeldung", "xml=AntragAbmeldung.xml.php&xsl=AntragAbmeldung&prestudent_id=$prestudentIdsString&output=pdf", $uidString, null, null),
+					buildDropdownEntryPrintArray("Abmeldung durch Stgl", "AntragAbmeldungStgl", "xml=AntragAbmeldungStgl.xml.php&xsl=AntragAbmeldungStgl&prestudent_id=$prestudentIdsString&output=pdf", $uidString, null, null),
+					buildDropdownEntryPrintArray("Unterbrechung", "Unterbrechung", "xml=AntragUnterbrechung.xml.php&xsl=AntragUnterbrechung&prestudent_id=$prestudentIdsString&output=pdf", $uidString, null, null),
+					buildDropdownEntryPrintArray("Wiederholung", "Abmeldung durch Ablauf der Wiederholungsfrist", "xml=AntragWiederholung.xml.php&xsl=AntragWiederholung&prestudent_id=$prestudentIdsString&output=pdf", $uidString, null, null),
+				]
+			],
+
+			buildDropdownEntryPrintArray("diplomasupp", "Diploma Supplement (nur Voransicht)", "xml=diplomasupplement.xml.php&xsl_stg_kz=$studiengang_kz&xsl=DiplSupplement&output=pdf", $uidString, 35, null),
+			buildDropdownEntryPrintArray("zeugnis", "Zeugnis", "xml=zeugnis.rdf.php&xsl=Zeugnis&output=pdf&xsl_stg_kz=$studiengang_kz&ss=$studiensemester_kurzbz", $uidString, 121, null),
+			buildDropdownEntryPrintArray("zeugnis_en", "Zeugnis Englisch", "xml=zeugnis.rdf.php&xsl=ZeugnisEng&output=pdf&xsl_stg_kz=$studiengang_kz&ss=$studiensemester_kurzbz", $uidString, 122, null),
+		];
+
+		Events::trigger('DocumentGenerationDropDownMulti',
+			// passing $menu per reference
+			function & () use (&$documents) {
+				return $documents;
+			},
+			$studentUids,
+			$studiensemester_kurzbz,
+			$studiengang_kz
+		);
+
+		$extraEntries = $this->loadDropDownEntriesBakkOrDipl($stgTyp, $uidString);
+
+		$documents = array_merge($documents, $extraEntries);
+
+		usort($documents, function ($a, $b) {
+			$orderA = isset($a['order']) ? (int)$a['order'] : PHP_INT_MAX;
+			$orderB = isset($b['order']) ? (int)$b['order'] : PHP_INT_MAX;
+			return $orderA <=> $orderB;
+		});
+
+
+		$this->terminateWithSuccess($documents);
+
+		return $documents || null;
+	}
+
+	private function _loadUIDFromPrestudent($prestudent_id)
+	{
+		if(!$prestudent_id){
+			return $this->terminateWithError("no prestudent ID received.");
+		}
+		$this->load->model('crm/Student_model', 'StudentModel');
+		$result = $this->StudentModel->loadWhere(
+			['prestudent_id' => $prestudent_id]
+		);
+
+		$data = $this->getDataOrTerminateWithError($result);
+		$student = current($data);
+
+		return $student->student_uid;
+	}
+
+	private function _loadPrestudentFromUid($studentUid)
+	{
+
+		$this->load->model('crm/Student_model', 'StudentModel');
+		$result = $this->StudentModel->loadWhere(
+			['student_uid' => $studentUid]
+		);
+
+		$data = $this->getDataOrTerminateWithError($result);
+		$student = current($data);
+
+
+		return $student->prestudent_id;
+	}
+
+	/**
+	 * is building an array with studiensemesterkurzb
+	 * actual studiensemester plus the 5 studiensemester in the past
+
+	 * @return Array Studiensemester_kurzbz
+	 */
+	private function _getEntriesStudiensemester(){
+		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+
+		$this->StudiensemesterModel->addPlusMinus(1, 5);
+		$this->StudiensemesterModel->addOrder('ende', 'DESC');
+		$result = $this->StudiensemesterModel->load();
+		$data = $this->getDataOrTerminateWithError($result);
+
+		foreach($data as $sem)
+		{
+			$semArray[] = $sem->studiensemester_kurzbz;
+		}
+
+		array_shift($semArray);
+
+		return $semArray;
+	}
+	/**
+	 * is returning the typ of Studiengang (Bakk oder Master)
+
+	 * @return character  eg. 'b' or 'm'
+	 */
+	private function _getStudiengangstyp($studiengang_kz)
+	{
+		$this->load->model('organisation/Studiengang_model', 'StudiengangModel');
+
+		$result = $this->StudiengangModel->loadWhere(
+			array('studiengang_kz' => $studiengang_kz)
+		);
+		$data = $this->getDataOrTerminateWithError($result);
+
+		$typStudiengang = current($data)->typ;
+
+		return $typStudiengang;
+	}
+
+	/**
+	 * helper function to create ArrayStructure
+	 * actual studiensemester plus the 5 studiensemester in the past
+
+	 * @return Array Studiensemester_kurzbz
+	 */
+	private function buildStudienerfolgSubmenu($lang, $uid, $semArray, $studiensemester_kurzbz, $fa = false)
+	{
+		$entries = [];
+
+		$xsl = $lang === "de" ? "Studienerfolg" : "StudienerfolgEng";
+		$idPrefix = "submenu_studienerfolg_" . $lang . ($fa ? "_fa" : "");
+
+		$entries[] = buildDropdownEntryPrintArray(
+			$idPrefix . "_aktuell",
+			"ausgewähltes Semester",
+			"xml=studienerfolg.rdf.php&xsl=$xsl&ss=$studiensemester_kurzbz" . ($fa ? "&typ=finanzamt" : ""),
+			$uid
+		);
+
+		//all semester
+		$entries[] = buildDropdownEntryPrintArray(
+			$idPrefix . "_all",
+			"alle Semester",
+			"xml=studienerfolg.rdf.php&xsl=$xsl&ss=$studiensemester_kurzbz&all=true" . ($fa ? "&typ=finanzamt" : ""),
+			$uid
+		);
+
+		//sem from array
+		foreach ($semArray as $i => $sem) {
+			$entries[] = buildDropdownEntryPrintArray(
+				$idPrefix . ($i === 0 ? "_akt" : "_minus" . $i),
+				$sem,
+				"xml=studienerfolg.rdf.php&xsl=$xsl&ss=$sem" . ($fa ? "&typ=finanzamt" : ""),
+				$uid
+			);
+
+		}
+		$order = 0;
+		if ($lang === "de" && !$fa) $order = 75; // Studienerfolg
+		if ($lang === "en" && !$fa) $order = 76; // Studienerfolg Englisch
+		if ($lang === "de" &&  $fa) $order = 77; // Studienerfolg Finanzamt
+		if ($lang === "en" &&  $fa) $order = 78; // Studienerfolg Finanzamt Englisch
+
+		return [
+			"id"   => $idPrefix,
+			"type" => "submenu",
+			"name" => "Studienerfolg " . ($fa ? " Finanzamt" : "") . ($lang === "de" ? "" : "Englisch") ,
+			"order" => $order,
+			"data" => $entries,
+		];
+	}
+
+	private function loadDropDownEntriesFinalExam($hasPermissionOutputformat, $stgTyp, $uid)
+	{
+		if ($stgTyp == 'b')
+			$postfix = 'Bakk';
+		else if ($stgTyp == 'm' || $stgTyp == 'd')
+			$postfix = 'Master';
+		else
+			return [];
+
+		$arrayFinalExam = [
+			'pruefungsprotokoll' => [
+				'de' => [
+					'Bakk' => 'PrProtBA',
+					'Master' => 'PrProtMA',
+				],
+				'en' => [
+					'Bakk' => 'PrProtBAEng',
+					'Master' => 'PrProtMAEng',
+				],
+			],
+			'pruefungszeugnis' => [
+				'de' => [
+					'Bakk' => 'Bakkzeugnis',
+					'Master' => 'Diplomzeugnis',
+				],
+				'en' => [
+					'Bakk' => 'BakkzeugnisEng',
+					'Master' => 'DiplomzeugnisEng',
+				],
+			],
+			'urkunde' => [
+				'de' => [
+					'Bakk' => 'Bakkurkunde',
+					'Master' => 'Diplomurkunde',
+				],
+				'en' => [
+					'Bakk' => 'BakkurkundeEng',
+					'Master' => 'DiplomurkundeEng',
+				],
+			],
+		];
+
+		$langLabels = [
+			"de" => "Deutsch",
+			"en" => "Englisch"
+		];
+
+		$docLabels = [
+			"pruefungsprotokoll" => "Prüfungsprotokoll",
+			"pruefungszeugnis" => "Zeugnis",
+			"urkunde" => "Urkunde"
+		];
+
+		$submenuData = [];
+		if ($hasPermissionOutputformat) {
+			foreach ($arrayFinalExam as $docType => $langs) {
+				foreach ($langs as $lang => $types) {
+					$xsl = $types[$postfix];
+					$idPrefix = $docType . "_" . $lang;
+
+					$baseName = $docLabels[$docType] . " " . $langLabels[$lang];
+					$baseUrl = "xml=abschlusspruefung.rdf.php&xsl={$xsl}";
+
+					//3 outputformates
+					foreach (["pdf", "odt", "docx"] as $format) {
+						$submenuData[] = buildDropdownEntryPrintArray(
+							$idPrefix . "_" . $format,
+							$baseName . " (" . strtoupper($format) . ")",
+							$baseUrl . "&output=" . $format,
+							$uid
+						);
+					}
+				}
+			}
+		}
+		else
+		{
+			foreach ($arrayFinalExam as $docType => $langs) {
+				foreach ($langs as $lang => $types) {
+					$xsl = $types[$postfix]; // Auswahl Bakk/Master für jeweilige Sprache
+					$id = $docType . "_" . $lang;
+
+					$name = $docLabels[$docType] . " " . $langLabels[$lang];
+
+					$url = "xml=abschlusspruefung.rdf.php&xsl=" . $xsl . "&output=pdf";
+
+					$submenuData[] = buildDropdownEntryPrintArray($id, $name, $url, $uid);
+				}
+			}
+		}
+		return [
+			"id" => "submenu_finalexam",
+			"type" => "submenu",
+			"name" => "Abschlussprüfung",
+			"data" => $submenuData,
+			"order" => null,
+			"order" => 80,
+		];
+	}
+
+	private function loadDropDownEntriesBakkOrDipl($stgTyp, $uid)
+	{
+		$entries = [];
+
+		if ($stgTyp == 'b')
+		{
+			$entries[] = buildDropdownEntryPrintArray("bakkurkunde", "Bakkurkunde", "xml=abschlusspruefung.rdf.php&xsl=Bakkurkunde&output=pdf", $uid, 22, null);
+			$entries[] = buildDropdownEntryPrintArray("bakkurkundeEng", "Bakkurkunde Englisch", "xml=abschlusspruefung.rdf.php&xsl=BakkurkundeEng&output=pdf", $uid, 23, null);
+		}
+
+		if ($stgTyp == 'm' || $stgTyp == 'd')
+		{
+			$entries[] = buildDropdownEntryPrintArray("diplomurkunde", "Diplomurkunde", "xml=abschlusspruefung.rdf.php&xsl=Diplomurkunde&output=pdf", $uid, 27, null);
+			$entries[] = buildDropdownEntryPrintArray("diplomurkundeEng", "Diplomurkunde Englisch", "xml=abschlusspruefung.rdf.php&xsl=DiplomurkundeEng&output=pdf", $uid, 28, null);
+		}
+
+		return $entries;
+	}
+
 }
@@ -60,17 +60,6 @@ class Favorites extends FHCAPI_Controller

 		$favorites = $this->input->post('favorites');

-		$removed = [];
-		while (strlen($favorites) > 64) {
-			$favObj = json_decode($favorites);
-			if (!$favObj->list)
-				break;
-			$removed[] = array_shift($favObj->list);
-			$favorites = json_encode($favObj);
-		}
-		if ($removed)
-			$this->addMeta('removed', $removed);
-
 		$result = $this->VariableModel->setVariable(getAuthUID(), 'stv_favorites', $favorites);

 		$this->getDataOrTerminateWithError($result);
@@ -83,7 +83,7 @@ class GemeinsameStudien extends FHCAPI_Controller
 	{
 		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');

-		$this->StudiensemesterModel->addOrder('studienjahr_kurzbz', 'DESC');
+		$this->StudiensemesterModel->addOrder('start', 'DESC');
 		$result = $this->StudiensemesterModel->load();
 		$data = $this->getDataOrTerminateWithError($result);
 		$this->terminateWithSuccess($data);
@@ -60,7 +60,8 @@ class Grades extends FHCAPI_Controller
 	{
 		$this->load->model('codex/Note_model', 'NoteModel');

-		$this->NoteModel->addOrder('note');
+		$this->NoteModel->addOrder('notenwert', 'ASC');
+		$this->NoteModel->addOrder('bezeichnung', 'ASC');
 		
 		$result = $this->NoteModel->load();

@@ -9,6 +9,8 @@ class Gruppen extends FHCAPI_Controller
 	public function __construct()
 	{
 		parent::__construct([
+			'add' => ['admin:rw', 'assistenz:rw'],
+			'search' => ['admin:r', 'assistenz:r'],
 			'getGruppen' => ['admin:r', 'assistenz:r'],
 			'deleteGruppe' => ['admin:rw', 'assistenz:rw'],
 		]);
@@ -18,7 +20,9 @@ class Gruppen extends FHCAPI_Controller

 		// Load language phrases
 		$this->loadPhrases([
-			'ui', 'gruppenmanagement'
+			'ui',
+			'gruppenmanagement',
+			'lehre'
 		]);

 		// Load models
@@ -26,15 +30,141 @@ class Gruppen extends FHCAPI_Controller
 		$this->load->model('organisation/Gruppe_model', 'GruppeModel');
 	}

+	public function add()
+	{
+		$this->load->library("form_validation");
+
+		$this->form_validation->set_rules(
+			'gruppe_kurzbz',
+			$this->p->t('gruppenmanagement', 'gruppe'),
+			'required|is_in_db[organisation/Gruppe_model]',
+			[
+				'required' => $this->p->t('ui', 'error_fieldRequired'),
+				'is_in_db' => $this->p->t('ui', 'error_fieldNotFound')
+			]
+		);
+		$this->form_validation->set_rules(
+			'uid',
+			$this->p->t('ui', 'student_uid'),
+			'required|is_in_db[crm/Student_model:student_uid]',
+			[
+				'required' => $this->p->t('ui', 'error_fieldRequired'),
+				'is_in_db' => $this->p->t('ui', 'error_fieldNotFound')
+			]
+		);
+		$this->form_validation->set_rules(
+			'studiensemester_kurzbz',
+			$this->p->t('lehre', 'studiensemester'),
+			'required|is_in_db[organisation/Studiensemester_model]',
+			[
+				'required' => $this->p->t('ui', 'error_fieldRequired'),
+				'is_in_db' => $this->p->t('ui', 'error_fieldNotFound')
+			]
+		);
+
+		if (!$this->form_validation->run())
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+
+		$gruppe_kurzbz = $this->input->post('gruppe_kurzbz');
+		$uid = $this->input->post('uid');
+		$studiensemester_kurzbz = $this->input->post('studiensemester_kurzbz');
+
+		$result = $this->BenutzergruppeModel->load([
+			$gruppe_kurzbz,
+			$uid
+		]);
+		$benutzergruppe = $this->getDataOrTerminateWithError($result);
+
+		if ($benutzergruppe) {
+			$this->terminateWithError(
+				$this->p->t('gruppenmanagement', 'error_alreadyInGroup', [
+					'uid' => $uid,
+					'studiensemester_kurzbz' => current($benutzergruppe)->studiensemester_kurzbz
+				]),
+				self::ERROR_TYPE_GENERAL
+			);
+		}
+
+		$result = $this->BenutzergruppeModel->insert([
+			'uid' => $uid,
+			'gruppe_kurzbz' => $gruppe_kurzbz,
+			'studiensemester_kurzbz' => $studiensemester_kurzbz,
+			'insertamum' => date('c'),
+			'insertvon' => getAuthUID()
+		]);
+
+		$this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess();
+	}
+
+	public function search()
+	{
+		$query = $this->input->post('query');
+		if (!$query)
+			$this->terminateWithSuccess([]);
+
+		// add query to where clause
+		$query = strtoupper($query);
+		$query = $this->GruppeModel->db->escape_like_str($query);
+		$query = '%' . str_replace(' ', '%', $query) . '%';
+
+		$this->GruppeModel->db->group_start();
+		$this->GruppeModel->db->or_like('UPPER(gruppe_kurzbz)', $query, 'none', false);
+		$this->GruppeModel->db->or_like('UPPER(bezeichnung)', $query, 'none', false);
+		$this->GruppeModel->db->or_like('UPPER(beschreibung)', $query, 'none', false);
+		$this->GruppeModel->db->group_end();
+		
+		// add stg sorting 1
+		$studiengang_kz = $this->input->post('studiengang_kz');
+		$sort_stg = $studiengang_kz ? "WHEN studiengang_kz = " . $this->GruppeModel->escape($studiengang_kz) . " THEN 0" : "";
+
+		// add stg sorting 2
+		$studiengang_kzs = [];
+		$result = $this->permissionlib->getSTG_isEntitledFor('admin');
+		if ($result)
+			$studiengang_kzs = array_merge($studiengang_kzs, $result);
+		$result = $this->permissionlib->getSTG_isEntitledFor('assistenz');
+		if ($result)
+			$studiengang_kzs = array_merge($studiengang_kzs, $result);
+
+		// selects
+		$this->GruppeModel->addSelect("*");
+		$this->GruppeModel->addSelect("CASE
+			" . $sort_stg . "
+			WHEN studiengang_kz IN (" . implode(",", $this->GruppeModel->db->escape($studiengang_kzs)) . ")
+			THEN 1
+			ELSE 2
+		END AS sort_stg");
+
+		// ordering
+		$this->GruppeModel->addOrder("sort_stg");
+		$this->GruppeModel->addOrder("sort");
+		$this->GruppeModel->addOrder("gruppe_kurzbz");
+
+		// default where clause & execute
+		$result = $this->GruppeModel->loadWhere([
+			'lehre' => true,
+			'sichtbar' => true,
+			'aktiv' => true,
+			'direktinskription' => false,
+			'generiert' => false
+		]);
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess($data);
+	}
+
 	public function getGruppen($student_uid)
 	{
-		$this->BenutzergruppeModel ->addSelect('gruppe_kurzbz');
-		$this->BenutzergruppeModel ->addSelect('bezeichnung');
-		$this->BenutzergruppeModel ->addSelect('generiert');
-		$this->BenutzergruppeModel ->addSelect('uid');
-		$this->BenutzergruppeModel ->addSelect('studiensemester_kurzbz');
-		$this->BenutzergruppeModel ->addJoin('public.tbl_gruppe', 'gruppe_kurzbz');
-		$this->BenutzergruppeModel-> addOrder('bezeichnung', 'ASC');
+		$this->BenutzergruppeModel->addSelect('gruppe_kurzbz');
+		$this->BenutzergruppeModel->addSelect('bezeichnung');
+		$this->BenutzergruppeModel->addSelect('generiert');
+		$this->BenutzergruppeModel->addSelect('uid');
+		$this->BenutzergruppeModel->addSelect('studiensemester_kurzbz');
+		$this->BenutzergruppeModel->addJoin('public.tbl_gruppe', 'gruppe_kurzbz');
+		$this->BenutzergruppeModel->addOrder('bezeichnung', 'ASC');

 		$result = $this->BenutzergruppeModel->loadWhere(
 			array(
@@ -49,29 +179,48 @@ class Gruppen extends FHCAPI_Controller

 	public function deleteGruppe()
 	{
-		$student_uid = $this->input->post('id');
+		$this->load->library("form_validation");
+
+		$this->form_validation->set_rules(
+			'uid',
+			$this->p->t('person', 'UID'),
+			'required',
+			[
+				'required' => $this->p->t('ui', 'error_fieldRequired')
+			]
+		);
+
+		$this->form_validation->set_rules(
+			'gruppe_kurzbz',
+			$this->p->t('gruppenmanagement', 'gruppe'),
+			'required',
+			[
+				'required' => $this->p->t('ui', 'error_fieldRequired')
+			]
+		);
+
+		if (!$this->form_validation->run())
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+
+		$uid = $this->input->post('uid');
 		$gruppe_kurzbz = $this->input->post('gruppe_kurzbz');

-		//Validate if automatic group generation
-		$result = $this->GruppeModel-> loadWhere(
-			array(
-				'gruppe_kurzbz' => $gruppe_kurzbz
-			)
-		);
+		// Validate if automatic group generation
+		$result = $this->GruppeModel->loadWhere([
+			'gruppe_kurzbz' => $gruppe_kurzbz
+		]);
 		$data = $this->getDataOrTerminateWithError($result);
 		$generation = current($data);

-		if($generation->generiert)
+		if ($generation->generiert)
 		{
 			$this->terminateWithError($this->p->t('gruppenmanagement', 'error_deleteGeneratedGroups'), self::ERROR_TYPE_GENERAL);
 		}

-		$result = $this->BenutzergruppeModel->delete(
-			array(
-				'gruppe_kurzbz' => $gruppe_kurzbz,
-				'uid' => $student_uid
-				)
-		);
+		$result = $this->BenutzergruppeModel->delete([
+			'gruppe_kurzbz' => $gruppe_kurzbz,
+			'uid' => $uid
+		]);

 		$data = $this->getDataOrTerminateWithError($result);

@@ -52,6 +52,7 @@ class Kontakt extends FHCAPI_Controller
 		// Extra Permissionchecks
 		$permsMa = [];
 		$permsStud = [];
+		$permsDefault = null;
 		switch ($this->router->method) {
 			case 'getBankverbindung':
 			case 'loadBankverbindung':
@@ -68,7 +69,7 @@ class Kontakt extends FHCAPI_Controller
 			case 'getKontakte':
 			case 'loadAddress':
 			case 'loadContact':
-				$permsMa = $permsStud = ['admin:r', 'assistenz:r'];
+				$permsMa = $permsStud = $permsDefault = ['admin:r', 'assistenz:r'];
 				break;
 			case 'addNewAddress':
 			case 'addNewContact':
@@ -76,7 +77,7 @@ class Kontakt extends FHCAPI_Controller
 			case 'updateContact':
 			case 'deleteAddress':
 			case 'deleteContact':
-				$permsMa = $permsStud = ['admin:rw', 'assistenz:rw'];
+				$permsMa = $permsStud = $permsDefault = ['admin:rw', 'assistenz:rw'];
 				break;
 		}
 		if ($this->router->method == 'getAdressen'
@@ -91,7 +92,7 @@ class Kontakt extends FHCAPI_Controller
 			if (is_null($person_id) || !ctype_digit((string)$person_id))
 				$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);

-			$this->checkPermissionsForPerson($person_id, $permsMa, $permsStud);
+			$this->checkPermissionsForPerson($person_id, $permsMa, $permsStud, $permsDefault);
 		} elseif ($this->router->method == 'loadAddress'
 			|| $this->router->method == 'loadContact'
 			|| $this->router->method == 'loadBankverbindung'
@@ -135,7 +136,7 @@ class Kontakt extends FHCAPI_Controller

 			$person_id = current($data)->person_id;
 			
-			$this->checkPermissionsForPerson($person_id, $permsMa, $permsStud);
+			$this->checkPermissionsForPerson($person_id, $permsMa, $permsStud, $permsDefault);
 		}
 	}
 	public function getAdressen($person_id)
@@ -434,7 +435,10 @@ class Kontakt extends FHCAPI_Controller
 		$this->FirmaModel->addJoin('public.tbl_firma f', 'ON (f.firma_id = st.firma_id)', 'LEFT');
 		$this->KontakttypModel->addJoin('public.tbl_kontakttyp kt', 'ON (public.tbl_kontakt.kontakttyp = kt.kontakttyp)');
 		$result = $this->KontaktModel->loadWhere(
-			array('person_id' => $person_id)
+			array(
+				'person_id' => $person_id,
+				'public.tbl_kontakt.kontakttyp !=' => 'hidden'
+			)
 		);

 		if (isError($result))
@@ -442,20 +446,18 @@ class Kontakt extends FHCAPI_Controller
 			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
 		}
 		$this->terminateWithSuccess((getData($result) ?: []));
+
 	}

 	public function getKontakttypen()
 	{
 		$this->load->model('person/Kontakttyp_model', 'KontakttypModel');
+		$this->KontakttypModel->addOrder('beschreibung', 'ASC');
+		$result = $this->KontakttypModel->loadWhere(array('kontakttyp !=' => 'hidden'));

-		$result = $this->KontakttypModel->load();
-		if (isError($result)) {
-			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
-		}
-		else
-		{
-			$this->terminateWithSuccess(getData($result) ?: []);
-		}
+		$data = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess($data);
 	}

 	public function loadContact()
@@ -239,7 +239,7 @@ class Konto extends FHCAPI_Controller
 				$data[$field] = $this->input->post($field);

 		if (defined('FAS_BUCHUNGSTYP_FIXE_KOSTENSTELLE') && isset(unserialize(FAS_BUCHUNGSTYP_FIXE_KOSTENSTELLE)[$data['buchungstyp_kurzbz']])) {
-			$data['kostenstelle'] = unserialize(FAS_BUCHUNGSTYP_FIXE_KOSTENSTELLE)[$data['buchungstyp_kurzbz']];
+			$data['studiengang_kz'] = unserialize(FAS_BUCHUNGSTYP_FIXE_KOSTENSTELLE)[$data['buchungstyp_kurzbz']];
 		}

 		$result = [];
@@ -352,7 +352,7 @@ class Konto extends FHCAPI_Controller
 				continue;
 			}

-
+			
 			$result = $this->KontoModel->insert([
 				'person_id' => $buchung['person_id'],
 				'studiengang_kz' => $buchung['studiengang_kz'],
@@ -361,7 +361,7 @@ class Konto extends FHCAPI_Controller
 				'buchungstyp_kurzbz' => $buchung['buchungstyp_kurzbz'],
 				'credit_points' => $buchung['credit_points'],
 				'zahlungsreferenz' => $buchung['zahlungsreferenz'],
-				'betrag' => $betrag,
+				'betrag' => number_format($betrag, 2, '.', ''),
 				'buchungsdatum' => $buchungsdatum,
 				'mahnspanne' => '0',
 				'buchungsnr_verweis' => $buchung['buchungsnr'],
@@ -0,0 +1,63 @@
+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+
+class Lehrverband extends FHCAPI_Controller
+{
+	public function __construct()
+	{
+		parent::__construct([
+			'hasOrgforms' => ['admin:r', 'assistenz:r'],
+			'getTree' => ['admin:r', 'assistenz:r'],
+			'getSpecialgroups' => ['admin:r', 'assistenz:r']
+		]);
+	}
+
+	public function hasOrgforms($studiengang_kz)
+	{
+		$this->load->model('organisation/Studiengang_model', 'StudiengangModel');
+		
+		$result = $this->StudiengangModel->load($studiengang_kz);
+		
+		$data = $this->getDataOrTerminateWithError($result);
+		if ($data) {
+			$data = current($data)->mischform;
+		}
+		
+		$this->terminateWithSuccess($data);
+	}
+
+	public function getTree($studiengang_kz)
+	{
+		$this->load->model('organisation/Lehrverband_model', 'LehrverbandModel');
+
+		$result = $this->LehrverbandModel->loadWhere([
+			'studiengang_kz' => $studiengang_kz,
+			'aktiv' => true
+		]);
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess($data);
+	}
+
+	public function getSpecialgroups($studiengang_kz)
+	{
+		$this->load->model('organisation/Gruppe_model', 'GruppeModel');
+
+		$where = [
+			'studiengang_kz' => $studiengang_kz,
+			'lehre' => true,
+			'sichtbar' => true,
+			'aktiv' => true,
+			'direktinskription' => false
+		];
+
+		$result = $this->GruppeModel->loadWhere($where);
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess($data);
+	}
+}
@@ -43,7 +43,7 @@ class Prestudent extends FHCAPI_Controller

 		// Load language phrases
 		$this->loadPhrases([
-			'ui', 'studierendenantrag', 'lehre'
+			'ui', 'studierendenantrag', 'lehre', 'global'
 		]);
 	}

@@ -98,11 +98,9 @@ class Prestudent extends FHCAPI_Controller
 			'person_id',
 			'berufstaetigkeit_code',
 			'ausbildungcode',
-			'zgv_code',
 			'zgvort',
 			'zgvdatum',
 			'zgvnation',
-			'zgvmas_code',
 			'zgvmaort',
 			'zgvmadatum',
 			'zgvmanation',
@@ -110,7 +108,6 @@ class Prestudent extends FHCAPI_Controller
 			'bismelden',
 			'anmerkung',
 			'dual',
-			'zgvdoktor_code',
 			'zgvdoktorort',
 			'zgvdoktordatum',
 			'zgvdoktornation',
@@ -125,6 +122,57 @@ class Prestudent extends FHCAPI_Controller
 			'standort_code'
 		];

+		// add zgv code fields only if user has permission
+		$this->load->library('PermissionLib');
+		$prestudentres = $this->PrestudentModel->load($prestudent_id);
+		if(!hasData($prestudentres))
+		{
+			$this->terminateWithError($this->p->t('ui', 'error_fieldNotFound', ['field' => 'Prestudent ' . $prestudent_id]));
+		}
+		$prestudent = (getData($prestudentres))[0];
+		$bakkZgvStg = $this->permissionlib->getSTG_isEntitledFor('student/editBakkZgv') ?: array();
+		$makkZgvStg = $this->permissionlib->getSTG_isEntitledFor('student/editMakkZgv') ?: array();
+		$dokZgvStg = $this->permissionlib->getSTG_isEntitledFor('student/editDokZgv') ?: array();
+
+		if(in_array($prestudent->studiengang_kz, $bakkZgvStg)) 
+		{
+			$array_allowed_props_prestudent[] = 'zgv_code';
+		}
+		else if(!is_null($this->input->post('zgv_code')))
+		{
+			$this->terminateWithError(
+				$this->p->t('global', 'zgv')
+				. ' - ' .
+				$this->p->t('ui', 'error_keineBerechtigungStg')
+			);
+		}
+
+		if(in_array($prestudent->studiengang_kz, $makkZgvStg))
+		{
+			$array_allowed_props_prestudent[] = 'zgvmas_code';
+		}
+		else if(!is_null($this->input->post('zgvmas_code')))
+		{
+			$this->terminateWithError(
+				$this->p->t('lehre', 'zgvMaster')
+				. ' - ' .
+				$this->p->t('ui', 'error_keineBerechtigungStg')
+			);
+		}
+
+		if(in_array($prestudent->studiengang_kz, $dokZgvStg))
+		{
+			$array_allowed_props_prestudent[] = 'zgvdoktor_code';
+		}
+		else if(!is_null($this->input->post('zgvdoktor_code')))
+		{
+			$this->terminateWithError(
+				$this->p->t('lehre', 'zgvDoktor')
+				. ' - ' .
+				$this->p->t('ui', 'error_keineBerechtigungStg')
+			);
+		}
+
 		// add UDFs
 		$result = $this->udflib->getDefinitionForModel($this->PrestudentModel);

@@ -138,13 +186,24 @@ class Prestudent extends FHCAPI_Controller
 		{
 			$val = $this->input->post($prop, true);

-			if ($val !== null || $prop === 'foerderrelevant') {
+			if ($val !== null) {
+				if(in_array($prop, ['dual', 'bismelden', 'foerderrelevant']))
+				{
+					$val = boolval($val);
+				}
+				elseif (
+					$val === ''
+					&& in_array($prop, ['zgvnation', 'zgvmanation', 'zgvdoktornation', 'berufstaetigkeit_code', 'ausbildungcode'])
+				)
+				{
+					$val = null;
+				}
 				$update_prestudent[$prop] = $val;
 			}

 			// allowed to be null, but has to be in postparameter
 			if (
-				in_array($prop, ['zgvdatum', 'zgvmadatum', 'zgvdoktordatum', 'zgv_code', 'zgvmas_code', 'zgvdoktor_code'])
+				in_array($prop, ['foerderrelevant', 'zgvdatum', 'zgvmadatum', 'zgvdoktordatum', 'zgv_code', 'zgvmas_code', 'zgvdoktor_code'])
 				&& !isset($update_prestudent[$prop])
 				&& array_key_exists($prop, $_POST)
 			)
@@ -0,0 +1,413 @@
+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+use \DateTime as DateTime;
+
+class Projektarbeit extends FHCAPI_Controller
+{
+	public function __construct()
+	{
+		parent::__construct([
+			'getProjektarbeit' => ['admin:r', 'assistenz:r'],
+			'loadProjektarbeit' => ['admin:r', 'assistenz:r'],
+			'insertProjektarbeit' => ['admin:rw', 'assistenz:rw'],
+			'updateProjektarbeit' => ['admin:rw', 'assistenz:rw'],
+			'deleteProjektarbeit' => ['admin:rw', 'assistenz:rw'],
+			'getTypenProjektarbeit' => ['admin:r', 'assistenz:r'],
+			'getFirmen' => ['admin:r', 'assistenz:r'],
+			'getLehrveranstaltungen' => ['admin:r', 'assistenz:r'],
+			'getNoten' => ['admin:r', 'assistenz:r'],
+			'getStudiensemester' => ['admin:r', 'assistenz:r']
+		]);
+
+		// Load Libraries
+		$this->load->library('form_validation');
+
+		// Load language phrases
+		$this->loadPhrases([
+			'ui',
+			'person',
+			'projektarbeit'
+		]);
+
+		// Load models
+		$this->load->model('education/Projektarbeit_model', 'ProjektarbeitModel');
+		$this->load->model('education/Projekttyp_model', 'ProjekttypModel');
+		$this->load->model('education/Paabgabe_model', 'PaabgabeModel');
+		$this->load->model('ressource/Firma_model', 'FirmaModel');
+		$this->load->model('education/Lehrveranstaltung_model', 'LehrveranstaltungModel');
+		$this->load->model('education/Lehreinheit_model', 'LehreinheitModel');
+		$this->load->model('ressource/Mitarbeiter_model', 'MitarbeiterModel');
+		$this->load->model('education/Note_model', 'NoteModel');
+		$this->load->model('education/Projektbetreuer_model', 'BetreuerModel');
+		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+
+		// load libraries
+		$this->load->library('PermissionLib');
+	}
+
+	/**
+	 * Get projekt works for a uid.
+	 */
+	public function getProjektarbeit()
+	{
+		$student_uid = $this->input->get('uid');
+
+		if (!isset($student_uid)) $this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Student UID']), self::ERROR_TYPE_GENERAL);
+
+		$result = $this->ProjektarbeitModel->getProjektarbeit($student_uid);
+
+		if (isError($result)) $this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		if (!hasData($result)) $this->terminateWithSuccess([]);
+
+		$projektarbeiten = getData($result);
+
+		foreach ($projektarbeiten as $projektarbeit)
+		{
+			$projektarbeit_id = $projektarbeit->projektarbeit_id;
+			$abgabeRes = $this->PaabgabeModel->getEndabgabe($projektarbeit_id);
+
+			if (isError($abgabeRes)) $this->terminateWithError(getError($abgabeRes), self::ERROR_TYPE_GENERAL);
+
+			if (hasData($abgabeRes))
+			{
+				$paabgabe = getData($abgabeRes)[0];
+				$projektarbeit->abgabedatum = $paabgabe->abgabedatum;
+			}
+		}
+
+		$this->terminateWithSuccess($projektarbeiten);
+	}
+
+	/**
+	 * Load a single Projektarbeit by id.
+	 */
+	public function loadProjektarbeit()
+	{
+		$projektarbeit_id = $this->input->get('projektarbeit_id');
+
+		if (!isset($projektarbeit_id) || !is_numeric($projektarbeit_id)) return $this->terminateWithError('Projektarbeit Id missing', self::ERROR_TYPE_GENERAL);
+
+		$this->ProjektarbeitModel->addSelect(
+			'lehre.tbl_projektarbeit.projektarbeit_id, titel, titel_english, themenbereich, projekttyp_kurzbz, lehrveranstaltung_id, lehreinheit_id, 
+			firma_id, beginn, ende, gesperrtbis, note, final, freigegeben, tbl_projektarbeit.anmerkung, fa.name AS firma_name'
+		);
+		$this->ProjektarbeitModel->addJoin('lehre.tbl_lehreinheit le', 'lehreinheit_id');
+		$this->ProjektarbeitModel->addJoin('lehre.tbl_lehrveranstaltung lv', 'lehrveranstaltung_id');
+		$this->ProjektarbeitModel->addJoin('public.tbl_firma fa', 'firma_id', 'LEFT');
+		$result = $this->ProjektarbeitModel->loadWhere(
+			array('projektarbeit_id' => $projektarbeit_id)
+		);
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess(current($data));
+	}
+
+	/**
+	 * Inwert a Projektarbeit.
+	 */
+	public function insertProjektarbeit()
+	{
+		$student_uid = $this->input->post('uid');
+
+		if (!$student_uid) return $this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Student UID']), self::ERROR_TYPE_GENERAL);
+
+		if (!$this->_hasBerechtigungForStudent($student_uid))
+			return $this->_outputAuthError([$this->router->method => ['admin:rw', 'assistenz:rw']]);
+
+		$formData = $this->input->post('formData');
+
+		if ($this->_validate($formData) == false)
+		{
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+		}
+
+		$projektarbeit = $this->_getProjektarbeitArr($formData);
+
+		$result = $this->ProjektarbeitModel->insert(
+			array_merge($projektarbeit, ['insertamum' => date('c'), 'insertvon' => getAuthUID(), 'student_uid' => $student_uid])
+		);
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess($data);
+	}
+
+	/**
+	 * Update a Projektarbeit by ID.
+	 */
+	public function updateProjektarbeit()
+	{
+		$projektarbeit_id = $this->input->post('projektarbeit_id');
+
+		if (!$projektarbeit_id || !is_numeric($projektarbeit_id))
+			return $this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Projektarbeit ID']), self::ERROR_TYPE_GENERAL);
+
+		if (!$this->ProjektarbeitModel->hasBerechtigungForProjektarbeit($projektarbeit_id))
+			return $this->_outputAuthError([$this->router->method => ['admin:rw', 'assistenz:rw']]);
+
+		$formData = $this->input->post('formData');
+
+		if ($this->_validate($formData) == false)
+		{
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+		}
+
+		$projektarbeit = $this->_getProjektarbeitArr($formData);
+
+		$result = $this->ProjektarbeitModel->update(
+			$projektarbeit_id,
+			array_merge($projektarbeit, ['updateamum' => date('c'), 'updatevon' => getAuthUID()])
+		);
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess($data);
+	}
+
+	/**
+	 * Delete Projektarbeit by ID after validation.
+	 */
+	public function deleteProjektarbeit()
+	{
+		$projektarbeit_id = $this->input->post('projektarbeit_id');
+
+		if (!isset($projektarbeit_id) || !is_numeric($projektarbeit_id))
+			return $this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Projektarbeit ID'], self::ERROR_TYPE_GENERAL));
+
+		if (!$this->ProjektarbeitModel->hasBerechtigungForProjektarbeit($projektarbeit_id))
+			return $this->_outputAuthError([$this->router->method => ['admin:rw', 'assistenz:rw']]);
+
+		$validate = $this->_validateDelete($projektarbeit_id);
+
+		if (isError($validate)) return $this->terminateWithError(getError($validate), self::ERROR_TYPE_GENERAL);
+
+		$result = $this->ProjektarbeitModel->delete(
+			['projektarbeit_id' => $projektarbeit_id]
+		);
+
+		if (isError($result)) return $this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		if (!hasData($result))
+		{
+			$this->outputJson($result);
+		}
+
+		return $this->terminateWithSuccess(current(getData($result)) ? : null);
+	}
+
+	/**
+	 * Get all active projekt work types.
+	 */
+	public function getTypenProjektarbeit()
+	{
+		$result = $this->ProjekttypModel->loadWhere(['aktiv' => true]);
+
+		if (isError($result)) return $this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		return $this->terminateWithSuccess(hasData($result) ? getData($result) : []);
+	}
+
+	/**
+	 * Gets companies by search string.
+	 */
+	public function getFirmen()
+	{
+		$searchString = $this->input->get('searchString');
+
+		if (!isset($searchString))
+			$this->terminateWithError($this->p->t('ui', 'error_fieldRequired', ['field' => 'Search term']), self::ERROR_TYPE_GENERAL);
+
+		$result = $this->FirmaModel->searchFirmen($searchString, $aktiv = true);
+
+		if (isError($result)) return $this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		return $this->terminateWithSuccess(hasData($result) ? getData($result) : []);
+	}
+
+	/**
+	 * Get Lehrveranstaltungen by params, incling lehreinheiten for a specific Studiensemester..
+	 */
+	public function getLehrveranstaltungen()
+	{
+		$student_uid = $this->input->get('student_uid');
+		$studiengang_kz = $this->input->get('studiengang_kz');
+		$studiensemester_kurzbz = $this->input->get('studiensemester_kurzbz');
+		$additional_lehrveranstaltung_id = $this->input->get('additional_lehrveranstaltung_id');
+
+		if (!isset($student_uid)) $this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Student UID']), self::ERROR_TYPE_GENERAL);
+		if (!isset($studiensemester_kurzbz)) $this->terminateWithError('Studiensemster missing', self::ERROR_TYPE_GENERAL);
+
+		// get Lvs
+		$lvsResult = $this->LehrveranstaltungModel->getLvsForProjektarbeit($student_uid, $studiengang_kz, $additional_lehrveranstaltung_id);
+
+		if (isError($lvsResult)) return $this->terminateWithError($lvsResult, self::ERROR_TYPE_GENERAL);
+
+		$lvs = hasData($lvsResult) ? getData($lvsResult) : [];
+
+		foreach ($lvs as $lv)
+		{
+			// add Lehreinheiten for each Lv for the semester
+			$lehreinheiten = $this->LehreinheitModel->getLesForLv(
+				$lv->lehrveranstaltung_id, $studiensemester_kurzbz
+			);
+
+			foreach ($lehreinheiten as $lehreinheit)
+			{
+				if (!isEmptyArray($lehreinheit->lektoren))
+				{
+					$this->MitarbeiterModel->addSelect('kurzbz');
+					$this->MitarbeiterModel->db->where_in('tbl_mitarbeiter.mitarbeiter_uid', $lehreinheit->lektoren);
+					$maResult = $this->MitarbeiterModel->load();
+
+					if (isError($maResult)) return $this->terminateWithError($lvsResult, self::ERROR_TYPE_GENERAL);
+
+					$lehreinheit->lektoren = array_column(getData($maResult), 'kurzbz');
+				}
+			}
+
+			$lv->lehreinheiten = $lehreinheiten;
+		}
+
+		return $this->terminateWithSuccess($lvs);
+	}
+
+	/**
+	 * Get all noten.
+	 */
+	public function getNoten()
+	{
+		$this->NoteModel->addOrder('notenwert', 'ASC');
+		$this->NoteModel->addOrder('bezeichnung', 'ASC');
+
+		$result = $this->NoteModel->load();
+
+		if (isError($result)) return $this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		return $this->terminateWithSuccess(hasData($result) ? getData($result) : []);
+	}
+
+	/**
+	 * Get all Studiensemester, sorted.
+	 */
+	public function getStudiensemester()
+	{
+		$this->StudiensemesterModel->addOrder('start', 'DESC');
+		$result = $this->StudiensemesterModel->load();
+
+		if (isError($result)) return $this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		return $this->terminateWithSuccess(hasData($result) ? getData($result) : []);
+	}
+
+	/**
+	 * Validate Projektarbeit data.
+	 * @param formData
+	 * @return bool true if data valid
+	 */
+	private function _validate($formData)
+	{
+		$this->form_validation->set_data($formData);
+
+		$this->form_validation->set_rules('projekttyp_kurzbz', 'Projekttyp', 'required', [
+			'required' => $this->p->t('ui', 'error_fieldRequired', ['field' => 'Projekttyp'])
+		]);
+
+		$this->form_validation->set_rules('lehreinheit_id', 'Lehreinheit', 'required|is_natural', [
+			'required' => $this->p->t('ui', 'error_fieldRequired', ['field' => 'Lehreinheit']),
+			'is_natural' =>  $this->p->t('ui', 'error_fieldNotNumeric', ['field' => 'Lehreinheit'])
+		]);
+
+		$this->form_validation->set_rules('beginn', 'Beginn', 'is_valid_date', [
+			'is_valid_date' => $this->p->t('ui', 'error_notValidDate', ['field' => 'Beginn'])
+		]);
+
+		$this->form_validation->set_rules('ende', 'Ende', 'is_valid_date', [
+			'is_valid_date' => $this->p->t('ui', 'error_notValidDate', ['field' => 'Ende'])
+		]);
+
+		$this->form_validation->set_rules('gesperrtbis', 'Ende', 'is_valid_date', [
+			'is_valid_date' => $this->p->t('ui', 'error_notValidDate', ['field' => 'Gesperrt bis'])
+		]);
+
+		return $this->form_validation->run();
+	}
+
+	/**
+	 * Extract Projektarbeit data from passed form data.
+	 * @param formData
+	 * @return array
+	 */
+	private function _getProjektarbeitArr($formData)
+	{
+		return [
+			'titel' => $formData['titel'],
+			'titel_english' => $formData['titel_english'] ?? null,
+			'themenbereich' => $formData['themenbereich'] ?? null,
+			'projekttyp_kurzbz' => $formData['projekttyp_kurzbz'],
+			'firma_id' => $formData['firma_id'] ?? null,
+			'lehreinheit_id' => $formData['lehreinheit_id'],
+			'beginn' => isset($formData['beginn']) && !isEmptyString($formData['beginn']) ? $formData['beginn'] : null,
+			'ende' => isset($formData['ende']) && !isEmptyString($formData['ende']) ? $formData['ende'] : null,
+			'note' => $formData['note'] ?? null,
+			'final' => $formData['final'] ?? null,
+			'freigegeben' => $formData['freigegeben'] ?? null,
+			'anmerkung' => $formData['anmerkung'] ?? null,
+			'gesperrtbis' => isset($formData['gesperrtbis']) && !isEmptyString($formData['gesperrtbis']) ? $formData['gesperrtbis'] : null
+		];
+	}
+
+	/**
+	 * Check if deletion of a Projektarbeit is possible.
+	 * @param $projektarbeit_id
+	 * @return object success if deletion possible, error otherwise.
+	 */
+	private function _validateDelete($projektarbeit_id)
+	{
+		$this->BetreuerModel->addSelect('1');
+		$result = $this->BetreuerModel->loadWhere(['projektarbeit_id' => $projektarbeit_id]);
+
+		if (isError($result)) return $result;
+
+		if (hasData($result)) return error($this->p->t('projektarbeit', 'error_betreuerNichtGeloescht'));
+
+		$this->PaabgabeModel->addSelect('1');
+		$result = $this->PaabgabeModel->loadWhere(['projektarbeit_id' => $projektarbeit_id]);
+
+		if (isError($result)) return $result;
+
+		if (hasData($result)) return error($this->p->t('projektarbeit', 'error_paabgabeNichtGeloescht'));
+
+		return success();
+	}
+
+	/**
+	 * Checks permissions for a student.
+	 * @param $student_uid
+	 * @return bool true if authorized
+	 */
+	private function _hasBerechtigungForStudent($student_uid)
+	{
+		if (!$student_uid)
+			return false;
+
+		$this->load->model('crm/Student_model', 'StudentModel');
+
+		$this->StudentModel->addSelect('studiengang_kz');
+		$result = $this->StudentModel->load([$student_uid]);
+		if (isError($result) || !hasData($result))
+			return false;
+
+		$studiengang_kz = getData($result)[0]->studiengang_kz;
+
+		if ($this->permissionlib->isBerechtigt('admin', 'suid', $studiengang_kz))
+			return true;
+		if ($this->permissionlib->isBerechtigt('assistenz', 'suid', $studiengang_kz))
+			return true;
+
+		return false;
+	}
+}
@@ -0,0 +1,435 @@
+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+use \DateTime as DateTime;
+use \CI3_Events as Events;
+
+class Projektbetreuer extends FHCAPI_Controller
+{
+	public function __construct()
+	{
+		parent::__construct([
+			'getProjektbetreuer' => ['admin:r', 'assistenz:r'],
+			'saveProjektbetreuer' => ['admin:rw', 'assistenz:rw'],
+			'deleteProjektbetreuer' => ['admin:rw', 'assistenz:rw'],
+			'getBetreuerarten' => ['admin:r', 'assistenz:r'],
+			'getNoten' => ['admin:r', 'assistenz:r'],
+			'getDefaultStundensaetze' => ['admin:r', 'assistenz:r'],
+			'getProjektbetreuerBySearchQuery' => ['admin:r', 'assistenz:r'],
+			'getPerson' => ['admin:r', 'assistenz:r'],
+			'validateProjektbetreuer' => ['admin:r', 'assistenz:r']
+		]);
+
+		// Load Libraries
+		$this->load->library('form_validation');
+
+		// Load language phrases
+		$this->loadPhrases([
+			'ui',
+			'person',
+			'projektarbeit'
+		]);
+
+		// Load models
+		$this->load->model('education/Projektbetreuer_model', 'ProjektbetreuerModel');
+		$this->load->model('education/Betreuerart_model', 'BetreuerartModel');
+		$this->load->model('ressource/Stundensatz_model', 'StundensatzModel');
+		$this->load->model('education/Projektarbeit_model', 'ProjektarbeitModel');
+		$this->load->model('education/Note_model', 'NoteModel');
+		$this->load->model('person/Person_model', 'PersonModel');
+
+		// load libraries
+		$this->load->library('PermissionLib');
+	}
+
+	/**
+	 * Gets Projektbetreuer data for a Projektarbeit.
+	 */
+	public function getProjektbetreuer()
+	{
+		$projektarbeit_id = $this->input->get('projektarbeit_id');
+
+		if (!isset($projektarbeit_id))
+			$this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Projektarbeit ID']), self::ERROR_TYPE_GENERAL);
+
+		$qry = "
+			SELECT * FROM (
+				SELECT
+					projektarbeit_id, person_id, nachname, vorname, note, punkte, round(stunden, 1) AS stunden,
+					stundensatz, betreuerart_kurzbz, vertrag_id, titelpre, titelpost,
+					CASE
+						WHEN EXISTS
+							(SELECT 1 FROM public.tbl_benutzer JOIN public.tbl_mitarbeiter ON(uid=mitarbeiter_uid) WHERE person_id=pers.person_id)
+						THEN 'Mitarbeiter'
+						WHEN EXISTS
+							(SELECT 1 FROM public.tbl_benutzer JOIN public.tbl_student ON(uid=student_uid) WHERE person_id=pers.person_id)
+						THEN 'Student'
+						ELSE 'Person'
+					END AS status
+				FROM
+					lehre.tbl_projektbetreuer
+					JOIN public.tbl_person pers USING (person_id)
+				WHERE
+					projektarbeit_id = ?
+			) betreuer
+			ORDER BY
+				CASE WHEN status = 'Mitarbeiter' THEN 0 WHEN status = 'Person' THEN 1 ELSE 2 END";
+
+		$result = $this->ProjektbetreuerModel->execReadOnlyQuery($qry, [$projektarbeit_id]);
+
+		if (isError($result)) $this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		if (!hasData($result)) $this->terminateWithSuccess([]);
+
+		$projektbetreuer = getData($result);
+
+		//~ foreach ($projektbetreuer as $projektarbeit)
+		//~ {
+			//~ $projektarbeit_id = $projektarbeit->projektarbeit_id;
+			//~ $abgabeRes = $this->PaabgabeModel->getEndabgabe($projektarbeit_id);
+
+			//~ if (isError($abgabeRes)) $this->terminateWithError(getError($abgabeRes), self::ERROR_TYPE_GENERAL);
+
+			//~ if (hasData($abgabeRes))
+			//~ {
+				//~ $paabgabe = getData($abgabeRes)[0];
+				//~ $projektarbeit->abgabedatum = $paabgabe->abgabedatum;
+			//~ }
+		//~ }
+
+		// add thesis download link (from external extension)
+		foreach ($projektbetreuer as $pb)
+		{
+			$downloadLink = null;
+			Events::trigger(
+				'projektbeurteilung_download_link',
+				$pb->projektarbeit_id,
+				$pb->betreuerart_kurzbz,
+				$pb->person_id,
+				function ($value) use (&$downloadLink) {
+					$downloadLink = $value;
+				}
+			);
+			$pb->beurteilungDownloadLink = $downloadLink;
+		}
+
+		$this->terminateWithSuccess($this->_addFullNameToBetreuer($projektbetreuer));
+	}
+
+	/**
+	 * Saves (adds or updates) a single Projektbetreuer for a Projektarbeit.
+	 */
+	public function saveProjektbetreuer()
+	{
+		$projektarbeit_id = $this->input->post('projektarbeit_id');
+
+		if (!isset($projektarbeit_id) || !is_numeric($projektarbeit_id))
+			return $this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Projektarbeit ID']), self::ERROR_TYPE_GENERAL);
+
+		if (!$this->ProjektarbeitModel->hasBerechtigungForProjektarbeit($projektarbeit_id))
+			return $this->_outputAuthError([$this->router->method => ['admin:rw', 'assistenz:rw']]);
+
+		$projektbetreuer = $this->input->post('projektbetreuer');
+
+		if ($this->_validate($projektbetreuer) == false) $this->terminateWithValidationErrors($this->form_validation->error_array());
+
+		// check if assessor has already been assigned
+		if (isset($projektbetreuer['person_id']))
+		{
+			$this->ProjektbetreuerModel->addSelect('1');
+			$betreuerRes = $this->ProjektbetreuerModel->loadWhere(
+				[
+					'person_id' => $projektbetreuer['person_id'],
+					'projektarbeit_id' => $projektbetreuer['projektarbeit_id'],
+					'betreuerart_kurzbz' => $projektbetreuer['betreuerart_kurzbz']
+				]
+			);
+
+			if (hasData($betreuerRes)
+				&& (!isset($projektbetreuer['person_id_old']) || $projektbetreuer['person_id'] != $projektbetreuer['person_id_old'])) {
+				return $this->terminateWithError($this->p->t('projektarbeit', 'betreuerZugewiesen'), self::ERROR_TYPE_GENERAL);
+			}
+		}
+
+		$result = null;
+
+		$stunden = isset($projektbetreuer['stunden']) && !isEmptyString($projektbetreuer['stunden']) ? $projektbetreuer['stunden'] : null;
+		$stundensatz =
+			isset($projektbetreuer['stundensatz']) && !isEmptyString($projektbetreuer['stundensatz']) ? $projektbetreuer['stundensatz'] : null;
+
+		$betreuer = [
+			'projektarbeit_id' => $projektarbeit_id,
+			'person_id' => $projektbetreuer['person_id'],
+			'note' => $projektbetreuer['note'],
+			'stunden' => $stunden,
+			'stundensatz' => $stundensatz,
+			'betreuerart_kurzbz' => $projektbetreuer['betreuerart_kurzbz']
+		];
+
+		if (isset($projektbetreuer['person_id_old']) && isset($projektbetreuer['betreuerart_kurzbz_old']))
+		{
+			$result = $this->ProjektbetreuerModel->update(
+				[
+					'projektarbeit_id' => $projektarbeit_id,
+					'person_id' => $projektbetreuer['person_id_old'],
+					'betreuerart_kurzbz' => $projektbetreuer['betreuerart_kurzbz_old']
+				],
+				array_merge($betreuer, ['updateamum' => date('c'), 'updatevon' => getAuthUID()])
+			);
+		}
+		else
+		{
+			$result = $this->ProjektbetreuerModel->insert(
+				array_merge($betreuer, ['insertamum' => date('c'), 'insertvon' => getAuthUID()])
+			);
+		}
+
+		if (isError($result)) $this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		$this->terminateWithSuccess(hasData($result) ? getData($result) : []);
+	}
+
+	/**
+	 * Delete a Projektbetreuer assignment to a Projektarbeit.
+	 */
+	public function deleteProjektbetreuer()
+	{
+		$projektarbeit_id = $this->input->post('projektarbeit_id');
+		$person_id = $this->input->post('person_id');
+		$betreuerart_kurzbz = $this->input->post('betreuerart_kurzbz');
+
+		if (!isset($projektarbeit_id) || !is_numeric($projektarbeit_id))
+		{
+			return $this->terminateWithError(
+				$this->p->t('ui', 'error_missingId', ['id'=> $this->p->t('projektarbeit', 'projektarbeit').' ID'], self::ERROR_TYPE_GENERAL)
+			);
+		}
+
+		if (!isset($person_id) || !is_numeric($person_id))
+			return $this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Person ID'], self::ERROR_TYPE_GENERAL));
+
+		if (!isset($betreuerart_kurzbz))
+		{
+			return $this->terminateWithError(
+				$this->p->t('ui', 'error_missingId', ['id'=> $this->p->t('projektarbeit', 'betreuerart')], self::ERROR_TYPE_GENERAL)
+			);
+		}
+
+		// check permission
+		if (!$this->ProjektarbeitModel->hasBerechtigungForProjektarbeit($projektarbeit_id))
+			return $this->_outputAuthError([$this->router->method => ['admin:rw', 'assistenz:rw']]);
+
+		$validate = $this->_validateDelete($projektarbeit_id, $person_id, $betreuerart_kurzbz);
+
+		if (isError($validate)) return $this->terminateWithError(getError($validate), self::ERROR_TYPE_GENERAL);
+
+		// check if there is a Projektarbeitsbeurteilung - if yes, it is handled (possibly deleted) by external extension.
+		$beurteilungDeleteSuccess = true;
+
+		Events::trigger(
+			'projektarbeitsbeurteilung_delete',
+			$projektarbeit_id,
+			function ($value) use (&$beurteilungDeleteSuccess) {
+				$beurteilungDeleteSuccess = $value;
+			}
+		);
+
+		// if there is still a Beurteilung, Projektarbeit cannot be deleted - return with error
+		if (!$beurteilungDeleteSuccess) return $this->terminateWithError($this->p->t('projektarbeit', 'error_paarbeitHatBeurteilung'));
+
+		$result = $this->ProjektbetreuerModel->delete(
+			['projektarbeit_id' => $projektarbeit_id, 'person_id' => $person_id, 'betreuerart_kurzbz' => $betreuerart_kurzbz]
+		);
+
+		if (isError($result)) return $this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		if (!hasData($result))
+		{
+			$this->outputJson($result);
+		}
+
+		return $this->terminateWithSuccess(getData($result));
+	}
+
+	/**
+	 * Get all active Betreuerarten.
+	 */
+	public function getBetreuerarten()
+	{
+		$result = $this->BetreuerartModel->loadWhere(['aktiv' => true]);
+
+		if (isError($result)) return $this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		return $this->terminateWithSuccess(hasData($result) ? getData($result) : []);
+	}
+
+	/**
+	 * Get all Noten.
+	 */
+	public function getNoten()
+	{
+		$result = $this->NoteModel->load();
+
+		if (isError($result)) return $this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		return $this->terminateWithSuccess(hasData($result) ? getData($result) : []);
+	}
+
+	/**
+	 * Get default Stundensätze for an employee in a semester.
+	 */
+	public function getDefaultStundensaetze()
+	{
+		$person_id = $this->input->get('person_id');
+		$studiensemester_kurzbz = $this->input->get('studiensemester_kurzbz');
+
+		$result = $this->StundensatzModel->getStundensatzForMitarbeiter($person_id, $studiensemester_kurzbz);
+
+		return $this->terminateWithSuccess($result);
+	}
+
+	/**
+	 * Get all Projektbetreuer by search string.
+	 */
+	public function getProjektbetreuerBySearchQuery()
+	{
+		$searchString = $this->input->get('searchString');
+
+		if (!isset($searchString))
+			$this->terminateWithError($this->p->t('ui', 'error_fieldRequired', ['field' => 'Search term']), self::ERROR_TYPE_GENERAL);
+
+		$result = $this->PersonModel->searchPerson($searchString);
+
+		if (isError($result)) return $this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		if (!hasData($result)) $this->terminateWithSuccess([]);
+
+		$persons = $this->_addFullNameToBetreuer(getData($result));
+
+		// sort persons by type (employees first)
+		usort($persons, function ($a, $b) {
+			$statusRanks = ['Mitarbeiter' => 0, 'Person' => 1, 'Student' => 2];
+			return (isset($statusRanks[$a->status]) ? $statusRanks[$a->status] : count($statusRanks) + 1)
+				- (isset($statusRanks[$b->status]) ? $statusRanks[$b->status] : count($statusRanks) + 1);
+		});
+
+		return $this->terminateWithSuccess($persons);
+	}
+
+	/**
+	 * Get person info by Id.
+	 */
+	public function getPerson()
+	{
+		$person_id = $this->input->get('person_id');
+
+		if (!isset($person_id))
+			$this->terminateWithError($this->p->t('ui', 'error_fieldRequired', ['field' => 'Person']), self::ERROR_TYPE_GENERAL);
+
+		$this->PersonModel->addSelect("CASE
+				WHEN EXISTS
+					(SELECT 1 FROM public.tbl_benutzer JOIN public.tbl_mitarbeiter ON(uid=mitarbeiter_uid) WHERE person_id=tbl_person.person_id)
+				THEN 'Mitarbeiter'
+				WHEN EXISTS
+					(SELECT 1 FROM public.tbl_benutzer JOIN public.tbl_student ON(uid=student_uid) WHERE person_id=tbl_person.person_id)
+				THEN 'Student'
+				ELSE 'Person'
+			END AS status");
+		$result = $this->PersonModel->addSelect('titelpre, titelpost, vorname, nachname, person_id');
+		$result = $this->PersonModel->load($person_id);
+
+		if (isError($result)) return $this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		return $this->terminateWithSuccess(hasData($result) ? $this->_addFullNameToBetreuer(getData($result))[0] : []);
+	}
+
+	/**
+	 * Validate list of Projektbetreuer.
+	 */
+	public function validateProjektbetreuer()
+	{
+		$projektbetreuerArr = $this->input->post('projektbetreuer');
+
+		if (!is_array($projektbetreuerArr)) $projektbetreuerArr = [$projektbetreuerArr];
+
+		foreach ($projektbetreuerArr as $pb)
+		{
+			if ($this->_validate($pb) == false)
+			{
+				$this->terminateWithValidationErrors($this->form_validation->error_array());
+			}
+		}
+
+		$this->terminateWithSuccess([]);
+	}
+
+	/**
+	 * Validation funciton for checking Projektbetreuer input.
+	 * @param $formData Betreuer data
+	 * @return bool true when data is valid
+	 */
+	private function _validate($formData)
+	{
+		$this->form_validation->set_data($formData);
+
+		$this->form_validation->set_rules('betreuerart_kurzbz', 'Betreuerart', 'required', [
+			'required' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('projektarbeit', 'betreuerart')])
+		]);
+
+		$this->form_validation->set_rules('person_id', 'Person', 'required', [
+			'required' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('projektarbeit', 'betreuer')])
+		]);
+
+		$this->form_validation->set_rules('stunden', 'Stunden', 'numeric', [
+			'numeric' => $this->p->t('ui', 'error_fieldNotNumeric', ['field' => $this->p->t('projektarbeit', 'stunden')])
+		]);
+
+		$this->form_validation->set_rules('stundensatz', 'Stundensatz', 'numeric', [
+			'numeric' => $this->p->t('ui', 'error_fieldNotNumeric', ['field' =>  $this->p->t('projektarbeit', 'stundensatz')])
+		]);
+
+
+		return $this->form_validation->run();
+	}
+
+	/**
+	 * Check possibility of deletion of a Projektbetreuer.
+	 * @param projektarbeit_id
+	 * @param person_id
+	 * @param betreuerart_kurzbz
+	 * @return object success when delete possible, error otherwise
+	 */
+	private function _validateDelete($projektarbeit_id, $person_id, $betreuerart_kurzbz)
+	{
+		// check if contract exists
+		$this->ProjektbetreuerModel->addSelect('vertrag_id');
+		$result = $this->ProjektbetreuerModel->loadWhere(
+			['projektarbeit_id' => $projektarbeit_id, 'person_id' => $person_id, 'betreuerart_kurzbz' => $betreuerart_kurzbz]
+		);
+
+		if (isError($result)) return $result;
+
+		// if contract exists, no deletion is possible
+		if (hasData($result) && getData($result)[0]->vertrag_id != null) return error($this->p->t('projektarbeit', 'error_betreuerHatVertrag'));
+
+		return success();
+	}
+
+	/**
+	 * Add full name to array with Betreuer.
+	 * @param $betreuerArr
+	 * @return array including Betreuer with their full names
+	 */
+	private function _addFullNameToBetreuer($betreuerArr)
+	{
+		foreach ($betreuerArr as $betreuer)
+		{
+			$betreuer->name = ($betreuer->titelpre ? $betreuer->titelpre . ' ' : '') .
+				$betreuer->nachname . ' ' . $betreuer->vorname . ($betreuer->titelpost ? ' ' . $betreuer->titelpre : '').
+				' (' . $betreuer->status . ')';
+		}
+
+		return $betreuerArr;
+	}
+}
@@ -18,6 +18,8 @@

