Merge branch 'master' into feature-77801/AbgabetoolSonstigesSprint252

Merge branch 'feature-83457/cis4_redirect_blank_target'
add target attribute to redirect content menu entries, use entry target attribute if set when rendering cis4 menu
2026-10-12 15:04:04 +00:00 · 2026-09-22 08:34:44 +02:00 · 2026-09-18 17:14:49 +02:00 · 2026-09-18 17:12:30 +02:00 · 2026-09-17 14:18:10 +02:00 · 2026-09-17 14:00:07 +02:00
284 changed files with 17674 additions and 5983 deletions
@@ -1,5 +1,6 @@
 documents/
 vendor/
+public/vendor

 /nbproject/
 .vscode
@@ -8,4 +8,15 @@ $config['lvverwaltung_tags'] = [
 ];
 */

-$config['lvverwaltung_tags'] = [];
+$config['lvverwaltung_tags'] = [];
+
+# Additional columns:
+/*
+$config["list_columns"] = [
+	'fieldname' => [
+		'js' => 'path/to/snippet.js', // tabulator config snippet (eg: return { name: 'Name', field: 'fieldname' }; )
+		// NOTE: 'default' & 'joins' like in stv.php config are currently not available here
+	]
+];
+*/
+
@@ -170,6 +170,13 @@ $config['navigation_header'] = array(
 					'expand' => true,
 					'sort' => 51,
 					'requiredPermissions' => 'vertrag/mitarbeiter:r'
+				),
+				'studierendenverwaltung' => array(
+					'link' => site_url('studentenverwaltung'),
+					'description' => 'Studierendenverwaltung',
+					'expand' => true,
+					'sort' => 52,
+					'requiredPermissions' => ['admin:r', 'assistenz:r']
 				)
 			)
 		),
@@ -378,7 +385,7 @@ $config['navigation_menu']['apps'] = [
 	],
 	'lav' => [
 		'link' => site_url('lehre/lehrauftrag/Lehrauftrag/Dashboard'),
-		'description' => 'Lehraufträge',
+		'description' => 'Lehrauftragsverwaltung',
 		#'icon' => 'person-chalkboard',
 		'requiredPermissions' => array('lehre/lehrauftrag_bestellen:r', 'lehre/lehrauftrag_erteilen:r')
 	]
@@ -75,52 +75,67 @@ $route['Abgabetool/Student'] = 'Cis/Abgabetool/Student';
 $route['Abgabetool/Student/(:any)'] = 'Cis/Abgabetool/Student/$1';
 $route['Abgabetool/Deadlines'] = 'Cis/Abgabetool/Deadlines';

+// Studierendenverwaltung App Routes
+$route['studvw'] = 'studentenverwaltung/index';
+$route['studvw/.*'] = 'studentenverwaltung/index';
+// Old routes
+$route['studentenverwaltung'] = 'redirect/301/studvw';
+$route['studentenverwaltung/(:any)'] = 'redirect/301/studvw/stdsem/$1';
+$route['studentenverwaltung/(:any)/(prestudent|student|person|search)/(:any)'] = 'redirect/301/studvw/stdsem/$1/$2/$3';
+$route['studentenverwaltung/(:any)/prestudent/(:any)/tab/:any'] = 'redirect/301/studvw/stdsem/$1/prestudent/$2';
+$route['studentenverwaltung/(:any)/search/(:any)/(:any)'] = 'redirect/301/studvw/stdsem/$1/search/$2/$3';
+$route['studentenverwaltung/(:any)/(:any)'] = 'redirect/301/studvw/stdsem/$1/stg/$2';
+
 // Studierendenverwaltung List Routes
-$route['api/frontend/v1/stv/[sS]tudents/inout'] = 'api/frontend/v1/stv/Students/index';
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})'] = 'api/frontend/v1/stv/Students/index';
+$route['api/frontend/v1/treemenudata/stv/stdsem/(:any)/inout/1/incoming/1'] = 'api/frontend/v1/stv/students/getIncoming/$1';
+$route['api/frontend/v1/treemenudata/stv/stdsem/(:any)/inout/1/outgoing/1'] = 'api/frontend/v1/stv/students/getOutgoing/$1';
+$route['api/frontend/v1/treemenudata/stv/stdsem/(:any)/inout/1/shared_studies/1'] = 'api/frontend/v1/stv/students/getGemeinsamestudien/$1';