 if (! defined('BASEPATH')) exit('No direct script access allowed');

+use \DateTime as DateTime;
+
 /**
 * This controller operates between (interface) the JS (GUI) and the back-end
 * Provides data to the ajax get calls about addresses
@@ -111,7 +113,7 @@ class Pruefung extends FHCAPI_Controller

 		// Load language phrases
 		$this->loadPhrases([
-			'global', 'ui','lehre'
+			'global', 'ui', 'lehre', 'exam'
 		]);
 	}

@@ -172,174 +174,11 @@ class Pruefung extends FHCAPI_Controller
 	 *
 	 * @param lehrveranstaltung_id, student_uid, lehreinheit_id
 	 *
-	 * @return values on success
-	 * 			retval 0: pruefung inserted
-	 * 			reval 1: pruefung and zeugnisnote inserted
-	 * 			retval 2: pruefung inserted, no insert Zeugnisnote
-	 * 					(change after date of examination)
-	 * 			retval 3: pruefung of type Termin2 inserted
-	 * 						and pruefung of type Termin1 as well
-	 *			retval 5: prueufungen Termin 2 and 1 inserted
-	 * 						and no insert Zeugnisnote (change after date of examination)
+	 * @return void
 	 */
 	public function insertPruefung()
 	{
-		$authUID = getAuthUID();
-
-		$this->load->library('form_validation');
-
-		$this->form_validation->set_rules('lehrveranstaltung_id', $this->p->t('lehre', 'lehrveranstaltung'), 'required', [
-			'required' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('lehre', 'lehrveranstaltung')]),
-		]);
-		$this->form_validation->set_rules('lehreinheit_id', $this->p->t('lehre', 'lehreinheit'), 'required', [
-			'required' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('lehre', 'lehreinheit')]),
-		]);
-		$this->form_validation->set_rules('pruefungstyp_kurzbz', $this->p->t('lehre', 'pruefung'), 'required', [
-			'required' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('global', 'typ')]),
-		]);
-		$this->form_validation->set_rules(
-			'datum',
-			$this->p->t('global', 'datum'),
-			['is_valid_date']
-		);
-
-		if ($this->form_validation->run() == false)
-		{
-			$this->terminateWithValidationErrors($this->form_validation->error_array());
-		}
-
-		//calculate studiensemester_kurzbz this from lehreinheit (case newPruefung)
-		$studiensemester_kurzbz = $this->input->post('studiensemester_kurzbz');
-		if (!$studiensemester_kurzbz)
-		{
-			$this->load->model('education/Lehreinheit_model', 'LehreinheitModel');
-
-			$result = $this->LehreinheitModel->load($this->input->post('lehreinheit_id'));
-
-			$lehreinheit = $this->getDataOrTerminateWithError($result);
-			$studiensemester_kurzbz = current($lehreinheit)->studiensemester_kurzbz;
-
-			if (isError($result))
-			{
-				$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
-			}
-		}
-
-		$result = $this->PruefungModel->insert([
-			'lehreinheit_id' => $this->input->post('lehreinheit_id'),
-			'student_uid' => $this->input->post('student_uid'),
-			'mitarbeiter_uid' => $this->input->post('mitarbeiter_uid'),
-			'datum' => $this->input->post('datum'),
-			'pruefungstyp_kurzbz' => $this->input->post('pruefungstyp_kurzbz'),
-			'note' => $this->input->post('note'),
-			'anmerkung' => $this->input->post('anmerkung'),
-			'insertamum' => date('c'),
-			'insertvon' => $authUID,
-		]);
-
-		$this->getDataOrTerminateWithError($result);
-
-		//check if existing zeugnisnote
-		$this->load->model('education/Zeugnisnote_model', 'ZeugnisnoteModel');
-
-		$result = $this->ZeugnisnoteModel->loadWhere(array(
-			'lehrveranstaltung_id' => $this->input->post('lehrveranstaltung_id'),
-			'student_uid' => $this->input->post('student_uid'),
-			'studiensemester_kurzbz' => $studiensemester_kurzbz));
-
-		if (isError($result))
-		{
-			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
-		}
-
-		if (!hasData($result))
-		{
-			//insert zeugnisnote, if not existing
-			$result = $this->ZeugnisnoteModel->insert(array(
-				'lehrveranstaltung_id' => $this->input->post('lehrveranstaltung_id'),
-				'student_uid' => $this->input->post('student_uid'),
-				'studiensemester_kurzbz' => $studiensemester_kurzbz,
-				'note' => $this->input->post('note'),
-				'uebernahmedatum' => date('c'),
-				'benotungsdatum' => $this->input->post('datum'),
-				'insertamum' => date('c'),
-				'insertvon' =>  $authUID
-			));
-
-			if (isError($result))
-			{
-				$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
-			}
-			$this->terminateWithSuccess(1);
-		}
-
-		$return_code = 0;
-
-		//handling Termin1 if not existing
-		if($this->input->post('pruefungstyp_kurzbz') == "Termin2")
-		{
-			$resultP = $this->PruefungModel->loadWhere(array(
-				'lehreinheit_id' => $this->input->post('lehreinheit_id'),
-				'student_uid' => $this->input->post('student_uid'),
-				'pruefungstyp_kurzbz' => 'Termin1'));
-
-			if (isError($resultP))
-			{
-				$this->terminateWithError(getError($resultP), self::ERROR_TYPE_GENERAL);
-			}
-			if(!hasData($resultP))
-			{
-				//check if existing Zeugnisnote
-				$this->load->model('education/Zeugnisnote_model', 'ZeugnisnoteModel');
-				$this->ZeugnisnoteModel->addJoin('lehre.tbl_lehreinheit', 'lehrveranstaltung_id');
-
-				$resultP = $this->ZeugnisnoteModel->loadWhere(array(
-					'lehrveranstaltung_id' => $this->input->post('lehrveranstaltung_id'),
-					'student_uid' => $this->input->input->post('student_uid'),
-					'lehre.tbl_zeugnisnote.studiensemester_kurzbz' => $studiensemester_kurzbz));
-				if (isError($resultP))
-				{
-					$this->terminateWithError(getError($resultP), self::ERROR_TYPE_GENERAL);
-				}
-				if (!hasData($resultP))
-				{
-					$this->terminateWithError("Zeugnisnote existiert nicht", self::ERROR_TYPE_GENERAL);
-				}
-				$dataNote = current(getData($resultP));
-
-				$resultN = $this->PruefungModel->insert([
-					'lehreinheit_id' => $this->input->post('lehreinheit_id'),
-					'student_uid' => $this->input->post('student_uid'),
-					'mitarbeiter_uid' => $this->input->post('mitarbeiter_uid'),
-					'datum' => $dataNote->benotungsdatum,
-					'pruefungstyp_kurzbz' => 'Termin1',
-					'note' => $dataNote->note,
-					'punkte' => $dataNote->punkte,
-					'anmerkung' => 'automatisiert aus Zeugnisnote erstellt',
-					'insertamum' => date('c'),
-					'insertvon' => $authUID,
-				]);
-
-				if (isError($resultN)) {
-					$this->terminateWithError(getError($resultN), self::ERROR_TYPE_GENERAL);
-				}
-				$return_code = 3;
-			}
-		}
-
-		$note = current(getData($result));
-		$uebernahmedatum = new DateTime($note->uebernahmedatum);
-		$benotungsdatum = new DateTime($note->benotungsdatum);
-
-		$checkDate = $uebernahmedatum  === '' || $benotungsdatum  > $uebernahmedatum
-			? $benotungsdatum
-			: $uebernahmedatum;
-
-		if ($checkDate >= $this->input->post('datum') && $note !== $note->note)
-		{
-			$this->terminateWithSuccess($return_code + 2);
-		}
-		$this->terminateWithSuccess($return_code + 2);
+		$this->insertOrUpdatePruefung();
 	}

 	/**
@@ -348,8 +187,6 @@ class Pruefung extends FHCAPI_Controller
 	 * @param pruefung_id
 	 *
 	 * @return success or error
-	 *
-	 * no impact on lehre.tbl_zeugnisnote
 	 */
 	public function updatePruefung($pruefung_id)
 	{
@@ -359,48 +196,7 @@ class Pruefung extends FHCAPI_Controller
 		if (!$oldpruefung)
 			show_404(); // Pruefung that should be updated does not exist

-		$authUID = getAuthUID();
-
-		$this->load->library('form_validation');
-
-		$this->form_validation->set_rules('lehrveranstaltung_id', $this->p->t('lehre', 'lehrveranstaltung'), 'required', [
-			'required' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('lehre', 'lehrveranstaltung')]),
-		]);
-		$this->form_validation->set_rules('lehreinheit_id', $this->p->t('lehre', 'lehreinheit'), 'required', [
-			'required' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('lehre', 'lehreinheit')]),
-		]);
-		$this->form_validation->set_rules('pruefungstyp_kurzbz', $this->p->t('lehre', 'pruefung'), 'required', [
-			'required' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('global', 'typ')]),
-		]);
-		$this->form_validation->set_rules(
-			'datum',
-			$this->p->t('global', 'datum'),
-			['is_valid_date']
-		);
-
-		if ($this->form_validation->run() == false)
-		{
-			$this->terminateWithValidationErrors($this->form_validation->error_array());
-		}
-
-		$result = $this->PruefungModel->update(
-			[
-				'pruefung_id' => $pruefung_id
-			],
-			[	'lehreinheit_id' => $this->input->post('lehreinheit_id'),
-				'student_uid' =>  $this->input->post('student_uid'),
-				'mitarbeiter_uid' =>  $this->input->post('mitarbeiter_uid'),
-				'note' => $this->input->post('note'),
-				'pruefungstyp_kurzbz' => $this->input->post('pruefungstyp_kurzbz'),
-				'datum' => $this->input->post('datum'),
-				'anmerkung' => $this->input->post('anmerkung'),
-				'updatevon' => $authUID,
-				'updateamum' => date('c'),
-			]
-		);
-		$this->getDataOrTerminateWithError($result);
-
-		return $this->outputJsonSuccess(true);
+		$this->insertOrUpdatePruefung($pruefung_id);
 	}

 	/**
@@ -574,4 +370,198 @@ class Pruefung extends FHCAPI_Controller

 		return $this->terminateWithSuccess($data);
 	}
+
+	protected function insertOrUpdatePruefung($pruefung_id=null)
+	{
+		$authUID = getAuthUID();
+
+		$this->load->library('form_validation');
+
+		$this->form_validation->set_rules('lehreinheit_id', $this->p->t('lehre', 'lehreinheit'), 'required', [
+			'required' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('lehre', 'lehreinheit')]),
+		]);
+		$this->form_validation->set_rules('pruefungstyp_kurzbz', $this->p->t('lehre', 'pruefung'), 'required', [
+			'required' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('global', 'typ')]),
+		]);
+		$this->form_validation->set_rules(
+			'datum',
+			$this->p->t('global', 'datum'),
+			['is_valid_date']
+		);
+
+		if ($this->form_validation->run() == false)
+		{
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+		}
+
+		$this->load->model('education/Zeugnisnote_model', 'ZeugnisnoteModel');
+
+		$this->PruefungModel->db->trans_start();
+
+		if ($this->input->post('pruefungstyp_kurzbz') == "Termin2")
+		{
+			//Wenn ein 2. Termin angelegt wird, und kein 1. Termin vorhanden ist,
+			//dann wird auch ein 1. Termin angelegt mit der derzeitigen Zeugnisnote
+			$resultP = $this->PruefungModel->loadWhere(array(
+				'lehreinheit_id' => $this->input->post('lehreinheit_id'),
+				'student_uid' => $this->input->post('student_uid'),
+				'pruefungstyp_kurzbz' => 'Termin1'));
+
+			$termin1 = $this->getDataOrTerminateWithError($resultP);
+			if (!$termin1)
+			{
+				//check if existing Zeugnisnote
+				$this->ZeugnisnoteModel->addJoin('lehre.tbl_lehreinheit', 'lehrveranstaltung_id');
+
+				$this->ZeugnisnoteModel->db->where(
+					'lehre.tbl_zeugnisnote.studiensemester_kurzbz',
+					'lehre.tbl_lehreinheit.studiensemester_kurzbz',
+					false
+				);
+				$resultP = $this->ZeugnisnoteModel->loadWhere(array(
+					'lehrveranstaltung_id' => $this->input->post('lehrveranstaltung_id'),
+					'student_uid' => $this->input->post('student_uid')
+				));
+
+				$zeugnisnoten = $this->getDataOrTerminateWithError($resultP);
+				if ($zeugnisnoten)
+				{
+					$zeugnisnote = current($zeugnisnoten);
+
+					$resultN = $this->PruefungModel->insert([
+						'lehreinheit_id' => $this->input->post('lehreinheit_id'),
+						'student_uid' => $this->input->post('student_uid'),
+						'mitarbeiter_uid' => $this->input->post('mitarbeiter_uid'),
+						'datum' => $zeugnisnote->benotungsdatum,
+						'pruefungstyp_kurzbz' => 'Termin1',
+						'note' => $zeugnisnote->note,
+						'punkte' => $zeugnisnote->punkte,
+						'anmerkung' => 'automatisiert aus Zeugnisnote erstellt',
+						'insertamum' => date('c'),
+						'insertvon' => $authUID,
+					]);
+
+					$this->getDataOrTerminateWithError($resultN);
+				}
+				//Wenn keine Zeugnisnote vorhanden ist, dann wird kein
+				//1.Termin angelegt
+			}
+		}
+
+		if(intval($pruefung_id) > 0)
+		{
+			$result = $this->PruefungModel->update(
+				[
+					'pruefung_id' => $pruefung_id
+				],
+				[	'lehreinheit_id' => $this->input->post('lehreinheit_id'),
+					'student_uid' =>  $this->input->post('student_uid'),
+					'mitarbeiter_uid' =>  $this->input->post('mitarbeiter_uid'),
+					'note' => $this->input->post('note'),
+					'pruefungstyp_kurzbz' => $this->input->post('pruefungstyp_kurzbz'),
+					'datum' => $this->input->post('datum'),
+					'anmerkung' => $this->input->post('anmerkung'),
+					'updatevon' => $authUID,
+					'updateamum' => date('c'),
+				]
+			);
+		}
+		else
+		{
+			$result = $this->PruefungModel->insert([
+				'lehreinheit_id' => $this->input->post('lehreinheit_id'),
+				'student_uid' => $this->input->post('student_uid'),
+				'mitarbeiter_uid' => $this->input->post('mitarbeiter_uid'),
+				'datum' => $this->input->post('datum'),
+				'pruefungstyp_kurzbz' => $this->input->post('pruefungstyp_kurzbz'),
+				'note' => $this->input->post('note'),
+				'anmerkung' => $this->input->post('anmerkung'),
+				'insertamum' => date('c'),
+				'insertvon' => $authUID,
+				'punkte' => $this->input->post('punkte') ? str_replace(',', '.', $this->input->post('punkte')) : null
+			]);
+		}
+
+		$this->getDataOrTerminateWithError($result);
+
+		//get studiensemester_kurzbz and lehreveranstaltung_id from lehreinheit
+		$this->load->model('education/Lehreinheit_model', 'LehreinheitModel');
+
+		$result = $this->LehreinheitModel->load($this->input->post('lehreinheit_id'));
+
+		$lehreinheiten = $this->getDataOrTerminateWithError($result);
+
+		if (!$lehreinheiten) {
+			$this->terminateWithValidationErrors([
+				'lehreinheit_id' => $this->p->t('ui', 'error_fieldNotFound', [
+					'field' => $this->p->t('lehre', 'lehreinheit')
+				])
+			]);
+		}
+		$lehreinheit = current($lehreinheiten);
+		$studiensemester_kurzbz = $lehreinheit->studiensemester_kurzbz;
+		$lehrveranstaltung_id = $lehreinheit->lehrveranstaltung_id;
+
+		//check if existing zeugnisnote
+		$result = $this->ZeugnisnoteModel->loadWhere(array(
+			'lehrveranstaltung_id' => $lehrveranstaltung_id,
+			'student_uid' => $this->input->post('student_uid'),
+			'studiensemester_kurzbz' => $studiensemester_kurzbz
+		));
+
+		$zeugnisnoten = $this->getDataOrTerminateWithError($result);
+
+		if (!$zeugnisnoten)
+		{
+			//insert zeugnisnote, if not existing
+			$result = $this->ZeugnisnoteModel->insert(array(
+				'lehrveranstaltung_id' => $lehrveranstaltung_id,
+				'student_uid' => $this->input->post('student_uid'),
+				'studiensemester_kurzbz' => $studiensemester_kurzbz,
+				'note' => $this->input->post('note'),
+				'uebernahmedatum' => date('c'),
+				'benotungsdatum' => $this->input->post('datum'),
+				'insertamum' => date('c'),
+				'insertvon' =>  $authUID,
+				'punkte' => $this->input->post('punkte') ? str_replace(',', '.', $this->input->post('punkte')) : null
+			));
+
+			$this->getDataOrTerminateWithError($result);
+
+			$this->PruefungModel->db->trans_complete();
+			$this->terminateWithSuccess();
+		}
+
+		$note = current($zeugnisnoten);
+		$uebernahmedatum = new DateTime($note->uebernahmedatum);
+		$benotungsdatum = new DateTime($note->benotungsdatum);
+		$pruefungsdatum = new DateTime($this->input->post('datum'));
+
+		$checkDate = $note->uebernahmedatum === '' || $benotungsdatum > $uebernahmedatum
+			? $benotungsdatum
+			: $uebernahmedatum;
+
+		if ($checkDate > $pruefungsdatum && $this->input->post('note') !== $note->note)
+		{
+			$this->PruefungModel->db->trans_complete();
+			$this->terminateWithSuccess($this->p->t('exam', 'hinweis_changeAfterExamDate'));
+		}
+
+		//update zeugnisnote, if existing and valid datum
+		$result = $this->ZeugnisnoteModel->update([
+			'lehrveranstaltung_id' => $lehrveranstaltung_id,
+			'student_uid' => $this->input->post('student_uid'),
+			'studiensemester_kurzbz' => $studiensemester_kurzbz
+		], [
+			'note' => $this->input->post('note'),
+			'uebernahmedatum' => date('c'),
+			'benotungsdatum' => $this->input->post('datum'),
+			'updateamum' => date('c'),
+			'updatevon' =>  $authUID,
+			'punkte' => $this->input->post('punkte') ? str_replace(',', '.', $this->input->post('punkte')) : null
+		]);
+
+		$this->PruefungModel->db->trans_complete();
+		$this->terminateWithSuccess();
+	}
 }
@@ -114,9 +114,8 @@ class Status extends FHCAPI_Controller
 		$this->load->model('codex/Bismeldestichtag_model', 'BismeldestichtagModel');

 		$result = $this->BismeldestichtagModel->getLastReachedMeldestichtag();
-		$data = $this->getDataOrTerminateWithError($result);

-		$this->terminateWithSuccess($data);
+		$this->terminateWithSuccess(hasData($result) ? getData($result) : array());
 	}

 	public function isLastStatus($prestudent_id)
@@ -286,17 +285,17 @@ class Status extends FHCAPI_Controller
 		]);

 		$this->form_validation->set_rules('_default', '', [
-			['meldestichtag_not_exceeded', function () use ($datum, $isBerechtigtNoStudstatusCheck) {
+			['meldestichtag_not_exceeded', function () use ($datum_string, $isBerechtigtNoStudstatusCheck) {
 				if ($isBerechtigtNoStudstatusCheck)
 					return true; // Skip if access right says so

-				$result = $this->prestudentstatuschecklib->checkIfMeldestichtagErreicht($datum);
+				$result = $this->prestudentstatuschecklib->checkIfMeldestichtagErreicht($datum_string);

 				return !$this->getDataOrTerminateWithError($result);
 			}],
 			//Check if Rolle already exists
 			['rolle_doesnt_exist', function () use ($prestudent_id, $status_kurzbz, $studiensemester_kurzbz, $ausbildungssemester) {
-				if (!$status_kurzbz || !$studiensemester_kurzbz || !$ausbildungssemester)
+				if (!$status_kurzbz || !$studiensemester_kurzbz || !isset($ausbildungssemester) || $ausbildungssemester === '')
 					return true; // Error will be handled by the required statements above

 				$result = $this->PrestudentstatusModel->load([$ausbildungssemester, $studiensemester_kurzbz, $status_kurzbz, $prestudent_id]);
@@ -637,7 +636,7 @@ class Status extends FHCAPI_Controller

 		$this->load->library('PrestudentLib');

-		$this->prestudentlib->setFirstStudent(
+		$resFirstStudent = $this->prestudentlib->setFirstStudent(
 			$prestudent_id,
 			$lastAufgenommener->studiensemester_kurzbz,
 			$lastAufgenommener->ausbildungssemester,
@@ -646,9 +645,8 @@ class Status extends FHCAPI_Controller
 			$this->input->post('statusgrund_id')
 		);

-		$this->getDataOrTerminateWithError($result);
-
-		$this->db->trans_commit();
+		$this->db->trans_complete();
+		$this->getDataOrTerminateWithError($resFirstStudent);

 		return $this->outputJsonSuccess(true);
 	}
@@ -733,8 +731,9 @@ class Status extends FHCAPI_Controller
 				);

 			$result = $this->prestudentstatuschecklib->checkIfMeldestichtagErreicht($oldstatus->datum);
+			$isMeldestichtagErreicht = $this->getDataOrTerminateWithError($result);

-			if (!$this->getDataOrTerminateWithError($result))
+			if ($isMeldestichtagErreicht)
 				$this->terminateWithError(
 					$this->p->t('lehre', 'error_dataVorMeldestichtag'),
 					self::ERROR_TYPE_GENERAL,
@@ -902,7 +901,7 @@ class Status extends FHCAPI_Controller

 		$this->form_validation->set_rules('_default', '', [
 			['rolle_doesnt_exist', function () use ($prestudent_id, $status_kurzbz, $studiensemester_kurzbz, $ausbildungssemester) {
-				if (!$status_kurzbz || !$studiensemester_kurzbz || !$ausbildungssemester)
+				if (!$status_kurzbz || !$studiensemester_kurzbz || !isset($ausbildungssemester) || $ausbildungssemester === '')
 					return true; // Error will be handled by the required statements above

 				$result = $this->PrestudentstatusModel->load([$ausbildungssemester, $studiensemester_kurzbz, $status_kurzbz, $prestudent_id]);
@@ -919,7 +918,7 @@ class Status extends FHCAPI_Controller
 			) {
 				if ($isBerechtigtNoStudstatusCheck)
 					return true; // Skip if access right says so
-				if (!$status_kurzbz || !$datum || !$studiensemester_kurzbz || !$ausbildungssemester)
+				if (!$status_kurzbz || !$datum || !$studiensemester_kurzbz || !isset($ausbildungssemester) || $ausbildungssemester === '')
 					return true; // Error will be handled by the required statements above

 				$result = $this->prestudentstatuschecklib->checkStatusHistoryTimesequence(
@@ -944,7 +943,7 @@ class Status extends FHCAPI_Controller
 			) {
 				if ($isBerechtigtNoStudstatusCheck)
 					return true; // Skip if access right says so
-				if (!$status_kurzbz || !$datum || !$studiensemester_kurzbz || !$ausbildungssemester)
+				if (!$status_kurzbz || !$datum || !$studiensemester_kurzbz || !isset($ausbildungssemester) || $ausbildungssemester === '')
 					return true; // Error will be handled by the required statements above

 				$result = $this->prestudentstatuschecklib->checkStatusHistoryLaststatus(
@@ -969,7 +968,7 @@ class Status extends FHCAPI_Controller
 			) {
 				if ($isBerechtigtNoStudstatusCheck)
 					return true; // Skip if access right says so
-				if (!$status_kurzbz || !$datum || !$studiensemester_kurzbz || !$ausbildungssemester)
+				if (!$status_kurzbz || !$datum || !$studiensemester_kurzbz || !isset($ausbildungssemester) || $ausbildungssemester === '')
 					return true; // Error will be handled by the required statements above

 				$result = $this->prestudentstatuschecklib->checkStatusHistoryUnterbrechersemester(
@@ -994,7 +993,7 @@ class Status extends FHCAPI_Controller
 			) {
 				if ($isBerechtigtNoStudstatusCheck)
 					return true; // Skip if access right says so
-				if (!$status_kurzbz || !$datum || !$studiensemester_kurzbz || !$ausbildungssemester)
+				if (!$status_kurzbz || !$datum || !$studiensemester_kurzbz || !isset($ausbildungssemester) || $ausbildungssemester === '')
 					return true; // Error will be handled by the required statements above

 				$result = $this->prestudentstatuschecklib->checkStatusHistoryAbbrechersemester(
@@ -1019,7 +1018,7 @@ class Status extends FHCAPI_Controller
 			) {
 				if ($isBerechtigtNoStudstatusCheck)
 					return true; // Skip if access right says so
-				if (!$status_kurzbz || !$datum || !$studiensemester_kurzbz || !$ausbildungssemester)
+				if (!$status_kurzbz || !$datum || !$studiensemester_kurzbz || !isset($ausbildungssemester) || $ausbildungssemester === '')
 					return true; // Error will be handled by the required statements above

 				$result = $this->prestudentstatuschecklib->checkStatusHistoryDiplomant(
@@ -1078,6 +1077,24 @@ class Status extends FHCAPI_Controller
 		$this->terminateWithSuccess(true);
 	}

+	protected function checkForCriticalChangesBis($oldstatus)
+	{
+		$changedFields = array();
+		$allowedFields = array('anmerkung', 'statusgrund_id');
+		$oldstatus_array = get_object_vars($oldstatus);
+		foreach($oldstatus_array as $key => $oldValue)
+		{
+			$newValue = $this->input->post($key);
+			if( $newValue !== $oldValue )
+			{
+				$changedFields[] = $key;
+			}
+		}
+		$criticalFieldsChanged = array_diff($changedFields, $allowedFields);
+		$hasCriticalChangesBis = count($criticalFieldsChanged) > 0 ? true : false;
+		return $hasCriticalChangesBis;
+	}
+
 	/**
 	 * Updates a status entry
 	 *
@@ -1102,6 +1119,7 @@ class Status extends FHCAPI_Controller

 		$oldstatus = current($oldstatus);

+		$hasCriticalChangesBis = $this->checkForCriticalChangesBis($oldstatus);

 		$isBerechtigtNoStudstatusCheck =  $this->permissionlib->isBerechtigt('student/keine_studstatuspruefung');
 		$isBerechtigtBasisPrestudentstatus = $this->permissionlib->isBerechtigt('basis/prestudentstatus');
@@ -1112,7 +1130,6 @@ class Status extends FHCAPI_Controller
 		$ausbildungssemester = $this->input->post('ausbildungssemester') ?: $oldstatus->ausbildungssemester;
 		$datum = $this->input->post('datum') ?: $oldstatus->datum;

-
 		//Form Validation
 		$this->load->library('form_validation');

@@ -1135,9 +1152,15 @@ class Status extends FHCAPI_Controller
 			$this->p->t('global', 'datum'),
 			[
 				'is_valid_date',
-				['meldestichtag_not_exceeded', function ($value) use ($isBerechtigtNoStudstatusCheck) {
+				['meldestichtag_not_exceeded', function ($value) use ($isBerechtigtNoStudstatusCheck, $hasCriticalChangesBis){
 					if ($isBerechtigtNoStudstatusCheck)
-						return true; // Skip if access right says so
+					{
+						return true; // Skip if access right says so*/
+					}
+					if (!$hasCriticalChangesBis) {
+						return true; // Skip if no critical changes were made
+					}
+
 					if (!$value)
 						return true; // Error will be handled by the required statement above

@@ -1341,6 +1364,7 @@ class Status extends FHCAPI_Controller
 			'updateamum' => date('c'),
 			'updatevon' => $authUID
 		];
+		$nullableFields = ['statusgrund_id', 'anmerkung', 'rt_stufe'];
 		foreach ([
 					'orgform_kurzbz',
 					'anmerkung',
@@ -1349,8 +1373,17 @@ class Status extends FHCAPI_Controller
 					'rt_stufe',
 					'statusgrund_id'
 				] as $key)
-			if ($this->input->post($key))
+		{
+			if (in_array($key, $nullableFields))
+			{
+				$updateData[$key] = ($this->input->post($key) === '') ? null : $this->input->post($key);
+			}
+			else if ($this->input->post($key))
+			{
 				$updateData[$key] = $this->input->post($key);
+			}
+		}
+

 		if ($this->input->post('bestaetigtam')) {
 			$updateData['bestaetigtam'] = $this->input->post('bestaetigtam');
@@ -36,7 +36,8 @@ class Student extends FHCAPI_Controller
 		parent::__construct([
 			'get' => ['admin:r', 'assistenz:r'],
 			'save' => ['admin:rw', 'assistenz:rw'],
-			'check' => ['admin:rw', 'assistenz:rw'],
+			'saveStudent' => ['admin:rw', 'assistenz:rw'],
+			'getPerson' => ['admin:rw', 'assistenz:rw'],
 			'add' => ['admin:rw', 'assistenz:rw'] // TODO(chris): extra permissions
 		]);

@@ -55,7 +56,7 @@ class Student extends FHCAPI_Controller

 		// Load language phrases
 		$this->loadPhrases([
-			'ui', 'lehre'
+			'ui', 'lehre', 'person'
 		]);
 	}

@@ -111,26 +112,33 @@ class Student extends FHCAPI_Controller
 		if (defined('ACTIVE_ADDONS') && strpos(ACTIVE_ADDONS, 'bewerbung') !== false) {
 			$this->PrestudentModel->addSelect(
 				"(
-					SELECT kontakt 
-					FROM public.tbl_kontakt 
-					WHERE kontakttyp='email' 
-					AND person_id=p.person_id 
-					AND zustellung 
-					ORDER BY kontakt_id 
+					SELECT kontakt
+					FROM public.tbl_kontakt
+					WHERE kontakttyp='email'
+					AND person_id=p.person_id
+					AND zustellung
+					ORDER BY kontakt_id DESC
 					LIMIT 1
 				) AS email_privat",
 				false
 			);
+			$this->PrestudentModel->addSelect(
+				"(
+					SELECT kontakt
+					FROM public.tbl_kontakt
+					WHERE kontakttyp='email_unverifiziert'
+					AND person_id=p.person_id
+					AND zustellung
+					ORDER BY kontakt_id DESC
+					LIMIT 1
+				) AS email_privat_unverified",
+				false
+			);
 		}
 		$this->PrestudentModel->addSelect(
-			"(
-				SELECT status_kurzbz
-				FROM public.tbl_prestudentstatus pss
-				WHERE pss.prestudent_id = public.tbl_prestudent.prestudent_id
-				  AND pss.studiensemester_kurzbz = " . $this->PrestudentModel->escape($studiensemester_kurzbz) . "
-				ORDER BY GREATEST(pss.datum, '0001-01-01') DESC
-				LIMIT 1
-				) AS statusofsemester"
+			"public.get_rolle_prestudent(public.tbl_prestudent.prestudent_id, "
+				. $this->PrestudentModel->escape($studiensemester_kurzbz)
+				. ")  AS statusofsemester"
 		);

 		$this->PrestudentModel->addJoin('public.tbl_student s', 'prestudent_id', 'LEFT');
@@ -146,9 +154,9 @@ class Student extends FHCAPI_Controller
 										'LEFT');*/

 		$result = $this->PrestudentModel->loadWhere(['tbl_prestudent.prestudent_id' => $prestudent_id]);
-		
+
 		$student = $this->getDataOrTerminateWithError($result);
-		
+
 		if (!$student)
 			return show_404();

@@ -208,7 +216,7 @@ class Student extends FHCAPI_Controller
 		]);

 		$this->load->library('UDFLib');
-		
+
 		$result = $this->udflib->getCiValidations($this->PersonModel, $this->input->post());

 		$udf_field_validations = $this->getDataOrTerminateWithError($result);
@@ -219,7 +227,7 @@ class Student extends FHCAPI_Controller
 			$this->terminateWithValidationErrors($this->form_validation->error_array());

 		$result = $this->StudentModel->loadWhere(['prestudent_id' => $prestudent_id]);
-		
+
 		$student = $this->getDataOrTerminateWithError($result);

 		$uid = $student ? current($student)->student_uid : null;
@@ -232,7 +240,6 @@ class Student extends FHCAPI_Controller

 		$person_id = $person ? current($person)->person_id : null;

-		
 		$array_allowed_props_lehrverband = ['verband', 'semester', 'gruppe'];
 		$update_lehrverband = array();
 		foreach ($array_allowed_props_lehrverband as $prop) {
@@ -276,13 +283,23 @@ class Student extends FHCAPI_Controller
 		$update_person = array();
 		foreach ($array_allowed_props_person as $prop) {
 			$val = $this->input->post($prop);
-			if ($val !== null) {
+			if ($val === null)
+			{
+				continue;
+			}
+			if($prop == 'foto')
+			{
+				$fotoval = ($val == '') ? null : str_replace('data:image/jpeg;base64,', '', $val);
+				$update_person[$prop] = $fotoval;
+			}
+			else
+			{
 				$update_person[$prop] = $val;
 			}
 		}