-// (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/$1';
-$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/$1';
+$route['api/frontend/v1/treemenudata/stv/stdsem/:any/stg/(:any)/prestudent/1/stdsem/(:any)/:any/1/:any/1/(:any)/1'] = 'api/frontend/v1/stv/students/getPrestudents/$1/$2/$3';
+$route['api/frontend/v1/treemenudata/stv/stdsem/:any/stg/(:any)/prestudent/1/stdsem/(:any)/:any/1/(:any)/1'] = 'api/frontend/v1/stv/students/getPrestudents/$1/$2/$3';
+$route['api/frontend/v1/treemenudata/stv/stdsem/:any/stg/(:any)/prestudent/1/stdsem/(:any)/(:any)/1'] = 'api/frontend/v1/stv/students/getPrestudents/$1/$2/$3';
+$route['api/frontend/v1/treemenudata/stv/stdsem/:any/stg/(:any)/prestudent/1/stdsem/(:any)'] = 'api/frontend/v1/stv/students/getPrestudents/$1/$2';
+$route['api/frontend/v1/treemenudata/stv/stdsem/:any/stg/(:any)/prestudent/1'] = 'api/frontend/v1/stv/students/getPrestudents/$1';

-// (studiengang_kz)/prestudent[/(studiensemester_kurzbz)[/(filter)[/(otherfilter)]]]
-$route['api/frontend/v1/stv/[sS]tudents/(-?[0-9]+)/prestudent'] = 'api/frontend/v1/stv/Students/getPrestudents/$1';
-$route['api/frontend/v1/stv/[sS]tudents/(-?[0-9]+)/prestudent/([WS]S[0-9]{4})'] = 'api/frontend/v1/stv/Students/getPrestudents/$1/$2';
-$route['api/frontend/v1/stv/[sS]tudents/(-?[0-9]+)/prestudent/([WS]S[0-9]{4})/(:any)'] = 'api/frontend/v1/stv/Students/getPrestudents/$1/$2/$3';
-$route['api/frontend/v1/stv/[sS]tudents/(-?[0-9]+)/prestudent/([WS]S[0-9]{4})/(:any)/(:any)'] = 'api/frontend/v1/stv/Students/getPrestudents/$1/$2/$4';
+$route['api/frontend/v1/treemenudata/stv/stdsem/:any/stg/(:any)/orgform/(:any)/prestudent/1/stdsem/(:any)/:any/1/:any/1/(:any)/1'] = 'api/frontend/v1/stv/students/getPrestudentsOrgform/$1/$2/$3/$4';
+$route['api/frontend/v1/treemenudata/stv/stdsem/:any/stg/(:any)/orgform/(:any)/prestudent/1/stdsem/(:any)/:any/1/(:any)/1'] = 'api/frontend/v1/stv/students/getPrestudentsOrgform/$1/$2/$3/$4';
+$route['api/frontend/v1/treemenudata/stv/stdsem/:any/stg/(:any)/orgform/(:any)/prestudent/1/stdsem/(:any)/(:any)/1'] = 'api/frontend/v1/stv/students/getPrestudentsOrgform/$1/$2/$3/$4';
+$route['api/frontend/v1/treemenudata/stv/stdsem/:any/stg/(:any)/orgform/(:any)/prestudent/1/stdsem/(:any)'] = 'api/frontend/v1/stv/students/getPrestudentsOrgform/$1/$2/$3';
+$route['api/frontend/v1/treemenudata/stv/stdsem/:any/stg/(:any)/orgform/(:any)/prestudent/1'] = 'api/frontend/v1/stv/students/getPrestudentsOrgform/$1/$2';

-// (studiengang_kz)/(orgform)/prestudent[/(studiensemester_kurzbz)[/(filter)[/(otherfilter)]]]
-$route['api/frontend/v1/stv/[sS]tudents/(-?[0-9]+)/([A-Z]{2,3})/prestudent'] = 'api/frontend/v1/stv/Students/getPrestudentsOrgform/$1/$2';
-$route['api/frontend/v1/stv/[sS]tudents/(-?[0-9]+)/([A-Z]{2,3})/prestudent/([WS]S[0-9]{4})'] = 'api/frontend/v1/stv/Students/getPrestudentsOrgform/$1/$2/$3';
-$route['api/frontend/v1/stv/[sS]tudents/(-?[0-9]+)/([A-Z]{2,3})/prestudent/([WS]S[0-9]{4})/(:any)'] = 'api/frontend/v1/stv/Students/getPrestudentsOrgform/$1/$2/$3/$4';
-$route['api/frontend/v1/stv/[sS]tudents/(-?[0-9]+)/([A-Z]{2,3})/prestudent/([WS]S[0-9]{4})/(:any)/(:any)'] = 'api/frontend/v1/stv/Students/getPrestudentsOrgform/$1/$2/$3/$5';
+$route['api/frontend/v1/treemenudata/stv/stdsem/(:any)/stg/(:any)/semester/(:any)/verband/(:any)/group/(:any)'] = 'api/frontend/v1/stv/students/getStudents/$1/$2/$3/$4/$5';
+$route['api/frontend/v1/treemenudata/stv/stdsem/(:any)/stg/(:any)/semester/(:any)/verband/(:any)'] = 'api/frontend/v1/stv/students/getStudents/$1/$2/$3/$4';
+$route['api/frontend/v1/treemenudata/stv/stdsem/(:any)/stg/(:any)/semester/(:any)'] = 'api/frontend/v1/stv/students/getStudents/$1/$2/$3';
+$route['api/frontend/v1/treemenudata/stv/stdsem/(:any)/stg/(:any)'] = 'api/frontend/v1/stv/students/getStudents/$1/$2';