 		$array_allowed_props_student = ['matrikelnr'];
-		if($this->isLaufendesSemester($studiensemester_kurzbz)) 
+		if($this->isLaufendesSemester($studiensemester_kurzbz))
 		{
 			$array_allowed_props_student = ['matrikelnr', 'verband', 'semester', 'gruppe'];
 		}
@@ -299,6 +316,10 @@ class Student extends FHCAPI_Controller
 		foreach ($array_allowed_props_benutzer as $prop) {
 			$val = $this->input->post($prop);
 			if ($val !== null) {
+				if($prop === 'alias' && $val === '')
+				{
+					$val = null;
+				}
 				$update_benutzer[$prop] = $val;
 			}
 		}
@@ -414,7 +435,32 @@ class Student extends FHCAPI_Controller
 		), ''));
 	}

-	public function check()
+	/**
+	 * Saves data to a prestudent using their student_uid
+	 *
+	 * @param string			$student_uid
+	 * @param string			$studiensemester_kurzbz
+	 * @return void
+	 */
+	public function saveStudent($student_uid, $studiensemester_kurzbz)
+	{
+		$this->load->model('crm/Student_model', 'StudentModel');
+
+		$result = $this->StudentModel->load([$student_uid]);
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		if (!$data)
+			show_404(); // No Student with that ID
+
+		$student = current($data);
+
+		$this->checkPermissionsForPrestudent($student->prestudent_id, ['admin:rw', 'assistenz:rw']);
+
+		return $this->save($student->prestudent_id, $studiensemester_kurzbz);
+	}
+
+	public function getPerson()
 	{
 		$this->load->library('form_validation');

@@ -432,21 +478,55 @@ class Student extends FHCAPI_Controller

 		$this->load->model('person/Person_model', 'PersonModel');

+		$this->PersonModel->addSelect(
+			'person_id, vorname, nachname, vornamen, wahlname, gebdatum, staatsbuergerschaft, geburtsnation, sprache, anrede,
+			titelpost, titelpre, gebort, gebzeit, homepage, geschlecht, matr_nr,
+			aktiv, unruly, tbl_geschlecht.bezeichnung_mehrsprachig AS geschlecht_bezeichnung'
+		);
+		$this->PersonModel->addJoin('public.tbl_geschlecht', 'geschlecht');
+
 		if ($gebdatum)
 			$this->PersonModel->db->where('gebdatum', (new DateTime($gebdatum))->format('Y-m-d'));
 		if ($vorname && $nachname) {
 			$this->PersonModel->db->or_group_start();
-			$this->PersonModel->db->where('LOWER(nachname)', 'LOWER(' . $this->PersonModel->db->escape($nachname) . ')', false);
-			$this->PersonModel->db->where('LOWER(vorname)', 'LOWER(' . $this->PersonModel->db->escape($vorname) . ')', false);
+			$this->PersonModel->db->where('LOWER(nachname)', 'LOWER(' . $this->PersonModel->db->escape(trim($nachname)) . ')', false);
+			$this->PersonModel->db->where('LOWER(vorname)', 'LOWER(' . $this->PersonModel->db->escape(trim($vorname)) . ')', false);
 			$this->PersonModel->db->group_end();
 		} elseif ($nachname) {
-			$this->PersonModel->db->or_where('LOWER(nachname)', 'LOWER(' . $this->PersonModel->escape($nachname) . ')', false);
+			$this->PersonModel->db->or_where('LOWER(nachname)', 'LOWER(' . $this->PersonModel->escape(trim($nachname)) . ')', false);
 		}

 		$result = $this->PersonModel->load();

 		$data = $this->getDataOrTerminateWithError($result);

+		$this->load->model('person/Adresse_model', 'AdresseModel');
+		$this->load->model('crm/Prestudentstatus_model', 'PrestudentstatusModel');
+
+		foreach ($data as $person)
+		{
+			// get adresses
+			$langIdx = $this->_getLanguageIndex() - 1;
+			$person->geschlecht_bezeichnung = isset($person->geschlecht_bezeichnung[$langIdx]) ? $person->geschlecht_bezeichnung[$langIdx] : '';
+
+			// get Adresse
+			$this->AdresseModel->addOrder('heimatadresse', 'DESC');
+			$this->AdresseModel->addOrder('zustelladresse', 'DESC');
+			$this->AdresseModel->addOrder('adresse_id', 'DESC');
+			$result = $this->AdresseModel->loadWhere(['person_id' => $person->person_id]);
+
+			$adressen = $this->getDataOrTerminateWithError($result);
+
+			$person->adressen = $adressen;
+
+			// get status
+			$result = $this->PrestudentstatusModel->getLastStatusPerson($person->person_id);
+
+			$status = $this->getDataOrTerminateWithError($result);
+
+			$person->status = $status;
+		}
+
 		$this->terminateWithSuccess($data);
 	}

@@ -455,69 +535,57 @@ class Student extends FHCAPI_Controller
 		if (!$this->input->post('person_id')) {
 			if (!isset($_POST['address']) || !is_array($_POST['address']))
 				$_POST['address'] = [];
-			$_POST['address']['func'] = 1;
 		}
 		if ($this->input->post('incoming')) {
 			$_POST['ausbildungssemester'] = 0;
 		}

-		$this->load->library('form_validation');
+		$this->_validate();

-		$this->form_validation->set_rules('nachname', 'Nachname', 'callback_requiredIfNotPersonId', [
-			'requiredIfNotPersonId' => $this->p->t('ui', 'error_required')
-		]);
-		$this->form_validation->set_rules('geschlecht', 'Geschlecht', 'callback_requiredIfNotPersonId', [
-			'requiredIfNotPersonId' => $this->p->t('ui', 'error_required')
-		]);
-		$this->form_validation->set_rules('gebdatum', 'Geburtsdatum', 'callback_isValidDate', [
-			'isValidDate' => $this->p->t('ui', 'error_invalid_date')
-		]);
-		$this->form_validation->set_rules('address[func]', 'Address', 'required|integer|less_than[2]|greater_than[-2]');
-		$this->form_validation->set_rules('address[plz]', 'PLZ', 'callback_requiredIfAddressFunc', [
-			'requiredIfAddressFunc' => $this->p->t('ui', 'error_required')
-		]);
-		$this->form_validation->set_rules('address[gemeinde]', 'Gemeinde', 'callback_requiredIfAddressFunc', [
-			'requiredIfAddressFunc' => $this->p->t('ui', 'error_required')
-		]);
-		$this->form_validation->set_rules('address[ort]', 'Ort', 'callback_requiredIfAddressFunc', [
-			'requiredIfAddressFunc' => $this->p->t('ui', 'error_required')
-		]);
-		$this->form_validation->set_rules('address[address]', 'Adresse', 'callback_requiredIfAddressFunc', [
-			'requiredIfAddressFunc' => $this->p->t('ui', 'error_required')
-		]);
-		$this->form_validation->set_rules('email', 'E-Mail', 'valid_email');
-		$this->form_validation->set_rules('studiengang_kz', 'Studiengang', 'required');
-		$this->form_validation->set_rules('studiensemester_kurzbz', 'Studiensemester', 'required');
-		$this->form_validation->set_rules('ausbildungssemester', 'Ausbildungssemester', 'required|integer|less_than[9]|greater_than[-1]');
-		// TODO(chris): validate studienplan with studiengang, semester and orgform?
-		// TODO(chris): validate person_id, studiengang_kz, studiensemester_kurzbz, orgform_kurzbz, nation, gemeinde, ort, geschlecht?
-
-		if (!$this->form_validation->run())
-			$this->terminateWithValidationErrors($this->form_validation->error_array());
-
-		// TODO(chris): This should be in a library
+		$this->load->model('crm/Student_model', 'StudentModel');
 		$this->load->model('crm/Prestudent_model', 'PrestudentModel');
 		$this->load->model('crm/Prestudentstatus_model', 'PrestudentstatusModel');
+		$this->load->model('organisation/Lehrverband_model', 'LehrverbandModel');
+		$this->load->model('education/Studentlehrverband_model', 'StudentlehrverbandModel');

-		$this->db->trans_start();
+		$this->load->library('PrestudentLib');

-		$result = $this->addInteressent();
+		$errors = [];
+		$person_id = null;

-		$this->db->trans_complete();
+		$this->db->trans_begin();

-		if ($this->db->trans_status() === FALSE)
-			$this->terminateWithError('TODO(chris): TEXT', self::ERROR_TYPE_GENERAL);
+		$result = $this->_addPerson();
+		if (isError($result)) $errors[] = getError($result);

-		$this->terminateWithSuccess($result);
+		if (hasData($result))
+		{
+			$person_id = getData($result);
+			$result = $this->_addAdresse($person_id);
+			if (isError($result)) $errors[] = getError($result);
+			$result = $this->_addKontakt($person_id);
+			if (isError($result)) $errors[] = getError($result);
+			if (!$this->input->post('personOnly')) $result = $this->_addFirstPrestudentstatus($person_id);
+			if (isError($result)) $errors[] = getError($result);
+		}
+
+		if ($this->db->trans_status() === FALSE || !isEmptyArray($errors))
+		{
+			$this->db->trans_rollback();
+			$this->terminateWithError(isEmptyArray($errors) ? $this->p->t('stv', 'error_add_student') : $errors);
+		}
+		$this->db->trans_commit();
+
+		$this->terminateWithSuccess($person_id);
 	}

-	protected function addInteressent()
+	private function _addPerson()
 	{
 		// Person anlegen wenn nötig
 		$person_id = $this->input->post('person_id');
 		if (!$person_id) {
 			$this->load->model('person/Person_model', 'PersonModel');
-			
+
 			$data = [
 				'nachname' => $this->input->post('nachname'),
 				'insertamum' => date('c'),
@@ -540,19 +608,25 @@ class Student extends FHCAPI_Controller
 			if ($this->input->post('geschlecht'))
 				$data['geschlecht'] = $this->input->post('geschlecht');
 			if ($this->input->post('gebdatum'))
-				$data['gebdatum'] = (new DateTime($this->input->post('datum_obj')))->format('Y-m-d');
+				$data['gebdatum'] = (new DateTime($this->input->post('gebdatum')))->format('Y-m-d');
 			if ($this->input->post('geburtsnation'))
 				$data['geburtsnation'] = $this->input->post('geburtsnation');
 			if ($this->input->post('staatsbuergerschaft'))
 				$data['staatsbuergerschaft'] = $this->input->post('staatsbuergerschaft');

-			$result = $this->PersonModel->insert($data);
-			$person_id = $this->getDataOrTerminateWithError($result);
+			return $this->PersonModel->insert($data);
 		}

-		// Addresse anlegen
-		$anlegen = $this->input->post('address[func]');
-		if ($anlegen) {
+		return success($person_id);
+	}
+
+	private function _addAdresse($person_id)
+	{
+		// Addresse anlegen?
+		$anlegen = $this->input->post('address[checked]');
+		if ($anlegen === true)
+		{
+			// Adresse laden
 			$this->load->model('person/Adresse_model', 'AdresseModel');

 			$data = [
@@ -564,50 +638,45 @@ class Student extends FHCAPI_Controller
 				'typ' => 'h',
 				'zustelladresse' => true,
 			];
-			if ($anlegen < 0) { // Überschreiben
-				$this->AdresseModel->addOrder('zustelladresse', 'DESC');
-				$this->AdresseModel->addOrder('sort');
+
+				$this->AdresseModel->addSelect('adresse_id');
 				$result = $this->AdresseModel->loadWhere([
 					'person_id' => $person_id
 				]);
-				$address = $this->getDataOrTerminateWithError($result);
-				if ($address) {
-					$address = current($address);

-					$data['updateamum'] = date('c');
-					$data['updatevon'] = getAuthUID();
+				if (isError($result)) return $result;
+
+				// wenn neue Adresse, heimatadresse setzen
+				if (!hasData($result)) $data['heimatadresse'] = true;

-					$result = $this->AdresseModel->update($address->adresse_id, $data);
-					$this->getDataOrTerminateWithError($result);
-				} else {
-					//Wenn keine Adrese vorhanden ist dann eine neue Anlegen
-					$anlegen = 1;
-					$data['heimatadresse'] = true;
-				}
-			}
-			if ($anlegen > 0) {
 				$data['person_id'] = $person_id;
 				$data['insertamum'] = date('c');
 				$data['insertvon'] = getAuthUID();
-				if (!isset($data['heimatadresse']))
-					$data['heimatadresse'] = !$this->input->post('person_id');
-				
-				$result = $this->AdresseModel->insert($data);
-				$this->getDataOrTerminateWithError($result);
-			}
+
+				return $this->AdresseModel->insert($data);
 		}
-		
+
+		return success(null);
+	}
+
+	private function _addKontakt($person_id)
+	{
 		// Kontaktdaten
 		$kontaktdaten = [];
-		foreach (['email', 'telefon', 'mobil'] as $k) {
+
+		foreach (['email', 'telefon', 'mobil'] as $k)
+		{
 			$v = $this->input->post($k);
 			if ($v)
 				$kontaktdaten[$k] = $v;
 		}
-		if (count($kontaktdaten)) {
+
+		if (count($kontaktdaten))
+		{
 			$this->load->model('person/Kontakt_model', 'KontaktModel');

-			foreach ($kontaktdaten as $typ => $kontakt) {
+			foreach ($kontaktdaten as $typ => $kontakt)
+			{
 				$data = [
 					'person_id' => $person_id,
 					'kontakttyp' => $typ,
@@ -617,83 +686,70 @@ class Student extends FHCAPI_Controller
 					'insertvon' => getAuthUID()
 				];
 				$result = $this->KontaktModel->insert($data);
-				$this->getDataOrTerminateWithError($result);
+				if (isError($result)) return $result;
 			}
 		}
+		return success(null);
+	}

+	private function _addFirstPrestudentstatus($person_id)
+	{
 		// Prestudent anlegen
-		$data = [
-			'aufmerksamdurch_kurzbz' => 'k.A.',
-			'person_id' => $person_id,
-			'studiengang_kz' => $this->input->post('studiengang_kz'),
-			'ausbildungcode' => $this->input->post('letzteausbildung'),
-			'anmerkung' => $this->input->post('anmerkungen'),
-			'reihungstestangetreten' => false,
-			'bismelden' => true
-		];
+
+		// Anmerkung with Ausbildungsart
+		$studiengang_kz = $this->input->post('studiengang_kz');
+		$studiensemester_kurzbz = $this->input->post('studiensemester_kurzbz');
 		$ausbildungsart = $this->input->post('ausbildungsart');
+		$anmerkung = $this->input->post('anmerkungen');
+		$foerderrelevant = null;
 		if ($ausbildungsart)
-			$data['anmerkung'] .= ' Ausbildungsart:' . $ausbildungsart;
+			$anmerkung .= ' Ausbildungsart:' . $ausbildungsart;
+
 		// Incomings und ausserordentliche sind bei Meldung nicht förderrelevant
 		$incoming = $this->input->post('incoming');
-		if ($incoming || substr($data['studiengang_kz'], 0, 1) == '9')
-			$data['foerderrelevant'] = false;
-		// Wenn die Person schon im System erfasst ist, dann die ZGV des Datensatzes uebernehmen
-		$this->PrestudentModel->addOrder('zgvmas_code');
-		$this->PrestudentModel->addOrder('zgv_code', 'DESC');
-		$this->PrestudentModel->addLimit(1);
-		$result = $this->PrestudentModel->loadWhere([
-			'person_id' => $person_id
-		]);
-		$prestudent = $this->getDataOrTerminateWithError($result);
-		if ($prestudent) {
-			$prestudent = current($prestudent);
-			if ($prestudent->zgv_code) {
-				$data['zgv_code'] = $prestudent->zgv_code;
-				$data['zgvort'] = $prestudent->zgvort;
-				$data['zgvdatum'] = $prestudent->zgvdatum;
+		if ($incoming || substr($studiengang_kz, 0, 1) == '9')
+			$foerderrelevant = false;

-				$data['zgvmas_code'] = $prestudent->zgvmas_code;
-				$data['zgvmaort'] = $prestudent->zgvmaort;
-				$data['zgvmadatum'] = $prestudent->zgvmadatum;
-			}
-		}
 		// Prestudent speichern
-		$result = $this->PrestudentModel->insert($data);
-		$prestudent_id = $this->getDataOrTerminateWithError($result);
+		$result = $this->prestudentlib->setPrestudent(
+			$person_id,
+			$studiengang_kz,
+			$this->input->post('letzteausbildung'),
+			$anmerkung,
+			$foerderrelevant
+		);
+		if (isError($result)) return $result;
+		if (!hasData($result)) return error('Error when adding prestudent');

-		// Prestudent Rolle Anlegen
-		$data = [
-			'prestudent_id' => $prestudent_id,
-			'status_kurzbz' => $incoming ? 'Incoming' : 'Interessent',
-			'studiensemester_kurzbz' => $this->input->post('studiensemester_kurzbz'),
-			'ausbildungssemester' => $this->input->post('ausbildungssemester') ?: 0,
-			'orgform_kurzbz' => $this->input->post('orgform_kurzbz') ?: null,
-			'studienplan_id' => $this->input->post('studienplan_id') ?: null,
-			'datum' => date('Y-m-d'),
-			'insertamum' => date('c'),
-			'insertvon' => getAuthUID()
-		];
-		$result = $this->PrestudentstatusModel->insert($data);
-		$this->getDataOrTerminateWithError($result);
+		$prestudent_id = getData($result);

-		if ($incoming) {
-			// TODO(chris): IMPLEMENT!
-			//Matrikelnummer und UID generieren
-			//Benutzerdatensatz anlegen
-			//Studentendatensatz anlegen
-			//StudentLehrverband anlegen
+		// wenn Incoming, Incoming Daten hinzufügen
+		if ($incoming)
+		{
+			$statusResult = $this->prestudentlib->setFirstIncoming(
+				$prestudent_id,
+				$studiengang_kz,
+				$studiensemester_kurzbz,
+				$this->input->post('orgform_kurzbz'),
+				$this->input->post('studienplan_id')
+			);
 		}
+		else
+		{
+			// Prestudent Rolle Anlegen
+			$statusResult = $this->prestudentlib->setFirstStatus(
+				$prestudent_id,
+				$this->PrestudentstatusModel::STATUS_INTERESSENT,
+				$studiensemester_kurzbz,
+				$this->input->post('ausbildungssemester'),
+				$this->input->post('orgform_kurzbz'),
+				$this->input->post('studienplan_id')
+			);
+		}
+		if (!hasData($statusResult)) return error('error when adding status');
+		if (isError($statusResult)) return $statusResult;

-		// TODO(chris): DEBUG
-		/*$result = $this->PrestudentModel->loadWhere([
-			'pestudent_id' => 1
-		]);
-		if (isError($result)) {
-			return $result;
-		}*/
-
-		return success(true);
+		return success($prestudent_id);
 	}

 	public function requiredIfNotPersonId($value)
@@ -705,13 +761,84 @@ class Student extends FHCAPI_Controller
 	
 	public function requiredIfAddressFunc($value)
 	{
-		if (!$_POST['address']['func'])
+		if (!isset($_POST['address']['checked']) || !$_POST['address']['checked'])
 			return true;
 		return !!$value;
 	}

-	public function isValidDate($value)
+	public function requiredIfStudentFunc($value)
 	{
-		return isValidDate($value);
+		if (isset($_POST['personOnly']) && $_POST['personOnly'])
+			return true;
+		return !!$value;
+	}
+
+	public function requiredIfStudentAndNotIncomingFunc($value)
+	{
+		if ((isset($_POST['incoming']) && $_POST['incoming']) || $this->requiredIfStudentFunc($value))
+			return true;
+		return !!$value;
+	}
+
+	/**
+	 * Validates input data. Terminates with validation errors, if invalid.
+	 */
+	private function _validate()
+	{
+		$this->load->library('form_validation');
+
+		$this->form_validation->set_rules('nachname', 'Nachname', 'callback_requiredIfNotPersonId', [
+			'requiredIfNotPersonId' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('person', 'nachname')])
+		]);
+		$this->form_validation->set_rules('geschlecht', 'Geschlecht', 'callback_requiredIfNotPersonId', [
+			'requiredIfNotPersonId' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('person', 'geschlecht')])
+		]);
+		$this->form_validation->set_rules('gebdatum', 'Geburtsdatum', ['isValidDate', function($value) { return isValidDate($value); }], [
+			'isValidDate' => $this->p->t('ui', 'error_invalid_date')
+		]);
+		//$this->form_validation->set_rules('address[checked]', 'Address', 'required');
+		$this->form_validation->set_rules('address[plz]', 'PLZ', 'callback_requiredIfAddressFunc', [
+			'requiredIfAddressFunc' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('person', 'plz')])
+		]);
+		$this->form_validation->set_rules('address[gemeinde]', 'Gemeinde', 'callback_requiredIfAddressFunc', [
+			'requiredIfAddressFunc' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('person', 'gemeinde')])
+		]);
+		$this->form_validation->set_rules('address[ort]', 'Ort', 'callback_requiredIfAddressFunc', [
+			'requiredIfAddressFunc' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('person', 'ort')])
+		]);
+		$this->form_validation->set_rules('address[address]', 'Adresse', 'callback_requiredIfAddressFunc', [
+			'requiredIfAddressFunc' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('person', 'adresse')])
+		]);
+		$this->form_validation->set_rules('email', 'E-Mail', 'valid_email');
+		$this->form_validation->set_rules('studiengang_kz', 'Studiengang', 'callback_requiredIfStudentFunc', [
+			'requiredIfStudentFunc' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('lehre', 'studiengang')])
+		]);
+		$this->form_validation->set_rules('studiensemester_kurzbz', 'Studiensemester', 'callback_requiredIfStudentFunc', [
+			'requiredIfStudentFunc' => $this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('lehre', 'studiensemester')])
+		]);
+		$this->form_validation->set_rules(
+			'ausbildungssemester',
+			'Ausbildungssemester',
+			'callback_requiredIfStudentAndNotIncomingFunc|integer|less_than[9]|greater_than[-1]',
+			[
+				'requiredIfStudentAndNotIncomingFunc' =>
+					$this->p->t('ui', 'error_fieldRequired', ['field' => $this->p->t('lehre', 'ausbildungssemester')]),
+			]
+		);
+		// TODO(chris): validate studienplan with studiengang, semester and orgform?
+		// TODO(chris): validate person_id, studiengang_kz, studiensemester_kurzbz, orgform_kurzbz, nation, gemeinde, ort, geschlecht?
+
+		if (!$this->form_validation->run())
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+	}
+
+	private function _getLanguageIndex()
+	{
+		$this->load->model('system/Sprache_model', 'SpracheModel');
+		$this->SpracheModel->addSelect('index');
+		$result = $this->SpracheModel->loadWhere(array('sprache' => getUserLanguage()));
+		$this->addMeta('lang', getUserLanguage());
+
+		return hasData($result) ? getData($result)[0]->index : 1;
 	}
 }
@@ -44,14 +44,12 @@ class Students extends FHCAPI_Controller
 		}

 		// Load Libraries
-		$this->load->library('VariableLib', ['uid' => getAuthUID()]);
 		$this->load->library('PhrasesLib');
 		$this->loadPhrases(
 			array(
 				'lehre'
 			)
 		);
-
 	}

 	/**
@@ -75,7 +73,7 @@ class Students extends FHCAPI_Controller
 	 * /(studiengang_kz)/(orgform)/prestudent/(studiensemester_kurzbz)/(filter)					=> getPrestudentsOrgform
 	 * /(studiengang_kz)/(orgform)/prestudent/(studiensemester_kurzbz)/(filter)/(otherfilter)	=> getPrestudentsOrgform
 	 *
-	 * /(studiensemester_kurzbz)/(studiengang_kz)/(semester)/grp/(gruppe)	=> getStudentsSpezialguppe
+	 * /(studiensemester_kurzbz)/(studiengang_kz)/(semester)/grp/(gruppe)	=> getStudentsSpezialgruppe
 	 *
 	 * /(studiensemester_kurzbz)/(studiengang_kz)								=> getStudents
 	 * /(studiensemester_kurzbz)/(studiengang_kz)/(semester)					=> getStudents
@@ -101,39 +99,183 @@ class Students extends FHCAPI_Controller
 	}

 	/**
+	 * @param string		$studiensemester_kurzbz
+	 *
 	 * @return void
 	 */
-	public function getIncoming()
+	public function getIncoming($studiensemester_kurzbz)
 	{
 		$this->addMeta('ci_method', __FUNCTION__);
-		// TODO(chris): IMPLEMENT!
-		$this->terminateWithSuccess([]);
+		$this->addMeta('ci_params', [
+			'studiensemester_kurzbz' => $studiensemester_kurzbz
+		]);
+		
+
+		$this->load->model('crm/Prestudent_model', 'PrestudentModel');
+
+
+		$this->PrestudentModel->addJoin(
+			"(
+				SELECT prestudent_id 
+				FROM public.tbl_prestudentstatus
+				WHERE status_kurzbz = 'Incoming'
+				AND studiensemester_kurzbz = " . $this->PrestudentModel->escape($studiensemester_kurzbz) . "
+			) test",
+			"prestudent_id"
+		);
+
+
+		$this->prepareQuery($studiensemester_kurzbz);
+
+		$this->PrestudentModel->addSelect("COALESCE(
+			v.semester::text, 
+			CASE 
+				WHEN pls.status_kurzbz IN ('Aufgenommener', 'Bewerber', 'Wartender', 'interessent') 
+				THEN pls.ausbildungssemester::text 
+				ELSE ''::text 
+			END
+		) AS semester", false);
+		$this->PrestudentModel->addSelect("COALESCE(v.verband::text, ''::text)");
+		$this->PrestudentModel->addSelect("COALESCE(v.gruppe::text, ''::text)");
+		
+		$this->addSelectPrioRel();
+
+		$this->addFilter($studiensemester_kurzbz);
+
+
+		$result = $this->PrestudentModel->load();
+		
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess($data);
 	}

 	/**
+	 * @param string		$studiensemester_kurzbz
+	 *
 	 * @return void
 	 */
-	public function getOutgoing()
+	public function getOutgoing($studiensemester_kurzbz)
 	{
 		$this->addMeta('ci_method', __FUNCTION__);
-		// TODO(chris): IMPLEMENT!
-		$this->terminateWithSuccess([]);
+		$this->addMeta('ci_params', [
+			'studiensemester_kurzbz' => $studiensemester_kurzbz
+		]);
+		
+
+		$this->load->model('crm/Prestudent_model', 'PrestudentModel');
+
+
+		$this->PrestudentModel->addJoin(
+			"(
+				SELECT prestudent_id 
+				FROM bis.tbl_bisio bis 
+				JOIN public.tbl_student USING (student_uid)
+				JOIN public.tbl_studiensemester stdsem ON (
+					(bis.von >= stdsem.start AND bis.von <= stdsem.ende) 
+					OR 
+					(bis.bis >= stdsem.start AND bis.bis <= stdsem.ende) 
+					OR 
+					(bis.von <= stdsem.start AND bis.bis >= stdsem.ende)
+				)
+				WHERE NOT EXISTS (
+					SELECT 1 
+					FROM public.tbl_prestudentstatus 
+					WHERE status_kurzbz = 'Incoming'
+					AND prestudent_id = tbl_student.prestudent_id
+				) AND stdsem.studiensemester_kurzbz = " . $this->PrestudentModel->escape($studiensemester_kurzbz) . "
+				GROUP BY prestudent_id
+			) test",
+			"prestudent_id"
+		);
+
+
+		$this->prepareQuery($studiensemester_kurzbz);
+
+
+		$this->PrestudentModel->addSelect("COALESCE(
+			v.semester::text, 
+			CASE 
+				WHEN pls.status_kurzbz IN ('Aufgenommener', 'Bewerber', 'Wartender', 'interessent') 
+				THEN pls.ausbildungssemester::text 
+				ELSE ''::text 
+			END
+		) AS semester", false);
+		$this->PrestudentModel->addSelect("COALESCE(v.verband::text, ''::text)");
+		$this->PrestudentModel->addSelect("COALESCE(v.gruppe::text, ''::text)");
+		
+		$this->addSelectPrioRel();
+
+		$this->addFilter($studiensemester_kurzbz);
+
+
+		$result = $this->PrestudentModel->load();
+		
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess($data);
 	}

 	/**
+	 * @param string		$studiensemester_kurzbz
+	 *
 	 * @return void
 	 */
-	public function getGemeinsamestudien()
+	public function getGemeinsamestudien($studiensemester_kurzbz)
 	{
 		$this->addMeta('ci_method', __FUNCTION__);
-		// TODO(chris): IMPLEMENT!
-		$this->terminateWithSuccess([]);
+		$this->addMeta('ci_params', [
+			'studiensemester_kurzbz' => $studiensemester_kurzbz
+		]);
+		
+
+		$this->load->model('crm/Prestudent_model', 'PrestudentModel');
+
+
+		$this->PrestudentModel->addJoin(
+			"(
+				SELECT prestudent_id
+				FROM bis.tbl_mobilitaet 
+				WHERE studiensemester_kurzbz = " . $this->PrestudentModel->escape($studiensemester_kurzbz) . "
+			) bis",
+			"prestudent_id"
+		);
+
+
+		$this->prepareQuery($studiensemester_kurzbz);
+
+
+		$this->PrestudentModel->addSelect("COALESCE(
+			v.semester::text, 
+			CASE 
+				WHEN pls.status_kurzbz IN ('Aufgenommener', 'Bewerber', 'Wartender', 'interessent') 
+				THEN pls.ausbildungssemester::text 
+				ELSE ''::text 
+			END
+		) AS semester", false);
+		$this->PrestudentModel->addSelect("COALESCE(v.verband::text, ''::text)");
+		$this->PrestudentModel->addSelect("COALESCE(v.gruppe::text, ''::text)");
+		
+		$this->addSelectPrioRel();
+
+		$this->addFilter($studiensemester_kurzbz);
+
+
+		$result = $this->PrestudentModel->load();
+		
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess($data);
 	}

-	public function getPrestudents($studiengang_kz,
-		$studiensemester_kurzbz = null, $filter = null
-	)
-	{
+	public function getPrestudents(
+		$studiengang_kz,
+		$studiensemester_kurzbz = null,
+		$filter = null
+	) {
 		$this->addMeta('ci_method', __FUNCTION__);
 		$this->addMeta('ci_params', array(
 			'studiengang_kz' => $studiengang_kz,
@@ -144,10 +286,12 @@ class Students extends FHCAPI_Controller
 		$this->fetchPrestudents($studiengang_kz, $studiensemester_kurzbz, $filter);
 	}

-	public function getPrestudentsOrgform($studiengang_kz, $orgform_kurzbz,
-		$studiensemester_kurzbz = null, $filter = null
-	)
-	{
+	public function getPrestudentsOrgform(
+		$studiengang_kz,
+		$orgform_kurzbz,
+		$studiensemester_kurzbz = null,
+		$filter = null
+	) {
 		$this->addMeta('ci_method', __FUNCTION__);
 		$this->addMeta('ci_params', array(
 			'studiengang_kz' => $studiengang_kz,
@@ -227,7 +371,7 @@ class Students extends FHCAPI_Controller

 				$stg = $this->getDataOrTerminateWithError($result);
 				if (!$stg)
-					$this->terminateWithValidationErrors(['' => 'Studiengang does not exist']); // TODO(chris): phrase
+					$this->terminateWithSuccess([]);
 				$stg = current($stg);

 				$where['ps.status_kurzbz'] = 'Interessent';
@@ -296,7 +440,10 @@ class Students extends FHCAPI_Controller
 				break;
 			default:
 				if (!$studiensemester_kurzbz) {
-					// TODO(chris): this does not work with $orgform_kurzbz != null
+					/** NOTE(chris):
+					 * show all prestudents in this stg who don't have a status
+					 * $orgform_kurzbz does not change the results since orgform is stored in the status table
+					 */
 					$where['ps.status_kurzbz'] = null;
 				} else {
 					$this->PrestudentModel->db->where_in('ps.status_kurzbz', [
@@ -310,42 +457,18 @@ class Students extends FHCAPI_Controller
 				break;
 		}

-		/*
-			$this->PrestudentModel->addJoin('public.tbl_studiengang stg', 'studiengang_kz', 'LEFT');
-			$this->PrestudentModel->addJoin('public.tbl_person p', 'person_id');
-			$this->PrestudentModel->addJoin('public.tbl_prestudentstatus pls', '
-				pls.status_kurzbz=public.get_rolle_prestudent(tbl_prestudent.prestudent_id, NULL) 
-				AND pls.prestudent_id=tbl_prestudent.prestudent_id 
-				AND pls.studiensemester_kurzbz=public.get_stdsem_prestudent(tbl_prestudent.prestudent_id, NULL) 
-				AND pls.ausbildungssemester=public.get_absem_prestudent(tbl_prestudent.prestudent_id, NULL)', 'LEFT');
-			$this->PrestudentModel->addJoin('lehre.tbl_studienplan sp', 'studienplan_id', 'LEFT');
-			$this->PrestudentModel->addJoin('public.tbl_prestudentstatus ps', '
-				ps.status_kurzbz=public.get_rolle_prestudent(tbl_prestudent.prestudent_id, ' . $stdsemEsc . ') 
-				AND ps.prestudent_id=tbl_prestudent.prestudent_id 
-				AND ps.studiensemester_kurzbz=public.get_stdsem_prestudent(tbl_prestudent.prestudent_id, ' . $stdsemEsc . ') 
-				AND ps.ausbildungssemester=public.get_absem_prestudent(tbl_prestudent.prestudent_id, ' . $stdsemEsc . ')', 'LEFT');*/
 		$this->prepareQuery($studiensemester_kurzbz);
 		
 		$this->PrestudentModel->addSelect("
-			CASE WHEN ps.status_kurzbz IN ('Aufgenommener', 'Bewerber', 'Wartender', 'interessent') 
-			THEN ps.ausbildungssemester::text 
-			ELSE ''::text END AS semester", false);
+			CASE 
+				WHEN pls.status_kurzbz IN ('Aufgenommener', 'Bewerber', 'Wartender', 'interessent') 
+				THEN ps.ausbildungssemester::text 
+				ELSE ''::text 
+			END AS semester", false);
 		$this->PrestudentModel->addSelect("'' AS verband");
 		$this->PrestudentModel->addSelect("'' AS gruppe");
 		$this->addSelectPrioRel();

-		//add status per semester
-		$this->PrestudentModel->addSelect(
-			"(
-				SELECT status_kurzbz
-				FROM public.tbl_prestudentstatus pss
-				WHERE pss.prestudent_id = public.tbl_prestudent.prestudent_id
-				  AND pss.studiensemester_kurzbz = " . $this->PrestudentModel->escape($studiensemester_kurzbz) . "
-				ORDER BY GREATEST(pss.datum, '0001-01-01') DESC
-				LIMIT 1
-				) AS statusofsemester"
-		);
-
 		$this->addFilter($studiensemester_kurzbz);

 		$result = $this->PrestudentModel->loadWhere($where);
@@ -355,10 +478,13 @@ class Students extends FHCAPI_Controller
 		$this->terminateWithSuccess($data);
 	}

-	public function getStudents($studiensemester_kurzbz,
-		$studiengang_kz, $semester = null, $verband = null, $gruppe = null
-	)
-	{
+	public function getStudents(
+		$studiensemester_kurzbz,
+		$studiengang_kz,
+		$semester = null,
+		$verband = null,
+		$gruppe = null
+	) {
 		$this->addMeta('ci_method', __FUNCTION__);
 		$this->addMeta('ci_params', array(
 			'studiensemester_kurzbz' => $studiensemester_kurzbz,
@@ -371,10 +497,14 @@ class Students extends FHCAPI_Controller
 		$this->fetchStudents($studiensemester_kurzbz, $studiengang_kz, $semester, $verband, $gruppe, null, null);
 	}

-	public function getStudentsOrgform($studiensemester_kurzbz,
-		$studiengang_kz, $orgform_kurzbz, $semester = null, $verband = null, $gruppe = null
-	)
-	{
+	public function getStudentsOrgform(
+		$studiensemester_kurzbz,
+		$studiengang_kz,
+		$orgform_kurzbz,
+		$semester = null,
+		$verband = null,
+		$gruppe = null
+	) {
 		$this->addMeta('ci_method', __FUNCTION__);
 		$this->addMeta('ci_params', array(
 			'studiensemester_kurzbz' => $studiensemester_kurzbz,
@@ -388,10 +518,12 @@ class Students extends FHCAPI_Controller
 		$this->fetchStudents($studiensemester_kurzbz, $studiengang_kz, $semester, $verband, $gruppe, null, $orgform_kurzbz);
 	}

-	public function getStudentsSpezialgruppe($studiensemester_kurzbz,
-		$studiengang_kz, $semester, $gruppe_kurzbz,
-		$orgform_kurzbz = null)
-	{
+	public function getStudentsSpezialgruppe(
+		$studiensemester_kurzbz,
+		$studiengang_kz,
+		$semester,
+		$gruppe_kurzbz
+	) {
 		$this->addMeta('ci_method', __FUNCTION__);
 		$this->addMeta('ci_params', array(
 			'studiensemester_kurzbz' => $studiensemester_kurzbz,
@@ -403,10 +535,13 @@ class Students extends FHCAPI_Controller
 		$this->fetchStudents($studiensemester_kurzbz, $studiengang_kz, $semester, null, null, $gruppe_kurzbz, null);
 	}

-	public function getStudentsOrgformSpezialgruppe($studiensemester_kurzbz,
-		$orgform_kurzbz, $studiengang_kz, $semester, $gruppe_kurzbz
-	)
-	{
+	public function getStudentsOrgformSpezialgruppe(
+		$studiensemester_kurzbz,
+		$orgform_kurzbz,
+		$studiengang_kz,
+		$semester,
+		$gruppe_kurzbz
+	) {
 		$this->addMeta('ci_method', __FUNCTION__);
 		$this->addMeta('ci_params', array(
 			'studiensemester_kurzbz' => $studiensemester_kurzbz,
@@ -430,8 +565,15 @@ class Students extends FHCAPI_Controller
 	 *
 	 * @return void
 	 */
-	protected function fetchStudents($studiensemester_kurzbz, $studiengang_kz, $semester = null, $verband = null, $gruppe = null, $gruppe_kurzbz = null, $orgform_kurzbz = null)
-	{
+	protected function fetchStudents(
+		$studiensemester_kurzbz,
+		$studiengang_kz,
+		$semester = null,
+		$verband = null,
+		$gruppe = null,
+		$gruppe_kurzbz = null,
+		$orgform_kurzbz = null
+	) {
 		$this->load->model('crm/Prestudent_model', 'PrestudentModel');
 		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');

@@ -440,21 +582,6 @@ class Students extends FHCAPI_Controller
 			$this->terminateWithError($studiensemester_kurzbz . ' - ' . $this->p->t('lehre', 'error_noStudiensemester'));
 		}

-		/*
-			$this->PrestudentModel->addJoin('public.tbl_studiengang stg', 'studiengang_kz', 'LEFT');
-			$this->PrestudentModel->addJoin('public.tbl_person p', 'person_id');
-			$this->PrestudentModel->addJoin('public.tbl_student s', 'prestudent_id');
-			$this->PrestudentModel->addJoin('public.tbl_prestudentstatus pls', '
-				pls.status_kurzbz=public.get_rolle_prestudent(tbl_prestudent.prestudent_id, NULL) 
-				AND pls.prestudent_id=tbl_prestudent.prestudent_id 
-				AND pls.studiensemester_kurzbz=public.get_stdsem_prestudent(tbl_prestudent.prestudent_id, NULL) 
-				AND pls.ausbildungssemester=public.get_absem_prestudent(tbl_prestudent.prestudent_id, NULL)', 'LEFT');
-			$this->PrestudentModel->addJoin('lehre.tbl_studienplan sp', 'studienplan_id', 'LEFT');
-			$this->PrestudentModel->addJoin('public.tbl_benutzer b', 's.student_uid=b.uid');
-			$this->PrestudentModel->addJoin(
-				'public.tbl_studentlehrverband v',
-				'v.student_uid=s.student_uid AND v.studiensemester_kurzbz=' . $this->PrestudentModel->escape($studiensemester_kurzbz)
-			);*/
 		$this->prepareQuery($studiensemester_kurzbz, '');

 		$this->PrestudentModel->addSelect('v.semester');
@@ -462,18 +589,6 @@ class Students extends FHCAPI_Controller
 		$this->PrestudentModel->addSelect('v.gruppe');
 		$this->PrestudentModel->addSelect("'' AS priorisierung_relativ");

-		//add status per semester
-		$this->PrestudentModel->addSelect(
-			"(
-				SELECT status_kurzbz
-				FROM public.tbl_prestudentstatus pss
-				WHERE pss.prestudent_id = public.tbl_prestudent.prestudent_id
-				  AND pss.studiensemester_kurzbz = " . $this->PrestudentModel->escape($studiensemester_kurzbz) . "
-				ORDER BY GREATEST(pss.datum, '0001-01-01') DESC
-				LIMIT 1
-				) AS statusofsemester"
-		);
-

 		$where = [];

@@ -506,7 +621,6 @@ class Students extends FHCAPI_Controller
 					false
 				);
 			}
-
 		}

 		$this->addFilter($studiensemester_kurzbz);
@@ -540,39 +654,18 @@ class Students extends FHCAPI_Controller

 		$this->load->model('crm/Prestudent_model', 'PrestudentModel');

-		/*
-			$this->PrestudentModel->addJoin('public.tbl_studiengang stg', 'studiengang_kz', 'LEFT');
-			$this->PrestudentModel->addJoin('public.tbl_person p', 'person_id');
-			$this->PrestudentModel->addJoin('public.tbl_student s', 'prestudent_id', 'LEFT');
-			$this->PrestudentModel->addJoin('public.tbl_prestudentstatus pls', '
-				pls.status_kurzbz=public.get_rolle_prestudent(tbl_prestudent.prestudent_id, NULL) 
-				AND pls.prestudent_id=tbl_prestudent.prestudent_id 
-				AND pls.studiensemester_kurzbz=public.get_stdsem_prestudent(tbl_prestudent.prestudent_id, NULL) 
-				AND pls.ausbildungssemester=public.get_absem_prestudent(tbl_prestudent.prestudent_id, NULL)', 'LEFT');
-			$this->PrestudentModel->addJoin('lehre.tbl_studienplan sp', 'studienplan_id', 'LEFT');
-			$this->PrestudentModel->addJoin('public.tbl_benutzer b', 's.student_uid=b.uid', 'LEFT');
-			$this->PrestudentModel->addJoin(
-				'public.tbl_studentlehrverband v',
-				'v.student_uid=s.student_uid AND v.studiensemester_kurzbz=' . $this->PrestudentModel->escape($studiensemester_kurzbz),
-				'LEFT'
-			);*/
 		$this->prepareQuery($studiensemester_kurzbz);

-		$this->PrestudentModel->addSelect("COALESCE(v.semester::text, CASE WHEN public.get_rolle_prestudent(tbl_prestudent.prestudent_id, NULL) IN ('Aufgenommener', 'Bewerber', 'Wartender', 'interessent') THEN public.get_absem_prestudent(tbl_prestudent.prestudent_id, NULL)::text ELSE ''::text END) AS semester", false);
-		$this->PrestudentModel->addSelect('v.verband');
-		$this->PrestudentModel->addSelect('v.gruppe');
-
-		//add status per semester
-		$this->PrestudentModel->addSelect(
-			"(
-				SELECT status_kurzbz
-				FROM public.tbl_prestudentstatus pss
-				WHERE pss.prestudent_id = public.tbl_prestudent.prestudent_id
-				  AND pss.studiensemester_kurzbz = " . $this->PrestudentModel->escape($studiensemester_kurzbz) . "
-				ORDER BY GREATEST(pss.datum, '0001-01-01') DESC
-				LIMIT 1
-				) AS statusofsemester"
-		);
+		$this->PrestudentModel->addSelect("COALESCE(
+			v.semester::text, 
+			CASE 
+				WHEN pls.status_kurzbz IN ('Aufgenommener', 'Bewerber', 'Wartender', 'interessent') 
+				THEN pls.ausbildungssemester::text 
+				ELSE ''::text 
+			END
+		) AS semester", false);
+		$this->PrestudentModel->addSelect("COALESCE(v.verband::text, ''::text)");
+		$this->PrestudentModel->addSelect("COALESCE(v.gruppe::text, ''::text)");

 		$this->addSelectPrioRel();

@@ -609,40 +702,12 @@ class Students extends FHCAPI_Controller

 		$this->load->model('crm/Prestudent_model', 'PrestudentModel');

-		/*
-			$this->PrestudentModel->addJoin('public.tbl_studiengang stg', 'studiengang_kz', 'LEFT');
-			$this->PrestudentModel->addJoin('public.tbl_person p', 'person_id');
-			$this->PrestudentModel->addJoin('public.tbl_student s', 'prestudent_id');
-			$this->PrestudentModel->addJoin('public.tbl_prestudentstatus pls', '
-				pls.status_kurzbz=public.get_rolle_prestudent(tbl_prestudent.prestudent_id, NULL) 
-				AND pls.prestudent_id=tbl_prestudent.prestudent_id 
-				AND pls.studiensemester_kurzbz=public.get_stdsem_prestudent(tbl_prestudent.prestudent_id, NULL) 
-				AND pls.ausbildungssemester=public.get_absem_prestudent(tbl_prestudent.prestudent_id, NULL)', 'LEFT');
-			$this->PrestudentModel->addJoin('lehre.tbl_studienplan sp', 'studienplan_id', 'LEFT');
-			$this->PrestudentModel->addJoin('public.tbl_benutzer b', 's.student_uid=b.uid');
-			$this->PrestudentModel->addJoin(
-				'public.tbl_studentlehrverband v',
-				'v.student_uid=s.student_uid AND v.studiensemester_kurzbz=' . $this->PrestudentModel->escape($studiensemester_kurzbz),
-				'LEFT'
-			);*/
 		$this->prepareQuery($studiensemester_kurzbz);

 		$this->PrestudentModel->addSelect('v.semester');
 		$this->PrestudentModel->addSelect('v.verband');
 		$this->PrestudentModel->addSelect('v.gruppe');

-		//add status per semester
-		$this->PrestudentModel->addSelect(
-			"(
-				SELECT status_kurzbz
-				FROM public.tbl_prestudentstatus pss
-				WHERE pss.prestudent_id = public.tbl_prestudent.prestudent_id
-				  AND pss.studiensemester_kurzbz = " . $this->PrestudentModel->escape($studiensemester_kurzbz) . "
-				ORDER BY GREATEST(pss.datum, '0001-01-01') DESC
-				LIMIT 1
-				) AS statusofsemester"
-		);
-
 		$this->addSelectPrioRel();


@@ -681,33 +746,12 @@ class Students extends FHCAPI_Controller

 		$this->load->model('crm/Prestudent_model', 'PrestudentModel');

-		/*
-			$this->PrestudentModel->addJoin('public.tbl_person p', 'person_id');
-			$this->PrestudentModel->addJoin('public.tbl_student s', 'prestudent_id');
-			$this->PrestudentModel->addJoin('public.tbl_benutzer b', 's.student_uid=b.uid');
-			$this->PrestudentModel->addJoin(
-				'public.tbl_studentlehrverband v',
-				'v.student_uid=s.student_uid AND v.studiensemester_kurzbz=' . $this->PrestudentModel->escape($studiensemester_kurzbz),
-				'LEFT'
-			);*/
 		$this->prepareQuery($studiensemester_kurzbz);

 		$this->PrestudentModel->addSelect('v.semester');
 		$this->PrestudentModel->addSelect('v.verband');
 		$this->PrestudentModel->addSelect('v.gruppe');

-		//add status per semester
-		$this->PrestudentModel->addSelect(
-			"(
-				SELECT status_kurzbz
-				FROM public.tbl_prestudentstatus pss
-				WHERE pss.prestudent_id = public.tbl_prestudent.prestudent_id
-				  AND pss.studiensemester_kurzbz = " . $this->PrestudentModel->escape($studiensemester_kurzbz) . "
-				ORDER BY GREATEST(pss.datum, '0001-01-01') DESC
-				LIMIT 1
-				) AS statusofsemester"
-		);
-
 		$this->addSelectPrioRel();

 		$this->addFilter($studiensemester_kurzbz);
@@ -721,6 +765,81 @@ class Students extends FHCAPI_Controller
 		$this->terminateWithSuccess($data);
 	}

+	/**
+	 * @param string		$studiensemester_kurzbz
+	 *
+	 * @return void
+	 */
+	public function search($studiensemester_kurzbz)
+	{
+		$this->addMeta('ci_method', __FUNCTION__);
+		$this->addMeta('ci_params', array(
+			'studiensemester_kurzbz' => $studiensemester_kurzbz
+		));
+
+		$this->load->library('SearchLib', [ 'config' => 'searchstv' ]);
+		$this->load->library('form_validation');
+
+		$this->form_validation->set_rules('searchstr', 'searchstr', 'required');
+		$this->form_validation->set_rules('types[]', 'types', 'required');
+
+		if (!$this->form_validation->run())
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+
+		$result = $this->searchlib->search($this->input->post('searchstr'), $this->input->post('types'));
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+
+		$this->load->model('crm/Prestudent_model', 'PrestudentModel');
+
+		$this->prepareQuery($studiensemester_kurzbz);
+
+		$this->PrestudentModel->addSelect("COALESCE(v.semester::text, CASE WHEN public.get_rolle_prestudent(tbl_prestudent.prestudent_id, NULL) IN ('Aufgenommener', 'Bewerber', 'Wartender', 'interessent') THEN public.get_absem_prestudent(tbl_prestudent.prestudent_id, NULL)::text ELSE ''::text END) AS semester", false);
+		$this->PrestudentModel->addSelect('v.verband');
+		$this->PrestudentModel->addSelect('v.gruppe');
+
+		//add status per semester
+		$this->PrestudentModel->addSelect(
+			"public.get_rolle_prestudent(public.tbl_prestudent.prestudent_id, "
+				. $this->PrestudentModel->escape($studiensemester_kurzbz)
+				. ")  AS statusofsemester"
+		);
+
+		$this->addSelectPrioRel();
+
+		$this->addFilter($studiensemester_kurzbz);
+
+		$prestudent_ids = [];
+		$student_uids = [];
+			$this->addMeta('data', $data);
+		foreach ($data as $row) {
+			$dataset = json_decode($row->data);
+			if ($row->type == 'prestudent') {
+				$prestudent_ids[] = $dataset->prestudent_id;
+			} elseif ($row->type == 'student') {
+				$student_uids[] = $dataset->uid;
+			}
+		}
+
+		if ($prestudent_ids && $student_uids) {
+			$this->PrestudentModel->db->where_in('tbl_prestudent.prestudent_id', $prestudent_ids);
+			$this->PrestudentModel->db->or_where_in('s.student_uid', $student_uids);
+		} elseif ($prestudent_ids) {
+			$this->PrestudentModel->db->where_in('tbl_prestudent.prestudent_id', $prestudent_ids);
+		} elseif ($student_uids) {
+			$this->PrestudentModel->db->where_in('s.student_uid', $student_uids);
+		} else {
+			$this->terminateWithSuccess([]);
+		}
+
+		$result = $this->PrestudentModel->load();
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess($data);
+	}
+
 	/**
 	 * @param string|null	$studiensemester_kurzbz
 	 * @param string		$type
@@ -771,6 +890,13 @@ class Students extends FHCAPI_Controller
 		// verband
 		// gruppe

+		//add status per semester
+		$this->PrestudentModel->addSelect(
+			"public.get_rolle_prestudent(public.tbl_prestudent.prestudent_id, "
+				. $this->PrestudentModel->escape($studiensemester_kurzbz)
+				. ")  AS statusofsemester"
+		);
+
 		$this->PrestudentModel->addSelect('UPPER(stg.typ || stg.kurzbz) AS studiengang');
 		$this->PrestudentModel->addSelect('tbl_prestudent.studiengang_kz');
 		$this->PrestudentModel->addSelect('stg.bezeichnung AS stg_bezeichnung');
@@ -806,13 +932,6 @@ class Students extends FHCAPI_Controller
 		$this->PrestudentModel->addSelect('mentor');
 		$this->PrestudentModel->addSelect('b.aktiv AS bnaktiv');

-		/*$this->PrestudentModel->addSelect('tbl_prestudent.reihungstest_id');
-		$this->PrestudentModel->addSelect('tbl_prestudent.anmeldungreihungstest');
-		$this->PrestudentModel->addSelect('tbl_prestudent.gsstudientyp_kurzbz');
-		$this->PrestudentModel->addSelect('tbl_prestudent.priorisierung');
-		$this->PrestudentModel->addSelect('p.zugangscode');
-		$this->PrestudentModel->addSelect('p.bpk');*/
-
 		$this->PrestudentModel->db->where_in('tbl_prestudent.studiengang_kz', $this->allowedStgs);

 		$this->PrestudentModel->addOrder('nachname');
@@ -827,13 +946,13 @@ class Students extends FHCAPI_Controller
 		$this->PrestudentModel->addSelect("(
 			SELECT count(*)
 			FROM (
-				SELECT *, public.get_rolle_prestudent(tbl_prestudent.prestudent_id, NULL) AS laststatus
-				FROM PUBLIC.tbl_prestudent pss
-				JOIN PUBLIC.tbl_prestudentstatus USING (prestudent_id)
+				SELECT *, public.get_rolle_prestudent(pss.prestudent_id, NULL) AS laststatus
+				FROM public.tbl_prestudent pss
+				JOIN public.tbl_prestudentstatus USING (prestudent_id)
 				WHERE person_id = p.person_id
 				AND studiensemester_kurzbz = (
 					SELECT studiensemester_kurzbz
-					FROM PUBLIC.tbl_prestudentstatus
+					FROM public.tbl_prestudentstatus
 					WHERE prestudent_id = tbl_prestudent.prestudent_id
 					AND status_kurzbz = 'Interessent'
 					LIMIT 1
@@ -842,7 +961,7 @@ class Students extends FHCAPI_Controller
 			) prest
 			WHERE laststatus NOT IN ('Abbrecher', 'Abgewiesener', 'Absolvent')
 			AND priorisierung <= tbl_prestudent.priorisierung
-		) || ' (' || tbl_prestudent.priorisierung || ')' AS priorisierung_relativ", false);
+		) || ' (' || COALESCE(tbl_prestudent.priorisierung::text, ' '::text) || ')' AS priorisierung_relativ", false);
 	}

 	/**
@@ -854,40 +973,20 @@ class Students extends FHCAPI_Controller
 	 */
 	protected function addFilter($studiensemester_kurzbz)
 	{
-		$filter = json_decode($this->input->get('filter'), true);
+		$filter = $this->input->post('filter');
+		
 		if (!is_array($filter))
 		{
-			$this->addMeta('addfilter', 'invalid filter: ' . $this->input->get('filter'));
+			$this->addMeta('addfilter', 'invalid filter: ' . json_encode($this->input->post('filter')));
 			return;
 		}
-		if (isset($filter['konto_count_0'])) {
-			$bt = $this->PrestudentModel->escape($filter['konto_count_0']);
-			$stdsem = $this->PrestudentModel->escape($studiensemester_kurzbz);
-
-			$this->PrestudentModel->db->where('(
-				SELECT count(*) 
-				FROM public.tbl_konto 
-				WHERE person_id=tbl_prestudent.person_id 
-				AND buchungstyp_kurzbz=' . $bt . ' 
-				AND studiensemester_kurzbz=' . $stdsem . '
-			) =', 0);
-			$this->PrestudentModel->db->where('get_rolle_prestudent(tbl_prestudent.prestudent_id, NULL) !=', 'Incoming');
-		}
-		if (isset($filter['konto_missing_counter'])) {
-			$bt = $this->PrestudentModel->escape($filter['konto_missing_counter']);
-			$stg = '';
-			if ($this->variablelib->getVar('kontofilterstg') == 'true')
-				$stg = ' AND studiengang_kz=tbl_prestudent.studiengang_kz';
-
-			$bt = $bt == 'alle' ? '' : ' AND buchungstyp_kurzbz=' . $bt;
-
-			$this->PrestudentModel->db->where('(
-				SELECT sum(betrag) 
-				FROM public.tbl_konto 
-				WHERE person_id=tbl_prestudent.person_id' .
-				$bt .
-				$stg . '
-			) !=', 0);
+		foreach ($filter as $item) {
+			if (isset($item['usestdsem']) && $item['usestdsem'])
+				$item['studiensemester_kurzbz'] = $studiensemester_kurzbz;
+			if (!$this->PrestudentModel->addFilter($item)) {
+				$this->addMeta('addfilter', 'invalid filter: ' . json_encode($item));
+				return;
+			}
 		}
 	}
 }
@@ -165,7 +165,17 @@ class Verband extends FHCAPI_Controller
 		
 		$this->StudiengangModel->addDistinct();
 		$this->StudiengangModel->addSelect("CONCAT(" . $this->StudiengangModel->escape($link) . ", semester) AS link", false);
-		$this->StudiengangModel->addSelect("CONCAT(UPPER(CONCAT(typ, kurzbz)), '-', semester, (SELECT CASE WHEN bezeichnung IS NULL OR bezeichnung='' THEN ''::TEXT ELSE CONCAT(' (', bezeichnung, ')') END FROM public.tbl_lehrverband WHERE studiengang_kz=v.studiengang_kz AND semester=v.semester ORDER BY verband, gruppe LIMIT 1)) AS name", false);
+		$this->StudiengangModel->addSelect("CONCAT(
+			UPPER(CONCAT(typ, kurzbz)), 
+			'-', 
+			semester, 
+			(
+				SELECT CASE WHEN bezeichnung IS NULL OR bezeichnung='' THEN ''::TEXT ELSE CONCAT(' (', bezeichnung, ')') END 
+				FROM public.tbl_lehrverband 
+				WHERE studiengang_kz=v.studiengang_kz AND semester=v.semester 
+				ORDER BY verband, gruppe LIMIT 1
+			)
+		) AS name", false);

 		$this->StudiengangModel->addSelect('semester');
 		$this->StudiengangModel->addSelect($this->StudiengangModel->escape($studiengang_kz) . '::integer AS stg_kz', false);
@@ -173,6 +183,7 @@ class Verband extends FHCAPI_Controller
 		$this->StudiengangModel->addOrder('semester');

 		if ($org_form !== null) {
+			$this->StudiengangModel->addSelect("v.orgform_kurzbz");
 			$this->StudiengangModel->db->group_start();
 			$this->StudiengangModel->db->where('v.semester', 0);
 			$this->StudiengangModel->db->or_where('v.orgform_kurzbz', $org_form);
@@ -188,6 +199,8 @@ class Verband extends FHCAPI_Controller
 		array_unshift($list, [
 			'name' => 'PreStudent',
 			'link' => $link . 'prestudent',
+			'no_sem_reload' => true,
+			'stg_kz' => (int)$studiengang_kz,
 			'children' => $this->getStdSem($link . 'prestudent/', $studiengang_kz)
 		]);

@@ -202,6 +215,7 @@ class Verband extends FHCAPI_Controller
 					$this->StudienordnungModel->addDistinct();
 					$this->StudienordnungModel->addSelect("CONCAT(studiengang_kz, '/', p.orgform_kurzbz) AS link");
 					$this->StudienordnungModel->addSelect("p.orgform_kurzbz AS name");
+					$this->StudienordnungModel->addSelect("studiengang_kz AS stg_kz");

 					$this->StudienordnungModel->addJoin('lehre.tbl_studienplan p', 'studienordnung_id');

@@ -215,7 +229,6 @@ class Verband extends FHCAPI_Controller
 					$list = array_merge($list, $result);
 				}
 			}
-
 		}
 		$this->terminateWithSuccess($list);
 	}
@@ -271,6 +284,7 @@ class Verband extends FHCAPI_Controller
 		$this->StudiengangModel->addSelect("CONCAT(UPPER(CONCAT(typ, kurzbz)), '-', semester, verband, (SELECT CASE WHEN bezeichnung IS NULL OR bezeichnung='' THEN ''::TEXT ELSE CONCAT(' (', bezeichnung, ')') END FROM public.tbl_lehrverband WHERE studiengang_kz=v.studiengang_kz AND semester=v.semester AND verband=v.verband ORDER BY gruppe LIMIT 1)) AS name", false);
 		$this->StudiengangModel->addSelect("CASE WHEN MAX(gruppe)='' OR MAX(gruppe)=' ' THEN TRUE ELSE FALSE END AS leaf");

+		$this->StudiengangModel->addSelect($this->StudiengangModel->escape($semester) . ' AS semester');
 		$this->StudiengangModel->addSelect('verband');
 		$this->StudiengangModel->addSelect($this->StudiengangModel->escape($studiengang_kz) . '::integer AS stg_kz', false);
 		
@@ -319,6 +333,8 @@ class Verband extends FHCAPI_Controller
 		$this->StudiengangModel->addSelect("CONCAT(UPPER(CONCAT(typ, kurzbz)), '-', semester, verband, gruppe, (SELECT CASE WHEN bezeichnung IS NULL OR bezeichnung='' THEN ''::TEXT ELSE CONCAT(' (', bezeichnung, ')') END FROM public.tbl_lehrverband WHERE studiengang_kz=v.studiengang_kz AND semester=v.semester AND verband=v.verband AND gruppe=v.gruppe ORDER BY gruppe LIMIT 1)) AS name", false);
 		$this->StudiengangModel->addSelect("TRUE AS leaf", false);

+		$this->StudiengangModel->addSelect('v.semester');
+		$this->StudiengangModel->addSelect('v.verband');
 		$this->StudiengangModel->addSelect('gruppe');
 		$this->StudiengangModel->addSelect($this->StudiengangModel->escape($studiengang_kz) . '::integer AS stg_kz', false);
 		
@@ -0,0 +1,104 @@
+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+class Vertrag extends FHCAPI_Controller
+{
+	public function __construct()
+	{
+		parent::__construct([
+			'getVertrag' => ['admin:r', 'assistenz:r'],
+			'cancelVertrag' => ['admin:r', 'assistenz:r']
+		]);
+
+		// Load Libraries
+		$this->load->library('form_validation');
+
+		// Load language phrases
+		$this->loadPhrases([
+			'ui',
+			'person',
+			'projektarbeit'
+		]);
+
+		// Load models
+		$this->load->model('accounting/Vertrag_model', 'VertragModel');
+		$this->load->model('education/Lehrveranstaltung_model', 'LehrveranstaltungModel');
+		$this->load->model('person/Benutzer_model', 'BenutzerModel');
+
+		// load libraries
+		$this->load->library('PermissionLib');
+	}
+
+	public function getVertrag()
+	{
+		$vertrag_id = $this->input->get('vertrag_id');
+
+		if (!isset($vertrag_id) || !is_numeric($vertrag_id))
+			$this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Vertrag ID']), self::ERROR_TYPE_GENERAL);
+
+		$result = $this->VertragModel->getVertragById($vertrag_id);
+
+		if (isError($result))
+		{
+			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+		}
+
+		if (!hasData($result)) $this->terminateWithSuccess([]);
+
+		$vertrag = getData($result)[0];
+
+		$this->terminateWithSuccess($vertrag);
+	}
+
+	public function cancelVertrag()
+	{
+		$vertrag_id = $this->input->post('vertrag_id');
+		$person_id = $this->input->post('person_id');
+
+		if (!isset($vertrag_id) || !is_numeric($vertrag_id))
+			$this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Vertrag ID']), self::ERROR_TYPE_GENERAL);
+		if (!isset($person_id) || !is_numeric($person_id))
+			$this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Person ID']), self::ERROR_TYPE_GENERAL);
+
+		// * first find lehrveranstaltung_id of the contracts lehrveranstaltung
+		$this->VertragModel->addSelect('lehrveranstaltung_id');
+		$this->VertragModel->addJoin('lehre.tbl_lehrveranstaltung', 'lehrveranstaltung_id', 'LEFT');
+		$result = $this->VertragModel->loadWhere(['vertrag_id' => $vertrag_id]);
+
+		if (isError($result)) $this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+
+		if (!hasData($result)) $this->terminateWithSuccess([]);
+
+		$lehrveranstaltung_id = getData($result)[0]->lehrveranstaltung_id;
+
+		$allOe = $this->LehrveranstaltungModel->getAllOe($lehrveranstaltung_id);
+
+		if (isError($allOe)) $this->terminateWithError(getError($allOe), self::ERROR_TYPE_GENERAL);
+
+		$allOe = hasData($allOe) ? getData($allOe) : [];
+
+		$this->addMeta('oe', $allOe);
+
+		// * then check if the user has permissions to cancel the corresponding lv-organisational units
+		if (!$this->permissionlib->isBerechtigtMultipleOe('admin', $allOe, 'suid') &&
+			!$this->permissionlib->isBerechtigtMultipleOe('lehre/lehrauftrag_bestellen', $allOe, 'suid'))
+		{
+			return $this->_outputAuthError([$this->router->method => ['admin:rw', 'lehrauftrag_bestellen:rw']]);
+		}
+
+		$uidResult = $this->BenutzerModel->getFromPersonId($person_id);
+
+		if (isError($uidResult)) $this->terminateWithError(getError($uidResult), self::ERROR_TYPE_GENERAL);
+
+		if (!hasData($uidResult)) $this->terminateWithError("no user found", self::ERROR_TYPE_GENERAL);
+
+		$mitarbeiter_uid = getData($uidResult)[0]->uid;
+
+		$result = $this->VertragModel->cancelVertrag($vertrag_id, $mitarbeiter_uid);
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess($data);
+	}
+}
@@ -51,13 +51,17 @@ class Vorlagen extends FHCAPI_Controller
 		$this->load->model('person/Benutzerfunktion_model', 'BenutzerfunktionModel');
 		$result = $this->BenutzerfunktionModel->getBenutzerfunktionByUid($uid, 'oezuordnung');

-		$data = $this->getDataOrTerminateWithError($result);
-		$oe_kurzbz = current($data);
+		if (hasData($result))
+		{
+			$data = getData($result);

-		$result = $this->VorlageModel->getAllVorlagenByOe($oe_kurzbz->oe_kurzbz);
-		$data = $this->getDataOrTerminateWithError($result);
+			$oe_kurzbz = array_column($data, 'oe_kurzbz');
+			$result = $this->VorlageModel->getAllVorlagenByOe($oe_kurzbz);
+
+			$this->terminateWithSuccess(hasData($result) ? getData($result) : array());
+		}
+		$this->terminateWithSuccess(array());

-		$this->terminateWithSuccess($data);
 	}

 }
@@ -233,10 +233,10 @@ class Person extends API_Controller
 				//Quersumme bilden
 				for ($i = 0; $i < 10; $i++)
 				{
-					$erg += $gewichtung[$i] * $tmpSvnr{$i};
+					$erg += $gewichtung[$i] * $tmpSvnr[$i];
 				}

-				if ($tmpSvnr{3} != ($erg % 11)) //Vergleichen der Pruefziffer mit Quersumme Modulo 11
+				if ($tmpSvnr[3] != ($erg % 11)) //Vergleichen der Pruefziffer mit Quersumme Modulo 11
 				{
 					return error('SVNR ist ungueltig');
 				}
@@ -244,7 +244,7 @@ class Person extends API_Controller
 				if (mb_strlen($person['svnr']) == 12)
 				{
 					$last = substr($person['svnr'], 10, 12);
-					if ($last{0} != 'v' || !is_numeric($last{1}))
+					if ($last[0] != 'v' || !is_numeric($last[1]))
 					{
 						return error('SVNR ist ungueltig');
 					}
@@ -33,19 +33,26 @@ class Widget extends Auth_Controller
 			return $this->outputJsonSuccess([
 				"widget_id" => 0,
 				"widget_kurzbz" => "notfound",
-				"arguments" => json_encode([
+				"arguments" => [
 					"className" => 'alert-danger',
 					"title" => 'Widget Not Found',
 					"msg" => 'The widget with the id ' . $widget_id . ' could not be found'
-				]),
-				"setup" => json_encode([
+				],
+				"setup" => [
 					"name" => 'Widget Not Found',
-					"file" => 'DashboardWidget/Default.js',
+					"file" => absoluteJsImportUrl('public/js/components/DashboardWidget/Default.js'),
 					"width" => 1,
 					"height" => 1
-				])
+				]
 			]);
-		return $this->outputJsonSuccess(current(getData($widget)));
+
+		$widget = current(getData($widget));
+		$widget->arguments = json_decode($widget->arguments);
+		$tmpsetup = json_decode($widget->setup);
+		$tmpsetup->file = absoluteJsImportUrl($tmpsetup->file);
+		$widget->setup = $tmpsetup;
+
+		return $this->outputJsonSuccess($widget);
 	}
 	
 	public function getAll()
@@ -56,7 +63,16 @@ class Widget extends Auth_Controller
 		if (isError($result))
 			return $this->outputJsonError(getError($result));

-		$this->outputJsonSuccess(getData($result) ?: []);
+		$tmpwidgets = getData($result) ?: [];
+		$widgets = array_map(function($widget) {
+			$widget->arguments = json_decode($widget->arguments);
+			$tmpsetup = json_decode($widget->setup);
+			$tmpsetup->file = absoluteJsImportUrl($tmpsetup->file);
+			$widget->setup = $tmpsetup;
+			return $widget;
+		}, $tmpwidgets);
+
+		$this->outputJsonSuccess($widgets);
 	}
 	
 	public function getWidgetsForDashboard()
@@ -71,7 +87,16 @@ class Widget extends Auth_Controller
 			]);
 		}

-		$this->outputJsonSuccess(getData($result) ?: []);
+		$tmpwidgets = getData($result) ?: [];
+		$widgets = array_map(function($widget) {
+			$widget->arguments = json_decode($widget->arguments);
+			$tmpsetup = json_decode($widget->setup);
+			$tmpsetup->file = absoluteJsImportUrl($tmpsetup->file);
+			$widget->setup = $tmpsetup;
+			return $widget;
+		}, $tmpwidgets);
+
+		$this->outputJsonSuccess($widgets);
 	}
 	
 	public function setAllowed()
@@ -0,0 +1,621 @@
+<?php
+
+if (!defined('BASEPATH')) exit('No direct script access allowed');
+
+class AbgabetoolJob extends JOB_Controller
+{
+
+	/**
+	 * Constructor
+	 */
+	public function __construct()
+	{
+		parent::__construct();
+
+		$this->_ci =& get_instance();
+
+		$this->_ci->load->helper('hlp_sancho_helper');
+
+		$this->_ci->load->model('education/Projektarbeit_model', 'ProjektarbeitModel');
+		$this->_ci->load->model('education/Projektbetreuer_model', 'ProjektbetreuerModel');
+		$this->_ci->load->model('education/Paabgabe_model', 'PaabgabeModel');
+		$this->_ci->load->model('crm/Student_model', 'StudentModel');
+		$this->_ci->load->model('organisation/Studiengang_model', 'StudiengangModel');
+		$this->_ci->load->model('organisation/Organisationseinheit_model', 'OrganisationseinheitModel');
+
+		$this->_ci->load->config('abgabe');
+		$this->loadPhrases([
+			'abgabetool'
+		]);
+	}
+
+	public function notifyAssistenzAboutChangedAbgaben() {
+
+		$this->_ci->logInfo('Start job FHC-Core->notifyAssistenzAboutChangedAbgaben');
+
+		$interval = $this->_ci->config->item('PAABGABE_EMAIL_JOB_INTERVAL');
+		$relevantTypes = $this->_ci->config->item('RELEVANT_PAABGABETYPEN_SAMMELMAIL_ASSISTENZ');
+		// get all new or changed termine in interval
+		$result = $this->_ci->PaabgabeModel->findAbgabenNewOrUpdatedSince($interval, $relevantTypes);
+		
+		$retval = getData($result);
+
+		if(count($retval) == 0) {
+			$this->_ci->logInfo("Keine Emails an Assistenzen über neue oder veränderte Termine versandt");
+			return;
+		}
+
+		// group changed/new abgaben for projektarbeiten
+		$projektarbeiten = [];
+		foreach($retval as $newOrChangedAbgabe) {
+			// Check if the current item has a 'projektarbeit_id' field.
+			// Replace 'projektarbeit_id' with the actual key name if it's different.
+			if (isset($newOrChangedAbgabe->projektarbeit_id)) {
+				$projektarbeitId = $newOrChangedAbgabe->projektarbeit_id;
+
+				// If the 'projektarbeit_id' is not yet a key in $projektarbeiten, 
+				// initialize it as an empty array.
+				if (!isset($projektarbeiten[$projektarbeitId])) {
+					$projektarbeiten[$projektarbeitId] = [];
+				}
+
+				// Add the current row to the array associated with its 'projektarbeit_id'.
+				$projektarbeiten[$projektarbeitId][] = $newOrChangedAbgabe;
+			}
+		}
+
+		// for each projektarbeit fetch their assistenz and same them in their own dictionary to avoid too many mails
+		$assistenzMap = [];
+		// for each projektarbeit fetch their betreuer and save them in their own dictionary to avoid too many mails
+		$projektarbeitBetreuerMap = [];
+		forEach($projektarbeiten as $projektarbeit_id => $abgaben) {
+			
+			$assistenzResult = $this->_ci->OrganisationseinheitModel->getAssistenzForOE($abgaben[0]->stg_oe_kurzbz);
+
+			forEach($assistenzResult->retval as $assistenzRow) {
+				if (!isset($assistenzMap[$assistenzRow->person_id])) {
+					$assistenzMap[$assistenzRow->person_id] = [];
+				}
+
+				// Add the current $assistenzRow to the $assistenzMap as an array associated with its projektarbeit_id.
+				$assistenzMap[$assistenzRow->person_id][] = [$projektarbeit_id, $assistenzRow];
+			}
+
+			$betreuerResult = $this->_ci->ProjektbetreuerModel->getAllBetreuerOfProjektarbeit($projektarbeit_id);
+
+			forEach($betreuerResult->retval as $betreuerRow) {
+				if (!isset($projektarbeitBetreuerMap[$projektarbeit_id])) {
+					$projektarbeitBetreuerMap[$projektarbeit_id] = [];
+				}
+
+				// Add the current betreuerRow to the betreuerMap as an array associated with its projektarbeit_id.
+				$projektarbeitBetreuerMap[$projektarbeit_id][] = $betreuerRow;
+			}
+		}
+
+		$count = 0;
+		foreach($assistenzMap as $assistenz_person_id => $tupelArr) {
+
+			$abgabenString = '<div style="font-family: Arial, sans-serif; color: #333;">';
+
+			foreach($tupelArr as $tupel) {
+				$projektarbeit_id = $tupel[0];
+				$assistenzRow = $tupel[1];
+
+				$betreuerArray = $projektarbeitBetreuerMap[$projektarbeit_id] ?? [];
+				$changedAbgaben = $projektarbeiten[$projektarbeit_id];
+
+				$relevantAbgaben = array_values(array_filter($changedAbgaben, function($abgabetermin) use ($assistenzRow) {
+					if($abgabetermin->updatevon == null && $abgabetermin->insertvon != $assistenzRow->uid) {
+						return $abgabetermin;
+					} else if($abgabetermin->updatevon != null && $abgabetermin->updatevon != $assistenzRow->uid) {
+						return $abgabetermin;
+					}
+				}));
+
+				if(count($relevantAbgaben) == 0) {
+					continue;
+				}
+
+				// Format the Student Name
+				$s = $relevantAbgaben[0];
+				$nameParts = [];
+				if (!empty($s->titelpre)) $nameParts[] = $s->titelpre;
+				$nameParts[] = $s->vorname;
+				$nameParts[] = $s->nachname;
+				if (!empty($s->titelpost)) $nameParts[] = $s->titelpost;
+				$studentFullName = implode(' ', $nameParts);
+
+				// Format the Supervisors string
+				$betreuerStrings = [];
+				foreach($betreuerArray as $b) {
+					$bNameParts = [];
+					if (!empty($b->titelpre)) $bNameParts[] = $b->titelpre;
+					$bNameParts[] = $b->vorname;
+					$bNameParts[] = $b->nachname;
+					if (!empty($b->titelpost)) $bNameParts[] = $b->titelpost;
+
+					$bFullName = implode(' ', $bNameParts);
+					$betreuerStrings[] = "{$bFullName} ({$b->betreuerart_kurzbz})";
+				}
+				$allBetreuerFormatted = implode(', ', $betreuerStrings);
+
+				$projektarbeit_titel = $s->titel ?? 'Kein Titel vergeben';
+
+				// Project Header Section
+				$abgabenString .= "
+				<div style='margin-top: 25px; padding: 12px; background-color: #f8f9fa; border-left: 4px solid #007bff; border-bottom: 1px solid #eee;'>
+					<strong style='font-size: 16px; color: #0056b3;'>Projekt: {$projektarbeit_titel}</strong><br/>
+					<div style='margin-top: 5px; font-size: 14px;'>
+						<strong>Studierende/r:</strong> {$studentFullName}
+					</div>
+					<div style='margin-top: 3px; font-size: 14px;'>
+						<strong>Betreuer:</strong> {$allBetreuerFormatted}
+					</div>
+					<span style='color: #666; font-size: 12px;'>
+						ID: {$projektarbeit_id} | Stg: {$s->stgtyp}{$s->stgkz} ({$s->studiensemester_kurzbz})
+					</span>
+				</div>";
+
+				// Start Table
+				$abgabenString .= '
+				<table style="width: 100%; border-collapse: collapse; margin-bottom: 25px;">
+					<thead>
+						<tr style="background-color: #eee; text-align: left;">
+							<th style="padding: 10px; border: 1px solid #ddd; font-size: 13px; width: 20%;">Zieldatum</th>
+							<th style="padding: 10px; border: 1px solid #ddd; font-size: 13px;">Bezeichnung</th>
+						</tr>
+					</thead>
+					<tbody>';
+
+				foreach ($relevantAbgaben as $abgabe) {
+					$dateEmailFormatted = (new DateTime($abgabe->datum))->format('d.m.Y');
+					$abgabedatumFormatted = (new DateTime($abgabe->abgabedatum))->format('d.m.Y');
+					$kurzbzLine = !empty($abgabe->kurzbz) ? "<br/><small style='color: #777; font-style: italic;'>{$abgabe->kurzbz}</small>" : "";
+
+					$abgabenString .= "
+					<tr>
+						<td style='padding: 10px; border: 1px solid #ddd; font-size: 13px; vertical-align: top;'>{$dateEmailFormatted}</td>
+						<td style='padding: 10px; border: 1px solid #ddd; font-size: 13px;'>
+							<strong>{$abgabe->bezeichnung}</strong>{$kurzbzLine}
+						</td>
+					</tr>";
+				}
+
+				$abgabenString .= '</tbody></table>';
+			}
+
+			$abgabenString .= '</div>';
+
+			// done with building the change list, now send it
+			$assistenzRow = $tupelArr[0][1];
+			$anrede = $assistenzRow->anrede;
+			$anredeFillString = $assistenzRow->anrede == "Herr" ? "r" : "";
+			$fullFormattedNameString = $assistenzRow->first;
+			
+			
+
+			$path = $this->_ci->config->item('URL_ASSISTENZ');
+			$url = CIS_ROOT.$path;
+
+			$body_fields = array(
+				'anrede' => $anrede,
+				'anredeFillString' => $anredeFillString,
+				'fullFormattedNameString' => $fullFormattedNameString,
+				'abgabenString' => $abgabenString,
+				'linkAbgabetool' => $url
+			);
+
+			$email = $assistenzRow->uid."@".DOMAIN;
+			
+			// send email with bundled info
+			sendSanchoMail(
+				'PAAChangesAssSM',
+				$body_fields,
+				$email,
+				$this->p->t('abgabetool', 'changedAbgabeterminev2')
+			);
+
+			$count++;
+		}
+
+		$this->_ci->logInfo($count . " Emails erfolgreich versandt");
+		$this->_ci->logInfo('End job FHC-Core->notifyAssistenzAboutChangedAbgaben');
+	}
+
+	public function notifyBetreuerAboutChangedAbgaben() {
+		
+		$this->_ci->logInfo('Start job FHC-Core->notifyBetreuerAboutChangedAbgaben');
+
+		$interval = $this->_ci->config->item('PAABGABE_EMAIL_JOB_INTERVAL');
+
+		$relevantTypes = $this->_ci->config->item('RELEVANT_PAABGABETYPEN_SAMMELMAIL_BETREUER');
+
+		// get all new or changed termine in interval
+		$result = $this->_ci->PaabgabeModel->findAbgabenNewOrUpdatedSince($interval, $relevantTypes);
+		$retval = getData($result);
+
+		if(count($retval) == 0) {
+			$this->_ci->logInfo("Keine Emails an Betreuer über neue oder veränderte Termine versandt");
+			return;
+		}
+		
+		// group changed/new abgaben for projektarbeiten
+		$projektarbeiten = [];
+		foreach($retval as $newOrChangedAbgabe) {
+			// Check if the current item has a 'projektarbeit_id' field.
+			// Replace 'projektarbeit_id' with the actual key name if it's different.
+			if (isset($newOrChangedAbgabe->projektarbeit_id)) {
+				$projektarbeitId = $newOrChangedAbgabe->projektarbeit_id;
+
+				// If the 'projektarbeit_id' is not yet a key in $projektarbeiten, 
+				// initialize it as an empty array.
+				if (!isset($projektarbeiten[$projektarbeitId])) {
+					$projektarbeiten[$projektarbeitId] = [];
+				}
+
+				// Add the current row to the array associated with its 'projektarbeit_id'.
+				$projektarbeiten[$projektarbeitId][] = $newOrChangedAbgabe;
+			}
+		}
+
+		// for each projektarbeit fetch their betreuer and save them in their own dictionary to avoid too many mails
+		$betreuerMap = [];
+		forEach($projektarbeiten as $projektarbeit_id => $abgaben) {
+			$betreuerResult = $this->_ci->ProjektbetreuerModel->getAllBetreuerOfProjektarbeit($projektarbeit_id);
+			
+			forEach($betreuerResult->retval as $betreuerRow) {
+				if (!isset($betreuerMap[$betreuerRow->person_id])) {
+					$betreuerMap[$betreuerRow->person_id] = [];
+				}
+				
+				// Add the current betreuerRow to the betreuerMap as an array associated with its projektarbeit_id.
+				$betreuerMap[$betreuerRow->person_id][] = [$projektarbeit_id, $betreuerRow];
+			}
+		}
+
+		$count = 0;
+		// now iterate over the betreuerMap and build 1 email about all projektarbeiten and their new/changed termine
+		// $tupel = [$projektarbeit_id, $betreuerRow], each betreuer has 0..n [projektarbeit_id, changedAbgaben] tupel
+		forEach($betreuerMap as $betreuer_person_id => $tupelArr) {
+
+			// start the container
+			$abgabenString = '<div style="font-family: Arial, sans-serif; color: #333;">';
+
+			$result = $this->_ci->ProjektarbeitModel->getProjektbetreuerAnrede($betreuer_person_id);
+			$data = getData($result)[0];
+
+			$anrede = $data->anrede;
+			$anredeFillString = $data->anrede == "Herr" ? "r" : "";
+			$fullFormattedNameString = $data->first;
+
+			forEach($tupelArr as $tupel) {
+				$projektarbeit_id = $tupel[0];
+				$betreuerRow = $tupel[1];
+
+				$changedAbgaben = $projektarbeiten[$projektarbeit_id];
+
+				$relevantAbgaben = array_values(array_filter($changedAbgaben, function($abgabetermin) use ($betreuerRow) {
+					if($abgabetermin->updatevon == null && $abgabetermin->insertvon != $betreuerRow->uid) {
+						return $abgabetermin;
+					} else if($abgabetermin->updatevon != null && $abgabetermin->updatevon != $betreuerRow->uid) {
+						return $abgabetermin;
+					}
+				}));
+
+				if(count($relevantAbgaben) == 0) {
+					continue;
+				}
+
+				// format the Student Name
+				$s = $relevantAbgaben[0];
+				$nameParts = [];
+				if (!empty($s->titelpre)) $nameParts[] = $s->titelpre;
+				$nameParts[] = $s->vorname;
+				$nameParts[] = $s->nachname;
+				if (!empty($s->titelpost)) $nameParts[] = $s->titelpost;
+				$studentFullName = implode(' ', $nameParts);
+
+				$projektarbeit_titel = $s->titel ?? 'Kein Titel vergeben';
+
+				// project header section
+				$abgabenString .= "
+					<div style='margin-top: 25px; padding: 12px; background-color: #f8f9fa; border-left: 4px solid #007bff; border-bottom: 1px solid #eee;'>
+						<strong style='font-size: 16px; color: #0056b3;'>Projekt: {$projektarbeit_titel}</strong><br/>
+						<div style='margin-top: 5px; font-size: 14px;'>
+							<strong>Studierende/r:</strong> {$studentFullName}
+						</div>
+						<span style='color: #666; font-size: 12px;'>
+							ID: {$projektarbeit_id} | Rolle: {$betreuerRow->betreuerart_kurzbz} | 
+							Stg: {$s->stgtyp}{$s->stgkz} ({$s->studiensemester_kurzbz})
+						</span>
+					</div>";
+
+				// start table
+				$abgabenString .= '
+					<table style="width: 100%; border-collapse: collapse; margin-bottom: 25px;">
+						<thead>
+							<tr style="background-color: #eee; text-align: left;">
+								<th style="padding: 10px; border: 1px solid #ddd; font-size: 13px; width: 20%;">Zieldatum</th>
+								<th style="padding: 10px; border: 1px solid #ddd; font-size: 13px;">Bezeichnung</th>
+							</tr>
+						</thead>
+						<tbody>';
+
+				foreach ($relevantAbgaben as $abgabe) {
+					$dateEmailFormatted = (new DateTime($abgabe->datum))->format('d.m.Y');
+					$abgabedatumFormatted = (new DateTime($abgabe->abgabedatum))->format('d.m.Y');
+					$kurzbzLine = !empty($abgabe->kurzbz) ? "<br/><small style='color: #777; font-style: italic;'>{$abgabe->kurzbz}</small>" : "";
+
+					$abgabenString .= "
+						<tr>
+							<td style='padding: 10px; border: 1px solid #ddd; font-size: 13px; vertical-align: top;'>{$dateEmailFormatted}</td>
+							<td style='padding: 10px; border: 1px solid #ddd; font-size: 13px;'>
+								<strong>{$abgabe->bezeichnung}</strong>{$kurzbzLine}
+							</td>
+						</tr>";
+				}
+
+				$abgabenString .= '</tbody></table>';
+			}
+			
+			// close container
+			$abgabenString .= '</div>'; 
+
+			// done with building the change list, now send it
+			$betreuerRow = $tupelArr[0][1];
+			
+			$path = $this->_ci->config->item('URL_MITARBEITER');
+			$url = CIS_ROOT.$path;
+
+			$body_fields = array(
+				'anrede' => $anrede,
+				'anredeFillString' => $anredeFillString,
+				'fullFormattedNameString' => $fullFormattedNameString,
+				'abgabenString' => $abgabenString,
+				'linkAbgabetool' => $url
+			);
+			
+			$email = $betreuerRow->uid ? $betreuerRow->uid."@".DOMAIN : $betreuerRow->private_email;
+			
+			// send email with bundled info
+			sendSanchoMail(
+				'PAAChangesBetSM',
+				$body_fields,
+				$email,
+				$this->p->t('abgabetool', 'changedAbgabeterminev2')
+			);
+			
+			$count++;
+		}
+
+		$this->_ci->logInfo($count . " Emails erfolgreich versandt");
+		$this->_ci->logInfo('End job FHC-Core->notifyBetreuerAboutChangedAbgaben');
+	}
+
+	public function notifyBetreuerMail() {
+		// send all new projektarbeit abgabe UPLOADS since the last job run to the related betreuer
+		// this job gathers all new or changed file uploads via field 'abgabedatum', enduploads still
+		// send an email directly after happening since they are kind of important
+
+		$this->_ci->logInfo('Start job FHC-Core->notifyBetreuerMail');
+
+		// dont filter for relevant types since this mail should gather all UPLOAD info
+		
+		$interval = $this->_ci->config->item('PAABGABE_EMAIL_JOB_INTERVAL');
+
+		$result = $this->_ci->PaabgabeModel->findAbgabenNewOrUpdatedSinceByAbgabedatum($interval);
+		$retval = getData($result);
+
+		// retval are paabgaben joined with projektarbeit and betreuer
+		if(count($retval) == 0) {
+			$this->logInfo("Keine Emails über neue Paabgaben an Betreuer versandt");
+			return;
+		}
+
+		// group contents per betreuer person_id
+		$betreuer_uids = [];
+		forEach($retval as $paabgabe) {
+			if(!isset($betreuer_uids[$paabgabe->person_id])) {
+				$betreuer_uids[$paabgabe->person_id] = [];
+			}
+
+			$betreuer_uids[$paabgabe->person_id][] = $paabgabe;
+		}
+
+		$count = 0;
+		forEach ($betreuer_uids as $person_id => $abgaben) {
+			// $person_id is from betreuer
+
+			$result = $this->_ci->ProjektarbeitModel->getProjektbetreuerAnrede($person_id);
+			$data = getData($result)[0];
+
+			$anrede = $data->anrede;
+			$anredeFillString = $data->anrede == "Herr" ? "r" : "";
+			$fullFormattedNameString = $data->first;
+
+			// sorting $abgaben array by datum
+			usort($abgaben, function ($a, $b) {
+				return strtotime($a->datum) <=> strtotime($b->datum);
+			});
+
+			$projektarbeit_titel = $abgaben[0]->titel;
+
+			// initialize the table and headers
+			$abgabenString = '
+			<table style="width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; color: #333; margin-top: 15px; margin-bottom: 15px;">
+				<thead>
+					<tr style="background-color: #f2f2f2; text-align: left;">
+						<th style="padding: 10px; border: 1px solid #ddd; font-size: 13px; width: 15%;">Zieldatum</th>
+						<th style="padding: 10px; border: 1px solid #ddd; font-size: 13px; width: 25%;">Studierende/r</th>
+						<th style="padding: 10px; border: 1px solid #ddd; font-size: 13px;">Bezeichnung</th>
+						<th style="padding: 10px; border: 1px solid #ddd; font-size: 13px; width: 15%;">Abgabedatum</th>
+					</tr>
+				</thead>
+				<tbody>';
+			
+			foreach ($abgaben as $abgabe) {
+				// format the student name
+				$nameParts = [];
+				if (!empty($abgabe->titelpre)) $nameParts[] = $abgabe->titelpre;
+				$nameParts[] = $abgabe->vorname;
+				$nameParts[] = $abgabe->nachname;
+				if (!empty($abgabe->titelpost)) $nameParts[] = $abgabe->titelpost;
+				$studentFullName = implode(' ', $nameParts);
+
+				// format dates inline
+				$dateEmailFormatted = (new DateTime($abgabe->datum))->format('d.m.Y');
+				$abgabedatumFormatted = (new DateTime($abgabe->abgabedatum))->format('d.m.Y');
+
+				// handle the optional Kurzbezeichnung
+				$kurzbzLine = !empty($abgabe->kurzbz) ? "<br/><small style='color: #666; font-style: italic;'>{$abgabe->kurzbz}</small>" : "";
+
+				$abgabenString .= "
+				<tr>
+					<td style='padding: 10px; border: 1px solid #ddd; font-size: 13px; vertical-align: top;'>{$dateEmailFormatted}</td>
+					<td style='padding: 10px; border: 1px solid #ddd; font-size: 13px; vertical-align: top;'>{$studentFullName}</td>
+					<td style='padding: 10px; border: 1px solid #ddd; font-size: 13px;'>
+						<strong>{$abgabe->bezeichnung}</strong>{$kurzbzLine}
+					</td>
+					<td style='padding: 10px; border: 1px solid #ddd; font-size: 13px; vertical-align: top;'>{$abgabedatumFormatted}</td>
+				</tr>";
+			}
+
+			$abgabenString .= '</tbody></table>';
+
+			$path = $this->_ci->config->item('URL_MITARBEITER');
+			$url = CIS_ROOT.$path;
+
+			$body_fields = array(
+				'anrede' => $anrede,
+				'anredeFillString' => $anredeFillString,
+				'fullFormattedNameString' => $fullFormattedNameString,
+				'paTitel' => $projektarbeit_titel,
+				'abgabenString' => $abgabenString,
+				'linkAbgabetool' => $url
+			);
+
+			$result = $this->_ci->ProjektbetreuerModel->getBetreuerOfProjektarbeit($abgaben[0]->projektarbeit_id, $abgaben[0]->betreuerart_kurzbz);
+			$data = getData($result)[0];
+
+			$email = $data->uid ? $data->uid."@".DOMAIN : $data->private_email;
+
+			// send email with bundled info
+			sendSanchoMail(
+				'PaabgabeUpdatesBetSM',
+				$body_fields,
+				$email,
+				$this->p->t('abgabetool', 'changedAbgabeterminev2')
+			);
+
+			$count++;
+		}
+
+		$this->_ci->logInfo($count . " Emails erfolgreich versandt");
+		$this->_ci->logInfo('End job FHC-Core->notifyBetreuerMail');
+	}
+
+	public function notifyStudentMail()
+	{
+		// send all new projektarbeit abgabe since the last job run to the related student
+
+		$this->_ci->logInfo('Start job FHC-Core->notifyStudentMail');
+
+		$interval = $this->_ci->config->item('PAABGABE_EMAIL_JOB_INTERVAL');
+
+		$relevantTypes = $this->_ci->config->item('RELEVANT_PAABGABETYPEN_SAMMELMAIL_STUDENT');
+
+		$result = $this->_ci->PaabgabeModel->findAbgabenNewOrUpdatedSince($interval, $relevantTypes);
+		$retval = getData($result);
+
+		if(count($retval) == 0) {
+			$this->_ci->logInfo("Keine Emails an Studenten versandt");
+			return;
+		}
+		
+		// group results per projektarbeit/student_uid
+		$student_uids = [];
+		forEach($retval as $paabgabe) {
+			if(!isset($student_uids[$paabgabe->student_uid])) {
+				$student_uids[$paabgabe->student_uid] = [];
+			}
+
+			$student_uids[$paabgabe->student_uid][] = $paabgabe;
+		}
+
+		$count = 0;
+		foreach ($student_uids as $uid => $abgaben) {
+			// $uid is the student's UID
+			$result = $this->_ci->StudentModel->getEmailAnredeForStudentUID($uid);
+			$data = getData($result)[0];
+
+			// $abgabe is the array of paabgabe objects
+			$anredeFillString = $data->anrede=="Herr"?"r":"";
+			$fullFormattedNameString = trim($data->titelpre." ".$data->vorname." ".$data->vornamen." ".$data->nachname." ".$data->titelpost);
+
+			// https://www.php.net/manual/en/migration70.new-features.php#migration70.new-features.spaceship-op
+			// php has spaceships 🚀🚀🚀🚀🚀
+			usort($abgaben, function($a, $b) {
+				return strtotime($a->datum) <=> strtotime($b->datum);
+			});
+
+			$projektarbeit_titel = $abgaben[0]->titel;
+			
+			// initialize the table and headers
+			$abgabenString = '
+			<table style="width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; color: #333; margin-top: 15px; margin-bottom: 15px;">
+				<thead>
+					<tr style="background-color: #f2f2f2; text-align: left;">
+						<th style="padding: 10px; border: 1px solid #ddd; font-size: 13px; width: 25%;">Zieldatum</th>
+						<th style="padding: 10px; border: 1px solid #ddd; font-size: 13px;">Bezeichnung / Hinweis</th>
+					</tr>
+				</thead>
+				<tbody>';
+
+			foreach ($abgaben as $abgabe) {
+				$dateEmailFormatted = (new DateTime($abgabe->datum))->format('d.m.Y');
+
+				// handle the optional Kurzbezeichnung
+				$kurzbzLine = !empty($abgabe->kurzbz) ? "<br/><small style='color: #666; font-style: italic;'>{$abgabe->kurzbz}</small>" : "";
+
+				$abgabenString .= "
+				<tr>
+					<td style='padding: 10px; border: 1px solid #ddd; font-size: 13px; vertical-align: top;'>
+						{$dateEmailFormatted}
+					</td>
+					<td style='padding: 10px; border: 1px solid #ddd; font-size: 13px;'>
+						<strong>{$abgabe->bezeichnung}</strong>{$kurzbzLine}
+					</td>
+				</tr>";
+			}
+
+			$abgabenString .= '</tbody></table>';
+			
+			$route =  $this->_ci->config->item('URL_STUDENTS');
+			$url = CIS_ROOT.$route;
+
+			$body_fields = array(
+				'anrede' => $data->anrede,
+				'anredeFillString' => $anredeFillString,
+				'fullFormattedNameString' => $fullFormattedNameString,
+				'paTitel' => $projektarbeit_titel,
+				'abgabenString' => $abgabenString,
+				'linkAbgabetool' => $url
+			);
+
+			// send email with bundled info
+			sendSanchoMail(
+				'PaabgabeUpdatesSammelmail',
+				$body_fields,
+				$uid.'@'.DOMAIN,
+				$this->p->t('abgabetool', 'changedAbgabeterminev2')
+			);
+
+			$count++;
+			
+		}
+
+		$this->_ci->logInfo($count . " Emails erfolgreich versandt");
+		$this->_ci->logInfo('End job FHC-Core->notifyStudentMail');
+	}
+}
@@ -200,13 +200,14 @@ class AntragJob extends JOB_Controller
 	}