-// (studiensemester_kurzbz)/(studiengang_kz)/(semester)/grp/(gruppe)
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/(-?[0-9]+)/(:num)/grp/(:any)'] = 'api/frontend/v1/stv/Students/getStudentsSpezialgruppe/$1/$2/$3/$4';
+$route['api/frontend/v1/treemenudata/stv/stdsem/(:any)/stg/(:any)/orgform/(:any)/semester/(:any)/verband/(:any)/group/(:any)'] = 'api/frontend/v1/stv/students/getStudentsOrgform/$1/$2/$3/$4/$5/$6';
+$route['api/frontend/v1/treemenudata/stv/stdsem/(:any)/stg/(:any)/orgform/(:any)/semester/(:any)/verband/(:any)'] = 'api/frontend/v1/stv/students/getStudentsOrgform/$1/$2/$3/$4/$5';
+$route['api/frontend/v1/treemenudata/stv/stdsem/(:any)/stg/(:any)/orgform/(:any)/semester/(:any)'] = 'api/frontend/v1/stv/students/getStudentsOrgform/$1/$2/$3/$4';
+$route['api/frontend/v1/treemenudata/stv/stdsem/(:any)/stg/(:any)/orgform/(:any)'] = 'api/frontend/v1/stv/students/getStudentsOrgform/$1/$2/$3';

-// (studiensemester_kurzbz)/(studiengang_kz)[/(semester)[/(verband)[/(gruppe)]]]
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/(-?[0-9]+)'] = 'api/frontend/v1/stv/Students/getStudents/$1/$2';
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/(-?[0-9]+)/(:num)'] = 'api/frontend/v1/stv/Students/getStudents/$1/$2/$3';
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/(-?[0-9]+)/(:num)/(:any)'] = 'api/frontend/v1/stv/Students/getStudents/$1/$2/$3/$4';
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/(-?[0-9]+)/(:num)/(:any)/(:any)'] = 'api/frontend/v1/stv/Students/getStudents/$1/$2/$3/$4/$5';
+$route['api/frontend/v1/treemenudata/stv/stdsem/(:any)/stg/(:any)/semester/(:any)/group/(:any)'] = 'api/frontend/v1/stv/students/getStudentsSpezialgruppe/$1/$2/$3/$4';

-// (studiensemester_kurzbz)/(studiengang_kz)/(orgform)/(semester)/grp/(gruppe)
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/(-?[0-9]+)/([A-Z]{2,3})/(:num)/grp/(:any)'] = 'api/frontend/v1/stv/Students/getStudentsOrgformSpezialgruppe/$1/$2/$3/$4/$5';
+$route['api/frontend/v1/treemenudata/stv/stdsem/(:any)/stg/(:any)/orgform/(:any)/semester/(:any)/group/(:any)'] = 'api/frontend/v1/stv/students/getStudentsOrgformSpezialgruppe/$1/$3/$2/$4/$5';

-// (studiensemester_kurzbz)/(studiengang_kz)/(orgform)[/(semester)[/(verband)[/(gruppe)]]]
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/(-?[0-9]+)/([A-Z]{2,3})'] = 'api/frontend/v1/stv/Students/getStudentsOrgform/$1/$2/$3';
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/(-?[0-9]+)/([A-Z]{2,3})/(:num)'] = 'api/frontend/v1/stv/Students/getStudentsOrgform/$1/$2/$3/$4';
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/(-?[0-9]+)/([A-Z]{2,3})/(:num)/(:any)'] = 'api/frontend/v1/stv/Students/getStudentsOrgform/$1/$2/$3/$4/$5';
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/(-?[0-9]+)/([A-Z]{2,3})/(:num)/(:any)/(:any)'] = 'api/frontend/v1/stv/Students/getStudentsOrgform/$1/$2/$3/$4/$5/$6';
+$route['api/frontend/v1/treemenudata/stv/stdsem/(:any)/prestudent/(:any)'] = 'api/frontend/v1/stv/students/getPrestudent/$1/$2';
+
+$route['api/frontend/v1/treemenudata/stv/stdsem/(:any)/student/(:any)'] = 'api/frontend/v1/stv/students/getStudent/$1/$2';
+
+$route['api/frontend/v1/treemenudata/stv/stdsem/(:any)/person/(:any)'] = 'api/frontend/v1/stv/students/getPerson/$1/$2';
+
+$route['api/frontend/v1/treemenudata/stv/.*'] = 'api/frontend/v1/stv/students/index';
+
+// Lvverwaltung List Routes
+$route['api/frontend/v1/treemenudata/lvverwaltung/stdsem/(:any)/stg/(:any)'] = 'api/frontend/v1/Lehrveranstaltung/getByStg/$1/$2';
+$route['api/frontend/v1/treemenudata/lvverwaltung/stdsem/(:any)/stg/(:any)/semester/(:any)'] = 'api/frontend/v1/Lehrveranstaltung/getByStg/$1/$2/$3';
+$route['api/frontend/v1/treemenudata/lvverwaltung/stdsem/(:any)/stg/(:any)/semester/(:any)/.*'] = 'api/frontend/v1/Lehrveranstaltung/getByStg/$1/$2/$3';
+$route['api/frontend/v1/treemenudata/lvverwaltung/stdsem/(:any)/stg/(:any)/orgform/(:any)'] = 'api/frontend/v1/Lehrveranstaltung/getByStg/$1/$2/$3';
+$route['api/frontend/v1/treemenudata/lvverwaltung/stdsem/(:any)/stg/(:any)/orgform/(:any)/.*'] = 'api/frontend/v1/Lehrveranstaltung/getByStg/$1/$2/$3';
+
+$route['api/frontend/v1/treemenudata/lvverwaltung/stdsem/(:any)/emp/(:any)'] = 'api/frontend/v1/Lehrveranstaltung/getByEmp/$1/$2';
+$route['api/frontend/v1/treemenudata/lvverwaltung/stdsem/(:any)/emp/(:any)/stg/(:any)'] = 'api/frontend/v1/Lehrveranstaltung/getByEmp/$1/$2/$3';
+$route['api/frontend/v1/treemenudata/lvverwaltung/stdsem/(:any)/emp/(:any)/stg/(:any)/.*'] = 'api/frontend/v1/Lehrveranstaltung/getByEmp/$1/$2/$3';

-// // (studiensemester_kurzbz)/uid/(uid)
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/uid/(:any)'] = 'api/frontend/v1/stv/Students/getStudent/$1/$2';
-// // (studiensemester_kurzbz)/prestudent/(prestudent_id)
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/prestudent/(:num)'] = 'api/frontend/v1/stv/Students/getPrestudent/$1/$2';
-// // (studiensemester_kurzbz)/person/(person_id)
-$route['api/frontend/v1/stv/[sS]tudents/([WS]S[0-9]{4})/person/(:num)'] = 'api/frontend/v1/stv/Students/getPerson/$1/$2';

 // load routes from extensions, also look for environment-specific configs
 $subdirs = ['application/config/extensions', 'application/config/' . ENVIRONMENT . '/extensions'];
@@ -197,3 +197,11 @@ $config['unterbrechung_enabled'] = true;
 */
 $config['wiederholung_enabled'] = true;

+/**
+ * Modal with Infotext of TLC
+ * if true, there will be shown an info modal in the studentsView after the first button ABMELDUNG
+ *
+ * @var boolean
+ */
+$config['showInfoModalAbmeldung'] = true;
+
@@ -1,6 +1,27 @@
 <?php

 $config['number_displayed_past_studiensemester_default'] = 5;
+
+# Additional columns:
+/*
+$config["list_columns"] = [
+	'fieldname' => [
+		'js' => 'path/to/snippet.js', // tabulator config snippet (eg: return { name: 'Name', field: 'fieldname' }; )
+		'default' => "SQL SELECT statement for value",
+		'joins' => [
+			// additional joins needed for the SELECT statement above
+			[
+				'tablename',
+				'join condition', // single fieldname for USING or full condition for ON
+				'LEFT|RIGHT', // optional - join type
+				'after_xxx|before_xxx|end' // optional - position in query
+			]
+			// ...
+		]
+	]
+];
+*/
+
 $config['tabs'] =
 	[
 		'details' => [
@@ -60,7 +81,13 @@ $config['tabs'] =
 		],
 		'notes' => [
 			//if true, the count of Messages will be shown in the header of the Tab Messages
-			'showCountNotes' => true
+			'showCountNotes' => true,
+
+			//if true: section with following fields will be displayed: 'verfasser', 'bearbeiter', 'von', 'bis' and 'erledigt'
+			'showErweitert' => false,
+
+			//notizlayout: choose of "classicFas", "twoColumnsFormLeft", twoColumnsFormRight, popupModal"
+			'notizLayout' => 'popupModal'
 		],
 		'combinePeople' => [
 			//multitab should only be shown with this length of selection
@@ -133,13 +160,25 @@ $config['students_tab_order'] = [