 	/**
-	 * Send reminder to Assistant for Wiedereinstieg Unterbrecher
+	 * Send reminder to Assistant and to Student for Wiedereinstieg Unterbrecher
 	 *
 	 */
 	public function sendReminderWiedereinstieg()
 	{
 		$now = new DateTime();
 		$modifier = $this->config->item('unterbrechung_job_remind_wiedereinstieg_date_modifier');
+
 		if (!$modifier)
 			return $this->logError('Konnte Job nicht starten: Config "unterbrechung_job_remind_wiedereinstieg_date_modifiers" nicht gesetzt');

@@ -230,6 +231,7 @@ class AntragJob extends JOB_Controller

 		$antraege = getData($result) ?: [];
 		$count = 0;
+		$countReminderStudent = 0;
 		foreach ($antraege as $antrag)
 		{
 			$res = $this->StudierendenantragModel->getStgAndSem($antrag->studierendenantrag_id);
@@ -257,10 +259,92 @@ class AntragJob extends JOB_Controller
 				$data['UID'] = $student->student_uid;
 			}

-			// NOTE(chris): Sancho mail
-			if(sendSanchoMail('Sancho_Mail_Antrag_U_Reminder', $data, $antrag->email, 'Reminder: Unterbrechung Wiedereinstieg'))
+			//Data für Email Student
+			$result = $this->PrestudentModel->load($antrag->prestudent_id);
+			$dataPrestudent = current(getData($result));
+			$person_id = $dataPrestudent->person_id;
+
+			$this->KontaktModel->addSelect('kontakt');
+
+			$result = $this->KontaktModel->loadWhere([
+				'person_id'=> $person_id,
+				'zustellung' => true,
+				'kontakttyp' => 'email'
+			]);
+
+			$email_student_privat = null;
+			$dataKontakt = getData($result);
+			if ($dataKontakt) {
+				$stud_private_zustell_emails = array_map(function($kontakt) {
+					return $kontakt->kontakt;
+				}, $dataKontakt);
+				$email_student_privat = implode(', ', $stud_private_zustell_emails);
+			}
+
+			$email_student_FH = $this->StudentModel->getEmailFH($this->StudentModel->getUID($antrag->prestudent_id));
+
+			//studiensemester
+			$result = $this->StudiensemesterModel->getByDate($datum->format('Y-m-d'));
+			if (hasData($result)) {
+				$dataSem = current(getData($result));
+			}
+
+			$studiensemester = $dataSem->studiensemester_kurzbz;
+			$studsemShort = substr($studiensemester, 0, 2);
+
+			if($studsemShort == "SS")
+			{
+				$data['studSemShort_Eng'] = "summer semester";
+				$data['meldenBis'] = "15.1.";
+				$data['meldenBis_Eng'] = "January 15";
+			}
+			elseif ($studsemShort == "WS") {
+				$data['studSemShort_Eng'] = "winter semester";
+				$data['meldenBis'] = "1.8.";
+				$data['meldenBis_Eng'] = "August 1";
+			}
+			else
+			{
+				$studsemShort = "SS/WS";
+				$data['studSemShort_Eng'] = "summer/winter semester";
+				$data['meldenBis'] = "15.1. (bei Einstieg ins SS) / 1.8. (bei Einstieg ins WS)";
+				$data['meldenBis_Eng'] = "January 15 (for sommer semester enrollment) / August 1 (for winter semester enrollment)";
+			}
+
+			$data['studSemShort'] = $studsemShort;
+
+			// NOTE(chris): Sancho mail Assistant
+			$sancho_assistant_sent = sendSanchoMail('Sancho_Mail_Antrag_U_Reminder', $data, $antrag->email, 'Reminder: Unterbrechung Wiedereinstieg');
+			if($sancho_assistant_sent)
 			{
 				$count++;
+			}
+			else
+			{
+				$this->logError('Error: failed to send Assistant Reminder studierendenantrag_id: ' . $antrag->studierendenantrag_id);
+			}
+			//Mail to Student
+			$sancho_student_sent = sendSanchoMail(
+				'Sancho_Mail_Antrag_U_Remind_Stud',
+				$data,
+				$email_student_FH,
+				'Reminder: Unterbrechung Wiedereinstieg',
+				'',
+				'',
+				'',
+				$email_student_privat);
+
+			if($sancho_student_sent)
+			{
+				$countReminderStudent++;
+			}
+			else
+			{
+				$this->logError('Error: failed to send Student Reminder studierendenantrag_id: ' . $antrag->studierendenantrag_id);
+			}
+
+			if($sancho_assistant_sent && $sancho_student_sent)
+			{
 				$this->StudierendenantragstatusModel->insert([
 					'studierendenantrag_id' => $antrag->studierendenantrag_id,
 					'studierendenantrag_statustyp_kurzbz' => Studierendenantragstatus_model::STATUS_REMINDERSENT,
@@ -268,7 +352,7 @@ class AntragJob extends JOB_Controller
 				]);
 			}
 		}
-		$this->logInfo($count . ' Reminder gesendet - Ende Job sendReminderWiedereinstieg');
+		$this->logInfo($count . ' Reminder an Assistenz und ' . $countReminderStudent . ' Reminder an Student gesendet  - Ende Job sendReminderWiedereinstieg');
 	}

 	/**
@@ -0,0 +1,86 @@
+<?php
+
+if (!defined('BASEPATH')) exit('No direct script access allowed');
+
+class MeldezettelJob extends JOB_Controller
+{
+	const INSERT_VON = 'meldezetteljob';
+	const DOKUMENT_KURZBZ = 'Meldezet';
+
+	private $_ci; // Code igniter instance
+
+	public function __construct()
+	{
+		parent::__construct();
+
+		$this->_ci =& get_instance();
+
+		$this->_ci->load->model('crm/Dokumentprestudent_model', 'DokumentprestudentModel');
+	}
+
+	/**
+	 * Sets Meldezettel to "accepted" for all students with Meldeadresse.
+	 */
+	public function acceptMeldezettel()
+	{
+		$this->logInfo('Start Meldezettel Job');
+
+		$params = array(self::DOKUMENT_KURZBZ);
+
+		$qry = "
+			-- get all prestudents with meldeadresse, but no accepted Meldezettel
+			SELECT
+				DISTINCT prestudent_id
+			FROM
+				public.tbl_adresse
+				JOIN public.tbl_person USING (person_id)
+				JOIN public.tbl_prestudent ps USING (person_id)
+			WHERE
+				typ = 'm'
+				AND NOT EXISTS (
+					SELECT
+						1
+					FROM
+						public.tbl_dokumentprestudent
+					WHERE
+						prestudent_id = ps.prestudent_id
+						AND dokument_kurzbz = ?
+				)";
+
+		// get all prestudents with Meldeadresse and no accpeted Meldezettel
+		$result = $this->_ci->DokumentprestudentModel->execReadOnlyQuery($qry, $params);
+
+		if (isError($result))
+		{
+			$this->logError(getError($result));
+		}
+
+		$count = 0;
+
+		if (hasData($result))
+		{
+			$prestudents = getData($result);
+
+			foreach ($prestudents as $prestudent)
+			{
+				// set Meldezettel to accepted
+				$result = $this->_ci->DokumentprestudentModel->insert(
+					array(
+						'prestudent_id' => $prestudent->prestudent_id,
+						'dokument_kurzbz' => self::DOKUMENT_KURZBZ,
+						'datum' => date('Y-m-d'),
+						'insertamum' => strftime('%Y-%m-%d %H:%M'),
+						'insertvon' => self::INSERT_VON
+					)
+				);
+
+				if (isError($result))
+					$this->logError(getError($result));
+				else
+					$count++;
+			}
+		}
+
+		$this->logInfo('End Meldezettel Job', array('Number of changes ' => $count));
+	}
+}
@@ -109,7 +109,7 @@ class Lehrauftrag extends Auth_Controller
        $studiensemester_kurzbz = $this->input->get('studiensemester'); // if provided by selected studiensemester
        if (is_null($studiensemester_kurzbz)) // else set next studiensemester as default value
        {
-            $studiensemester = $this->StudiensemesterModel->getAktOrNextSemester();
+            $studiensemester = $this->StudiensemesterModel->getAktOrNextSemester(62);
            if (hasData($studiensemester))
            {
                $studiensemester_kurzbz = $studiensemester->retval[0]->studiensemester_kurzbz;
@@ -75,7 +75,7 @@ class LehrauftragAkzeptieren extends Auth_Controller
 		$studiensemester_kurzbz = $this->input->get('studiensemester'); // if provided by selected studiensemester
 		if (is_null($studiensemester_kurzbz)) // else set next studiensemester as default value
 		{
-			$studiensemester = $this->StudiensemesterModel->getAktOrNextSemester();
+			$studiensemester = $this->StudiensemesterModel->getAktOrNextSemester(62);
 			if (hasData($studiensemester))
 			{
 				$studiensemester_kurzbz = $studiensemester->retval[0]->studiensemester_kurzbz;
@@ -91,7 +91,7 @@ class LehrauftragErteilen extends Auth_Controller
        $studiensemester_kurzbz = $this->input->get('studiensemester'); // if provided by selected studiensemester
        if (is_null($studiensemester_kurzbz)) // else set next studiensemester as default value
        {
-            $studiensemester = $this->StudiensemesterModel->getAktOrNextSemester();
+            $studiensemester = $this->StudiensemesterModel->getAktOrNextSemester(62);
            if (hasData($studiensemester))
            {
                $studiensemester_kurzbz = $studiensemester->retval[0]->studiensemester_kurzbz;
@@ -22,6 +22,7 @@ class InfoCenter extends Auth_Controller
 	const REIHUNGSTESTABSOLVIERT_PAGE = 'reihungstestAbsolviert';
 	const ABGEWIESEN_PAGE = 'abgewiesen';
 	const AUFGENOMMEN_PAGE = 'aufgenommen';
+	const ONBOARDING_PAGE = 'onboarding';
 	const SHOW_DETAILS_PAGE = 'showDetails';
 	const SHOW_ZGV_DETAILS_PAGE = 'showZGVDetails';
 	const ZGV_UBERPRUEFUNG_PAGE = 'ZGVUeberpruefung';
@@ -116,6 +117,7 @@ class InfoCenter extends Auth_Controller
 				'index' => 'infocenter:r',
 				'freigegeben' => 'infocenter:r',
 				'abgewiesen' => 'infocenter:r',
+				'onboarding' => 'infocenter:r',
 				'aufgenommen' => 'infocenter:r',
 				'reihungstestAbsolviert' => 'infocenter:r',
 				'showDetails' => 'infocenter:r',
@@ -230,6 +232,13 @@ class InfoCenter extends Auth_Controller

 		$this->load->view('system/infocenter/infocenterAbgewiesen.php');
 	}
+
+	public function onboarding()
+	{
+		$this->_setNavigationMenu(self::ONBOARDING_PAGE); // define the navigation menu for this page
+
+		$this->load->view('system/infocenter/onboarding.php');
+	}
 	
 	/**
 	 * Aufgenommene page of the InfoCenter tool
@@ -362,6 +371,8 @@ class InfoCenter extends Auth_Controller
 		$data[self::ORIGIN_PAGE] = $origin_page;
 		$data[self::PREV_FILTER_ID] = $this->input->get(self::PREV_FILTER_ID);

+		$data['studiensemester'] = $this->variablelib->getVar('infocenter_studiensemester');
+
 		$this->load->view('system/infocenter/infocenterDetails.php', $data);
 	}

@@ -1551,6 +1562,7 @@ class InfoCenter extends Auth_Controller
 		$reihungstestAbsolviertLink = site_url(self::INFOCENTER_URI.'/'.self::REIHUNGSTESTABSOLVIERT_PAGE);
 		$abgewiesenLink = site_url(self::INFOCENTER_URI.'/'.self::ABGEWIESEN_PAGE);
 		$aufgenommenLink = site_url(self::INFOCENTER_URI.'/'.self::AUFGENOMMEN_PAGE);
+		$onboardingLink = site_url(self::INFOCENTER_URI.'/'.self::ONBOARDING_PAGE);

 		$currentFilterId = $this->input->get(self::FILTER_ID);
 		if (isset($currentFilterId))
@@ -1559,6 +1571,7 @@ class InfoCenter extends Auth_Controller
 			$reihungstestAbsolviertLink .= '?'.self::PREV_FILTER_ID.'='.$currentFilterId;
 			$abgewiesenLink .= '?'.self::PREV_FILTER_ID.'='.$currentFilterId;
 			$aufgenommenLink .= '?'.self::PREV_FILTER_ID.'='.$currentFilterId;
+			$onboardingLink .= '?'.self::PREV_FILTER_ID.'='.$currentFilterId;
 		}

 		$this->navigationlib->setSessionMenu(
@@ -1622,6 +1635,18 @@ class InfoCenter extends Auth_Controller
 					'', 				// target
 					40   				// sort
 				),
+				'ohnePrestudent' => $this->navigationlib->oneLevel(
+					'Electronic Onboarding',		// description
+					$onboardingLink,	// link
+					null,				// children
+					'users',		// icon
+					null,				// subscriptDescription
+					false,				// expand
+					null,				// subscriptLinkClass
+					null, 				// subscriptLinkValue
+					'', 				// target
+					50   				// sort
+				),
 			)
 		);
 	}
@@ -1648,6 +1673,8 @@ class InfoCenter extends Auth_Controller
 			$link = site_url(self::ZGV_UEBERPRUEFUNG_URI);
 		if ($origin_page === self::ABGEWIESEN_PAGE)
 			$link = site_url(self::INFOCENTER_URI.'/'.self::ABGEWIESEN_PAGE);
+		if ($origin_page === self::ONBOARDING_PAGE)
+			$link = site_url(self::INFOCENTER_URI.'/'.self::ONBOARDING_PAGE);

 		if ($origin_page === self::AUFGENOMMEN_PAGE)
 			$link = site_url(self::INFOCENTER_URI.'/'.self::AUFGENOMMEN_PAGE);
@@ -1689,6 +1716,7 @@ class InfoCenter extends Auth_Controller
 		$freigegebenLink = site_url(self::INFOCENTER_URI.'/'.self::FREIGEGEBEN_PAGE);
 		$absolviertLink = site_url(self::INFOCENTER_URI.'/'.self::REIHUNGSTESTABSOLVIERT_PAGE);
 		$abgewiesenLink = site_url(self::INFOCENTER_URI.'/'.self::ABGEWIESEN_PAGE);
+		$onboardingLink = site_url(self::INFOCENTER_URI.'/'.self::ONBOARDING_PAGE);
 		$prevFilterId = $this->input->get(self::PREV_FILTER_ID);
 		if (isset($prevFilterId))
 		{
@@ -1765,6 +1793,24 @@ class InfoCenter extends Auth_Controller
 				)
 			);
 		}
+		if($page == self::ONBOARDING_PAGE)
+		{
+			$this->navigationlib->setSessionElementMenu(
+				'onboarding',
+				$this->navigationlib->oneLevel(
+					'Electronic Onboarding',		// description
+					$onboardingLink,	// link
+					null,				// children
+					'users',			// icon
+					null,				// subscriptDescription
+					false,				// expand
+					null,				// subscriptLinkClass
+					null, 				// subscriptLinkValue
+					'', 				// target
+					50   				// sort
+				)
+			);
+		}
 	}

 	/**
@@ -70,20 +70,22 @@ abstract class Auth_Controller extends FHC_Controller
 	/**
 	 * Checks for Permissions depending if the given person is a
 	 * Mitarbeiter and/or Student
+	 * If neither Student nor Mitarbeiter, default permissions are checked
 	 * and exits/outputs an error if they are not met.
 	 *
 	 * @param integer 				$person_id
 	 * @param array 				$permMa		Perms if the person is a Mitarbeiter
 	 * @param array 				$permStud	Perms if the person is a Student
+	 * @param array 				$permDefault	Perms if the person is neither a Student nor a Mitarbeiter
 	 *
 	 * @return void
 	 */
-	protected function checkPermissionsForPerson($person_id, $permMa, $permStud)
+	protected function checkPermissionsForPerson($person_id, $permMa, $permStud, $permDefault = null)
 	{
-		$res = $this->hasPermissionsForPerson($person_id, $permMa, $permStud);
-		
+		$res = $this->hasPermissionsForPerson($person_id, $permMa, $permStud, $permDefault);
+
 		if ($res) {
-			$perm = array_keys(array_flip(array_merge($res|1 ? $permMa : [], $res|2 ? $permStud : [])));
+			$perm = array_keys(array_flip(array_merge($res&1 ? $permMa : [], $res&2 ? $permStud : [], $res&4 ? $permDefault : [])));
 			$this->_outputAuthError([$this->router->method => $perm]);
 		}
 	}
@@ -108,16 +110,19 @@ abstract class Auth_Controller extends FHC_Controller
 	 * Checks for Permissions depending if the given person is a
 	 * Mitarbeiter and/or Student
 	 * and returns the result.
-	 *
+	 * If neither Student nor Mitarbeiter, default permissions are checked
+	 * 
 	 * @param integer 				$person_id
 	 * @param array 				$permMa		Perms if the person is a Mitarbeiter
 	 * @param array 				$permStud	Perms if the person is a Student
-	 *
+	 * @param array 				$permDefault	Perms if the person is neither a Student nor a Mitarbeiter
 	 * @return integer				0 if permission is granted
 	 */
-	protected function hasPermissionsForPerson($person_id, $permMa, $permStud)
+	protected function hasPermissionsForPerson($person_id, $permMa, $permStud, $permDefault)
 	{
-		$res = 3;
+		$res = 8;
+		$isMitarbeiter = false;
+		$isStudent = false;
 		$this->load->model('person/Person_model', 'PersonModel');
 		$this->PersonModel->addJoin('public.tbl_benutzer', 'person_id');
 		$this->PersonModel->addJoin('public.tbl_mitarbeiter', 'uid = mitarbeiter_uid');
@@ -125,7 +130,8 @@ abstract class Auth_Controller extends FHC_Controller
 		if (hasData($result)) {
 			if ($this->permissionlib->isEntitled(['a' => $permMa], 'a'))
 				return 0;
-			$res = 1;
+			$isMitarbeiter = true;
+			$res += 1;
 		}
 		$this->PersonModel->addJoin('public.tbl_prestudent', 'person_id');
 		$result = $this->PersonModel->load($person_id);
@@ -140,8 +146,15 @@ abstract class Auth_Controller extends FHC_Controller
 						return 0;
 				}
 			}
+			$isStudent = true;
 			$res += 2;
 		}
+		if (isset($permDefault) && !$isMitarbeiter && !$isStudent)
+		{
+			if ($this->permissionlib->isEntitled(['a' => $permDefault], 'a'))
+				return 0;
+			$res += 4;
+		}
 		return $res;
 	}

@@ -266,7 +266,7 @@ class FHCAPI_Controller extends Auth_Controller
 	}

 	// ---------------------------------------------------------------
-	// Security
+	// Security Begin
 	// ---------------------------------------------------------------

 	/**
@@ -287,4 +287,31 @@ class FHCAPI_Controller extends Auth_Controller
 			'required_permissions' => $this->_rpsToString($requiredPermissions, $this->router->method)
 		], self::ERROR_TYPE_AUTH);
 	}
+
+	// ---------------------------------------------------------------
+	// Security End
+	// ---------------------------------------------------------------
+
+	/**
+	 * Checks the client's total request size (Content-Length) against the minimum
+	 * effective PHP limit (min of upload_max_filesize, post_max_size, memory_limit).
+	 * This preempts failures that result in vague "missing parameters" errors on large files.
+	 *
+	 * @return void
+	 */
+	protected function checkUploadSize() {
+		// this number represents bytes
+		$content_length_bytes = (int)$this->input->server('CONTENT_LENGTH');
+		$content_length = $content_length_bytes / 1000000;
+		
+		//get max serverside size upload -> this comes in megabytes
+		$max_upload = (int)(ini_get('upload_max_filesize'));
+		$max_post = (int)(ini_get('post_max_size'));
+		$memory_limit = (int)(ini_get('memory_limit'));
+		$max_upload_mb = min($max_upload, $max_post, $memory_limit);    // smallest of 3 config values
+		
+		if($content_length >= $max_upload_mb) {
+			$this->terminateWithError($this->p->t('global', 'filesizeExceeded'), 'general');
+		}
+	}
 }
@@ -393,10 +393,10 @@ abstract class Notiz_Controller extends FHCAPI_Controller

 		foreach ($result as $doc) {
 			$res = $this->dmslib->removeAll($doc->dms_id);
-			if (isError($result))
+			if (isError($res))
 			{
 				$this->db->trans_rollback();
-				$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+				$this->terminateWithError(getError($res), self::ERROR_TYPE_GENERAL);
 			}
 		}

@@ -29,13 +29,36 @@ class Tag_Controller extends FHCAPI_Controller
 		$this->load->model('person/Notiz_model', 'NotizModel');
 		$this->load->model('system/Notiztyp_model', 'NotiztypModel');
 		$this->load->model('person/Notizzuordnung_model', 'NotizzuordnungModel');
+
+		$this->loadPhrases([
+			'ui'
+		]);
 	}

-	public function getTag()
+	public function getTag($readonly_tags = null)
 	{
 		$language = $this->_getLanguageIndex();
 		$id = $this->input->get('id');

+		if (is_array($readonly_tags) && !isEmptyArray($readonly_tags))
+		{
+			$readonly_tags = $this->_filterTag($readonly_tags, true);
+
+			foreach ($readonly_tags as $key => $tag)
+			{
+				$readonly_tags[$key] = $this->NotizModel->db->escape($tag);
+			}
+			$tags = '(' . implode(',', $readonly_tags) . ')';
+
+			$this->NotizModel->addSelect("
+						CASE 
+							WHEN tbl_notiz_typ.typ_kurzbz IN $tags 
+							THEN TRUE 
+							ELSE FALSE 
+						END as readonly
+					");
+		}
+
 		$this->NotizModel->addSelect(
 			"tbl_notiz.titel, 
 			tbl_notiz.text, 
@@ -54,7 +77,7 @@ class Tag_Controller extends FHCAPI_Controller
 		$this->NotizModel->addJoin('public.tbl_benutzer verfasserbenutzer', 'tbl_notiz.verfasser_uid = verfasserbenutzer.uid', 'LEFT');
 		$this->NotizModel->addJoin('public.tbl_person verfasserperson', 'verfasserbenutzer.person_id = verfasserperson.person_id', 'LEFT');

-		$this->NotizModel->addJoin('public.tbl_benutzer bearbeiterbenutzer', 'tbl_notiz.verfasser_uid = bearbeiterbenutzer.uid', 'LEFT');
+		$this->NotizModel->addJoin('public.tbl_benutzer bearbeiterbenutzer', 'tbl_notiz.bearbeiter_uid = bearbeiterbenutzer.uid', 'LEFT');
 		$this->NotizModel->addJoin('public.tbl_person bearbeiterperson', 'bearbeiterbenutzer.person_id = bearbeiterperson.person_id', 'LEFT');

 		$notiz = $this->NotizModel->loadWhere(array('notiz_id' => $id));
@@ -62,7 +85,7 @@ class Tag_Controller extends FHCAPI_Controller
 		$this->terminateWithSuccess(hasData($notiz) ? getData($notiz)[0] : array());
 	}

-	public function getTags()
+	public function getTags($tags = null)
 	{
 		$this->NotiztypModel->addSelect(
 			'typ_kurzbz as tag_typ_kurzbz,
@@ -73,19 +96,36 @@ class Tag_Controller extends FHCAPI_Controller
 			'
 		);
 		$this->NotiztypModel->addOrder('prioritaet');
+
+		if (is_array($tags) && !isEmptyArray($tags))
+		{
+			$tags = $this->_filterTag($tags, false);
+			$this->NotiztypModel->db->where_in('typ_kurzbz', $tags);
+		}
+
 		$notiztypen = $this->NotiztypModel->loadWhere(array('aktiv' => true));
 		$this->terminateWithSuccess(hasData($notiztypen) ? getData($notiztypen) : array());
 	}

-	public function addTag($withZuordnung = true)
+	public function addTag($withZuordnung = true, $updatable_tags = null)
 	{
 		$postData = $this->getPostJson();

 		$checkTyp = $this->NotiztypModel->loadWhere(array('typ_kurzbz' => $postData->tag_typ_kurzbz));

-		if (!hasData($checkTyp))
-			$this->terminateWithError('Error occurred', self::ERROR_TYPE_GENERAL);
+		if (isError($checkTyp))
+			$this->terminateWithError($this->p->t('ui', 'fehlerBeimLesen'));

+		if (!hasData($checkTyp))
+			$this->terminateWithError($this->p->t('ui', 'fehlerBeimLesen'));
+
+		if (is_array($updatable_tags) && !isEmptyArray($updatable_tags))
+		{
+			$tags = $this->_filterTag($updatable_tags, false);
+
+			if (!in_array($postData->tag_typ_kurzbz, $tags))
+				$this->terminateWithError($this->p->t('ui', 'keineBerechtigung'));
+		}

 		if ($withZuordnung)
 		{
@@ -125,48 +165,88 @@ class Tag_Controller extends FHCAPI_Controller
 		}
 	}

-	private function addNotiz($postData)
-	{
-		return $this->NotizModel->insert(array(
-			'titel' => 'TAG', //TODO klären
-			'text' => $postData->notiz,
-			'verfasser_uid' => $this->_uid,
-			'erledigt' => false,
-			'insertamum' => date('Y-m-d H:i:s'),
-			'insertvon' => $this->_uid,
-			'typ' => $postData->tag_typ_kurzbz
-		));
-
-	}
-	public function updateTag()
+	public function updateTag($updatable_tags = null)
 	{
 		$postData = $this->getPostJson();
+		$post_tag = $this->NotizModel->loadWhere(array('notiz_id' => $postData->id));
+
+		if (isError($post_tag))
+			$this->terminateWithError($this->p->t('ui', 'fehlerBeimLesen'));
+
+		if (!hasData($post_tag))
+			$this->terminateWithError($this->p->t('ui', 'fehlerBeimLesen'));
+
+		if (is_array($updatable_tags) && !isEmptyArray($updatable_tags))
+		{
+			$tags = $this->_filterTag($updatable_tags, false);
+
+			$post_tag_typ = getData($post_tag)[0]->typ;
+
+			if (!in_array($post_tag_typ, $tags))
+				$this->terminateWithError($this->p->t('ui', 'keineBerechtigung'));
+		}
+
 		$updateData = $this->NotizModel->update(array('notiz_id' => $postData->id),
 			array('text' => $postData->notiz,
 				'updateamum' => date('Y-m-d H:i:s'),
 				'updatevon' => $this->_uid,
 				'bearbeiter_uid' => $this->_uid,
-				)
+			)
 		);
 		$this->terminateWithSuccess($updateData);
 	}
-	public function doneTag()
+	public function doneTag($updatable_tags = null)
 	{
 		$postData = $this->getPostJson();
+		$post_tag = $this->NotizModel->loadWhere(array('notiz_id' => $postData->id));
+
+		if (isError($post_tag))
+			$this->terminateWithError($this->p->t('ui', 'fehlerBeimLesen'));
+
+		if (!hasData($post_tag))
+			$this->terminateWithError($this->p->t('ui', 'fehlerBeimLesen'));
+
+		if (is_array($updatable_tags) && !isEmptyArray($updatable_tags))
+		{
+			$tags = $this->_filterTag($updatable_tags, false);
+
+			$post_tag_typ = getData($post_tag)[0]->typ;
+
+			if (!in_array($post_tag_typ, $tags))
+				$this->terminateWithError($this->p->t('ui', 'keineBerechtigung'));
+		}
+
 		$updateData = $this->NotizModel->update(array('notiz_id' => $postData->id),
 			array('erledigt' => !$postData->done,
+				'text' => $postData->notiz,
 				'updateamum' => date('Y-m-d H:i:s'),
 				'updatevon' => $this->_uid,
 				'bearbeiter_uid' => $this->_uid,
 			)
 		);
-
 		$this->terminateWithSuccess($updateData);
 	}

-	public function deleteTag($withZuordnung = true)
+	public function deleteTag($withZuordnung = true, $updatable_tags = null)
 	{
 		$postData = $this->getPostJson();
+		$post_tag = $this->NotizModel->loadWhere(array('notiz_id' => $postData->id));
+
+		if (isError($post_tag))
+			$this->terminateWithError($this->p->t('ui', 'fehlerBeimLesen'));
+
+		if (!hasData($post_tag))
+			$this->terminateWithError($this->p->t('ui', 'fehlerBeimLesen'));
+
+		if (is_array($updatable_tags) && !isEmptyArray($updatable_tags))
+		{
+			$tags = $this->_filterTag($updatable_tags, false);
+
+			$post_tag_typ = getData($post_tag)[0]->typ;
+
+			if (!in_array($post_tag_typ, $tags))
+				$this->terminateWithError($this->p->t('ui', 'keineBerechtigung'));
+		}

 		$deleteNotiz = "";
 		if ($withZuordnung)
@@ -208,5 +288,27 @@ class Tag_Controller extends FHCAPI_Controller
 		return hasData($result) ? getData($result)[0]->index : 1;
 	}

+	private function _filterTag($tags, $readonly = true)
+	{
+		$filtered_tags = array_filter($tags, function ($tag) use ($readonly)
+		{
+			return isset($tag['readonly']) && $tag['readonly'] === $readonly;
+		});
+
+		return array_keys($filtered_tags);
+	}
+
+	private function addNotiz($postData)
+	{
+		return $this->NotizModel->insert(array(
+			'titel' => 'TAG', //TODO klären
+			'text' => $postData->notiz,
+			'verfasser_uid' => $this->_uid,
+			'erledigt' => false,
+			'insertamum' => date('Y-m-d H:i:s'),
+			'insertvon' => $this->_uid,
+			'typ' => $postData->tag_typ_kurzbz
+		));
+	}

 }
@@ -515,3 +515,73 @@ function has_permissions_for_stg($studiengang_kz, $permissions = '')

 	return false;
 }
+
+/**
+ * check if an entry exists in the database
+ */
+function is_in_db($key, $model = '')
+{
+	if (!$model)
+		return false;
+
+	$field = strstr($model, ":");
+	if ($field) {
+		$model = strstr($model, ":", true);
+		$field = substr($field, 1);
+	}
+
+	$CI =& get_instance();
+	$CI->load->model($model, $model);
+
+	if ($field) {
+		$result = $CI->$model->loadWhere([
+			$field => $key
+		]);
+	} else {
+		$result = $CI->$model->load($key);
+	}
+
+	return (isSuccess($result) && hasData($result));
+}
+
+/**
+ * is building an array for Dropdown Entry in Print Dropdown
+ * @param $id id for the Document to add to the Document Array
+ * @param $name title of the dropdownEntry
+ * @param $parameterUrl url of parameters xml, xsl, format etc as needed
+ * 	WITHOUT BASEURL eg. "xml=abschlusspruefung.rdf.php&xsl_stg_kz=$studiengang_kz&xsl=Bescheid&output=pdf"
+ * @param $uid default parameter, if null only parameterurl will be added
+ * 	additional needed parameter: put in the parameterUrl
+ * @param $alternativeBaseUrl: if baseUrl not pdfExport.php, put here alternative without ? char, eg. "zutrittskarte.php"
+ *
+ * @return Array
+ */
+function buildDropdownEntryPrintArray($id, $name, $parameterurl, $uid=null, $order=null, $alternativeBaseUrl=null)
+{
+	//DEFAULT BASEURL
+	$baseurl = "pdfExport.php?";
+
+	$uidString = $uid ? "&uid=" . $uid : "";
+
+
+
+	if($alternativeBaseUrl)
+	{
+		return [
+			"id"    => $id,
+			"type"  => "documenturl",
+			"name"  => $name,
+			"url"   => $alternativeBaseUrl . "?" . $parameterurl . $uidString,
+			"order" => $order
+		];
+	}
+	else
+		return [
+			"id"    => $id,
+			"type"  => "documenturl",
+			"name"  => $name,
+			"url"   => $baseurl . $parameterurl . "&uid=" . $uid,
+			"order" => $order
+		];
+
+}
@@ -185,7 +185,15 @@ function generateJSModulesInclude($JSModules)

 		for ($tmpJSsCounter = 0; $tmpJSsCounter < count($tmpJSs); $tmpJSsCounter++)
 		{
-			$toPrint = sprintf($jsInclude, base_url($tmpJSs[$tmpJSsCounter].$cachetoken)).PHP_EOL;
+			if($ci->config->item('use_fhcomplete_build_version_in_path'))
+			{
+				$relurl = preg_replace('#public/#', 'public/' . $ci->config->item('fhcomplete_build_version') . '/', $tmpJSs[$tmpJSsCounter]);
+				$toPrint = sprintf($jsInclude, base_url($relurl)).PHP_EOL;
+			}
+			else
+			{
+				$toPrint = sprintf($jsInclude, base_url($tmpJSs[$tmpJSsCounter].$cachetoken)).PHP_EOL;
+			}

 			if ($tmpJSsCounter > 0) $toPrint = "\t\t".$toPrint;

@@ -246,3 +254,18 @@ function generateSkipLink($skipID)
 	$toPrint.='" class="fhcSkipLink" aria-label="Skip to main content"></a>';
 	echo $toPrint;
 }
+
+function absoluteJsImportUrl($relurl)
+{
+	$ci =& get_instance();
+	$ci->load->config('javascript');
+	if($ci->config->item('use_fhcomplete_build_version_in_path'))
+	{
+		$url = base_url(preg_replace('#^public/#', 'public/' . $ci->config->item('fhcomplete_build_version') . '/', $relurl));
+	}
+	else
+	{
+		$url = base_url($relurl) . '?'. $ci->config->item('fhcomplete_build_version');
+	}
+	return $url;
+}
@@ -41,3 +41,4 @@ if (!defined('BASEPATH')) exit('No direct script access allowed');
 $lang['form_validation_has_write_permissions']	= 'You have no rights to edit {field} field.';
 $lang['form_validation_is_valid_date']	= 'The date format is invalid or out of range.';
 $lang['form_validation_has_permissions_for_stg']	= 'You have no rights for stg {field}.';
+$lang['form_validation_is_in_db']	= '{field} does not exist.';
@@ -670,7 +670,7 @@ class DmsLib
 			$fileObj = new stdClass();
 			$fileObj->filename = getData($result)[0]->filename;
 			$fileObj->file = DMS_PATH.getData($result)[0]->filename;
-			$fileObj->name = DMS_PATH.getData($result)[0]->name;   // original user filename
+			$fileObj->name = getData($result)[0]->name;   // original user filename
 			$fileObj->mimetype = getData($result)[0]->mimetype;

 			return success($fileObj);
@@ -1,7 +1,7 @@
 <?php

 /**
- * Copyright (C) 2022 fhcomplete.org
+ * Copyright (C) 2025 fhcomplete.org
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
@@ -177,7 +177,7 @@ class FilterCmptLib
 		$session = $this->getSession();

 		// If session is NOT empty -> a filter was already loaded
-		if ($session != null)
+		if (!isError($session) && $session != null)
 		{
 			// Retrieve the filterId stored in the session
 			$sessionFilterId = $this->_getSessionElement(FilterCmptLib::FILTER_ID);
@@ -219,9 +219,7 @@ class FilterCmptLib
 				}
 			}
 		}
-
-		// If the session is empty -> first time that this filter is loaded
-		if ($session == null)
+		else
 		{
 			// Load filter definition data from DB
 			$definition = $this->_loadDefinition(
@@ -602,7 +600,7 @@ class FilterCmptLib
 	{
 		$session = getSessionElement(self::SESSION_NAME, $this->_filterUniqueId);

-		if (isset($session[$name]))
+		if (!isError($session) && isset($session[$name]))
 		{
 			return $session[$name];
 		}
@@ -623,7 +621,7 @@ class FilterCmptLib

 		if (!$this->_ci->permissionlib->hasAtLeastOne($this->_requiredPermissions, self::PERMISSION_FILTER_METHOD, self::PERMISSION_TYPE))
 		{
-			$this->_setSession(error('The required permission is not help by the logged user'));
+			$this->_setSession(error('The required permission is not held by the logged user'));
 			return false;
 		}

@@ -904,7 +902,7 @@ class FilterCmptLib
 		$filterCmptsSession = getSession(self::SESSION_NAME);

 		// If something is present in session
-		if ($filterCmptsSession != null)
+		if (!isError($filterCmptsSession) && $filterCmptsSession != null)
 		{
 			// Loops in the session for all the filter components
 			foreach ($filterCmptsSession as $filterCmpt => $filterCmptData)
@@ -951,9 +949,11 @@ class FilterCmptLib
 	{
 		$session = getSessionElement(self::SESSION_NAME, $this->_filterUniqueId);

-		$session[$name] = $value;
-
-		setSessionElement(self::SESSION_NAME, $this->_filterUniqueId, $session); // stores the single value
+		if (!isError($session) && $session != null)
+		{
+			$session[$name] = $value;
+			setSessionElement(self::SESSION_NAME, $this->_filterUniqueId, $session); // stores the single value
+		}
 	}

 	/**
@@ -965,7 +965,7 @@ class FilterCmptLib
 		$filterCmptsSession = getSession(self::SESSION_NAME);

 		// If something is present in session
-		if ($filterCmptsSession != null)
+		if (!isError($filterCmptsSession) && $filterCmptsSession != null)
 		{
 			// Loops in the session for all the filter components
 			foreach ($filterCmptsSession as $filterCmpt => $filterCmptData)
@@ -1174,3 +1174,4 @@ class FilterCmptLib
 		return $filterName;
 	}
 }
+
@@ -0,0 +1,350 @@
+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+class LektorLib
+{
+	private $_ci; // Code igniter instance
+
+	public function __construct()
+	{
+		$this->_ci =& get_instance();
+		$this->_ci->load->model('education/lehreinheit_model', 'LehreinheitModel');
+		$this->_ci->load->model('education/Lehreinheitmitarbeiter_model', 'LehreinheitmitarbeiterModel');
+		$this->_ci->load->model('organisation/Studiensemester_model','StudiensemesterModel');
+		$this->_ci->load->model('ressource/Stundensatz_model', 'StundensatzModel');
+		$this->_ci->load->model('vertragsbestandteil/Dienstverhaeltnis_model','DienstverhaeltnisModel');
+		$this->_ci->load->model('organisation/Organisationseinheit_model', 'OrganisationseinheitModel');
+		$this->_ci->load->model('ressource/mitarbeiter_model', 'MitarbeiterModel');
+		$this->_ci->load->model('person/Benutzer_model', 'BenutzerModel');
+		$this->_ci->load->library('PhrasesLib', array('lehre'));
+	}
+
+	public function addLektorToLehreinheit($lehreinheit_id, $mitarbeiter_uid)
+	{
+		$this->_ci->LehreinheitModel->addSelect('tbl_lehreinheit.*, tbl_lehrveranstaltung.studiengang_kz, semesterstunden');
+		$this->_ci->LehreinheitModel->addJoin('lehre.tbl_lehrveranstaltung', 'lehrveranstaltung_id');
+		$lehreinheit_result = $this->_ci->LehreinheitModel->loadWhere(array('lehreinheit_id' => $lehreinheit_id));
+
+		if (isError($lehreinheit_result)) return $lehreinheit_result;
+
+		if (!hasData($lehreinheit_result)) return error("Lehreinheit not found");
+
+		$lehreinheit = getData($lehreinheit_result)[0];
+
+		$already_assigned = $this->_ci->LehreinheitmitarbeiterModel->loadWhere(array('lehreinheit_id' => $lehreinheit->lehreinheit_id, 'mitarbeiter_uid' => $mitarbeiter_uid));
+
+		if (isError($already_assigned)) return $already_assigned;
+
+		if (hasData($already_assigned)) return error($this->_ci->phraseslib->t("lehre", "bereitzugeteilt"));
+
+		$studiensemester_result = $this->_ci->StudiensemesterModel->loadWhere(array('studiensemester_kurzbz' => $lehreinheit->studiensemester_kurzbz));
+		if (isError($studiensemester_result)) return $studiensemester_result;
+		$studiensemester = getData($studiensemester_result)[0];
+
+		$stundensatz = $this->_ci->StundensatzModel->getDefaultStundensatz($mitarbeiter_uid, $studiensemester->start, $studiensemester->ende, 'lehre');
+		$echter_dv_result = $this->_ci->DienstverhaeltnisModel->existsDienstverhaeltnis($mitarbeiter_uid, $studiensemester->start, $studiensemester->ende, 'echterdv');
+
+		$echter_dv = false;
+
+		if (hasData($echter_dv_result))
+		{
+			$echter_dv = true;
+		}
+
+		$maxstunden = $this->getMaxStunden($mitarbeiter_uid, $studiensemester->studiensemester_kurzbz, $lehreinheit->studiengang_kz, $echter_dv);
+
+		$newData['semesterstunden'] = 0;
+		$newData['planstunden'] = 0;
+		if (!is_null($lehreinheit->semesterstunden))
+		{
+			$newData['semesterstunden'] = min($lehreinheit->semesterstunden, $maxstunden);
+			$newData['planstunden'] = min($lehreinheit->semesterstunden, $maxstunden);
+		}
+
+		$newData['lehreinheit_id'] = $lehreinheit->lehreinheit_id;
+		$newData['mitarbeiter_uid'] = $mitarbeiter_uid;
+		$newData['lehrfunktion_kurzbz'] = 'Lektor';
+		$newData['bismelden'] = true;
+		$newData['insertvon'] = getAuthUID();
+		$newData['insertamum'] = date('Y-m-d H:i:s');
+		$newData['stundensatz'] = $stundensatz;
+		$result = $this->_ci->LehreinheitmitarbeiterModel->insert($newData);
+
+		if (isError($result)) return $result;
+
+		return success("Lektor added successfully");
+	}
+
+	public function updateLektorFromLehreinheit($lehreinheit_id, $mitarbeiter_uid, $new_data)
+	{
+		$this->_ci->LehreinheitmitarbeiterModel->addSelect('lehre.tbl_lehreinheitmitarbeiter.*, lehre.tbl_lehreinheit.studiensemester_kurzbz, tbl_lehrveranstaltung.studiengang_kz');
+		$this->_ci->LehreinheitmitarbeiterModel->addJoin('lehre.tbl_lehreinheit', 'lehreinheit_id');
+		$this->_ci->LehreinheitmitarbeiterModel->addJoin('lehre.tbl_lehrveranstaltung', 'lehrveranstaltung_id');
+		$lehreinheit_result = $this->_ci->LehreinheitmitarbeiterModel->loadWhere(array('lehreinheit_id' => $lehreinheit_id, 'mitarbeiter_uid' => $mitarbeiter_uid));
+
+		if (isError($lehreinheit_result)) return $lehreinheit_result;
+
+		if (!hasData($lehreinheit_result)) return error("Lehreinheit not found");
+
+		$lehreinheit = getData($lehreinheit_result)[0];
+
+
+		//TODO kollision check, wird vorerst nicht implementiert -> nur über das FAS möglich
+		if (isset($new_data['mitarbeiter_uid']) && $new_data['mitarbeiter_uid'] !== $mitarbeiter_uid)
+		{
+			$this->_ci->load->model('ressource/stundenplandev_model', 'StundenplandevModel');
+			$this->_ci->StundenplandevModel->addGroupBy('stundenplandev_id');
+			$this->_ci->StundenplandevModel->addGroupBy('mitarbeiter_uid');
+			$this->_ci->StundenplandevModel->addGroupBy('mitarbeiter_uid');
+			$verplant = $this->_ci->StundenplandevModel->loadWhere(array('lehreinheit_id' => $lehreinheit_id, 'mitarbeiter_uid' => $mitarbeiter_uid));
+
+			if (hasData($verplant))
+				return error($this->_ci->phraseslib->t("lehre", "lektorbereitsverplant"));
+
+			$lehreinheit_data = $this->_ci->LehreinheitmitarbeiterModel->loadWhere(array('mitarbeiter_uid' => $new_data['mitarbeiter_uid'], 'lehreinheit_id' => $lehreinheit_id));
+
+			if (hasData($lehreinheit_data))
+				return error($this->_ci->phraseslib->t("lehre", "bereitzugeteilt"));
+
+		}
+		$warning = '';
+		if (isset($new_data['semesterstunden']))
+		{
+			$studiengang_result = $this->_ci->StudiengangModel->loadWhere(array('studiengang_kz' => $lehreinheit->studiengang_kz));
+			if (isError($studiengang_result)) return $studiengang_result;
+			if (!hasData($studiengang_result)) return error('Studiengang not found');
+			$studiengang = getData($studiengang_result)[0];
+
+			$studiensemester_result = $this->_ci->StudiensemesterModel->loadWhere(array('studiensemester_kurzbz' => $lehreinheit->studiensemester_kurzbz));
+			if (isError($studiensemester_result)) return $studiensemester_result;
+			$studiensemester = getData($studiensemester_result)[0];
+
+			$echter_dv_result = $this->_ci->DienstverhaeltnisModel->existsDienstverhaeltnis($mitarbeiter_uid, $studiensemester->start, $studiensemester->ende, 'echterdv');
+
+			$echter_dv = false;
+
+			if (hasData($echter_dv_result))
+			{
+				$echter_dv = true;
+			}
+
+			$neue_stunden_eingerechnet = isset($new_data['bismelden']) ? $new_data['bismelden'] : $lehreinheit->bismelden;
+			$alte_stunden_eingerechnet = $lehreinheit->bismelden;
+
+			if (($new_data['semesterstunden'] > $lehreinheit->semesterstunden) || $neue_stunden_eingerechnet)
+			{
+				$stundengrenze_result = $this->_ci->OrganisationseinheitModel->getStundengrenze($studiengang->oe_kurzbz, $echter_dv);
+				if (isError($stundengrenze_result)) return $stundengrenze_result;
+
+				$stundengrenze = getData($stundengrenze_result)[0];
+
+				$oe_result = $this->_ci->OrganisationseinheitModel->getChilds($stundengrenze->oe_kurzbz);
+				$oe_array = hasData($oe_result) ? array_column(getData($oe_result), 'oe_kurzbz') : array('');
+
+				if ($alte_stunden_eingerechnet && $neue_stunden_eingerechnet)
+					$this->_ci->LehreinheitmitarbeiterModel->addSelect("(SUM(tbl_lehreinheitmitarbeiter.semesterstunden) - ($lehreinheit->semesterstunden) + {$this->_ci->LehreinheitmitarbeiterModel->db->escape($new_data['semesterstunden'])}) as summe");
+				else if ($alte_stunden_eingerechnet && !$neue_stunden_eingerechnet)
+					$this->_ci->LehreinheitmitarbeiterModel->addSelect("(SUM(tbl_lehreinheitmitarbeiter.semesterstunden) - ($lehreinheit->semesterstunden)) as summe");
+				else if (!$alte_stunden_eingerechnet && $neue_stunden_eingerechnet)
+					$this->_ci->LehreinheitmitarbeiterModel->addSelect("(SUM(tbl_lehreinheitmitarbeiter.semesterstunden) + ({$this->_ci->LehreinheitmitarbeiterModel->db->escape($new_data['semesterstunden'])})) as summe");
+				else if (!$alte_stunden_eingerechnet && !$neue_stunden_eingerechnet)
+					$this->_ci->LehreinheitmitarbeiterModel->addSelect("(SUM(tbl_lehreinheitmitarbeiter.semesterstunden)) as summe");
+
+				$this->_ci->LehreinheitmitarbeiterModel->addJoin('lehre.tbl_lehreinheit', 'lehreinheit_id');
+				$this->_ci->LehreinheitmitarbeiterModel->addJoin('lehre.tbl_lehrveranstaltung', 'lehrveranstaltung_id');
+				$this->_ci->LehreinheitmitarbeiterModel->addJoin('public.tbl_studiengang', 'studiengang_kz');
+
+				$this->_ci->LehreinheitmitarbeiterModel->db->where('mitarbeiter_uid', (isset($new_data['mitarbeiter_uid']) ? $new_data['mitarbeiter_uid'] : $mitarbeiter_uid));
+				$this->_ci->LehreinheitmitarbeiterModel->db->where('studiensemester_kurzbz', $lehreinheit->studiensemester_kurzbz);
+				$this->_ci->LehreinheitmitarbeiterModel->db->where('bismelden', true);
+				$this->_ci->LehreinheitmitarbeiterModel->db->where('lower(mitarbeiter_uid) NOT LIKE', '_dummy%');
+
+				$this->_ci->LehreinheitmitarbeiterModel->db->where_in('tbl_studiengang.oe_kurzbz', $oe_array);
+
+
+				if(defined('FAS_LV_LEKTORINNENZUTEILUNG_STUNDEN_IGNORE_OE')
+					&& is_array(FAS_LV_LEKTORINNENZUTEILUNG_STUNDEN_IGNORE_OE)
+					&& count(FAS_LV_LEKTORINNENZUTEILUNG_STUNDEN_IGNORE_OE) > 0)
+				{
+					$this->_ci->LehreinheitmitarbeiterModel->db->where_not_in('tbl_studiengang.oe_kurzbz', FAS_LV_LEKTORINNENZUTEILUNG_STUNDEN_IGNORE_OE);
+				}
+
+				$summe_result = $this->_ci->LehreinheitmitarbeiterModel->load();
+
+				if (isError($summe_result)) return $summe_result;
+
+				if (!hasData($summe_result)) return error('Fehler beim Ermitteln der Gesamtstunden');
+
+				$summe = getData($summe_result)[0]->summe;
+
+				if ($summe > $stundengrenze->stunden)
+				{
+
+					if (!$echter_dv && (!$this->_ci->permissionlib->isBerechtigt('admin')))
+					{
+						if (!$this->LehrauftragAufFirma(isset($formData['mitarbeiter_uid']) ? $formData['mitarbeiter_uid'] : $mitarbeiter_uid))
+							return error("ACHTUNG: Die maximal erlaubte Semesterstundenanzahl des Lektors von $summe Stunden ($stundengrenze->stunden) wurde ueberschritten!\nDaten wurden NICHT gespeichert!\n\n");
+					}
+					else
+					{
+						$warning .= "ACHTUNG: Die maximal erlaubte Semesterstundenanzahl des Lektors von $summe Stunden ($stundengrenze->stunden) wurde ueberschritten!\nDaten wurden gespeichert!\n\n";
+					}
+
+					$stunden_limit_result = $this->getStundenInstitut($mitarbeiter_uid, $lehreinheit->studiensemester_kurzbz, $oe_array);
+
+					if (hasData($stunden_limit_result))
+					{
+						$stunden_limit_array = getData($stunden_limit_result);
+						foreach ($stunden_limit_array as $stunden_limit)
+						{
+							$warning .= $stunden_limit->summe . ' Stunden ' . $stunden_limit->bezeichnung . "\n";
+						}
+					}
+				}
+			}
+		}
+
+		$benutzer_result = $this->_ci->BenutzerModel->load(array(isset($formData['mitarbeiter_uid']) ? $formData['mitarbeiter_uid'] : $mitarbeiter_uid));
+
+		if (isError($benutzer_result)) return $benutzer_result;
+
+		if (!hasData($benutzer_result)) return error('Benutzer not found');
+
+		$benutzer_aktiv = getData($benutzer_result)[0]->aktiv;
+
+		if (!$benutzer_aktiv)
+			$warning .= "Achtung: Der/Die Benutzer*in ist inaktiv!\nBitte informieren Sie die Personalbteilung.\nDaten wurden gespeichert.\n\n";
+
+		$updatableFields = array(
+			'semesterstunden',
+			'planstunden',
+			'stundensatz',
+			'faktor',
+			'anmerkung',
+			'lehrfunktion_kurzbz',
+			'mitarbeiter_uid',
+			'bismelden'
+		);
+
+		$updateData = array();
+		foreach ($updatableFields as $field)
+		{
+			$value = isset($new_data[$field]) ? $new_data[$field] : null;
+
+			if ($value !== null)
+			{
+				$updateData[$field] = $value;
+			}
+		}
+		$updateData['updatevon'] = getAuthUID();
+		$updateData['updateamum'] = date('Y-m-d H:i:s');
+
+		$result = $this->_ci->LehreinheitmitarbeiterModel->update(array('lehreinheit_id' => $lehreinheit_id, 'mitarbeiter_uid' => $mitarbeiter_uid), $updateData);
+
+		if (isError($result)) return $result;
+
+		if ($warning !== '') return success(['warning' => $warning]);
+
+		return success('Erfolgreich geupdated');
+	}
+
+	private function getMaxStunden($mitarbeiter_uid, $studiensemester_kurzbz, $studiengang_kz, $echter_dv)
+	{
+		$maxstunden = 9999;
+
+		$studiengang_result = $this->_ci->StudiengangModel->loadWhere(array('studiengang_kz' => $studiengang_kz));
+		if (isError($studiengang_result)) return $studiengang_result;
+
+		$studiengang = getData($studiengang_result)[0];
+
+		$stundengrenze_result = $this->_ci->OrganisationseinheitModel->getStundengrenze($studiengang->oe_kurzbz, $echter_dv);
+		if (isError($stundengrenze_result)) return $stundengrenze_result;
+
+		$stundengrenze = getData($stundengrenze_result)[0];
+		$maxstunden = $stundengrenze->stunden;
+
+		$lehrauftrag_firma = $this->LehrauftragAufFirma($mitarbeiter_uid);
+
+		if (!$echter_dv && !$lehrauftrag_firma)
+		{
+			$oe_result = $this->_ci->OrganisationseinheitModel->getChilds($stundengrenze->oe_kurzbz);
+			$oe_array = hasData($oe_result) ? array_column(getData($oe_result), 'oe_kurzbz') : array('');
+
+			$stunden_summe_result = $this->getSumSemesterstunden($mitarbeiter_uid, $studiensemester_kurzbz, $oe_array);
+
+			$stunden_summe = hasData($stunden_summe_result) ? getData($stunden_summe_result)[0]->summe : 0;
+
+			if ($stunden_summe >= $maxstunden && (!$this->_ci->permissionlib->isBerechtigt('admin')))
+			{
+				$stunden_limit_result = $this->getStundenInstitut($mitarbeiter_uid, $studiensemester_kurzbz, $oe_array);
+
+				$error = "ACHTUNG: Die maximal erlaubte Semesterstundenanzahl des Lektors von $maxstunden Stunden ($stundengrenze->oe_kurzbz) wurde ueberschritten!\n
+				 			Daten wurden NICHT gespeichert!\n\n";
+
+				if (hasData($stunden_limit_result))
+				{
+					$stunden_limit_array = getData($stunden_limit_result);
+
+					foreach ($stunden_limit_array as $stunden_limit)
+					{
+						$error .= $stunden_limit->summe . ' Stunden ' . $stunden_limit->bezeichnung . "\n";
+					}
+				}
+				return error($error);
+			}
+			else
+				$maxstunden =- $stunden_summe;
+		}
+		return $maxstunden;
+	}
+
+	private function LehrauftragAufFirma($mitarbeiter_uid)
+	{
+		$this->_ci->MitarbeiterModel->addJoin('tbl_benutzer', 'tbl_mitarbeiter.mitarbeiter_uid = tbl_benutzer.uid');
+		$this->_ci->MitarbeiterModel->addJoin('tbl_person', 'person_id');
+		$this->_ci->MitarbeiterModel->addJoin('tbl_adresse', 'person_id', 'LEFT');
+		$this->_ci->MitarbeiterModel->addOrder('zustelladresse', 'DESC');
+		$this->_ci->MitarbeiterModel->addOrder('firma_id');
+		$this->_ci->MitarbeiterModel->addLimit(1);
+		$firma_result = $this->_ci->MitarbeiterModel->loadWhere(array('mitarbeiter_uid' => $mitarbeiter_uid));
+		$firma = getData($firma_result)[0]->firma_id;
+		return !is_null($firma);
+	}
+
+	private function getSumSemesterstunden($mitarbeiter_uid, $studiensemester_kurzbz, $oe_array = array())
+	{
+		$this->_ci->LehreinheitmitarbeiterModel->addSelect('SUM(tbl_lehreinheitmitarbeiter.semesterstunden) as summe');
+		$this->_ci->LehreinheitmitarbeiterModel->addJoin('lehre.tbl_lehreinheit', 'lehreinheit_id');
+		$this->_ci->LehreinheitmitarbeiterModel->addJoin('lehre.tbl_lehrveranstaltung', 'lehrveranstaltung_id');
+		$this->_ci->LehreinheitmitarbeiterModel->addJoin('public.tbl_studiengang', 'studiengang_kz');
+		$this->_ci->LehreinheitmitarbeiterModel->db->where('mitarbeiter_uid', $mitarbeiter_uid);
+		$this->_ci->LehreinheitmitarbeiterModel->db->where('studiensemester_kurzbz', $studiensemester_kurzbz);
+		$this->_ci->LehreinheitmitarbeiterModel->db->where('bismelden', true);
+		$this->_ci->LehreinheitmitarbeiterModel->db->where('lower(mitarbeiter_uid) NOT LIKE', '_dummy%');
+		$this->_ci->LehreinheitmitarbeiterModel->db->where_in('tbl_studiengang.oe_kurzbz', $oe_array);
+		return $this->_ci->LehreinheitmitarbeiterModel->load();
+	}
+
+	private function getStundenInstitut($mitarbeiter_uid, $studiensemester_kurzbz, $oe_array = array())
+	{
+		$this->_ci->LehreinheitmitarbeiterModel->addSelect('SUM(tbl_lehreinheitmitarbeiter.semesterstunden) as summe, tbl_studiengang.bezeichnung');
+		$this->_ci->LehreinheitmitarbeiterModel->addJoin('lehre.tbl_lehreinheit', 'lehreinheit_id');
+		$this->_ci->LehreinheitmitarbeiterModel->addJoin('lehre.tbl_lehrveranstaltung', 'lehrveranstaltung_id');
+		$this->_ci->LehreinheitmitarbeiterModel->addJoin('public.tbl_studiengang', 'studiengang_kz');
+		$this->_ci->LehreinheitmitarbeiterModel->db->where('mitarbeiter_uid', $mitarbeiter_uid);
+		$this->_ci->LehreinheitmitarbeiterModel->db->where('studiensemester_kurzbz', $studiensemester_kurzbz);
+		$this->_ci->LehreinheitmitarbeiterModel->db->where('bismelden', true);
+		$this->_ci->LehreinheitmitarbeiterModel->db->where_in('tbl_studiengang.oe_kurzbz', $oe_array);
+
+		if(defined('FAS_LV_LEKTORINNENZUTEILUNG_STUNDEN_IGNORE_OE')
+			&& is_array(FAS_LV_LEKTORINNENZUTEILUNG_STUNDEN_IGNORE_OE)
+			&& count(FAS_LV_LEKTORINNENZUTEILUNG_STUNDEN_IGNORE_OE) > 0)
+		{
+			$this->_ci->LehreinheitmitarbeiterModel->db->where_not_in('tbl_studiengang.oe_kurzbz', FAS_LV_LEKTORINNENZUTEILUNG_STUNDEN_IGNORE_OE);
+		}
+
+		$this->_ci->LehreinheitmitarbeiterModel->addGroupBy('tbl_studiengang.bezeichnung');
+		return $this->_ci->LehreinheitmitarbeiterModel->load();
+	}
+}
@@ -35,6 +35,90 @@ class PrestudentLib
 		$this->_ci->load->model('organisation/Studiengang_model', 'StudiengangModel');
 	}