 $config['stv_prestudent_tags'] = [
 	'prioone' => ['readonly' => false],
-	'priotwo' => ['readonly' => true],
+	'priotwo' => ['readonly' => false],
 	'hinweis' => ['readonly' => false],
-	'hinweis_assistenz' => ['readonly' => true],
-	'hinweis_kf' => ['readonly' => true],
+	'hinweis_assistenz' => ['readonly' => false],
+	'hinweis_kf' => ['readonly' => false],
 	'hinweis_lehrende' => ['readonly' => false],
-	'hinweis_stg_kf' => ['readonly' => true],
-	'finished_stg' => ['readonly' => true],
-	'finished_kf' => ['readonly' => true],
-	'inwork_kf' => ['readonly' => true],
+	'hinweis_stg_kf' => ['readonly' => false],
+	'finished_stg' => ['readonly' => false],
+	'finished_kf' => ['readonly' => false],
+	'inwork_kf' => ['readonly' => false],
+	'dd_auto' => ['readonly' => true],
+	'wh_auto' => ['readonly' => true],
+	'prewh_auto' => ['readonly' => true],
+	'out_auto' => ['readonly' => true],
+	'zgv_auto' => ['readonly' => true],
+	'unterbrecher_auto' => ['readonly' => true],
+	'stbtr_erh_auto' => ['readonly' => true],
+	'jgv_auto' => ['readonly' => true],
+	'in_auto' => ['readonly' => true],
+	'preabbr_auto' => ['readonly' => true],
 ];
+
+$config['userAutomatedTags'] = 'sftest';
@@ -1,5 +1,7 @@
+<?php
+
 /**
- * Copyright (C) 2025 fhcomplete.org
+ * Copyright (C) 2026 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
@@ -15,29 +17,13 @@
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

-export default {
-	get(path) {
-		let url = 'api/frontend/v1/stv/verband';
-		if (path)
-			url += '/' + path;
-		return {
-			method: 'get',
-			url
-		};
-	},
-	favorites: {
-		get() {
-			return {
-				method: 'get',
-				url: 'api/frontend/v1/stv/favorites'
-			};
-		},
-		set(favorites) {
-			return {
-				method: 'post',
-				url: 'api/frontend/v1/stv/favorites/set',
-				params: { favorites }
-			};
-		}
-	}
-};
+if (!defined('BASEPATH')) exit('No direct script access allowed');
+
+$config['stv'] = [
+	"library" => "treemenu/StudVwLib",
+	"permissions" => ["admin:r", "assistenz:r"]
+];
+$config['lvv'] = [
+	"library" => "treemenu/LvVwLib",
+	"permissions" => ["admin:r", "assistenz:r"]
+];
@@ -0,0 +1,32 @@
+<?php
+
+/**
+ * Copyright (C) 2026 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');
+
+$config['root'] = [
+	'stg' => [
+		'semester' => [
+			'group',
+			'verband' => [
+				'group'
+			]
+		],
+		'orgform'
+	]
+];
@@ -0,0 +1,65 @@
+<?php
+
+/**
+ * Copyright (C) 2026 fhcomplete.org
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+if (!defined('BASEPATH')) exit('No direct script access allowed');
+
+$config['root'] = [
+	'stg' => [
+		'prestudent' => [
+			'stdsem' => [
+				'interessenten' => [
+					'bewerbungnichtabgeschickt',
+					'bewerbungabgeschickt',
+					'zgv',
+					'statusbestaetigt' => [
+						'statusbestaetigtrtnichtangemeldet',
+						'statusbestaetigtrtangemeldet'
+					],
+					'reihungstestnichtangemeldet',
+					'reihungstestangemeldet'
+				],
+				'bewerber' => [
+					'bewerberrtnichtangemeldet',
+					'bewerberrtangemeldet' => [
+						'bewerberrtangemeldetteilgenommen',
+						'bewerberrtangemeldetnichtteilgenommen'
+					]
+				],
+				'aufgenommen',
+				'warteliste',
+				'absage',
+				'incoming'
+			]
+		],
+		'semester' => [
+			'group',
+			'verband' => [
+				'group'
+			]
+		]
+	],
+	'inout' => [
+		'incoming',
+		'outgoing',
+		'shared_studies'
+	]
+];
+
+// copy stg tree into stg/orgforms
+$config['root']['stg']['orgform'] = $config['root']['stg'];
@@ -0,0 +1,44 @@
+<?php
+/**
+ * Copyright (C) 2026 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');
+
+/**
+ * This controller redirects urls to another location. This is mainly used
+ * with the $routes config
+ */
+class Redirect extends CI_Controller
+{
+	public function __construct()
+	{
+		parent::__construct();
+	}
+
+	/**
+	 * Main function to handle all redirects.
+	 *
+	 * @param string				$method - the redirect code (30x)
+	 * @param array					$params - the url to redirect to
+	 *
+	 * @return void
+	 */
+	public function _remap($method, $params)
+	{
+		redirect($params, 'location', $method);
+	}
+}
@@ -22,6 +22,10 @@ use CI3_Events as Events;