+	/**
+	 * Sets initial prestudent entry, no status yet.
+	 * @return object success or error
+	 */
+	public function setPrestudent(
+		$person_id,
+		$studiengang_kz,
+		$ausbildungscode,
+		$anmerkung,
+		$foerderrelevant
+	)
+	{
+		// Prestudent anlegen
+		$data = [
+			'aufmerksamdurch_kurzbz' => 'k.A.',
+			'person_id' => $person_id,
+			'studiengang_kz' => $studiengang_kz,
+			'ausbildungcode' => $ausbildungscode,
+			'anmerkung' => $anmerkung,
+			'reihungstestangetreten' => false,
+			'bismelden' => true,
+			'foerderrelevant' => $foerderrelevant,
+			'insertamum' => date('c'),
+			'insertvon' => getAuthUID()
+		];
+
+		// Wenn die Person schon im System erfasst ist, dann die ZGV des Datensatzes uebernehmen
+		$this->_ci->PrestudentModel->addSelect('public.tbl_prestudent.*, public.tbl_person.vorname, public.tbl_person.nachname');
+		$this->_ci->PrestudentModel->addJoin('public.tbl_person', 'person_id');
+		$this->_ci->PrestudentModel->addOrder('zgvmas_code');
+		$this->_ci->PrestudentModel->addOrder('zgv_code', 'DESC');
+		$this->_ci->PrestudentModel->addLimit(1);
+		$result = $this->_ci->PrestudentModel->loadWhere([
+			'person_id' => $person_id,
+			'zgv_code IS NOT NULL' => null
+		]);
+
+		if (isError($result)) return $result;
+
+		if (hasData($result)) {
+			$prestudent = getData($result)[0];
+			if ($prestudent->zgv_code) {
+				$data['zgv_code'] = $prestudent->zgv_code;
+				$data['zgvort'] = $prestudent->zgvort;
+				$data['zgvdatum'] = $prestudent->zgvdatum;
+
+				$data['zgvmas_code'] = $prestudent->zgvmas_code;
+				$data['zgvmaort'] = $prestudent->zgvmaort;
+				$data['zgvmadatum'] = $prestudent->zgvmadatum;
+			}
+		}
+		// Prestudent speichern
+		return $this->_ci->PrestudentModel->insert($data);
+	}
+
+	/**
+	 * Sets first status of a prestudent.!
+	 * @return object success or error
+	 */
+	public function setFirstStatus(
+		$prestudent_id,
+		$status_kurzbz,
+		$studiensemester_kurzbz,
+		$ausbildungssemester = null,
+		$orgform_kurzbz = null,
+		$studienplan_id = null
+	)
+	{
+		// Prestudent Rolle Anlegen
+		$data = [
+			'prestudent_id' => $prestudent_id,
+			'status_kurzbz' => $status_kurzbz,
+			'studiensemester_kurzbz' => $studiensemester_kurzbz,
+			'ausbildungssemester' => $ausbildungssemester ?: 0,
+			'orgform_kurzbz' => $orgform_kurzbz ?: null,
+			'studienplan_id' => $studienplan_id ?: null,
+			'datum' => date('Y-m-d'),
+			'insertamum' => date('c'),
+			'insertvon' => getAuthUID()
+		];
+
+		return  $this->_ci->PrestudentstatusModel->insert($data);
+	}
+
 	public function setAbbrecher(
 		$prestudent_id,
 		$studiensemester_kurzbz,
@@ -603,9 +687,6 @@ class PrestudentLib
 		$now = date('c');
 		$today = date('Y-m-d');

-		$jahr = mb_substr($studiensemester_kurzbz, 4, 2);
-
-
 		// Genererate Personenkennzeichen
 		$personenkennzeichen = $this->_ci->StudentModel->generateMatrikelnummer2(
 			$student_data->studiengang_kz,
@@ -615,8 +696,9 @@ class PrestudentLib
 		if (isError($personenkennzeichen))
 			return $personenkennzeichen;
 		$personenkennzeichen = getData($personenkennzeichen);
-		
-		
+
+		$jahr = mb_substr($personenkennzeichen, 0, 2);
+
 		// Generate UID
 		$uid = $this->_ci->StudentModel->generateUID(
 			$student_data->kurzbz,
@@ -641,7 +723,7 @@ class PrestudentLib


 		// Generate Alias
-		$alias = '';
+		$alias = null;
 		if (!defined('GENERATE_ALIAS_STUDENT')
 			|| GENERATE_ALIAS_STUDENT === true
 		) {
@@ -889,6 +971,155 @@ class PrestudentLib
 		);
 	}

+	/**
+	 * Creates an incoming, saves necessary data for an incoming. 
+	 * @param $prestudent_id existing prestudent, for which incoming entry is created
+	 * @param $studiengang_kz Studiengang assigned to incoming
+	 * @param $studiensemester_kurzbz start semester for incoming
+	 * @return object success if incoming successfully saved, or error
+	 */
+	public function setFirstIncoming($prestudent_id, $studiengang_kz, $studiensemester_kurzbz, $orgform_kurzbz, $studienplan_id)
+	{
+		// Verband and Ausbildungssemester for incoming
+		$authUID = getAuthUID();
+		$incomingVerband = 'I';
+		$incomingAusbildungssemester = '0';
+
+		// get prestudent
+		$this->_ci->PrestudentModel->addJoin('public.tbl_person p', 'person_id');
+		$this->_ci->PrestudentModel->addJoin('public.tbl_studiengang stg', 'studiengang_kz');
+		$result = $this->_ci->PrestudentModel->load($prestudent_id);
+
+		if (isError($result)) return $result;
+		if (!hasData($result)) return error('No prestudent');
+
+		$student_data = getData($result)[0];
+
+		$result = $this->setFirstStatus(
+			$prestudent_id,
+			$this->_ci->PrestudentstatusModel::STATUS_INCOMING,
+			$studiensemester_kurzbz,
+			$incomingAusbildungssemester,
+			$orgform_kurzbz,
+			$studienplan_id
+		);
+		if (isError($result)) return $result;
+		if (!hasData($result)) return error('Error when adding prestudentstatus');
+
+		// generate Personenkennzeichen
+		$result = $this->_ci->StudentModel->generateMatrikelnummer2($studiengang_kz, $studiensemester_kurzbz);
+		if (isError($result)) return $result;
+		if (!hasData($result)) return error('No personenkennzeichen could be generated');
+
+		$personenkennzeichen = getData($result);
+
+		$jahr = mb_substr($personenkennzeichen, 0, 2);
+		$stg = mb_substr($personenkennzeichen, 3, 4);
+
+		$nachname_clean = mb_strtolower(sanitizeProblemChars($student_data->nachname));
+		$vorname_clean = mb_strtolower(sanitizeProblemChars($student_data->vorname));
+		$nachname_clean = str_replace(' ','_', $nachname_clean);
+		$vorname_clean = str_replace(' ','_', $vorname_clean);
+
+		// get Studiengang data
+		$result = $this->_ci->StudiengangModel->load(ltrim($stg, '0'));
+		if (isError($result)) return $result;
+		if (!hasData($result)) return error('No Studiengang');
+
+		$stgObj = getData($result)[0];
+
+		// gernerate uid
+		$result = $this->_ci->StudentModel->generateUID($stgObj->kurzbz, $jahr, $stgObj->typ, $personenkennzeichen, $vorname_clean, $nachname_clean);
+		if (isError($result)) return $result;
+		if (!hasData($result)) return error("UID could not be generated");
+		$uid = getData($result);
+
+		//Benutzerdatensatz anlegen
+		$benutzer = [
+			'uid' => $uid,
+			'person_id' => $student_data->person_id,
+			'aktiv' => true,
+			'aktivierungscode' => $this->_ci->BenutzerModel->generateActivationkey()
+		];
+
+		// Generate Alias
+		$alias = '';
+		if (!defined('GENERATE_ALIAS_STUDENT') || GENERATE_ALIAS_STUDENT === true)
+		{
+			$result = $this->_ci->BenutzerModel->generateAliasFromName($student_data->vorname, $student_data->nachname);
+			if (isError($result))
+				return $result;
+			$alias = getData($result);
+		}
+
+		$benutzer['alias'] = $alias;
+		$benutzer['insertamum'] = date('Y-m-d H:i:s');
+		$benutzer['insertvon'] = $authUID;
+
+		$result = $this->_ci->BenutzerModel->insert($benutzer);
+
+		if (isError($result)) return $result;
+
+		// Studentendatensatz anlegen
+		$student = [
+			'student_uid' => $uid,
+			'matrikelnr' => $personenkennzeichen,
+			'prestudent_id' => $prestudent_id,
+			'studiengang_kz' => $studiengang_kz,
+			'semester' => $incomingAusbildungssemester,
+			'verband' => $incomingVerband,
+			'gruppe' => ' '
+		];
+
+		$result = $this->_ci->LehrverbandModel->loadWhere([
+				'studiengang_kz' => $student['studiengang_kz'],
+				'semester' => $student['semester'],
+				'verband' => $student['verband'],
+				'gruppe' => $student['gruppe']
+			]);
+
+		if (isError($result)) return $result;
+
+		if (!hasData($result))
+		{
+			// Add Lehrverband if it does not exist
+			$result = $this->_ci->LehrverbandModel->insert([
+				'studiengang_kz' => $student_data->studiengang_kz,
+				'semester' => $student['semester'],
+				'verband' => $student['verband'],
+				'gruppe' => $student['gruppe'],
+				'bezeichnung' => 'Incoming',
+				'aktiv' => true
+			]);
+
+			if (isError($result)) return $result;
+		}
+
+		// add student
+		$student['insertamum'] = date('Y-m-d H:i:s');
+		$student['insertvon'] = $authUID;
+
+		$result = $this->_ci->StudentModel->insert($student);
+		if (isError($result)) return $result;
+
+		// Add Studentlehrverband
+		$result = $this->_ci->StudentlehrverbandModel->insert([
+			'student_uid' => $uid,
+			'studiensemester_kurzbz' => $studiensemester_kurzbz,
+			'studiengang_kz' => $student_data->studiengang_kz,
+			'semester' => $incomingAusbildungssemester,
+			'verband' => $incomingVerband,
+			'gruppe' => ' ',
+			'insertamum' => date('Y-m-d H:i:s'),
+			'insertvon' => $authUID
+		]);
+
+		if (isError($result))
+			return $result;
+
+		return success($prestudent_id);
+	}
+
 	protected function setBasic($authUID, $now, $status_kurzbz, $prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id = null)
 	{
 		$result = $this->_ci->PrestudentstatusModel->getLastStatus($prestudent_id);
@@ -183,7 +183,10 @@ class ProfilLib{
 		$zutrittskarte_ausgegebenam = $zutrittskarte_ausgegebenam ? current($zutrittskarte_ausgegebenam)->ausgegebenam : null;
 		
 		//? formats date from 01-01-2000 to 01.01.2000
-		$zutrittskarte_ausgegebenam = str_replace("-", ".", $zutrittskarte_ausgegebenam);
+		if ($zutrittskarte_ausgegebenam !== NULL)
+		{
+			$zutrittskarte_ausgegebenam = (new DateTime($zutrittskarte_ausgegebenam))->format('d.m.Y');
+		}
 		return $zutrittskarte_ausgegebenam;
 	}

@@ -196,7 +199,7 @@ class ProfilLib{
 	private function getAdressenInfo($pid)
 	{
 		$this->ci->load->model("person/Adresse_model","AdresseModel");
-		$adresse_res = $this->ci->AdresseModel->addSelect(["adresse_id", "strasse", "tbl_adressentyp.bezeichnung as typ", "plz", "ort", "zustelladresse", "gemeinde", "nation"]);
+		$adresse_res = $this->ci->AdresseModel->addSelect(["adresse_id", "strasse", "tbl_adressentyp.bezeichnung as typ", "plz", "ort", "heimatadresse", "zustelladresse", "gemeinde", "nation"]);
 		$adresse_res = $this->ci->AdresseModel->addOrder("zustelladresse", "DESC");
 		$adresse_res = $this->ci->AdresseModel->addJoin("tbl_adressentyp", "typ=adressentyp_kurzbz");

@@ -214,7 +217,7 @@ class ProfilLib{
 	 * @param  integer $uid the userID used to get the kontakt information
 	 * @return array all the kontakt information corresponding to a userID
 	 */
-	private function getKontaktInfo($pid)
+	private function getKontaktInfo($pid, $includehidden=false)
 	{
 		$this->ci->load->model("person/Kontakt_model","KontaktModel");
 		$this->ci->KontaktModel->addSelect(['kontakttyp', 'kontakt_id', 'kontakt', 'tbl_kontakt.anmerkung', 'tbl_kontakt.zustellung']);
@@ -222,7 +225,13 @@ class ProfilLib{
 		$this->ci->KontaktModel->addJoin('public.tbl_firma', 'firma_id', 'LEFT');
 		$this->ci->KontaktModel->addOrder('kontakttyp, kontakt, tbl_kontakt.updateamum, tbl_kontakt.insertamum');

-		$kontakte_res = $this->ci->KontaktModel->loadWhere(['person_id' => $pid]);
+		$params = array('person_id' => $pid);
+		if(!$includehidden)
+		{
+			$params['kontakttyp <>'] = 'hidden';
+		}
+
+		$kontakte_res = $this->ci->KontaktModel->loadWhere($params);
 		if(isError($kontakte_res)){
 			return error(getData($kontakte_res));
 		}
@@ -303,10 +312,22 @@ class ProfilLib{
 	private function getBenutzerFunktion($uid)
 	{
 		$this->ci->load->model("person/Benutzerfunktion_model","BenutzerfunktionModel");
-		$this->ci->BenutzerfunktionModel->addSelect(["tbl_benutzerfunktion.bezeichnung as Bezeichnung", "tbl_organisationseinheit.bezeichnung as Organisationseinheit", "datum_von as Gültig_von", "datum_bis as Gültig_bis", "wochenstunden as Wochenstunden"]);
+		$this->ci->BenutzerfunktionModel->addSelect([
+			"CASE WHEN (tbl_benutzerfunktion.bezeichnung IS NOT NULL AND tbl_benutzerfunktion.bezeichnung <> '' AND tbl_benutzerfunktion.bezeichnung <> tbl_funktion.beschreibung) THEN tbl_funktion.beschreibung || ' - ' || tbl_benutzerfunktion.bezeichnung ELSE tbl_funktion.beschreibung END as \"Bezeichnung\"",
+			"tbl_organisationseinheit.bezeichnung as Organisationseinheit",
+			"datum_von as Gültig_von",
+			"datum_bis as Gültig_bis",
+			"COALESCE(wochenstunden, '0'::numeric(5,2)) AS \"Wochenstunden\""
+		]);
+		$this->ci->BenutzerfunktionModel->addJoin("tbl_funktion", "funktion_kurzbz");
 		$this->ci->BenutzerfunktionModel->addJoin("tbl_organisationseinheit", "oe_kurzbz");

-		$benutzer_funktion_res = $this->ci->BenutzerfunktionModel->loadWhere(array('uid' => $uid));
+		$benutzer_funktion_res = $this->ci->BenutzerfunktionModel->loadWhere(
+			array(
+				'uid' => $uid,
+				'NOW()::date BETWEEN COALESCE(datum_von, \'1970-01-01\'::date) AND COALESCE(datum_bis, \'2170-12-01\'::date)' => null
+			)
+		);
 		if(isError($benutzer_funktion_res)){
 			return error(getData($benutzer_funktion_res));
 		}
@@ -229,9 +229,10 @@ class StundenplanLib
 		$this->_ci->load->model('ressource/Stundenplan_model', 'StundenplanModel');

 		$is_mitarbeiter = getData($this->_ci->MitarbeiterModel->isMitarbeiter(getAuthUID()));
-		
-		if ($is_mitarbeiter) {
-			$reservierungen = $this->_ci->ReservierungModel->getReservierungenMitarbeiter($start_date, $end_date, $ort_kurzbz);
+
+		if ($is_mitarbeiter && empty($ort_kurzbz)) {
+			// request for personal lvplan show only reservations of logged in user
+			$reservierungen = $this->_ci->ReservierungModel->getReservierungenMitarbeiter($start_date, $end_date);
 		} else {
 			// querying the reservierungen
 			$reservierungen = $this->_ci->ReservierungModel->getReservierungen($start_date, $end_date, $ort_kurzbz);
@@ -24,7 +24,6 @@ class GehaltsbestandteilLib
 		$this->CI = get_instance();
 		$this->CI->load->model('vertragsbestandteil/Gehaltsbestandteil_model', 
 			'GehaltsbestandteilModel');
-		$this->CI->load->library('extensions/FHC-Core-Personalverwaltung/abrechnung/GehaltsLib');
 		$this->GehaltsbestandteilModel = $this->CI->GehaltsbestandteilModel;
 	}

@@ -121,10 +120,6 @@ class GehaltsbestandteilLib
 	{
 		$this->setUIDtoPGSQL();

-		// delete Gehaltsabrechnung
-		$ret = $this->CI->gehaltslib->deleteAbrechnung($gehaltsbestandteil);
-
-		//
 		$ret = $this->GehaltsbestandteilModel->delete($gehaltsbestandteil->getGehaltsbestandteil_id());
 		
 		if (isError($ret))
@@ -384,6 +384,80 @@ class Vertrag_model extends DB_Model
 	    }
    }

+	public function getVertrag($mitarbeiter_uid, $lehreinheit_id)
+	{
+		$this->addSelect('tbl_lehreinheitmitarbeiter.*, tbl_vertrag.*, status.bezeichnung as vertragsstatus, status.vertragsstatus_kurzbz');
+		$this->addJoin('lehre.tbl_lehreinheitmitarbeiter', 'vertrag_id');
+		$this->addJoin('lehre.tbl_vertragstyp', 'vertragstyp_kurzbz', 'LEFT');
+		$this->addJoin('
+			(
+				SELECT DISTINCT ON(vertrag_id) vertrag_id,
+					bezeichnung, 
+					tbl_vertragsstatus.vertragsstatus_kurzbz 
+				FROM lehre.tbl_vertrag_vertragsstatus 
+					JOIN lehre.tbl_vertragsstatus USING(vertragsstatus_kurzbz) 
+				ORDER BY vertrag_id, datum DESC
+			) as status', 'status.vertrag_id = lehre.tbl_vertrag.vertrag_id', 'LEFT');
+
+		return $this->loadWhere(array('mitarbeiter_uid' => $mitarbeiter_uid, 'lehreinheit_id' => $lehreinheit_id));
+	}
+
+	public function getVertragById($vertrag_id)
+	{
+		$this->addSelect(
+			'tbl_vertrag.vertrag_id, vertragstyp_kurzbz, vertragsstunden, vertragsstunden_studiensemester_kurzbz, status.vertragsstatus_kurzbz,
+			status.bezeichnung AS vertragsstatus, tbl_vertrag.betrag, lema.semesterstunden, lema.stundensatz'
+		);
+		$this->addJoin('lehre.tbl_lehreinheitmitarbeiter lema', 'tbl_vertrag.vertrag_id = lema.vertrag_id', 'LEFT');
+		$this->addJoin('
+			(
+				SELECT DISTINCT ON(vst.vertrag_id) vst.vertrag_id,
+					bezeichnung,
+					tbl_vertragsstatus.vertragsstatus_kurzbz
+				FROM lehre.tbl_vertrag_vertragsstatus vst
+					JOIN lehre.tbl_vertragsstatus USING(vertragsstatus_kurzbz)
+				ORDER BY vst.vertrag_id, datum DESC
+			) as status', 'status.vertrag_id = lehre.tbl_vertrag.vertrag_id', 'LEFT');
+
+		return $this->loadWhere(['tbl_vertrag.vertrag_id' => $vertrag_id]);
+	}
+
+	public function cancelVertrag($vertrag_id, $mitarbeiter_uid)
+	{
+		$vertrag = $this->load($vertrag_id);
+
+		if (!hasData($vertrag))
+			return error("Contract not found");
+
+		$vertrag = getData($vertrag)[0];
+
+		$this->_updateVertragRelevant($vertrag->vertrag_id);
+
+		return $this->VertragvertragsstatusModel->insert(array(
+			'vertrag_id' => $vertrag->vertrag_id,
+			'vertragsstatus_kurzbz' => 'storno',
+			'uid' => $mitarbeiter_uid,
+			'datum' => 'NOW()',
+			'insertamum' => 'NOW()',
+			'insertvon' => getAuthUID()
+		));
+	}
+
+	public function deleteVertrag($vertrag_id)
+	{
+		$vertrag = $this->load($vertrag_id);
+
+		if (!hasData($vertrag))
+			return error("Contract not found");
+
+		$vertrag = getData($vertrag)[0];
+
+		$this->_updateVertragRelevant($vertrag->vertrag_id);
+
+		$this->VertragvertragsstatusModel->delete(array('vertrag_id' => $vertrag->vertrag_id));
+		return $this->delete(array('vertrag_id' => $vertrag->vertrag_id));
+	}
+
    // -----------------------------------------------------------------------------------------------------------------
    // Private methods

@@ -415,4 +489,20 @@ class Vertrag_model extends DB_Model

        return $bezeichnung;
    }
+
+	private function _updateVertragRelevant($vertrag_id)
+	{
+		$this->LehreinheitmitarbeiterModel->update(
+			array("vertrag_id" => $vertrag_id),
+			array(
+				'vertrag_id' => null
+			)
+		);
+		$this->ProjektbetreuerModel->update(
+			array("vertrag_id" => $vertrag_id),
+			array(
+				'vertrag_id' => null
+			)
+		);
+	}
 }
@@ -1,5 +1,7 @@
 <?php

+use CI3_Events as Events;
+
 class Prestudent_model extends DB_Model
 {
 	/**
@@ -782,4 +784,118 @@ class Prestudent_model extends DB_Model

 		return $this->execQuery($query, array($person_id));
 	}
+
+	/**
+	 * Adds a filter to the query builder
+	 *
+	 * @param array			$filter
+	 * @return boolean
+	 */
+	public function addFilter($filter)
+	{
+		if (!isset($filter['type']))
+			return false;
+
+		switch ($filter['type']) {
+			case 'konto':
+				$bt = '';
+				$stdsem = '';
+				$comp = '!=';
+
+				if (isset($filter['buchungstyp_kurzbz']) && $filter['buchungstyp_kurzbz'] != 'all')
+					$bt = ' AND buchungstyp_kurzbz=' . $this->escape($filter['buchungstyp_kurzbz']);
+				
+				if (isset($filter['studiensemester_kurzbz']))
+					$stdsem = ' AND studiensemester_kurzbz=' . $this->escape($filter['studiensemester_kurzbz']);
+
+				if (isset($filter['missing']) && $filter['missing']) {
+					$comp = '=';
+					$this->db->where('get_rolle_prestudent(tbl_prestudent.prestudent_id, NULL) !=', 'Incoming');
+				}
+
+				$this->db->where('(
+					SELECT count(*) 
+					FROM public.tbl_konto 
+					WHERE person_id=tbl_prestudent.person_id 
+					' . $bt . ' 
+					' . $stdsem . '
+				) ' . $comp, 0);
+				break;
+			
+			case 'konto_counter':
+				$bt = '';
+				$samestg = '';
+				$past = '';
+
+				if (isset($filter['buchungstyp_kurzbz']) && $filter['buchungstyp_kurzbz'] != 'all')
+					$bt = ' AND buchungstyp_kurzbz = ' . $this->escape($filter['buchungstyp_kurzbz']);
+				
+				if (isset($filter['samestg']) && $filter['samestg'])
+					$samestg = ' AND studiengang_kz = tbl_prestudent.studiengang_kz';
+
+				if (isset($filter['past']) && $filter['past'])
+					$past = ' AND buchungsdatum < NOW()';
+
+				$this->db->where('(
+					SELECT sum(betrag) 
+					FROM public.tbl_konto 
+					WHERE person_id = tbl_prestudent.person_id 
+					' . $bt . ' 
+					' . $samestg . '
+					' . $past . '
+				) !=', 0);
+				break;
+			
+			case 'zgv':
+				$this->db
+					->group_start()
+						->group_start()
+							->where('zgv_code IS NOT NULL')
+							->where('zgvdatum IS NULL')
+						->group_end()
+						->or_group_start()
+							->where('zgvmas_code IS NOT NULL')
+							->where('zgvmadatum IS NULL')
+						->group_end()
+						->or_group_start()
+							->where('zgvdoktor_code IS NOT NULL')
+							->where('zgvdoktordatum IS NULL')
+						->group_end()
+					->group_end();
+				break;
+			
+			case 'documents':
+				$this->db->where('(
+					SELECT count(*) 
+					FROM public.tbl_dokumentstudiengang 
+					WHERE dokument_kurzbz NOT IN (
+						SELECT dokument_kurzbz 
+						FROM tbl_dokumentprestudent 
+						WHERE prestudent_id=tbl_prestudent.prestudent_id
+					)
+					AND studiengang_kz=tbl_prestudent.studiengang_kz
+				) !=', 0);
+				break;
+
+			case 'statusgrund':
+				if (!isset($filter['statusgrund_id']))
+					return false;
+
+				if (isset($filter['studiensemester_kurzbz']))
+					$stdsem = ' AND studiensemester_kurzbz=' . $this->escape($filter['studiensemester_kurzbz']);
+
+				$this->db->where('(
+					SELECT count(*) 
+					FROM public.tbl_prestudentstatus 
+					WHERE prestudent_id = tbl_prestudent.prestudent_id 
+					AND statusgrund_id = ' . $this->escape($filter['statusgrund_id']) . '
+					' . $stdsem . '
+				) !=', 0);
+				break;
+		}
+
+		Events::trigger('prestudent_add_filter', $filter);
+
+		return true;
+	}
 }
@@ -290,7 +290,11 @@ class Prestudentstatus_model extends DB_Model
 	 */
 	public function getLastStatusPerson($person_id, $studiensemester_kurzbz = null)
 	{
-		$query = 'SELECT *
+		$query = 'SELECT p.*, ps.*, s.*,
+					stg.kurzbz AS studiengang_kurzbz, stg.kurzbzlang AS studiengang_kurzbzlang,
+					UPPER(typ::varchar(1) || kurzbz) AS studiengang_kuerzel,
+					stg.typ AS studiengang_typ, stg.bezeichnung AS studiengang_bezeichnung, stg.english AS studiengang_bezeichnung_english,
+					stg.orgform_kurzbz AS studiengang_orgform
 					FROM public.tbl_prestudent p
 					JOIN (
 							SELECT DISTINCT ON(prestudent_id) *
@@ -298,7 +302,8 @@ class Prestudentstatus_model extends DB_Model
 							 WHERE prestudent_id IN (SELECT prestudent_id FROM public.tbl_prestudent WHERE person_id = ?)
 						  ORDER BY prestudent_id, datum desc, insertamum desc
 						) ps USING(prestudent_id)
-					JOIN public.tbl_status USING(status_kurzbz)';
+					JOIN public.tbl_status s USING(status_kurzbz)
+					JOIN public.tbl_studiengang stg USING (studiengang_kz)';

 		$parametersArray = array($person_id);

@@ -27,7 +27,7 @@ class Student_model extends DB_Model
        $this->addSelect('1');

        $result = $this->loadWhere(array('student_uid' => $uid));
-        
+

        if(hasData($result))
        {
@@ -169,7 +169,7 @@ class Student_model extends DB_Model

 		$max = 0;
 		if ($matrikelnrres && hasData($matrikelnrres)) {
-			$max = mb_substr($matrikelnrres->retval[0]->matrikelnr, 7);
+			$max = mb_substr(trim(getData($matrikelnrres)[0]->matrikelnr), -3);
 			if (!is_numeric($max)) {
 				$max = (int)$max;
 			}
@@ -279,4 +279,12 @@ class Student_model extends DB_Model
 	{
 		return $student_uid . '@' . DOMAIN;
 	}
+	
+	public function getEmailAnredeForStudentUID($student_uid) {
+		$qry = "SELECT anrede, titelpre, vorname, vornamen, nachname, titelpost
+				FROM campus.vw_student 
+				WHERE uid = ?";
+
+		return $this->execReadOnlyQuery($qry, array($student_uid));
+	}
 }
@@ -1,4 +1,6 @@
 <?php
+
+use \CI3_Events as Events;
 class Lehreinheit_model extends DB_Model
 {

@@ -15,6 +17,9 @@ class Lehreinheit_model extends DB_Model
 		$this->load->model('education/lehreinheitgruppe_model', 'LehreinheitgruppeModel');
 		$this->load->model('education/lehreinheitmitarbeiter_model', 'LehreinheitmitarbeiterModel');
 		$this->load->model('organisation/studiengang_model', 'StudiengangModel');
+		$this->load->model('ressource/stundenplandev_model', 'StundenplandevModel');
+		$this->load->model('ressource/stundenplan_model', 'StundenplanModel');
+		$this->load->model('system/Log_model', 'LogModel');
 	}

 	/**
@@ -28,6 +33,11 @@ class Lehreinheit_model extends DB_Model
 	{
 		$lehreinheiten = array();

+		$this->addSelect(
+			'lehreinheit_id, lehrveranstaltung_id, studiensemester_kurzbz, lehrform_kurzbz,
+			stundenblockung, wochenrythmus, start_kw, raumtyp, raumtypalternativ,
+			sprache, lehre, unr, lvnr, lehrfach_id, gewicht'
+		);
 		$this->addOrder('lehreinheit_id');
 		$les = $this->loadWhere(
 			array('lehrveranstaltung_id' => $lehrveranstaltung_id,
@@ -303,4 +313,430 @@ EOSQL;

 		return $this->execQuery($query, $params);
 	}
+
+
+	public function getOes($lehreinheit_id)
+	{
+		$this->addSelect('tbl_lehrveranstaltung.studiengang_kz,
+								tbl_lehrveranstaltung.lehrveranstaltung_id');
+		$this->addJoin('lehre.tbl_lehrveranstaltung', 'tbl_lehrveranstaltung.lehrveranstaltung_id = tbl_lehreinheit.lehrveranstaltung_id');
+		$result = $this->loadWhere(array('lehreinheit_id' => $lehreinheit_id));
+
+		if (isError($result)) return $result;
+
+		if (hasData($result))
+		{
+			$lehrveranstaltung = getData($result)[0];
+			$oe_result = $this->LehrveranstaltungModel->getAllOe($lehrveranstaltung->lehrveranstaltung_id);
+			return success(hasData($oe_result) ? array_column(getData($oe_result), 'oe_kurzbz') : array(''));
+		}
+	}
+
+	public function getLehrfachOe($lehreinheit_id)
+	{
+		$this->addSelect('lehrfach.oe_kurzbz');
+		$this->addJoin('lehre.tbl_lehrveranstaltung lehrfach', 'lehrfach.lehrveranstaltung_id = tbl_lehreinheit.lehrfach_id', 'LEFT');
+		return $this->loadWhere(array('lehreinheit_id' => $lehreinheit_id));
+	}
+
+
+	public function getByLvidStudiensemester($lv_id, $studiensemester_kurzbz, $mitarbeiter_uid = null, $fachbereich_kurzbz = null)
+	{
+		$qry = "WITH lehreinheiten AS (
+				SELECT *
+				FROM lehre.tbl_lehreinheit
+				WHERE lehrveranstaltung_id = ?
+					AND studiensemester_kurzbz = ?
+			),
+				". $this->_getGruppenCTE() . ", 
+				". $this->_getLektorenCTE() . ", 
+				". $this->_getFachbereichCTE() . ",
+				". $this->_getTagsCTE() . "
+				
+				SELECT lehreinheiten.*,
+						lehreinheiten.lehrform_kurzbz as lv_lehrform_kurzbz,
+						tbl_lehrveranstaltung.kurzbz as lv_kurzbz,
+						tbl_lehrveranstaltung.bezeichnung as lv_bezeichnung,
+						COALESCE(tag_data_agg.tags, '[]'::json) AS tags,
+						gruppen.gruppen,
+						mitarbeiter.lektoren,
+						mitarbeiter.le_planstunden,
+						mitarbeiter.vorname,
+						mitarbeiter.nachname,
+						mitarbeiter.semesterstunden,
+						fachbereich.bezeichnung as fachbereich,
+						UPPER(CONCAT(tbl_studiengang.typ,tbl_studiengang.kurzbz)) as studiengang,
+						semester
+				FROM lehreinheiten
+					LEFT JOIN lehre.tbl_lehrveranstaltung ON tbl_lehrveranstaltung.lehrveranstaltung_id = lehreinheiten.lehrfach_id
+					LEFT JOIN public.tbl_studiengang USING(studiengang_kz)
+					LEFT JOIN tag_data_agg ON tag_data_agg.lehreinheit_id = lehreinheiten.lehreinheit_id
+					LEFT JOIN mitarbeiter ON lehreinheiten.lehreinheit_id = mitarbeiter.lehreinheit_id
+					LEFT JOIN fachbereich ON lehreinheiten.lehreinheit_id = fachbereich.lehreinheit_id
+					LEFT JOIN gruppen ON lehreinheiten.lehreinheit_id = gruppen.lehreinheit_id
+				WHERE true 
+				";
+
+		$params = array($lv_id, $studiensemester_kurzbz);
+
+		if ($mitarbeiter_uid !== null)
+		{
+			$qry .= " AND lehreinheiten.lehreinheit_id IN ( SELECT lehreinheit_id FROM lehre.tbl_lehreinheitmitarbeiter WHERE mitarbeiter_uid = ?) ";
+			$params[] = $mitarbeiter_uid;
+		}
+
+		if($fachbereich_kurzbz !== null)
+		{
+			$qry .= " AND EXISTS ( SELECT 1 FROM lehre.tbl_lehrveranstaltung JOIN public.tbl_fachbereich USING(oe_kurzbz) WHERE fachbereich_kurzbz= ? AND lehrveranstaltung_id=lehreinheiten.lehrfach_id)";
+			$params[] = $fachbereich_kurzbz;
+		}
+		$qry .= " ORDER BY lehrveranstaltung_id;";
+
+		return $this->execReadOnlyQuery($qry, $params);
+	}
+
+	private function getLVTmp($stg_kz = null)
+	{
+		$qry = "SELECT DISTINCT ON(lehrveranstaltung_id) *, 
+						'' as stundenblockung,
+						'' as lehreinheit_id,
+						'' as wochenrythmus,
+						'' as raumtyp,
+						'' as raumtypalternativ,
+						'' as gruppen,
+						'' as studienplan_id,
+						'' as studienplan_beeichnung, 
+						UPPER(CONCAT(vw_lehreinheit.stg_typ, vw_lehreinheit.stg_kurzbz)) as studiengang
+                FROM campus.vw_lehreinheit
+				WHERE mitarbeiter_uid = ?
+				  AND studiensemester_kurzbz = ?";
+
+		if (!is_null($stg_kz)) {
+			$qry .= " AND lv_studiengang_kz = ?";
+		}
+
+		return $qry;
+	}
+
+	public function getLvsByEmployee($mitarbeiter_uid, $studiensemester_kurzbz, $stg_kz = null)
+	{
+		$qry = "WITH lvs AS (" . $this->getLVTmp($stg_kz) . ")
+				SELECT lvs.*
+				FROM lvs
+				";
+
+		$params = array($mitarbeiter_uid, $studiensemester_kurzbz);
+		if (!is_null($stg_kz))
+		{
+			$params[] = $stg_kz;
+		}
+		return $this->execReadOnlyQuery($qry, $params);
+	}
+
+	public function deleteLehreinheit($lehreinheit_id)
+	{
+		$lehreinheit = $this->loadWhere(array('lehreinheit_id' => $lehreinheit_id));
+
+		if (isError($lehreinheit)) return $lehreinheit;
+
+		if (!hasData($lehreinheit))
+			return error("Lehreinheit not found!");
+
+		$errorReasons = [];
+		$addError = function ($reason = null) use (&$errorReasons)
+		{
+			if ($reason !== null)
+			{
+				$errorReasons[] = $reason;
+			}
+		};
+
+		$stundenplandev_result = $this->StundenplandevModel->loadWhere(array('lehreinheit_id' => $lehreinheit_id));
+		$stundenplan_result = $this->StundenplanModel->loadWhere(array('lehreinheit_id' => $lehreinheit_id));
+
+		if (hasData($stundenplan_result) || hasData($stundenplandev_result))
+			$addError('Dieser LV-Teil ist bereits im LV-Plan verplant und kann daher nicht geloescht werden!');
+
+		Events::trigger(
+			'lehreinheit_delete_check',
+			$addError,
+			$lehreinheit_id
+		);
+
+		if (!empty($errorReasons)) return error($errorReasons);
+
+		$this->db->trans_begin();
+
+		Events::trigger(
+			'lehreinheit_delete',
+			$addError,
+			$lehreinheit_id
+		);
+
+		$undosql = '';
+
+		$lehreinheit_gruppe_result = $this->LehreinheitgruppeModel->loadWhere(array('lehreinheit_id' => $lehreinheit_id));
+		if (hasData($lehreinheit_gruppe_result))
+		{
+			foreach (getData($lehreinheit_gruppe_result) as $row)
+			{
+				$values = [
+					$this->db->escape($row->lehreinheitgruppe_id),
+					$this->db->escape($row->lehreinheit_id),
+					$this->db->escape($row->studiengang_kz),
+					$this->db->escape($row->semester),
+					$this->db->escape($row->verband),
+					$this->db->escape($row->gruppe),
+					$this->db->escape($row->gruppe_kurzbz),
+					$this->db->escape($row->updateamum),
+					$this->db->escape($row->updatevon),
+					$this->db->escape($row->insertamum),
+					$this->db->escape($row->insertvon)
+				];
+
+				$undosql .= "INSERT INTO lehre.tbl_lehreinheitgruppe (
+						lehreinheitgruppe_id,
+						lehreinheit_id,
+						studiengang_kz,
+						semester,
+						verband,
+						gruppe,
+						gruppe_kurzbz,
+						updateamum,
+						updatevon,
+						insertamum,
+						insertvon
+					) VALUES (" . implode(', ', $values) . ");\n";
+			}
+
+			$lehreinheit_gruppe_delete_result = $this->LehreinheitgruppeModel->delete(array('lehreinheit_id' => $lehreinheit_id));
+
+			if (isError($lehreinheit_gruppe_delete_result))
+				$addError(getError($lehreinheit_gruppe_delete_result));
+		}
+
+		$lehreinheit_mitarbeiter_result = $this->LehreinheitmitarbeiterModel->loadWhere(array('lehreinheit_id' => $lehreinheit_id));
+		if (hasData($lehreinheit_mitarbeiter_result))
+		{
+			foreach (getData($lehreinheit_mitarbeiter_result) as $row)
+			{
+				$values = [
+					$this->db->escape($row->lehreinheit_id),
+					$this->db->escape($row->mitarbeiter_uid),
+					$this->db->escape($row->lehrfunktion_kurzbz),
+					$this->db->escape($row->planstunden),
+					$this->db->escape($row->stundensatz),
+					$this->db->escape($row->faktor),
+					$this->db->escape($row->anmerkung),
+					$this->db->escape($row->bismelden),
+					$this->db->escape($row->updateamum),
+					$this->db->escape($row->updatevon),
+					$this->db->escape($row->insertamum),
+					$this->db->escape($row->insertvon),
+					$this->db->escape($row->semesterstunden)
+				];
+
+				$undosql .= "INSERT INTO lehre.tbl_lehreinheitmitarbeiter (
+								lehreinheit_id,
+								mitarbeiter_uid,
+								lehrfunktion_kurzbz,
+								planstunden,
+								stundensatz,
+								faktor,
+								anmerkung,
+								bismelden,
+								updateamum,
+								updatevon,
+								insertamum,
+								insertvon,
+								semesterstunden
+							) VALUES (" . implode(', ', $values) . ");\n";
+			}
+
+			$lehreinheit_mitarbeiter_delete_result = $this->LehreinheitmitarbeiterModel->delete(array('lehreinheit_id' => $lehreinheit_id));
+			if (isError($lehreinheit_mitarbeiter_delete_result))
+				$addError(getError($lehreinheit_mitarbeiter_delete_result));
+		}
+
+		foreach (getData($lehreinheit) as $row)
+		{
+			$values = [
+				$this->db->escape($row->lehreinheit_id),
+				$this->db->escape($row->lehrveranstaltung_id),
+				$this->db->escape($row->studiensemester_kurzbz),
+				$this->db->escape($row->lehrfach_id),
+				$this->db->escape($row->lehrform_kurzbz),
+				$this->db->escape($row->stundenblockung),
+				$this->db->escape($row->wochenrythmus),
+				$this->db->escape($row->start_kw),
+				$this->db->escape($row->raumtyp),
+				$this->db->escape($row->raumtypalternativ),
+				$this->db->escape($row->sprache),
+				$this->db->escape($row->lehre),
+				$this->db->escape($row->anmerkung),
+				$this->db->escape($row->unr),
+				$this->db->escape($row->lvnr),
+				$this->db->escape($row->updateamum),
+				$this->db->escape($row->updatevon),
+				$this->db->escape($row->insertamum),
+				$this->db->escape($row->insertvon),
+			];
+
+			$undosql .= "INSERT INTO lehre.tbl_lehreinheit (
+						lehreinheit_id,
+						lehrveranstaltung_id,
+						studiensemester_kurzbz,
+						lehrfach_id,
+						lehrform_kurzbz,
+						stundenblockung,
+						wochenrythmus,
+						start_kw,
+						raumtyp,
+						raumtypalternativ,
+						sprache,
+						lehre,
+						anmerkung,
+						unr,
+						lvnr,
+						updateamum,
+						updatevon,
+						insertamum,
+						insertvon
+					) VALUES (" . implode(', ', $values) . ");\n";
+		}
+		$lehreinheit_result = $this->delete($lehreinheit_id);
+
+		$deleteSql = "DELETE FROM lehre.tbl_lehreinheitmitarbeiter WHERE lehreinheit_id = " . $this->db->escape($lehreinheit_id) ."; \n
+						DELETE FROM lehre.tbl_lehreinheitgruppe WHERE lehreinheit_id = " . $this->db->escape($lehreinheit_id) ."; \n
+						DELETE FROM lehre.tbl_lehreinheit WHERE lehreinheit_id = " . $this->db->escape($lehreinheit_id) .";";
+		if (isError($lehreinheit_result))
+			$addError($lehreinheit_result);
+
+		$log_result = $this->LogModel->insert([
+			'sql' => $deleteSql,
+			'sqlundo' => $undosql,
+			'beschreibung' => 'Lehreinheit loeschen - ' . $lehreinheit_id,
+			'mitarbeiter_uid' => getAuthUID(),
+		]);
+
+		if (isError($log_result))
+			$addError($log_result);
+
+		if (!empty($errorReasons))
+		{
+			$this->db->trans_rollback();
+			return error($errorReasons);
+		}
+
+		$this->db->trans_commit();
+		return success('Contract successfully updated.');
+	}
+
+	private function _getGruppenCTE()
+	{
+		return "gruppen AS (
+					SELECT
+						lehreinheit_id,
+						 STRING_AGG(
+								 CASE
+									 WHEN (tbl_lehreinheitgruppe.gruppe_kurzbz IS NULL OR tbl_lehreinheitgruppe.gruppe_kurzbz = '')
+										 THEN
+										 UPPER(tbl_studiengang.typ::varchar(1) || tbl_studiengang.kurzbz) ||
+										 COALESCE(TRIM(tbl_lehreinheitgruppe.semester::text), '') ||
+										 COALESCE(TRIM(tbl_lehreinheitgruppe.verband), '') ||
+										 COALESCE(TRIM(tbl_lehreinheitgruppe.gruppe), '')
+									 ELSE
+										 CASE
+											 WHEN NOT tbl_gruppe.direktinskription THEN tbl_lehreinheitgruppe.gruppe_kurzbz
+											 ELSE NULL
+											 END
+									 END,
+								 ' ' 
+									ORDER BY
+										UPPER(tbl_studiengang.typ::varchar(1) || tbl_studiengang.kurzbz),
+										COALESCE(TRIM(tbl_lehreinheitgruppe.semester::text), ''),
+										COALESCE(TRIM(tbl_lehreinheitgruppe.verband), ''),
+										COALESCE(TRIM(tbl_lehreinheitgruppe.gruppe), ''),
+										COALESCE(tbl_lehreinheitgruppe.gruppe_kurzbz, '')
+						 ) AS gruppen
+					 FROM lehre.tbl_lehreinheitgruppe
+						LEFT JOIN public.tbl_studiengang USING (studiengang_kz)
+						LEFT JOIN public.tbl_gruppe USING (gruppe_kurzbz)
+						JOIN lehreinheiten USING(lehreinheit_id)
+						GROUP BY lehreinheit_id
+				)";
+	}
+	private function _getLektorenCTE()
+	{
+		return "mitarbeiter AS (
+					 SELECT
+						tbl_lehreinheitmitarbeiter.lehreinheit_id,
+						STRING_AGG(m.kurzbz, ' ') AS lektoren,
+						STRING_AGG(tbl_person.vorname, ' ') AS vorname,
+						STRING_AGG(tbl_person.nachname, ' ') AS nachname,
+						STRING_AGG(tbl_lehreinheitmitarbeiter.semesterstunden::text, ' ') AS semesterstunden,
+						STRING_AGG(tbl_lehreinheitmitarbeiter.planstunden::text, ' ') AS le_planstunden
+					FROM lehre.tbl_lehreinheitmitarbeiter
+						JOIN public.tbl_mitarbeiter m USING (mitarbeiter_uid)
+						JOIN lehreinheiten USING(lehreinheit_id)
+						JOIN public.tbl_benutzer ON mitarbeiter_uid = uid
+						JOIN public.tbl_person ON tbl_benutzer.person_id = tbl_person.person_id
+					GROUP BY tbl_lehreinheitmitarbeiter.lehreinheit_id
+				)";
+	}
+
+	private function _getFachbereichCTE()
+	{
+		return "fachbereich AS (
+					SELECT
+						 CONCAT(tbl_organisationseinheit.bezeichnung, ' (',  tbl_organisationseinheit.organisationseinheittyp_kurzbz, ')') as bezeichnung,
+						 lehreinheiten.lehreinheit_id
+					 FROM public.tbl_organisationseinheit
+						JOIN lehre.tbl_lehrveranstaltung AS lehrfach ON tbl_organisationseinheit.oe_kurzbz = lehrfach.oe_kurzbz
+						JOIN lehre.tbl_lehreinheit ON lehrfach.lehrveranstaltung_id = tbl_lehreinheit.lehrfach_id
+						JOIN lehreinheiten ON tbl_lehreinheit.lehreinheit_id = lehreinheiten.lehreinheit_id
+				)";
+	}
+
+	private function _getTagsCTE()
+	{
+		$this->load->config('lvverwaltung');
+		$tags = $this->config->item('tags');
+
+		$whereTags = '';
+		if (is_array($tags) && !isEmptyArray($tags))
+		{
+			$tags = array_keys($tags);
+
+			foreach ($tags as $key => $tag)
+			{
+				$tags[$key] = $this->db->escape($tag);
+			}
+
+			$whereTags = " AND tbl_notiz_typ.typ_kurzbz IN (" . implode(",", $tags) . ")";
+		}
+
+		return "tag_data_agg AS (
+					SELECT
+						lehreinheit_id,
+						COALESCE(json_agg(tag ORDER BY done), '[]'::json) AS tags
+					FROM (
+							SELECT DISTINCT ON (public.tbl_notiz.notiz_id)
+								tbl_notiz.notiz_id AS id,
+								typ_kurzbz,
+								array_to_json(tbl_notiz_typ.bezeichnung_mehrsprachig)->>0 AS beschreibung,
+								text AS notiz,
+								style,
+								erledigt AS done,
+								lehreinheit_id
+							FROM public.tbl_notizzuordnung
+								JOIN public.tbl_notiz ON tbl_notizzuordnung.notiz_id = tbl_notiz.notiz_id
+								JOIN public.tbl_notiz_typ ON tbl_notiz.typ = tbl_notiz_typ.typ_kurzbz
+							WHERE lehreinheit_id IN (SELECT lehreinheit_id FROM lehreinheiten)"
+								. $whereTags.
+						") AS tag
+					GROUP BY lehreinheit_id
+				)";
+	}
+
 }
@@ -14,6 +14,7 @@ class Lehreinheitgruppe_model extends DB_Model
 		$this->load->model('organisation/studiengang_model', 'StudiengangModel');
 		$this->load->model('organisation/gruppe_model', 'GruppeModel');
 		$this->load->model('person/benutzergruppe_model', 'BenutzergruppeModel');
+		$this->load->model('ressource/stundenplandev_model', 'StundenplandevModel');
 	}

 	/**
@@ -23,7 +24,15 @@ class Lehreinheitgruppe_model extends DB_Model
 	 */
 	public function getDirectGroup($lehreinheit_id)
 	{
+		$this->addSelect('tbl_lehreinheitgruppe.*');
+		$this->addSelect('tbl_gruppe.*');
+		$this->addSelect('uid');
+		$this->addSelect('vorname');
+		$this->addSelect('nachname');
 		$this->addJoin('public.tbl_gruppe', 'gruppe_kurzbz');
+		$this->addJoin('public.tbl_benutzergruppe', 'gruppe_kurzbz', 'LEFT');
+		$this->addJoin('public.tbl_benutzer', 'uid', 'LEFT');
+		$this->addJoin('public.tbl_person', 'person_id', 'LEFT');
 		return $this->loadWhere(
 			array(
 			'tbl_gruppe.direktinskription' => true,
@@ -264,4 +273,209 @@ class Lehreinheitgruppe_model extends DB_Model
 		}
 		return $result;
 	}
+
+	public function addGroup($lehreinheit_id, $gid, $verband)
+	{
+		$lehreinheit = $this->LehreinheitModel->load($lehreinheit_id);
+
+		if (!hasData($lehreinheit))
+			return error ('No Lehreinheit found!');
+
+		if ($verband === false)
+		{
+			$gruppen_result = $this->GruppeModel->loadWhere(array('gid' => $gid));
+
+			if (!hasData($gruppen_result))
+				return error('No group found for gid ' . $gid);
+
+			$gruppen_array = getData($gruppen_result)[0];
+
+			if (!isEmptyString($gruppen_array->gruppe_kurzbz))
+			{
+				$this->db->where('trim(gruppe_kurzbz)', $gruppen_array->gruppe_kurzbz);
+			}
+			else
+			{
+				$this->db->group_start();
+				$this->db->where("trim(gruppe_kurzbz) = ''");
+				$this->db->or_where("gruppe_kurzbz IS NULL");
+				$this->db->group_end();
+			}
+		}
+		else if ($verband === true)
+		{
+			$gruppen_result = $this->LehrverbandModel->loadWhere(array('gid' => $gid));
+
+			if (!hasData($gruppen_result))
+				return error('No group found for gid ' . $gid);
+
+			$gruppen_array = getData($gruppen_result)[0];
+
+			if (!isEmptyString($gruppen_array->verband))
+			{
+				$this->db->where('verband', $gruppen_array->verband);
+			}
+			else
+			{
+				$this->db->group_start();
+				$this->db->where("trim(verband) = ''");
+				$this->db->or_where("verband IS NULL");
+				$this->db->group_end();
+			}
+
+			if (!isEmptyString($gruppen_array->gruppe))
+			{
+				$this->db->where('gruppe', $gruppen_array->gruppe);
+			}
+			else
+			{
+				$this->db->group_start();
+				$this->db->where("trim(gruppe) = ''");
+				$this->db->or_where("gruppe IS NULL");
+				$this->db->group_end();
+			}
+		}
+		else
+			return error('Wrong type of verband');
+
+		$this->db->where('lehreinheit_id', $lehreinheit_id);
+		$this->db->where('studiengang_kz', $gruppen_array->studiengang_kz);
+
+		if (!isEmptyString($gruppen_array->semester))
+		{
+			$this->db->where('semester', $gruppen_array->semester);
+		}
+		else
+		{
+			$this->db->group_start();
+			$this->db->where("semester = ''");
+			$this->db->or_where("semester IS NULL");
+			$this->db->group_end();
+		}
+
+		$exist_result = $this->load();
+
+		if (!hasData($exist_result))
+		{
+			$new_group_result = $this->insert(array(
+				'lehreinheit_id' => $lehreinheit_id,
+				'studiengang_kz' => $gruppen_array->studiengang_kz,
+				'gruppe_kurzbz' => isset($gruppen_array->gruppe_kurzbz) ? $gruppen_array->gruppe_kurzbz : null,
+				'semester' => $gruppen_array->semester,
+				'verband' => isset($gruppen_array->verband) && !isEmptyString($gruppen_array->verband) ? $gruppen_array->verband : null,
+				'gruppe' => isset($gruppen_array->gruppe) && !isEmptyString($gruppen_array->gruppe) ? $gruppen_array->gruppe : null,
+				'insertamum' => date('Y-m-d H:i:s'),
+				'insertvon' => getAuthUID()
+			));
+
+			if (isError($new_group_result))
+				return error('Error when adding Group');
+
+			return success('Group assigned successfully to Lehreinheit');
+		}
+		else
+			return error($this->p->t('lehre', 'grpbereitszugeteilt'));
+	}
+
+	public function deleteGroup($lehreinheit_id, $lehreinheitgruppe_id)
+	{
+		$lehreinheit = $this->LehreinheitModel->load($lehreinheit_id);
+
+		if (!hasData($lehreinheit))
+			return error ('No Lehreinheit found!');
+
+		$lehreinheitgruppe = $this->load($lehreinheitgruppe_id);
+
+		if (!hasData($lehreinheitgruppe))
+			return error ('No Lehreinheitgruppe found!');
+
+		$this->addSelect('stundenplandev_id');
+		$this->addJoin('lehre.tbl_stundenplandev',
+			"tbl_stundenplandev.lehreinheit_id = tbl_lehreinheitgruppe.lehreinheit_id
+				AND tbl_stundenplandev.studiengang_kz = tbl_lehreinheitgruppe.studiengang_kz
+				AND tbl_stundenplandev.semester = tbl_lehreinheitgruppe.semester
+				AND trim(COALESCE(tbl_stundenplandev.verband, '')) = trim(COALESCE(tbl_lehreinheitgruppe.verband, ''))
+				AND trim(COALESCE(tbl_stundenplandev.gruppe, '')) = trim(COALESCE(tbl_lehreinheitgruppe.gruppe, ''))
+				AND trim(COALESCE(tbl_stundenplandev.gruppe_kurzbz, '')) = trim(COALESCE(tbl_lehreinheitgruppe.gruppe_kurzbz, ''))"
+		);
+		$stundenplan_result = $this->loadWhere(array('tbl_lehreinheitgruppe.lehreinheitgruppe_id' => $lehreinheitgruppe_id));
+
+		if (hasData($stundenplan_result))
+			return error($this->p->t('lehre', 'grpbereitsverplant'));
+
+		$delete_result = $this->delete($lehreinheitgruppe_id);
+
+		if (isError($delete_result))
+			return error('Error deleting Group');
+
+		return success('Group deleted');
+	}
+
+	public function getByLehreinheit($lehreinheit_id)
+	{
+		$lehreinheit = $this->LehreinheitModel->load($lehreinheit_id);
+
+		if (!hasData($lehreinheit))
+			return error ('No Lehreinheit found!');
+
+		$this->addSelect('tbl_lehreinheitgruppe.*');
+		$this->addSelect('tbl_gruppe.direktinskription');
+		$this->addSelect('tbl_gruppe.gruppe_kurzbz');
+		$this->addSelect("CASE 
+									WHEN tbl_lehreinheitgruppe.gruppe_kurzbz IS NULL THEN 
+										COALESCE (
+											UPPER(tbl_studiengang.typ || tbl_studiengang.kurzbz) || 
+											COALESCE(tbl_lehreinheitgruppe.semester::varchar, '') || 
+											COALESCE(tbl_lehreinheitgruppe.verband::varchar, '') || 
+											COALESCE(tbl_lehreinheitgruppe.gruppe, ''), 
+										'')
+									ELSE tbl_lehreinheitgruppe.gruppe_kurzbz
+								END AS bezeichnung");
+		$this->addSelect("CASE 
+									WHEN tbl_lehreinheitgruppe.gruppe_kurzbz IS NULL THEN 
+										(
+											SELECT bezeichnung
+											FROM public.tbl_lehrverband
+											WHERE studiengang_kz = tbl_lehreinheitgruppe.studiengang_kz
+												AND semester = tbl_lehreinheitgruppe.semester
+												AND verband = tbl_lehreinheitgruppe.verband
+												AND gruppe = tbl_lehreinheitgruppe.gruppe
+											LIMIT 1
+										) 
+									ELSE tbl_gruppe.beschreibung
+								END AS beschreibung");
+		$this->addSelect("CASE 
+									WHEN tbl_lehreinheitgruppe.gruppe_kurzbz IS NULL THEN 
+										(
+											SELECT EXISTS (
+												SELECT 1 
+												FROM lehre.tbl_stundenplandev
+												WHERE lehreinheit_id = tbl_lehreinheitgruppe.lehreinheit_id
+													AND studiengang_kz = tbl_lehreinheitgruppe.studiengang_kz
+													AND semester = tbl_lehreinheitgruppe.semester
+													AND TRIM(COALESCE(verband, '')) = TRIM(tbl_lehreinheitgruppe.verband)
+													AND TRIM(COALESCE(gruppe, '')) = TRIM(tbl_lehreinheitgruppe.gruppe)
+													AND (gruppe_kurzbz IS NULL OR gruppe_kurzbz = '')
+											)
+										)
+									ELSE 
+										(
+											SELECT EXISTS (
+												SELECT 1
+												FROM lehre.tbl_stundenplandev
+												WHERE lehreinheit_id = tbl_lehreinheitgruppe.lehreinheit_id
+													AND gruppe_kurzbz = tbl_lehreinheitgruppe.gruppe_kurzbz
+											)
+										)
+								END AS verplant");
+		$this->addJoin('tbl_studiengang', 'studiengang_kz', 'LEFT');
+		$this->addJoin('public.tbl_gruppe', 'gruppe_kurzbz', 'LEFT');
+
+		$this->db->where('lehreinheit_id', $lehreinheit_id);
+		$this->db->group_start()
+			->where('tbl_gruppe.direktinskription !=', true)
+			->or_where('tbl_gruppe.direktinskription IS NULL')
+			->group_end();
+		return $this->load();
+	}
 }
@@ -10,6 +10,14 @@ class Lehreinheitmitarbeiter_model extends DB_Model
 		parent::__construct();
 		$this->dbTable = 'lehre.tbl_lehreinheitmitarbeiter';
 		$this->pk = array('mitarbeiter_uid', 'lehreinheit_id');
+		$this->hasSequence = false;
+
+		$this->load->model('accounting/Vertrag_model', 'VertragModel');
+		$this->load->model('ressource/stundenplandev_model', 'StundenplandevModel');
+		$this->load->model('ressource/stundenplan_model', 'StundenplanModel');
+		$this->load->model('organisation/Studiengang_model', 'StudiengangModel');
+		$this->load->model('organisation/Organisationseinheit_model', 'OrganisationseinheitModel');
+		$this->load->model('ressource/mitarbeiter_model', 'MitarbeiterModel');
 	}

    /**
@@ -75,4 +83,67 @@ class Lehreinheitmitarbeiter_model extends DB_Model
        ]);
    }

+	public function getLektorenByLe($lehreinheit_id)
+	{
+		$this->addSelect('vorname, nachname, tbl_lehreinheitmitarbeiter.*, stundenplan.verplant');
+		$this->addJoin('tbl_benutzer', 'uid = mitarbeiter_uid');
+		$this->addJoin('tbl_person', 'person_id');
+
+		$this->addJoin('(
+			SELECT 1 as verplant, lehreinheit_id, mitarbeiter_uid
+			FROM lehre.tbl_stundenplandev
+			GROUP BY lehreinheit_id, mitarbeiter_uid
+			
+		) stundenplan', 'stundenplan.mitarbeiter_uid = tbl_lehreinheitmitarbeiter.mitarbeiter_uid AND stundenplan.lehreinheit_id = tbl_lehreinheitmitarbeiter.lehreinheit_id', 'LEFT');
+
+		return $this->loadWhere(array('tbl_lehreinheitmitarbeiter.lehreinheit_id' => $lehreinheit_id));
+	}
+
+	public function getByLeLektor($lehreinheit_id, $mitarbeiter_uid)
+	{
+		$this->addSelect('vorname, nachname, tbl_lehreinheitmitarbeiter.*');
+		$this->addJoin('tbl_benutzer', 'uid = mitarbeiter_uid');
+		$this->addJoin('tbl_person', 'person_id');
+		return $this->loadWhere(array('tbl_lehreinheitmitarbeiter.lehreinheit_id' => $lehreinheit_id, 'tbl_lehreinheitmitarbeiter.mitarbeiter_uid' => $mitarbeiter_uid));
+	}
+
+	public function deleteLektorFromLe($lehreinheit_id, $mitarbeiter_uid)
+	{
+		if (defined('FAS_LV_LEKTORINNENZUTEILUNG_VERTRAGSDETAILS_ANZEIGEN') && FAS_LV_LEKTORINNENZUTEILUNG_VERTRAGSDETAILS_ANZEIGEN)
+		{
+			$vertrag_result = $this->VertragModel->getVertrag($mitarbeiter_uid, $lehreinheit_id);
+
+			if (hasData($vertrag_result))
+				return error("Loeschen nur nach Stornierung des Vertrags möglich");
+		}
+
+		$stundenplandev_result = $this->StundenplandevModel->loadWhere(array('lehreinheit_id' => $lehreinheit_id, 'mitarbeiter_uid' => $mitarbeiter_uid));
+		$stundenplan_result = $this->StundenplanModel->loadWhere(array('lehreinheit_id' => $lehreinheit_id, 'mitarbeiter_uid' => $mitarbeiter_uid));
+
+		if (hasData($stundenplandev_result) || hasData($stundenplan_result))
+			return error("Diese/r LektorIn kann nicht gelöscht werden da er schon verplant ist");
+
+		$result = $this->loadWhere(array('lehreinheit_id' => $lehreinheit_id, 'mitarbeiter_uid' => $mitarbeiter_uid));
+
+		if (hasData($result))
+		{
+			$le_mitarbeiter_array = getData($result)[0];
+
+			if ($le_mitarbeiter_array->vertrag_id !== null)
+			{
+				$vertrag_result = $this->VertragModel->deleteVertrag($le_mitarbeiter_array->vertrag_id);
+				if (isError($vertrag_result))
+					return $vertrag_result;
+			}
+
+			$delete_result = $this->delete(array('lehreinheit_id' => $lehreinheit_id, 'mitarbeiter_uid' => $mitarbeiter_uid));
+
+			if (isError($delete_result))
+				return $delete_result;
+
+			return success($delete_result);
+		}
+	}
+
+
 }
@@ -316,8 +316,8 @@ class Lehrveranstaltung_model extends DB_Model
 			(SELECT status_kurzbz FROM public.tbl_prestudentstatus WHERE prestudent_id=tbl_student.prestudent_id ORDER BY datum DESC, insertamum DESC, ext_id DESC LIMIT 1) as status,
 			tbl_bisio.bisio_id, tbl_bisio.von, tbl_bisio.bis, tbl_student.studiengang_kz AS stg_kz_student,
 			tbl_zeugnisnote.note, tbl_mitarbeiter.mitarbeiter_uid, tbl_person.matr_nr, tbl_benutzer.uid,
-			UPPER(tbl_studiengang.typ::varchar(1) || tbl_studiengang.kurzbz) as kuerzel, tbl_studiengang.orgform_kurzbz, vw_student_lehrveranstaltung.semester, vw_student_lehrveranstaltung.studiensemester_kurzbz, vw_student_lehrveranstaltung.bezeichnung
-
+			UPPER(tbl_studiengang.typ::varchar(1) || tbl_studiengang.kurzbz) as kuerzel, tbl_studiengang.orgform_kurzbz, vw_student_lehrveranstaltung.semester, vw_student_lehrveranstaltung.studiensemester_kurzbz, vw_student_lehrveranstaltung.bezeichnung,
+			tbl_student.prestudent_id
 		FROM
 			campus.vw_student_lehrveranstaltung
 			JOIN public.tbl_benutzer USING(uid)
@@ -386,6 +386,37 @@ class Lehrveranstaltung_model extends DB_Model

 		return $this->execQuery($query, array($lehrveranstaltung_id, $studiensemester_kurzbz));
 	}
+
+	/**
+	 * Get LV-Leitung of given Lehrveranstaltung ID and Studiensemester.
+	 *
+	 * @param $lehrveranstaltung_id
+	 * @param $studiensemester
+	 * @return array|stdClass|null
+	 */
+	public function getLvLeitung($lehrveranstaltung_id, $studiensemester)
+	{
+		$params = [$lehrveranstaltung_id, $studiensemester];
+
+		$qry = "
+			SELECT
+				vorname, nachname, mitarbeiter_uid, lehrfunktion_kurzbz
+			FROM
+				lehre.tbl_lehreinheit
+				JOIN lehre.tbl_lehreinheitmitarbeiter lema USING (lehreinheit_id)
+				JOIN public.tbl_benutzer b ON b.uid = lema.mitarbeiter_uid
+				JOIN public.tbl_person p using (person_id) 
+			WHERE
+				tbl_lehreinheit.lehrveranstaltung_id= ?
+				AND tbl_lehreinheit.studiensemester_kurzbz = ?
+				AND lehrfunktion_kurzbz = 'LV-Leitung'
+            ORDER BY 
+                lema.insertamum DESC
+			LIMIT 1
+		";
+
+		return $this->execQuery($qry, $params);
+	}
 	/**
 	 * Gets all Leiter of Lehrveranstaltungsorganisationseinheit
 	 * @param $lehrveranstaltung_id
@@ -1019,4 +1050,297 @@ class Lehrveranstaltung_model extends DB_Model

 		return $this->execQuery($qry, $params);
 	}
+
+	public function getLvsByOrganization($oe_kurzbz)
+	{
+		$qry="
+			SELECT
+				distinct on (lehrveranstaltung_id)
+				tbl_lehrveranstaltung.studiengang_kz as lv_studiengang_kz, tbl_lehrveranstaltung.semester as lv_semester,
+				tbl_lehrveranstaltung.kurzbz as lv_kurzbz, tbl_lehrveranstaltung.bezeichnung as lv_bezeichnung, tbl_lehrveranstaltung.ects as lv_ects,
+				tbl_lehrveranstaltung.lehreverzeichnis as lv_lehreverzeichnis, tbl_lehrveranstaltung.planfaktor as lv_planfaktor,
+				tbl_lehrveranstaltung.planlektoren as lv_planlektoren, tbl_lehrveranstaltung.planpersonalkosten as lv_planpersonalkosten,
+				tbl_lehrveranstaltung.plankostenprolektor as lv_plankostenprolektor, tbl_lehrveranstaltung.orgform_kurzbz as lv_orgform_kurzbz,
+				tbl_lehrveranstaltung.lehrveranstaltung_id,
+				tbl_lehrveranstaltung.lehrform_kurzbz as lehrform_kurzbz,
+				tbl_lehrveranstaltung.lehrform_kurzbz as lv_lehrform_kurzbz,
+				tbl_lehrveranstaltung.bezeichnung_english as lv_bezeichnung_english,
+				tbl_lehrveranstaltung.studiengang_kz, tbl_lehrveranstaltung.semester, tbl_lehrveranstaltung.anmerkung, tbl_lehrveranstaltung.sprache, tbl_lehrveranstaltung.semesterstunden,
+				tbl_lehrveranstaltung.lehre, tbl_lehrveranstaltung.aktiv,
+				'' as studienplan_id, '' as studienplan_bezeichnung, tbl_lehrveranstaltung.lehrtyp_kurzbz
+			FROM
+				lehre.tbl_lehrveranstaltung
+			WHERE
+				tbl_lehrveranstaltung.oe_kurzbz= ?
+				AND tbl_lehrveranstaltung.aktiv
+		";
+
+		return $this->execReadOnlyQuery($qry, array($oe_kurzbz));
+	}
+
+	public function getLvsByFachbereich($fachbereich, $studiensemester_kurbz, $mitarbeiter_uid = null)
+	{
+		$qry = "";
+		if (!is_null($mitarbeiter_uid))
+		{
+			$qry = $this->getLvsFromStudienplanByEmp();
+			$params = array($fachbereich, $studiensemester_kurbz);
+		}
+
+		$qry .= "SELECT
+					distinct on(lehrveranstaltung_id)
+					lv_studiengang_kz, lv_semester, lv_kurzbz, lv_bezeichnung, lv_ects,
+					lv_lehreverzeichnis, lv_planfaktor, lv_planlektoren, lv_planpersonalkosten,
+					lv_plankostenprolektor, lv_orgform_kurzbz, lehrveranstaltung_id,
+					lehrform_kurzbz, lv_lehrform_kurzbz, lv_bezeichnung_english, studiengang_kz, semester, anmerkung, sprache, semesterstunden,
+					lehre, aktiv,
+					'' as studienplan_id, '' as studienplan_bezeichnung,
+					(SELECT lehrtyp_kurzbz FROM lehre.tbl_lehrveranstaltung WHERE lehrveranstaltung_id=vw_lehreinheit.lehrveranstaltung_id) as lehrtyp_kurzbz
+				FROM
+					campus.vw_lehreinheit
+				WHERE studiensemester_kurzbz = ?
+				AND fachbereich_kurzbz = ?";
+
+		$params[] = array($studiensemester_kurbz, $fachbereich);
+
+		if (!is_null($mitarbeiter_uid))
+		{
+			$qry .= " AND mitarbeiter_uid = ?";
+			$params[] = $mitarbeiter_uid;
+		}
+		else
+		{
+			$qry.=" AND lehrveranstaltung_id NOT IN (SELECT lehrveranstaltung_id
+					FROM
+						lehre.tbl_lehrveranstaltung
+						JOIN lehre.tbl_studienplan_lehrveranstaltung USING(lehrveranstaltung_id)
+						JOIN lehre.tbl_studienplan USING(studienplan_id)
+						JOIN lehre.tbl_studienordnung USING(studienordnung_id)
+						JOIN lehre.tbl_studienplan_semester USING(studienplan_id)
+					WHERE
+						tbl_lehrveranstaltung.oe_kurzbz=(Select oe_kurzbz from public.tbl_fachbereich where fachbereich_kurzbz= ?)
+						AND tbl_studienplan_semester.studiensemester_kurzbz= ?";
+
+			$params[] = array($fachbereich, $studiensemester_kurbz);
+		}
+
+		return $this->execReadOnlyQuery($qry, $params);
+	}
+
+	private function getLvsFromStudienplanByEmp()
+	{
+		return "
+		SELECT
+				distinct on (lehrveranstaltung_id)
+				tbl_lehrveranstaltung.studiengang_kz as lv_studiengang_kz, 
+				tbl_lehrveranstaltung.semester as lv_semester,
+				tbl_lehrveranstaltung.kurzbz as lv_kurzbz, 
+				tbl_lehrveranstaltung.bezeichnung as lv_bezeichnung,
+				tbl_lehrveranstaltung.ects as lv_ects,
+				tbl_lehrveranstaltung.lehreverzeichnis as lv_lehreverzeichnis,
+				tbl_lehrveranstaltung.planfaktor as lv_planfaktor,
+				tbl_lehrveranstaltung.planlektoren as lv_planlektoren,
+				tbl_lehrveranstaltung.planpersonalkosten as lv_planpersonalkosten,
+				tbl_lehrveranstaltung.plankostenprolektor as lv_plankostenprolektor,
+				tbl_lehrveranstaltung.orgform_kurzbz as lv_orgform_kurzbz,
+				tbl_lehrveranstaltung.lehrveranstaltung_id,
+				tbl_lehrveranstaltung.lehrform_kurzbz as lehrform_kurzbz,
+				tbl_lehrveranstaltung.lehrform_kurzbz as lv_lehrform_kurzbz,
+				tbl_lehrveranstaltung.bezeichnung_english as lv_bezeichnung_english,
+				tbl_lehrveranstaltung.studiengang_kz,
+				tbl_studienplan_lehrveranstaltung.semester,
+				tbl_lehrveranstaltung.anmerkung,
+				tbl_lehrveranstaltung.sprache,
+				tbl_lehrveranstaltung.semesterstunden,
+				tbl_lehrveranstaltung.lehre,
+				tbl_lehrveranstaltung.aktiv,
+				tbl_studienplan.studienplan_id::text,
+				tbl_studienplan.bezeichnung as studienplan_bezeichnung,
+				tbl_lehrveranstaltung.lehrtyp_kurzbz
+			FROM
+				lehre.tbl_lehrveranstaltung
+				JOIN lehre.tbl_studienplan_lehrveranstaltung USING(lehrveranstaltung_id)
+				JOIN lehre.tbl_studienplan USING(studienplan_id)
+				JOIN lehre.tbl_studienordnung USING(studienordnung_id)
+				JOIN lehre.tbl_studienplan_semester USING(studienplan_id)
+			WHERE
+				tbl_lehrveranstaltung.oe_kurzbz=(Select oe_kurzbz from public.tbl_fachbereich where fachbereich_kurzbz= ?)
+				AND tbl_studienplan_semester.studiensemester_kurzbz = ?
+				AND tbl_lehrveranstaltung.aktiv
+			UNION
+		";
+	}
+
+	public function getLvsByStudiengang($studienplan_ids, $placeholders, $only_ids, $studiengang_kz, $studiensemester_kurzbz, $semester = null, $verband = null)
+	{
+		$qry = "";
+		$params = array();
+
+		if (!empty($studienplan_ids))
+		{
+			$qry = $this->getLvsFromStudienplanByStudienplanID($placeholders);
+			$params = $studienplan_ids;
+		}
+
+		$qry .= "
+			SELECT DISTINCT on(lehrveranstaltung_id) lehrveranstaltung_id, 
+				tbl_lehrveranstaltung.kurzbz as lv_kurzbz,
+				tbl_lehrveranstaltung.bezeichnung as lv_bezeichnung,
+				tbl_lehrveranstaltung.bezeichnung_english as lv_bezeichnung_english,
+				studiengang_kz,
+				semester,
+				tbl_lehrveranstaltung.sprache,
+				ects as lv_ects,
+				semesterstunden,
+				tbl_lehrveranstaltung.anmerkung,
+				tbl_lehrveranstaltung.lehre,
+				lehreverzeichnis as lv_lehreverzeichnis,
+				tbl_lehrveranstaltung.aktiv,
+				planfaktor as lv_planfaktor,
+				planlektoren as lv_planlektoren,
+				planpersonalkosten as lv_planpersonalkosten,
+				plankostenprolektor as lv_plankostenprolektor,
+				tbl_lehrveranstaltung.lehrform_kurzbz as lv_lehrform_kurzbz,
+				tbl_lehrveranstaltung.orgform_kurzbz,
+				''::text as studienplan_id,
+				'' as studienplan_bezeichnung,
+				'' as studienplan_lehrveranstaltung_id_parent,
+				tbl_lehrveranstaltung.lehrtyp_kurzbz,
+				UPPER(CONCAT(tbl_studiengang.typ,tbl_studiengang.kurzbz)) as studiengang
+			FROM lehre.tbl_lehrveranstaltung 
+				JOIN lehre.tbl_lehreinheit USING (lehrveranstaltung_id)
+				JOIN public.tbl_studiengang USING(studiengang_kz)
+				WHERE studiengang_kz = ?
+					AND studiensemester_kurzbz = ?
+		";
+
+		$params[] = $studiengang_kz;
+		$params[] = $studiensemester_kurzbz;
+		if (!is_null($semester))
+		{
+			$qry .= ' AND semester = ?';
+			$params[] = $semester;
+		}
+		if (!is_null($verband))
+		{
+			$qry .= ' AND (tbl_lehrveranstaltung.orgform_kurzbz = ? OR tbl_lehrveranstaltung.orgform_kurzbz IS NULL)';
+			$params[] = $verband;
+		}
+
+		if (!empty($only_ids))
+		{
+
+			$qry .= ' AND NOT EXISTS (SELECT 1 FROM lehre.tbl_studienplan_lehrveranstaltung where studienplan_id IN ?
+						AND lehrveranstaltung_id = tbl_lehrveranstaltung.lehrveranstaltung_id AND tbl_lehrveranstaltung.aktiv)';
+
+			$params[] = $only_ids;
+		}
+
+		return $this->execReadOnlyQuery($qry, $params);
+	}
+	private function getLvsFromStudienplanByStudienplanID($placeholders)
+	{
+		return "
+		SELECT
+				lehrveranstaltung_id, tbl_lehrveranstaltung.kurzbz as lv_kurzbz, tbl_lehrveranstaltung.bezeichnung as lv_bezeichnung, bezeichnung_english as lv_bezeichnung_english, studiengang_kz,
+				tbl_studienplan_lehrveranstaltung.semester, tbl_lehrveranstaltung.sprache,
+				ects as lv_ects, semesterstunden, anmerkung, lehre, lehreverzeichnis as lv_lehreverzeichnis, tbl_lehrveranstaltung.aktiv,
+				planfaktor as lv_planfaktor, planlektoren as lv_planlektoren, planpersonalkosten as lv_planpersonalkosten,
+				plankostenprolektor as lv_plankostenprolektor, lehrform_kurzbz as lv_lehrform_kurzbz, tbl_lehrveranstaltung.orgform_kurzbz,
+				tbl_studienplan_lehrveranstaltung.studienplan_id::text as studienplan_id, tbl_studienplan.bezeichnung as studienplan_bezeichnung, tbl_studienplan_lehrveranstaltung.studienplan_lehrveranstaltung_id_parent::text,
+				tbl_lehrveranstaltung.lehrtyp_kurzbz, UPPER(CONCAT(tbl_studiengang.typ,tbl_studiengang.kurzbz)) as studiengang
+			FROM
+			    lehre.tbl_lehrveranstaltung
+				JOIN lehre.tbl_studienplan_lehrveranstaltung USING(lehrveranstaltung_id)
+				JOIN lehre.tbl_studienplan USING(studienplan_id)
+				JOIN tbl_studiengang USING(studiengang_kz)
+			WHERE
+				tbl_lehrveranstaltung.aktiv AND ((studienplan_id, tbl_studienplan_lehrveranstaltung.semester) IN ( " . implode(',', $placeholders) . "))
+			UNION
+		";
+	}
+
+	public function getAllOe($lv_id)
+	{
+		$qry = "SELECT DISTINCT oe_kurzbz
+				FROM lehre.tbl_studienplan_lehrveranstaltung
+					JOIN lehre.tbl_studienplan USING(studienplan_id)
+					JOIN lehre.tbl_studienordnung USING(studienordnung_id)
+					JOIN public.tbl_studiengang USING(studiengang_kz)
+				WHERE lehrveranstaltung_id = ?
+
+				UNION
+
+				(
+					SELECT oe_kurzbz
+					FROM public.tbl_studiengang 
+					WHERE studiengang_kz = (
+						SELECT tbl_lehrveranstaltung.studiengang_kz 
+						FROM lehre.tbl_lehrveranstaltung 
+						WHERE lehrveranstaltung_id = ?
+					)
+				)
+			";
+
+		$params = array($lv_id, $lv_id);
+
+		return $this->execReadOnlyQuery($qry, $params);
+	}
+
+	/**
+	 * Gets Lehrveranstaltungen for a student, as needed for a Projektarbeit.
+	 * @param student_uid
+	 * @param studiengang_kz optional, all Lvs of this Studiengang will be included 
+	 * @param additional_lehrveranstaltung_id optional, this lv will be added to result
+	 * @return object success or error
+	 */
+	public function getLvsForProjektarbeit($student_uid, $studiengang_kz = null, $additional_lehrveranstaltung_id = null)
+	{
+		$params = array($student_uid, $student_uid);
+
+		$qry = "
+			SELECT *
+			FROM
+				lehre.tbl_lehrveranstaltung
+			WHERE
+				(
+					lehrveranstaltung_id IN (
+
+						SELECT
+							lehrveranstaltung_id
+						FROM
+							campus.vw_student_lehrveranstaltung
+						WHERE
+							uid=?
+
+						UNION
+
+						SELECT
+							lehrveranstaltung_id
+						FROM
+							lehre.tbl_zeugnisnote
+						WHERE
+							student_uid=?
+					)";
+
+		if (isset($studiengang_kz))
+		{
+			$params[] = $studiengang_kz;
+			$qry .= " OR (studiengang_kz = ? AND semester IS NOT NULL)";
+		}
+
+		if (isset($additional_lehrveranstaltung_id))
+		{
+			$params[] = $additional_lehrveranstaltung_id;
+			$qry .= " OR lehrveranstaltung_id = ?";
+		}
+
+		$qry .= "
+				)
+				AND projektarbeit = TRUE
+			ORDER BY
+				semester, bezeichnung";
+
+		return $this->execQuery($qry, $params);
+	}
 }
@@ -11,4 +11,12 @@ class Note_model extends DB_Model
 		$this->dbTable = 'lehre.tbl_note';
 		$this->pk = 'note';
 	}
+
+	public function getAllActive() {
+		$qry ="SELECT *
+			FROM lehre.tbl_note
+			WHERE aktiv = true";
+
+		return $this->execReadOnlyQuery($qry);
+	}
 }
@@ -60,5 +60,58 @@ class Paabgabe_model extends DB_Model

 		return $this->execReadOnlyQuery($qry, array($person_id));
 	}
+
+	public function findAbgabenNewOrUpdatedSince($interval, $relevantTypes)
+	{
+
+		$query = "SELECT projektarbeit_id, paabgabe_id, paabgabetyp_kurzbz, fixtermin, datum, campus.tbl_paabgabe.kurzbz, campus.tbl_paabgabetyp.bezeichnung, campus.tbl_paabgabe.abgabedatum,
+			   campus.tbl_paabgabe.insertvon, campus.tbl_paabgabe.insertamum, campus.tbl_paabgabe.updatevon, campus.tbl_paabgabe.updateamum,
+			   campus.tbl_paabgabe.note, upload_allowed, beurteilungsnotiz, student_uid, tbl_projektarbeit.note, lehre.tbl_projektarbeit.titel,
+			   UPPER(tbl_studiengang.typ) as stgtyp, UPPER(tbl_studiengang.kurzbz) as stgkz, public.tbl_studiengang.studiengang_kz,
+			   public.tbl_studiengang.oe_kurzbz as stg_oe_kurzbz, tbl_lehreinheit.studiensemester_kurzbz,
+			   public.tbl_person.anrede, public.tbl_person.titelpre, public.tbl_person.vorname, public.tbl_person.nachname, public.tbl_person.titelpost
+		FROM campus.tbl_paabgabe
+				 JOIN campus.tbl_paabgabetyp USING (paabgabetyp_kurzbz)
+				 JOIN lehre.tbl_projektarbeit USING (projektarbeit_id)
+				 JOIN lehre.tbl_lehreinheit using(lehreinheit_id)
+				 JOIN lehre.tbl_lehrveranstaltung using(lehrveranstaltung_id)
+				 JOIN public.tbl_studiengang on(lehre.tbl_lehrveranstaltung.studiengang_kz = public.tbl_studiengang.studiengang_kz)
+				 JOIN public.tbl_benutzer ON (public.tbl_benutzer.uid = student_uid)
+				 JOIN public.tbl_person USING (person_id)
+		
+		WHERE (campus.tbl_paabgabe.insertamum >= NOW() - INTERVAL ?
+		   OR campus.tbl_paabgabe.updateamum >= NOW() - INTERVAL ?)
+		   AND campus.tbl_paabgabe.paabgabetyp_kurzbz IN ?";
+
+		return $this->execQuery($query, [$interval, $interval, $relevantTypes]);
+	}
+
+	public function findAbgabenNewOrUpdatedSinceByAbgabedatum($interval) {
+
+		$query = "SELECT projektarbeit_id, paabgabe_id, paabgabetyp_kurzbz, fixtermin, datum, kurzbz, campus.tbl_paabgabetyp.bezeichnung, campus.tbl_paabgabe.abgabedatum,
+						campus.tbl_paabgabe.insertvon, campus.tbl_paabgabe.insertamum, campus.tbl_paabgabe.updatevon, campus.tbl_paabgabe.updateamum,
+						campus.tbl_paabgabe.note, upload_allowed, beurteilungsnotiz, student_uid, tbl_projektarbeit.note, lehre.tbl_projektarbeit.titel,
+						lehre.tbl_projektbetreuer.betreuerart_kurzbz, lehre.tbl_projektbetreuer.person_id,
+						public.tbl_person.anrede, public.tbl_person.titelpre, public.tbl_person.vorname, public.tbl_person.nachname, public.tbl_person.titelpost
+				
+				FROM campus.tbl_paabgabe 
+					JOIN campus.tbl_paabgabetyp USING (paabgabetyp_kurzbz)
+					JOIN lehre.tbl_projektarbeit USING (projektarbeit_id)
+					JOIN lehre.tbl_projektbetreuer USING (projektarbeit_id)
+					JOIN public.tbl_benutzer ON (public.tbl_benutzer.uid = student_uid)
+				 	JOIN public.tbl_person ON (public.tbl_benutzer.person_id = public.tbl_person.person_id)
+				
+				WHERE campus.tbl_paabgabe.abgabedatum IS NOT NULL 
+				AND campus.tbl_paabgabe.abgabedatum >= NOW() - INTERVAL ?
+				ORDER BY abgabedatum DESC
+	";
+
+		return $this->execQuery($query, [$interval]);
+	}
 	
+	public function loadByIDs($paabgabe_ids) {
+		$qry = "SELECT * FROM campus.tbl_paabgabe WHERE paabgabe_id IN ?";
+		
+		return $this->execReadOnlyQuery($qry, [$paabgabe_ids]);
+	}
 }
@@ -11,4 +11,10 @@ class Paabgabetyp_model extends DB_Model
 		$this->dbTable = 'campus.tbl_paabgabetyp';
 		$this->pk = 'paabgabetyp_kurzbz';
 	}
+	
+	public function getAll() {
+		$qry = "SELECT * FROM campus.tbl_paabgabetyp ORDER BY bezeichnung";
+
+		return $this->execReadOnlyQuery($qry);
+	}
 }
@@ -24,16 +24,28 @@ class Projektarbeit_model extends DB_Model
 	public function getProjektarbeit($student_uid, $studiengang_kz = null, $studiensemester_kurzbz = null, $projekttyp = null, $final = null)
 	{
 		$qry = "SELECT
-					tbl_projektarbeit.* , tbl_projekttyp.bezeichnung
+					pa.*, tbl_projekttyp.bezeichnung,
+					tbl_lehreinheit.studiensemester_kurzbz, tbl_lehrveranstaltung.lehrveranstaltung_id,
+					tbl_firma.name AS firma_name,
+					(
+						SELECT
+							STRING_AGG(trim(COALESCE(titelpre,'')||' '||COALESCE(vorname,'')||' '||COALESCE(nachname,'')||' '||COALESCE(titelpost,'')), ', ')
+						FROM
+							lehre.tbl_projektbetreuer
+							JOIN public.tbl_person USING (person_id)
+						WHERE
+							projektarbeit_id = pa.projektarbeit_id
+							AND student_uid = pa.student_uid
+						GROUP BY projektarbeit_id
+					) AS projektbetreuer
 				FROM
-					lehre.tbl_projektarbeit
-				JOIN
-					lehre.tbl_projekttyp USING (projekttyp_kurzbz), lehre.tbl_lehreinheit, lehre.tbl_lehrveranstaltung
-
+					lehre.tbl_projektarbeit pa
+					JOIN lehre.tbl_projekttyp USING (projekttyp_kurzbz)
+					JOIN lehre.tbl_lehreinheit USING (lehreinheit_id)
+					JOIN lehre.tbl_lehrveranstaltung USING (lehrveranstaltung_id)
+					LEFT JOIN public.tbl_firma USING (firma_id)
 				WHERE
-					tbl_projektarbeit.lehreinheit_id=tbl_lehreinheit.lehreinheit_id AND
-					tbl_lehreinheit.lehrveranstaltung_id = tbl_lehrveranstaltung.lehrveranstaltung_id AND
-					tbl_projektarbeit.student_uid = ?";
+					pa.student_uid = ?";