 class Abgabe extends FHCAPI_Controller
 {
+	// col limits of lehre.tbl_projektarbeit, exceeding them aborts the zusatzdaten update and lead to unpublishable enduploads
+	const MAX_LEN_SCHLAGWOERTER = 150;	// varchar(150)
+	const MAX_LEN_ABSTRACT = 5000;		// text, capped to match the ui counter
+	const MAX_SEITENANZAHL = 32767;		// smallint

 	/**
 	 * Object initialization
@@ -323,6 +327,13 @@ class Abgabe extends FHCAPI_Controller

 		$this->checkProjektarbeitForFinishedStatus($projektarbeit_id);

+		// block uploads for quality gate termine that are already graded
+		$this->checkPaabgabeForGradedStatus($paabgabe_id);
+
+		// the posted typ is client state only - verify it against the row so a stale ui cannot push an
+		// endabgabe through here, which would mark the abgabe without ever writing the zusatzdaten
+		$this->checkPaabgabeTypForZwischenabgabe($paabgabe_id, $paabgabetyp_kurzbz);
+
 		// load the $student_uid by $projektarbeit_id so we dont need any post params
 		$this->load->model('education/Projektarbeit_model', 'ProjektarbeitModel');
 		$res = $this->ProjektarbeitModel->getStudentInfoForProjektarbeitId($projektarbeit_id);
@@ -335,11 +346,11 @@ class Abgabe extends FHCAPI_Controller
 		$data = getData($res)[0];
 		$student_uid = $data->uid;
 		$studiengang_kz = $data->studiengang_kz;
-		
+
 		if(!$this->checkZuordnung($projektarbeit_id, getAuthUID(), $student_uid, $studiengang_kz)) {
 			$this->terminateWithError($this->p->t('abgabetool', 'c4noZuordnungBetreuerStudent', [getAuthUID(), $student_uid]));
 		}
-			
+
 		$path = PAABGABE_PATH.$paabgabe_id.'_'.$student_uid.'.pdf';
 		
 		if ((isset($_FILES) and isset($_FILES['file']) and ! $_FILES['file']['error'])) {
@@ -400,8 +411,10 @@ class Abgabe extends FHCAPI_Controller
 			$this->terminateWithError($this->p->t('global', 'wrongParameters'), 'general');
 		}

+		$this->checkZusatzdatenLengths($schlagwoerter, $schlagwoerter_en, $abstract, $abstract_en, $seitenanzahl);
+
 		$this->checkPaabgabeDeadline($paabgabe_id);
-		
+
 		$this->checkProjektarbeitForFinishedStatus($projektarbeit_id);
 		
 		// load the $student_uid by $projektarbeit_id so we dont need any post params
@@ -450,17 +463,25 @@ class Abgabe extends FHCAPI_Controller
 				$this->checkAbgabeSignatur($paabgabe, $projektarbeit->student_uid);
 				$signaturstatus = $paabgabe->signatur;

-					// update projektarbeit cols with zusatzdaten AND abgabedatum!
-					$this->ProjektarbeitModel->update($projektarbeit->projektarbeit_id, array(
-						'sprache' => $sprache,
-						'seitenanzahl' => $seitenanzahl,
-						'abgabedatum' => date('Y-m-d'),
-						'schlagwoerter_en' => $schlagwoerter_en,
-						'schlagwoerter' => $schlagwoerter,
-						'abstract' => $abstract,
-						'abstract_en' => $abstract_en
-					));
+				// update projektarbeit cols with zusatzdaten AND abgabedatum!
+				$updateRes = $this->ProjektarbeitModel->update($projektarbeit->projektarbeit_id, array(
+					'sprache' => $sprache,
+					'seitenanzahl' => $seitenanzahl,
+					'abgabedatum' => date('Y-m-d'),
+					'schlagwoerter_en' => $schlagwoerter_en,
+					'schlagwoerter' => $schlagwoerter,
+					'abstract' => $abstract,
+					'abstract_en' => $abstract_en
+				));

+				// abort before marking the abgabe - a failed update used to leave the projektarbeit without
+				// abgabedatum and zusatzdaten while the endupload counted as done, blocking the publication
+				if(isError($updateRes)) {
+					$this->logLib->logInfoDB(array('endupload projektarbeit update failed', getError($updateRes),
+						$projektarbeit_id, $paabgabe_id, getAuthUID(), getAuthPersonId()));
+
+					$this->terminateWithError($this->p->t('abgabetool', 'c4enduploadZusatzdatenSpeichernFehlgeschlagen'), 'general');
+				}

 				// update paabgabe datum
 				$res = $this->PaabgabeModel->update($paabgabe_id, array(
@@ -947,6 +968,16 @@ class Abgabe extends FHCAPI_Controller
 		$paabgabeArr = $this->getDataOrTerminateWithError($result, 'general');
 		$paabgabe = $paabgabeArr[0];

+		// resolve the insert/update user full names so the frontend info string ("saved at X by Y")
+		// renders immediately for freshly created/updated termine without needing a reload.
+		$this->load->model('person/Person_model', 'PersonModel');
+		if(!empty($paabgabe->insertvon)) {
+			$paabgabe->insertvon_fullname = getData($this->PersonModel->getFullName($paabgabe->insertvon));
+		}
+		if(!empty($paabgabe->updatevon)) {
+			$paabgabe->updatevon_fullname = getData($this->PersonModel->getFullName($paabgabe->updatevon));
+		}
+
 		// check if abgabe even has note
 		if($paabgabe->note) {
 			$this->load->model('education/Note_model', 'NoteModel');
@@ -1057,6 +1088,22 @@ class Abgabe extends FHCAPI_Controller
 				$this->terminateWithError($this->p->t('global', 'wrongParameters'), 'general');
 			}

+			// a termin with an upload or a note must keep its typ and datum.
+			// the table only hides those rows client side, so a student upload
+			// after the table was loaded would otherwise still let a zwischenabgabe be retyped to 'end'
+			$existingPaabgabe = $paabgabeArr[0];
+
+			if($existingPaabgabe->note !== null || $existingPaabgabe->abgabedatum !== null) {
+				if(isset($updateFields['paabgabetyp_kurzbz'])
+					&& $updateFields['paabgabetyp_kurzbz'] !== $existingPaabgabe->paabgabetyp_kurzbz) {
+					$this->terminateWithError($this->p->t('abgabetool', 'c4abgabetypAendernNichtErlaubt'));
+				}
+
+				if(isset($updateFields['datum']) && $updateFields['datum'] !== $existingPaabgabe->datum) {
+					$this->terminateWithError($this->p->t('abgabetool', 'c4datumAendernNichtErlaubt'));
+				}
+			}
+
 			$result = $this->PaabgabeModel->update(
 				$paabgabe_id,
 				array_merge($updateFields, [
@@ -1570,7 +1617,9 @@ class Abgabe extends FHCAPI_Controller

 			$this->terminateWithError($this->p->t('global', 'wrongParameters'), 'general');
 		}
-			
+
+		$this->checkZusatzdatenLengths($schlagwoerter, $schlagwoerter_en, $abstract, $abstract_en, $seitenanzahl);
+
 		$this->load->model('education/Projektarbeit_model', 'ProjektarbeitModel');

 		
@@ -1605,7 +1654,7 @@ class Abgabe extends FHCAPI_Controller
 		}
 		
 		// update projektarbeit cols with zusatzdaten only
-		$this->ProjektarbeitModel->update($projektarbeit_id, array(
+		$updateRes = $this->ProjektarbeitModel->update($projektarbeit_id, array(
 			'sprache' => $sprache,
 			'seitenanzahl' => $seitenanzahl,
 			'schlagwoerter_en' => $schlagwoerter_en,
@@ -1614,6 +1663,9 @@ class Abgabe extends FHCAPI_Controller
 			'abstract_en' => $abstract_en
 		));

+		// dont report success on a failed update, otherwise a repair attempt silently changes nothing
+		$this->getDataOrTerminateWithError($updateRes, 'general');
+
 		$this->logLib->logInfoDB(array('zusatzdatenEditMitarbeiter', array(
 			'updatevon' => getAuthUID(),
 			'updateamum' => date('Y-m-d H:i:s')
@@ -1996,13 +2048,59 @@ class Abgabe extends FHCAPI_Controller