 		$params = array($student_uid);

@@ -52,16 +64,16 @@ class Projektarbeit_model extends DB_Model
 		if (isset($projekttyp))
 		{
 			if (is_array($projekttyp))
-				$qry .= ' AND tbl_projektarbeit.projekttyp_kurzbz IN ?';
+				$qry .= ' AND pa.projekttyp_kurzbz IN ?';
 			else
-				$qry .= ' AND tbl_projektarbeit.projekttyp_kurzbz=?';
+				$qry .= ' AND pa.projekttyp_kurzbz=?';

 			$params[] = $projekttyp;
 		}

 		if (isset($final))
 		{
-			$qry .= ' AND tbl_projektarbeit.final=?';
+			$qry .= ' AND pa.final=?';
 			$params[] = $final;
 		}

@@ -97,36 +109,36 @@ class Projektarbeit_model extends DB_Model
 	 */
 	public function getStudentProjektarbeitenWithBetreuer($studentUID)
 	{
-		$betreuerQuery = "
-		SELECT 
+		$betreuerQuery = "SELECT * FROM (SELECT DISTINCT ON(projektarbeit_id)
 			vorname as bvorname,
 			nachname as bnachname,
 			titelpre as btitelpre,
 			titelpost AS btitelpost,
-			titelpost AS btitelpost,
 			tbl_betreuerart.beschreibung AS betreuerart_beschreibung,
 		
-			(SELECT person_id 
-			 FROM lehre.tbl_projektbetreuer 
+			(SELECT person_id
+			 FROM lehre.tbl_projektbetreuer
 			 WHERE projektarbeit_id=tbl_projektarbeit.projektarbeit_id
-			 AND betreuerart_kurzbz IN ('Zweitbetreuer', 'Zweitbegutachter') LIMIT 1) AS zweitbetreuer_person_id,
-			(SELECT betreuerart_kurzbz 
-			 FROM lehre.tbl_projektbetreuer 
+			   AND betreuerart_kurzbz IN ('Zweitbetreuer', 'Zweitbegutachter') LIMIT 1) AS zweitbetreuer_person_id,
+			(SELECT betreuerart_kurzbz
+			 FROM lehre.tbl_projektbetreuer
 			 WHERE projektarbeit_id=tbl_projektarbeit.projektarbeit_id
-			AND betreuerart_kurzbz IN ('Zweitbetreuer', 'Zweitbegutachter') LIMIT 1) AS zweitbetreuer_betreuerart_kurzbz,
-			(SELECT tbl_betreuerart.beschreibung 
-			 FROM lehre.tbl_projektbetreuer JOIN lehre.tbl_betreuerart USING(betreuerart_kurzbz) 
+			   AND betreuerart_kurzbz IN ('Zweitbetreuer', 'Zweitbegutachter') LIMIT 1) AS zweitbetreuer_betreuerart_kurzbz,
+			(SELECT tbl_betreuerart.beschreibung
+			 FROM lehre.tbl_projektbetreuer JOIN lehre.tbl_betreuerart USING(betreuerart_kurzbz)
 			 WHERE projektarbeit_id=tbl_projektarbeit.projektarbeit_id
-			 AND betreuerart_kurzbz IN ('Zweitbetreuer', 'Zweitbegutachter', 'Senatsmitglied') LIMIT 1) AS zweitbetreuer_betreuerart_beschreibung,
-			
+			   AND betreuerart_kurzbz IN ('Zweitbetreuer', 'Zweitbegutachter', 'Senatsmitglied') LIMIT 1) AS zweitbetreuer_betreuerart_beschreibung,
+		
 			tbl_betreuerart.betreuerart_kurzbz,
 			person_id as bperson_id,
 			projektarbeit_id,
 			lehre.tbl_projekttyp.bezeichnung as projekttypbezeichnung,
+			lehre.tbl_projekttyp.projekttyp_kurzbz as projekttypkurzbz,
 			lehre.tbl_lehreinheit.studiensemester_kurzbz,
 			lehre.tbl_lehrveranstaltung.studiengang_kz,
 			public.tbl_studiengang.kurzbzlang,
-			lehre.tbl_projektbetreuer.note as note,
+			lehre.tbl_projektarbeit.note as note,
+			lehre.tbl_note.bezeichnung as note_bezeichnung,
 			public.tbl_mitarbeiter.mitarbeiter_uid,
 			lehre.tbl_projektarbeit.titel as titel,
 			lehre.tbl_projektarbeit.sprache as sprache,
@@ -135,9 +147,8 @@ class Projektarbeit_model extends DB_Model
 			lehre.tbl_projektarbeit.schlagwoerter as schlagwoerter,
 			lehre.tbl_projektarbeit.schlagwoerter_en as schlagwoerter_en,
 			lehre.tbl_projektarbeit.abstract as abstract,
-			lehre.tbl_projektarbeit.abstract_en as abstract_en, 
-			(SELECT abgeschicktvon FROM extension.tbl_projektarbeitsbeurteilung WHERE projektarbeit_id = tbl_projektarbeit.projektarbeit_id AND betreuer_person_id = tbl_projektbetreuer.person_id) AS babgeschickt,
-			(SELECT abgeschicktvon FROM extension.tbl_projektarbeitsbeurteilung WHERE projektarbeit_id = tbl_projektarbeit.projektarbeit_id AND betreuerart_kurzbz IN ('Zweitbetreuer', 'Zweitbegutachter') LIMIT 1) AS zweitbetreuer_abgeschickt,
+			lehre.tbl_projektarbeit.abstract_en as abstract_en,
+			lehre.tbl_projektarbeit.insertamum as insertamum,
 			(SELECT datum FROM campus.tbl_paabgabe WHERE paabgabetyp_kurzbz = 'end' AND abgabedatum IS NOT NULL AND projektarbeit_id = tbl_projektarbeit.projektarbeit_id LIMIT 1) AS abgegeben
 		
 		FROM lehre.tbl_projektarbeit
@@ -146,15 +157,17 @@ class Projektarbeit_model extends DB_Model
 				 LEFT JOIN public.tbl_benutzer USING(person_id)
 				 LEFT JOIN lehre.tbl_projekttyp USING (projekttyp_kurzbz)
 				 LEFT JOIN lehre.tbl_betreuerart USING(betreuerart_kurzbz)
-				LEFT JOIN lehre.tbl_lehreinheit USING(lehreinheit_id)
-				LEFT JOIN lehre.tbl_lehrveranstaltung USING(lehrveranstaltung_id)
-		LEFT JOIN public.tbl_mitarbeiter ON(public.tbl_mitarbeiter.mitarbeiter_uid = public.tbl_benutzer.uid)
-		LEFT JOIN public.tbl_studiengang USING(studiengang_kz)
-		WHERE 
-			tbl_projektarbeit.student_uid = ? AND
+				 LEFT JOIN lehre.tbl_lehreinheit USING(lehreinheit_id)
+				 LEFT JOIN lehre.tbl_lehrveranstaltung USING(lehrveranstaltung_id)
+				 LEFT JOIN public.tbl_mitarbeiter ON(public.tbl_mitarbeiter.mitarbeiter_uid = public.tbl_benutzer.uid)
+				 LEFT JOIN public.tbl_studiengang USING(studiengang_kz)
+				 LEFT JOIN lehre.tbl_note ON(lehre.tbl_projektarbeit.note = lehre.tbl_note.note)
+		WHERE
+			tbl_projektarbeit.student_uid = ? AND mitarbeiter_uid IS NOT NULL AND
 			(projekttyp_kurzbz='Bachelor' OR projekttyp_kurzbz='Diplom')
-  		AND betreuerart_kurzbz IN ('Betreuer', 'Begutachter', 'Erstbegutachter', 'Senatsvorsitz')";
-		
+		  AND betreuerart_kurzbz IN ('Betreuer', 'Begutachter', 'Erstbegutachter', 'Senatsvorsitz')) as base
+		ORDER BY insertamum DESC";
+				
 		return $this->execReadOnlyQuery($betreuerQuery, array($studentUID));
 	}

@@ -167,8 +180,12 @@ class Projektarbeit_model extends DB_Model
 					campus.tbl_paabgabe.fixtermin,
 					campus.tbl_paabgabe.kurzbz,
 					campus.tbl_paabgabe.datum,
+					campus.tbl_paabgabe.note,
+					campus.tbl_paabgabe.upload_allowed,
+					campus.tbl_paabgabe.beurteilungsnotiz,
 					campus.tbl_paabgabetyp.paabgabetyp_kurzbz, 
 					campus.tbl_paabgabetyp.bezeichnung, 
+					campus.tbl_paabgabetyp.benotbar, 
 					campus.tbl_paabgabe.abgabedatum,
 					campus.tbl_paabgabe.insertvon
 				FROM campus.tbl_paabgabe JOIN campus.tbl_paabgabetyp USING(paabgabetyp_kurzbz)
@@ -178,16 +195,76 @@ class Projektarbeit_model extends DB_Model
 		return $this->execReadOnlyQuery($qry, array($projektarbeit_id));
 	}

+	public function getProjektarbeitenAbgabetermine($projektarbeiten_ids) {
+		$qry ="SELECT campus.tbl_paabgabe.paabgabe_id, 
+					campus.tbl_paabgabe.projektarbeit_id,
+					campus.tbl_paabgabe.fixtermin,
+					campus.tbl_paabgabe.kurzbz,
+					campus.tbl_paabgabe.datum,
+					campus.tbl_paabgabe.note,
+					campus.tbl_paabgabe.upload_allowed,
+					campus.tbl_paabgabe.beurteilungsnotiz,
+					campus.tbl_paabgabetyp.paabgabetyp_kurzbz, 
+					campus.tbl_paabgabetyp.bezeichnung, 
+					campus.tbl_paabgabe.abgabedatum,
+					campus.tbl_paabgabe.insertvon
+				FROM campus.tbl_paabgabe JOIN campus.tbl_paabgabetyp USING(paabgabetyp_kurzbz)
+				WHERE campus.tbl_paabgabe.projektarbeit_id IN ?
+				ORDER BY campus.tbl_paabgabe.datum";
+
+		return $this->execReadOnlyQuery($qry, array($projektarbeiten_ids));
+	}
+
 	public function getProjektbetreuerAnrede($bperson_id) {
-		$qry_betr="SELECT distinct trim(COALESCE(titelpre,'')||' '||COALESCE(vorname,'')||' '||COALESCE(nachname,'')||' '||COALESCE(titelpost,'')) as first,
-						public.tbl_mitarbeiter.mitarbeiter_uid, anrede
-						FROM public.tbl_person JOIN lehre.tbl_projektbetreuer ON(lehre.tbl_projektbetreuer.person_id=public.tbl_person.person_id)
-						JOIN public.tbl_benutzer ON(public.tbl_benutzer.person_id=public.tbl_person.person_id)
-						JOIN public.tbl_mitarbeiter ON(public.tbl_benutzer.uid=public.tbl_mitarbeiter.mitarbeiter_uid)
-						WHERE public.tbl_person.person_id= ?";
+		$qry_betr="SELECT DISTINCT ON(public.tbl_person.person_id) trim(COALESCE(titelpre,'')||' '||COALESCE(vorname,'')||' '||COALESCE(nachname,'')||' '||COALESCE(titelpost,'')) as first, anrede
+			FROM public.tbl_person JOIN lehre.tbl_projektbetreuer ON(lehre.tbl_projektbetreuer.person_id=public.tbl_person.person_id)
+			WHERE public.tbl_person.person_id= ?";

 		return $this->execReadOnlyQuery($qry_betr, [$bperson_id]);
+	}
+	
+	public function getProjektbetreuerEmail($projektarbeit_id) {
+		$qry = "SELECT (
+				   SELECT kontakt
+				   FROM public.tbl_kontakt
+				   WHERE kontakttyp = 'email'
+					 AND person_id = pers.person_id
+				   ORDER BY
+					   CASE WHEN zustellung THEN 0 ELSE 1 END,
+					   insertamum DESC NULLS LAST
+				   LIMIT 1
+			   ) AS private_email, mitarbeiter_uid as uid
+		FROM lehre.tbl_projektarbeit pa
+				 JOIN lehre.tbl_projektbetreuer USING (projektarbeit_id)
+				 JOIN public.tbl_person pers USING (person_id)
+				 LEFT JOIN public.tbl_benutzer ben USING (person_id)
+				 LEFT JOIN public.tbl_mitarbeiter ma ON ben.uid = ma.mitarbeiter_uid
+		WHERE (ben.aktiv OR ben.aktiv IS NULL)
+		  AND projektarbeit_id = ?";

+		return $this->execReadOnlyQuery($qry, [$projektarbeit_id]);
+	}
+	
+	public function getProjektbetreuerEmailByPersonID($person_id) {
+		$qry = "SELECT (
+				   SELECT kontakt
+				   FROM public.tbl_kontakt
+				   WHERE kontakttyp = 'email'
+					 AND person_id = pers.person_id
+				   ORDER BY
+					   CASE WHEN zustellung THEN 0 ELSE 1 END,
+					   insertamum DESC NULLS LAST
+				   LIMIT 1
+			   ) AS private_email, mitarbeiter_uid as uid
+		FROM lehre.tbl_projektarbeit pa
+				 JOIN lehre.tbl_projektbetreuer USING (projektarbeit_id)
+				 JOIN public.tbl_person pers USING (person_id)
+				 LEFT JOIN public.tbl_benutzer ben USING (person_id)
+				 LEFT JOIN public.tbl_mitarbeiter ma ON ben.uid = ma.mitarbeiter_uid
+		WHERE (ben.aktiv OR ben.aktiv IS NULL)
+		  AND person_id = ?";
+
+		return $this->execReadOnlyQuery($qry, [$person_id]);
 	}

 	public function getProjektarbeitBenutzer($uid) {
@@ -222,9 +299,9 @@ class Projektarbeit_model extends DB_Model
 					*
 				FROM
 					(SELECT tbl_person.vorname, tbl_person.nachname, tbl_studiengang.typ, tbl_studiengang.kurzbz,
-							tbl_projektarbeit.projekttyp_kurzbz, tbl_projekttyp.bezeichnung, tbl_projektarbeit.titel, tbl_projektarbeit.projektarbeit_id,
-							tbl_projektbetreuer.betreuerart_kurzbz, tbl_betreuerart.beschreibung AS betreuerart_beschreibung,
-							tbl_benutzer.uid, tbl_student.matrikelnr, tbl_lehreinheit.studiensemester_kurzbz
+							tbl_projektarbeit.projekttyp_kurzbz, tbl_projekttyp.bezeichnung, tbl_projektarbeit.titel, tbl_projektarbeit.projektarbeit_id, tbl_projektarbeit.note,
+							tbl_projektbetreuer.person_id as betreuer_person_id, tbl_projektbetreuer.betreuerart_kurzbz, tbl_betreuerart.beschreibung AS betreuerart_beschreibung,
+							tbl_benutzer.uid, tbl_student.matrikelnr, tbl_lehreinheit.studiensemester_kurzbz, public.tbl_student.student_uid
 					 FROM lehre.tbl_projektarbeit
 							  LEFT JOIN lehre.tbl_projektbetreuer using(projektarbeit_id)
 							  LEFT JOIN lehre.tbl_betreuerart using(betreuerart_kurzbz)
@@ -261,4 +338,170 @@ class Projektarbeit_model extends DB_Model
 		
 		return $this->execReadOnlyQuery($qry, array($projektarbeit_id));
 	}
+	
+	
+	public function getProjektarbeitenForStudiengang($studiengang_kz, $benotet) {
+		$new_qry = "SELECT DISTINCT ON(tmp.projektarbeit_id) *, campus.get_betreuer_details(tmp.zweitbetreuer_person_id) as zweitbetreuer_full_name, campus.get_betreuer_details(tmp.betreuer_person_id) as erstbetreuer_full_name
+       		FROM(
+			   SELECT
+				   DISTINCT ON(tbl_projektarbeit.projektarbeit_id)
+				   tbl_projektarbeit.projekttyp_kurzbz,
+				   tbl_projektarbeit.titel,
+				   tbl_projektarbeit.projektarbeit_id,
+				   tbl_studiengang.typ, tbl_studiengang.kurzbz,
+				   student_benutzer.uid as student_uid,
+				   student_person.vorname as student_vorname,
+				   student_person.nachname as student_nachname,
+				   tbl_student.matrikelnr, tbl_lehreinheit.studiensemester_kurzbz,
+				   betreuer_benutzer.uid as betreuer_benutzer_uid,
+				   betreuer_person.vorname as betreuer_vorname,
+				   betreuer_person.nachname as betreuer_nachname,
+				   lehre.tbl_projektbetreuer.betreuerart_kurzbz as betreuerart,
+				   lehre.tbl_projektbetreuer.person_id as betreuer_person_id,
+				   lehre.tbl_projektarbeit.sprache               as sprache,
+				   lehre.tbl_projektarbeit.seitenanzahl          as seitenanzahl,
+				   lehre.tbl_projektarbeit.kontrollschlagwoerter as kontrollschlagwoerter,
+				   lehre.tbl_projektarbeit.schlagwoerter         as schlagwoerter,
+				   lehre.tbl_projektarbeit.schlagwoerter_en      as schlagwoerter_en,
+				   lehre.tbl_projektarbeit.abstract              as abstract,
+				   lehre.tbl_projektarbeit.abstract_en           as abstract_en,
+				   lehre.tbl_projektarbeit.insertamum            as insertamum,
+				   lehre.tbl_projektarbeit.note					 as note,
+				   (
+					   SELECT orgform_kurzbz
+					   FROM tbl_prestudentstatus
+					   WHERE prestudent_id = (SELECT prestudent_id
+											  FROM tbl_student
+											  WHERE student_uid = student_benutzer.uid
+											  LIMIT 1)
+					   ORDER BY datum DESC, insertamum DESC, ext_id DESC
+					   LIMIT 1
+				   )
+					   as organisationsform,
+				   (
+					   SELECT person_id
+					   FROM lehre.tbl_projektbetreuer
+					   WHERE projektarbeit_id = tbl_projektarbeit.projektarbeit_id
+						 AND betreuerart_kurzbz IN ('Zweitbetreuer', 'Zweitbegutachter', 'Senatsmitglied')
+					   LIMIT 1
+				   )
+					   AS zweitbetreuer_person_id,
+				   (
+					   SELECT betreuerart_kurzbz
+					   FROM lehre.tbl_projektbetreuer
+					   WHERE projektarbeit_id = tbl_projektarbeit.projektarbeit_id
+						 AND betreuerart_kurzbz IN ('Zweitbetreuer', 'Zweitbegutachter', 'Senatsmitglied')
+					   LIMIT 1
+				   )
+					   AS zweitbetreuer_betreuerart_kurzbz,
+				   (
+					   SELECT tbl_betreuerart.beschreibung
+					   FROM lehre.tbl_projektbetreuer
+								JOIN lehre.tbl_betreuerart USING (betreuerart_kurzbz)
+					   WHERE projektarbeit_id = tbl_projektarbeit.projektarbeit_id
+						 AND betreuerart_kurzbz IN ('Zweitbetreuer', 'Zweitbegutachter', 'Senatsmitglied')
+					   LIMIT 1
+				   )
+					   AS zweitbetreuer_betreuerart_beschreibung,
+				   (
+					   SELECT trim(COALESCE(titelpre, '') || ' ' || COALESCE(vorname, '') || ' ' || COALESCE(nachname, '') || ' ' ||
+								   COALESCE(titelpost, ''))
+					   FROM public.tbl_person
+								JOIN lehre.tbl_projektbetreuer ON (lehre.tbl_projektbetreuer.person_id = public.tbl_person.person_id)
+								LEFT JOIN public.tbl_benutzer ON (public.tbl_benutzer.person_id = public.tbl_person.person_id)
+								LEFT JOIN public.tbl_mitarbeiter ON (public.tbl_benutzer.uid = public.tbl_mitarbeiter.mitarbeiter_uid)
+					   WHERE projektarbeit_id = tbl_projektarbeit.projektarbeit_id
+						 AND betreuerart_kurzbz IN ('Zweitbetreuer', 'Zweitbegutachter', 'Senatsmitglied')
+					   LIMIT 1
+				   )
+					   as zweitbetreuer_full_name,
+			       (
+					   SELECT
+						   COALESCE(tbl_studienplan.orgform_kurzbz,
+									tbl_prestudentstatus.orgform_kurzbz, tbl_studiengang.orgform_kurzbz) as
+							   orgform
+					   FROM
+						   public.tbl_prestudent
+							   JOIN public.tbl_prestudentstatus USING(prestudent_id)
+							   JOIN public.tbl_studiensemester USING(studiensemester_kurzbz)
+							   JOIN public.tbl_studiengang USING(studiengang_kz)
+							   LEFT JOIN lehre.tbl_studienplan USING(studienplan_id)
+					   WHERE
+						   prestudent_id=tbl_student.prestudent_id
+					   ORDER BY tbl_prestudentstatus.datum DESC LIMIT 1
+				   ) as orgform,
+				   (SELECT status_kurzbz FROM public.tbl_prestudentstatus
+					WHERE prestudent_id=tbl_student.prestudent_id
+					ORDER BY datum DESC, insertamum DESC, ext_id DESC LIMIT 1) as studienstatus
+			   FROM lehre.tbl_projektarbeit
+						LEFT JOIN public.tbl_benutzer student_benutzer ON (student_benutzer.uid = lehre.tbl_projektarbeit.student_uid)
+						LEFT JOIN public.tbl_person student_person ON (student_benutzer.person_id = student_person.person_id)
+						LEFT JOIN public.tbl_student on(student_benutzer.uid = public.tbl_student.student_uid)
+						LEFT JOIN lehre.tbl_lehreinheit USING (lehreinheit_id)
+						LEFT JOIN lehre.tbl_lehrveranstaltung USING (lehrveranstaltung_id)
+						LEFT JOIN public.tbl_studiengang ON (public.tbl_student.studiengang_kz = public.tbl_studiengang.studiengang_kz)
+						LEFT JOIN lehre.tbl_projekttyp USING (projekttyp_kurzbz)
+						LEFT JOIN lehre.tbl_projektbetreuer USING (projektarbeit_id)
+						LEFT JOIN public.tbl_person betreuer_person ON (betreuer_person.person_id = lehre.tbl_projektbetreuer.person_id)
+						LEFT JOIN public.tbl_benutzer betreuer_benutzer ON (betreuer_person.person_id = betreuer_benutzer.person_id)
+			   WHERE (projekttyp_kurzbz = 'Bachelor' OR projekttyp_kurzbz = 'Diplom')
+				 AND student_benutzer.aktiv AND (
+				     lehre.tbl_projektbetreuer.betreuerart_kurzbz = 'Erstbegutachter' 
+				     OR lehre.tbl_projektbetreuer.betreuerart_kurzbz = 'Begutachter'
+				     OR lehre.tbl_projektbetreuer.betreuerart_kurzbz = 'Betreuer'
+				     OR lehre.tbl_projektbetreuer.betreuerart_kurzbz = 'Erstbetreuer'
+				     OR lehre.tbl_projektbetreuer.betreuerart_kurzbz = 'Senatsvorsitz'
+				     )
+				 AND public.tbl_studiengang.studiengang_kz = ?";
+		
+			     if($benotet == 0) {
+					 $new_qry .= " AND lehre.tbl_projektarbeit.note IS NULL ";
+				 } else if ($benotet == 1) {
+					 $new_qry .= " AND lehre.tbl_projektarbeit.note IS NOT NULL ";
+				 }
+				 
+			   $new_qry .= " ORDER BY tbl_projektarbeit.projektarbeit_id DESC, student_person.nachname ASC           
+		   ) as tmp";
+		
+		return $this->execReadOnlyQuery($new_qry, array($studiengang_kz));
+	}
+	
+	/**
+	 *
+	 * @param
+	 * @return object success or error
+	 */
+	public function hasBerechtigungForProjektarbeit($projektarbeit_id)
+	{
+		if (!$projektarbeit_id || !is_numeric($projektarbeit_id))
+			return false;
+
+		$this->ProjektarbeitModel->addSelect('studiengang_kz');
+		$this->ProjektarbeitModel->addJoin('public.tbl_student', 'student_uid');
+		$result = $this->ProjektarbeitModel->load($projektarbeit_id);
+		if (isError($result) || !hasData($result))
+			return false;
+
+		$studiengang_kz = getData($result)[0]->studiengang_kz;
+
+		if ($this->permissionlib->isBerechtigt('admin', 'suid', $studiengang_kz))
+			return true;
+		if ($this->permissionlib->isBerechtigt('assistenz', 'suid', $studiengang_kz))
+			return true;
+
+		return false;
+	}
+
+	public function getProjektarbeitByPaabgabeID($paabgabe_id) {
+		$qry = "SELECT
+					projektarbeit_id
+				FROM
+					campus.tbl_paabgabe
+					JOIN lehre.tbl_projektarbeit USING(projektarbeit_id)
+				WHERE
+					campus.tbl_paabgabe.paabgabe_id = ?;
+		";
+
+		return $this->execReadOnlyQuery($qry, [$paabgabe_id]);
+	}
 }
@@ -10,6 +10,7 @@ class Projektbetreuer_model extends DB_Model
 		parent::__construct();
 		$this->dbTable = 'lehre.tbl_projektbetreuer';
 		$this->pk = array('betreuerart_kurzbz', 'projektarbeit_id', 'person_id');
+		$this->hasSequence = false;
 	}

    /**
@@ -231,4 +232,41 @@ class Projektbetreuer_model extends DB_Model

 		return $this->execQuery($qry, array($projektarbeit_id, $betreuer_person_id));
 	}
+
+	/**
+	 * Gets all Betreuer of a Projektarbeit.
+	 * Returns one row for each person.
+	 * @param int $projektarbeit_id
+	 * @return array success with number of Betreuer or error
+	 */
+	public function getAllBetreuerOfProjektarbeit($projektarbeit_id)
+	{
+		$qry = "SELECT DISTINCT ON (pers.person_id) pers.person_id, betreuerart_kurzbz, vorname, nachname,
+				trim(COALESCE(titelpre,'')||' '||COALESCE(vorname,'')||' '||COALESCE(nachname,'')||' '||COALESCE(titelpost,'')) as voller_name,
+				anrede, titelpre, titelpost, gebdatum, geschlecht, pa.projekttyp_kurzbz,
+				ben.uid, ben.alias, ma.personalnummer, mitarbeiter_uid, student_uid,
+				(
+					SELECT kontakt
+					FROM public.tbl_kontakt
+					WHERE kontakttyp = 'email'
+					AND person_id = pers.person_id
+					ORDER BY
+						CASE WHEN zustellung THEN 0 ELSE 1 END,
+						insertamum DESC NULLS LAST
+					LIMIT 1
+				) AS private_email
+				FROM lehre.tbl_projektarbeit pa
+				JOIN lehre.tbl_projektbetreuer USING (projektarbeit_id)
+				JOIN public.tbl_person pers USING (person_id)
+				LEFT JOIN public.tbl_benutzer ben USING (person_id)
+				LEFT JOIN public.tbl_mitarbeiter ma ON ben.uid = ma.mitarbeiter_uid
+				WHERE (ben.aktiv OR ben.aktiv IS NULL)
+				AND projektarbeit_id = ?
+				ORDER BY pers.person_id, CASE WHEN ma.mitarbeiter_uid IS NULL THEN 1 ELSE 0 END, /*Mitarbeiter account first*/
+						CASE WHEN ben.uid IS NULL THEN 1 ELSE 0 END, /*user with account first*/
+						ben.insertamum";
+
+		return $this->execQuery($qry, array($projektarbeit_id));
+	}
+
 }
@@ -213,4 +213,50 @@ class Organisationseinheit_model extends DB_Model

 		return $result;
 	}
+
+	/**
+	 * Ermittelt die Stundenobergrenze fuer Lektoren
+	 * Dabei wird im OE Baum nach oben nach Stundengrenzen gesucht und die niedrigste Stundengrenze ermittelt
+	 * @param $oe_kurzbz Organisationseinheit
+	 * @param $fixangestellt boolean legt fest ob die Grenze
+	 *        fuer Freie oder Fixangestellte Lektoren ermittelt werden soll
+
+	 */
+	public function getStundengrenze($oe_kurzbz, $fixangestellt = true)
+	{
+		$fixfrei = $fixangestellt ? 'fix' : 'frei';
+
+		$qry = "
+			WITH RECURSIVE oes(oe_kurzbz, oe_parent_kurzbz) as
+			(
+				SELECT oe_kurzbz, oe_parent_kurzbz FROM public.tbl_organisationseinheit
+				WHERE oe_kurzbz= ?
+				UNION ALL
+				SELECT o.oe_kurzbz, o.oe_parent_kurzbz FROM public.tbl_organisationseinheit o, oes
+				WHERE o.oe_kurzbz=oes.oe_parent_kurzbz
+			)
+			SELECT oe_kurzbz, warn_semesterstunden_{$fixfrei} AS stunden
+			FROM oes
+				JOIN public.tbl_organisationseinheit USING (oe_kurzbz)
+			ORDER BY warn_semesterstunden_{$fixfrei} ASC
+			LIMIT 1";
+
+		return $this->execReadOnlyQuery($qry, array($oe_kurzbz));
+	}
+	
+	public function getAssistenzForOE($oe_kurzbz) {
+		$qry = "
+			SELECT person_id, uid, benutzerfunktion_id, funktion_kurzbz, oe_kurzbz, alias, 
+       			anrede, trim(COALESCE(titelpre,'')||' '||COALESCE(vorname,'')||' '||COALESCE(nachname,'')||' '||COALESCE(titelpost,'')) as first
+			FROM tbl_benutzerfunktion
+					 JOIN public.tbl_benutzer USING(uid)
+					 JOIN public.tbl_person USING(person_id)
+			WHERE funktion_kurzbz = 'ass'
+				AND oe_kurzbz = ?
+				AND (datum_bis IS NULL OR NOW() <= datum_bis)
+				AND public.tbl_benutzer.aktiv = true
+		";
+
+		return $this->execReadOnlyQuery($qry, array($oe_kurzbz));
+	}
 }
@@ -657,37 +657,7 @@ class Studiengang_model extends DB_Model
 		$this->load->model('person/Benutzerfunktion_model', 'BenutzerfunktionModel');
 		$this->load->model('person/Person_model', 'PersonModel');
 		$this->load->model('crm/Student_model', 'StudentModel');
-
-		$addEmailProperty= function(&$benutzerfunktionen){
-			if(count($benutzerfunktionen) && defined('DOMAIN'))
-			{
-				$benutzerfunktionen = array_map(function($benutzer)
-				{
-					$benutzer->email = $benutzer->alias."@".DOMAIN;
-					return $benutzer;
-				},$benutzerfunktionen) ;
-			}
-
-		};
-		$addFotoProperty= function(&$collection){
-			$collection = array_map(function($item){
-				$person_id = $this->PersonModel->getByUid($item->uid);
-				if(isError($person_id))
-					return error($person_id);
-				$person_id = current(getData($person_id))->person_id;
-				$this->PersonModel->addSelect('foto');
-				$foto = $this->PersonModel->loadWhere(array('person_id'=>$person_id));
-				if(isError($foto))
-					return error($foto);	
-				$foto = current(getData($foto))->foto;
-				$item->foto = $foto;
-				return $item;
-			},$collection);
-		};
 		
-
-		$this->load->model('crm/Student_model', 'StudentModel');
-
 		$student = $this->StudentModel->loadWhere(['student_uid' => getAuthUID()]);
 		if (isError($student))
 			return error($student);
@@ -712,7 +682,7 @@ class Studiengang_model extends DB_Model
 		$stg_ltg = array_values(array_filter($stg_ltg, function($stg_leitung){
 			return $stg_leitung->aktiv;
 		}));
-		$addFotoProperty($stg_ltg);
+		$this->addFotoProperty($stg_ltg);

 		$gf_ltg = $this->BenutzerfunktionModel->getBenutzerFunktionenDetailed('gLtg', $stg_obj->oe_kurzbz);
 		if (isError($gf_ltg))
@@ -721,8 +691,8 @@ class Studiengang_model extends DB_Model
 		$gf_ltg = array_values(array_filter($gf_ltg, function($gf_leitung){
 			return $gf_leitung->aktiv;
 		}));
-		$addEmailProperty($gf_ltg);
-		$addFotoProperty($gf_ltg);
+		$this->addEmailProperty($gf_ltg);
+		$this->addFotoProperty($gf_ltg);

 		$stv_ltg = $this->BenutzerfunktionModel->getBenutzerFunktionenDetailed('stvLtg', $stg_obj->oe_kurzbz);
 		if (isError($stv_ltg))
@@ -731,8 +701,8 @@ class Studiengang_model extends DB_Model
 		$stv_ltg = array_values(array_filter($stv_ltg, function($stv_leitung){
 			return $stv_leitung->aktiv;
 		}));
-		$addEmailProperty($stv_ltg);
-		$addFotoProperty($stv_ltg);
+		$this->addEmailProperty($stv_ltg);
+		$this->addFotoProperty($stv_ltg);

 		$ass = $this->BenutzerfunktionModel->getBenutzerFunktionenDetailed('ass', $stg_obj->oe_kurzbz);
 		if (isError($ass))
@@ -741,8 +711,8 @@ class Studiengang_model extends DB_Model
 		$ass = array_values(array_filter($ass, function($assistenz){
 			return $assistenz->aktiv;
 		}));
-		$addEmailProperty($ass);
-		$addFotoProperty($ass);
+		$this->addEmailProperty($ass);
+		$this->addFotoProperty($ass);

 		$hochschulvertr = $this->BenutzerfunktionModel->getBenutzerFunktionenDetailed('hsv');
 		if (isError($hochschulvertr))
@@ -751,7 +721,7 @@ class Studiengang_model extends DB_Model
 		$hochschulvertr = array_values(array_filter($hochschulvertr, function($hochschul_vertreter){
 			return $hochschul_vertreter->aktiv;
 		}));
-		$addEmailProperty($hochschulvertr);
+		$this->addEmailProperty($hochschulvertr);


 		$stdv = $this->BenutzerfunktionModel->getBenutzerFunktionenDetailed('stdv', $stg_obj->oe_kurzbz);
@@ -761,7 +731,7 @@ class Studiengang_model extends DB_Model
 		$stdv = array_values(array_filter($stdv, function($std_vertreter){
 			return $std_vertreter->aktiv;
 		}));
-		$addEmailProperty($stdv);
+		$this->addEmailProperty($stdv);


 		$jahrgangsvertr = $this->BenutzerfunktionModel->getBenutzerFunktionenDetailed('jgv', $stg_obj->oe_kurzbz, $semester);
@@ -771,7 +741,7 @@ class Studiengang_model extends DB_Model
 		$jahrgangsvertr = array_values(array_filter($jahrgangsvertr, function($jahrgang_vertreter){
 			return $jahrgang_vertreter->aktiv;
 		}));
-		$addEmailProperty($jahrgangsvertr);
+		$this->addEmailProperty($jahrgangsvertr);


 		$result_object = new stdClass();
@@ -801,4 +771,141 @@ class Studiengang_model extends DB_Model

 		return $this->execReadOnlyQuery($qry, array($studiengang_kz, $orgform_kurzbz, $studiensemester_kurzbz));
 	}
+
+	/**
+	 * Get active Studiengänge with Kuerzel by given Studiengang-Kennzahlen.
+	 * Helpful to easily get Studiengänge the user is entitled for.
+	 *
+	 * @param $studiengang_kz_arr
+	 * @param $studiensemester_kurzbz
+	 * @return array|stdClass|null	Returns one row per Studiengang. Not considering the Orgforms.
+	 */
+	public function getByStgs($studiengang_kz_arr, $studiensemester_kurzbz)
+	{
+		if (is_numeric($studiengang_kz_arr))
+		{
+			$studiengang_kz_arr = [$studiengang_kz_arr];
+		}
+
+		$qry = '
+			SELECT
+				DISTINCT stg.*, UPPER(typ::varchar(1) || kurzbz) AS kuerzel
+			FROM
+				public.tbl_studiengang stg
+				JOIN lehre.tbl_studienordnung sto USING(studiengang_kz)
+				JOIN lehre.tbl_studienplan stpl USING(studienordnung_id)
+				JOIN lehre.tbl_studienplan_semester stplsem USING(studienplan_id)
+			WHERE
+				stg.studiengang_kz IN ?
+				AND stplsem.studiensemester_kurzbz = ?
+			ORDER BY
+				stg.kurzbzlang
+		';
+
+		return $this->execQuery($qry, [$studiengang_kz_arr, $studiensemester_kurzbz]);
+	}
+
+	/**
+	 * Get OrgForms of given Studiengang and Studiensemester.
+	 *
+	 * @param $studiengang_kz
+	 * @param $studiensemester_kurzbz
+	 * @return array|stdClass|null
+	 */
+	public function getOrgformsByStg($studiengang_kz, $studiensemester_kurzbz)
+	{
+		$qry = '
+			SELECT
+				stpl.orgform_kurzbz
+			FROM
+				public.tbl_studiengang stg
+				JOIN lehre.tbl_studienordnung sto USING(studiengang_kz)
+				JOIN lehre.tbl_studienplan stpl USING(studienordnung_id)
+				JOIN lehre.tbl_studienplan_semester stplsem USING(studienplan_id)
+			WHERE
+				stg.studiengang_kz = ?
+				AND stg.aktiv = TRUE
+				AND stplsem.studiensemester_kurzbz = ?
+			GROUP BY
+				stpl.orgform_kurzbz
+			ORDER BY
+				CASE stpl.orgform_kurzbz
+					WHEN \'VZ\' THEN 1
+					WHEN \'BB\' THEN 2
+					WHEN \'DUA\' THEN 3
+					ELSE 4
+				END,
+				stpl.orgform_kurzbz; 
+		';
+
+		return $this->execQuery($qry, [$studiengang_kz, $studiensemester_kurzbz]);
+	}
+	
+	public function getStudiengaengeFiltered($allowed_stg) {
+		$query ="SELECT DISTINCT
+					public.tbl_studiengang.studiengang_kz,
+					public.tbl_studiengang.bezeichnung,
+					public.tbl_studiengang.kurzbzlang,
+					public.tbl_studiengang.orgform_kurzbz
+				FROM public.tbl_studiengang JOIN lehre.tbl_studienordnung USING(studiengang_kz)
+					JOIN lehre.tbl_studienplan USING(studienordnung_id)
+					JOIN lehre.tbl_studienplan_semester USING(studienplan_id)
+				WHERE public.tbl_studiengang.aktiv = true
+				
+				AND public.tbl_studiengang.studiengang_kz IN ?
+				ORDER BY public.tbl_studiengang.kurzbzlang";
+
+		return $this->execReadOnlyQuery($query, [$allowed_stg]);
+	}
+	
+	public function getAssistenzForStudiengangKZ($stg_kz) {
+		$this->load->model('person/Benutzerfunktion_model', 'BenutzerfunktionModel');
+		
+		$stg_obj = $this->load($stg_kz);
+		if(isError($stg_obj))
+			return error($stg_obj);
+		if(getData($stg_obj))
+		{
+			$stg_obj = current(getData($stg_obj));
+		}
+
+		$ass = $this->BenutzerfunktionModel->getBenutzerFunktionenDetailed('ass', $stg_obj->oe_kurzbz);
+		if (isError($ass))
+			return $ass;
+		$ass = getData($ass) ?: [];
+		$ass = array_values(array_filter($ass, function($assistenz){
+			return $assistenz->aktiv;
+		}));
+		
+		$this->addEmailProperty($ass);
+		
+		return success($ass);
+	}
+	
+	private function addEmailProperty(&$benutzerfunktionen) {
+		if(count($benutzerfunktionen) && defined('DOMAIN'))
+		{
+			$benutzerfunktionen = array_map(function($benutzer)
+			{
+				$benutzer->email = $benutzer->alias."@".DOMAIN;
+				return $benutzer;
+			},$benutzerfunktionen) ;
+		}
+	}
+	
+	private function addFotoProperty (&$collection) {
+		$collection = array_map(function($item){
+			$person_id = $this->PersonModel->getByUid($item->uid);
+			if(isError($person_id))
+				return error($person_id);
+			$person_id = current(getData($person_id))->person_id;
+			$this->PersonModel->addSelect('foto');
+			$foto = $this->PersonModel->loadWhere(array('person_id'=>$person_id));
+			if(isError($foto))
+				return error($foto);
+			$foto = current(getData($foto))->foto;
+			$item->foto = $foto;
+			return $item;
+		},$collection);
+	}
 }
@@ -53,11 +53,9 @@ class Studienjahr_model extends DB_Model
 	 * @param int $days
 	 * @return array|stdClass|null
 	 */
-	public function getLastOrAktStudienjahr($days = 60)
+	public function getLastOrAktStudienjahr($days = 0)
 	{
-		if (!is_numeric($days)) {
-			$days = 60;
-		}
+		$days = is_numeric($days) ? $this->escape($days) : 0;

 		$query = '
 			SELECT *
@@ -77,19 +75,25 @@ class Studienjahr_model extends DB_Model
 	 * @param int $days
 	 * @return array|stdClass|null
 	 */
-	public function getAktOrNextStudienjahr($days = 62)
+	public function getAktOrNextStudienjahr($days = 0)
 	{
-		if (!is_numeric($days)) {
-			$days = 62;
-		}
+		$days = is_numeric($days) ? $this->escape($days) : 0;

 		$query = '
-			SELECT *
-			FROM public.tbl_studienjahr
-			JOIN public.tbl_studiensemester using(studienjahr_kurzbz)
-			WHERE start < NOW() + \'' . $days . ' DAYS\'::INTERVAL
-			ORDER by start DESC
-			LIMIT 1
+				SELECT * FROM (
+					SELECT
+						jahr.*, MIN(sem.start) AS beginn,  MAX(sem.ende) AS ende
+					FROM
+						public.tbl_studienjahr jahr
+						JOIN public.tbl_studiensemester sem using(studienjahr_kurzbz)
+					GROUP BY
+						studienjahr_kurzbz
+				) jahre
+				WHERE
+					ende >= NOW() + \'' . $days . ' DAYS\'::INTERVAL
+				ORDER BY
+					ende
+				LIMIT 1
 		';

 		return $this->execQuery($query);
@@ -107,6 +107,8 @@ class Studienplan_model extends DB_Model
 		));
 	}

+	// Deprecated
+	// im Lehrveranstaltung_model vorhanden
 	public function getAllOesForLv($lehrveranstaltung_id)
 	{
 		$this->addDistinct('oe_kurzbz');
@@ -135,6 +137,26 @@ class Studienplan_model extends DB_Model
 		]);
 	}

+	public function loadStudienplanLehrveranstaltung($lv_id)
+	{
+		$qry = "SELECT studienplan_lehrveranstaltung_id,
+					semester,
+					pflicht,
+					studienplan_id,
+					koordinator,
+ 					studienplan_lehrveranstaltung_id_parent,
+					lehrveranstaltung_id,
+					insertamum,
+					insertvon,
+					updateamum,
+					updatevon,
+					sort,
+					curriculum,
+					export
+				FROM lehre.tbl_studienplan_lehrveranstaltung WHERE studienplan_lehrveranstaltung_id = ? ";
+		return $this->execReadOnlyQuery($qry, array($lv_id));
+	}
+
 	public function getStudienplaeneForPerson($person_id)
 	{
 		$this->addDistinct();
@@ -45,39 +45,44 @@ class Studiensemester_model extends DB_Model

 	/**
 	 * getLastOrAktSemester
+	 * @param $days offset in days, if last semester should be returned instead of current
 	 */
-	public function getLastOrAktSemester($days = 60)
+	public function getLastOrAktSemester($days = 0)
 	{
-		if (!is_numeric($days))
-		{
-			$days = 60;
-		}
+		if (!is_numeric($days)) $days = 0;

-		$query = 'SELECT studiensemester_kurzbz, start, ende
-					FROM public.tbl_studiensemester
-				   WHERE start < NOW() - \'' . $days . ' DAYS\'::INTERVAL
-				ORDER BY start DESC
-				   LIMIT 1';
+		$query = '
+			SELECT
+				studiensemester_kurzbz, start, ende
+			FROM
+				public.tbl_studiensemester
+			WHERE
+				start < NOW() - \'' . $this->escape($days) . ' DAYS\'::INTERVAL
+			ORDER
+				BY start DESC
+			LIMIT 1';

 		return $this->execQuery($query);
 	}

 	/**
-	 * getNextOrAktSemester
-	 * 62 days - in july and august, semester after summer is returned
+	 * Returns current semester, or next
+	 * @param $days offset in days, if next semester should be returned earlier
 	 */
-	public function getAktOrNextSemester($days = 62)
+	public function getAktOrNextSemester($days = 0)
 	{
-		if (!is_numeric($days))
-		{
-			$days = 62;
-		}
+		$days = is_numeric($days) ? $this->escape($days) : 0;

-		$query = 'SELECT studiensemester_kurzbz, start, ende
-					FROM public.tbl_studiensemester
-					WHERE start < NOW() + \'' . $days . ' DAYS\':: INTERVAL
-					ORDER BY start DESC
-					LIMIT 1';
+		$query = "
+			SELECT
+				studiensemester_kurzbz, start, ende
+			FROM
+				public.tbl_studiensemester
+			WHERE
+				ende >= NOW() + '". $this->escape($days) . " DAYS'::INTERVAL
+			ORDER BY
+				ende
+			LIMIT 1;";

 		return $this->execQuery($query);
 	}
@@ -177,15 +182,19 @@ class Studiensemester_model extends DB_Model
 	 */
 	public function getByDate($date)
 	{
-		// gets the studiensemster of a date or the next closest previous studiensemester if a date is not within a studiensemester
+		// gets the studiensemster of a date or the closest previous studiensemester if a date is not within a studiensemester
 		$query = "
-			SELECT  studiensemester_kurzbz, start, ende
-			FROM	public.tbl_studiensemester
-			WHERE   ( ende >= ?::date AND start <= ?::date ) OR ( ende >= ?::date + '-45 days'::interval AND start <= ?::date + '-45 days'::interval )
-			ORDER BY start DESC
+			SELECT
+				studiensemester_kurzbz, start, ende
+			FROM
+				public.tbl_studiensemester
+			WHERE
+				start <= ?::date
+			ORDER BY
+				start DESC
 			LIMIT 1";

-		return $this->execQuery($query, array($date,$date,$date,$date));
+		return $this->execQuery($query, array($date));
 	}

 	/**
@@ -200,10 +209,13 @@ class Studiensemester_model extends DB_Model
 			return success(array());

 		$query = "
-			SELECT  *
-			FROM	public.tbl_studiensemester
-			WHERE   ( ?::date < ende AND ?::date > start )
-			ORDER BY start DESC";
+			SELECT *
+			FROM
+				public.tbl_studiensemester
+			WHERE
+				?::date < ende AND ?::date > start
+			ORDER BY
+				start DESC";

 		return $this->execQuery($query, array($from, $to));
 	}
@@ -275,7 +287,7 @@ class Studiensemester_model extends DB_Model
 			$this->addLimit($minus);
 		$this->db->where('start <= NOW()', null, false);
 		$minus = $this->db->get_compiled_select($this->dbTable);
-		
+
 		$this->db->where_in($this->pk, '(' . $plus . ') UNION (' . $minus . ')', false);
 	}

@@ -0,0 +1,42 @@
+<?php
+class Kontaktverifikation_model extends DB_Model
+{
+
+	/**
+	 * Constructor
+	 */
+	public function __construct()
+	{
+		parent::__construct();
+		$this->dbTable = 'public.tbl_kontakt_verifikation';
+		$this->pk = 'kontakt_verifikation_id';
+	}
+
+	/**
+	 * Gets contact verification for a person and a verification code
+	 * @param person_id
+	 * @param kontakttyp
+	 * @param verifikation_code
+	 * @param expiration_days number of days after which verifikation code expires
+	 * @return object success or error
+	 */
+	public function getKontaktVerifikation($person_id, $kontakttyp, $verifikation_code, $expiration_days = 1)
+	{
+		$qry = "
+			SELECT
+				kt.kontakt_id,
+				kv.verifikation_code
+			FROM
+				public.tbl_kontakt_verifikation kv
+				JOIN public.tbl_kontakt kt USING(kontakt_id)
+			WHERE kt.person_id = ?
+				AND kt.kontakttyp = ?
+				AND kv.verifikation_code = ?
+				AND kv.erstelldatum >= NOW() - INTERVAL '".$this->escape($expiration_days)." days'
+			ORDER BY
+				kt.kontakt_id DESC
+			LIMIT 1";
+
+		return $this->execQuery($qry, array($person_id, $kontakttyp, $verifikation_code));
+	}
+}
--- a/Show More
+++ b/Show More