 		$data = getData($res)[0];
 		if($data->note !== NULL) {
-			// hardcode this error msg cause phrasen arent reliable and people keep bugging why the cant edit old entries they definitely shouldnt update
-			$message = $this->p->t('abgabetool','c4fehlerAktualitaetProjektarbeitv3');
-			if(strpos($message, "<<") === 0) { // phrase could not be loaded
-				$this->terminateWithError('Die Projektarbeit wurde bereits benotet, Sie dürfen deshalb keine weiteren Termine anlegen oder bearbeiten.', 'general');
-			} else {
-				$this->terminateWithError($message);
-			}
+			$this->terminateWithError($this->p->t('abgabetool','c4fehlerAktualitaetProjektarbeitv3'));
+		}
+	}
+
+	// validates the zusatzdaten against the column limits of lehre.tbl_projektarbeit.
+	private function checkZusatzdatenLengths($schlagwoerter, $schlagwoerter_en, $abstract, $abstract_en, $seitenanzahl) {
+		if(mb_strlen((string)$schlagwoerter) > self::MAX_LEN_SCHLAGWOERTER
+			|| mb_strlen((string)$schlagwoerter_en) > self::MAX_LEN_SCHLAGWOERTER) {
+			$this->terminateWithError($this->p->t('abgabetool', 'c4schlagwoerterZuLang', array(self::MAX_LEN_SCHLAGWOERTER)), 'general');
+		}
+
+		if(mb_strlen((string)$abstract) > self::MAX_LEN_ABSTRACT
+			|| mb_strlen((string)$abstract_en) > self::MAX_LEN_ABSTRACT) {
+			$this->terminateWithError($this->p->t('abgabetool', 'c4abstractZuLang', array(self::MAX_LEN_ABSTRACT)), 'general');
+		}
+
+		if(!is_numeric($seitenanzahl) || (int)$seitenanzahl < 1 || (int)$seitenanzahl > self::MAX_SEITENANZAHL) {
+			$this->terminateWithError($this->p->t('abgabetool', 'c4seitenanzahlUngueltig', array(self::MAX_SEITENANZAHL)), 'general');
+		}
+	}
+
+	// zwischenabgabe uploads must never touch an endabgabe termin, to avoid empty zusatzdaten
+	private function checkPaabgabeTypForZwischenabgabe($paabgabe_id, $posted_paabgabetyp_kurzbz) {
+		$this->load->model('education/Paabgabe_model', 'PaabgabeModel');
+		$res = $this->PaabgabeModel->load($paabgabe_id);
+
+		if(isError($res) || !hasData($res)) {
+			$this->terminateWithError($this->p->t('abgabetool', 'c4projektabgabeNichtGefunden'), 'general');
+		}
+
+		$paabgabe = getData($res)[0];
+
+		if($paabgabe->paabgabetyp_kurzbz === 'end') {
+			$this->terminateWithError($this->p->t('abgabetool', 'c4enduploadUeberZwischenabgabeNichtErlaubt'), 'general');
+		}
+
+		// typ changed between page load and upload -> the client would use the wrong upload path
+		if($paabgabe->paabgabetyp_kurzbz !== $posted_paabgabetyp_kurzbz) {
+			$this->terminateWithError($this->p->t('abgabetool', 'c4abgabeterminGeaendertNeuLaden'), 'general');
+		}
+	}
+
+	private function checkPaabgabeForGradedStatus($paabgabe_id) {
+		$this->load->model('education/Paabgabe_model', 'PaabgabeModel');
+		$res = $this->PaabgabeModel->load($paabgabe_id);
+
+		if(isError($res) || !hasData($res)) {
+			$this->terminateWithError($this->p->t('abgabetool', 'c4projektabgabeNichtGefunden'), 'general');
+		}
+
+		$paabgabe = getData($res)[0];
+		if($paabgabe->note !== NULL) {
+			$this->terminateWithError($this->p->t('abgabetool', 'c4studentAbgabeNotAllowedRegularv3'));
 		}
 	}

@@ -91,6 +91,8 @@ class CisMenu extends FHCAPI_Controller
 		$doc->loadXML($menuItem->content);
 		$urlElem = $doc->getElementsByTagName('url')->item(0);

+		$this->menuItemUrlTargetHelper($menuItem, $doc);
+
 		if (!$urlElem) {
 			return '';
 		}
@@ -122,5 +124,18 @@ class CisMenu extends FHCAPI_Controller
 		return $url;
 	}

+	private function menuItemUrlTargetHelper($menuItem, $xmldoc)
+	{
+		if($menuItem->template_kurzbz === 'redirect')
+		{
+			$targetElem = $xmldoc->getElementsByTagName('target')->item(0);
+			$target = ($targetElem) ? $targetElem->textContent : '';
+			if(!in_array($target, array('_self', '_top', '_blank')))
+			{
+				$target = '_self';
+			}
+			$menuItem->target = $target;
+		}
+	}
 }

@@ -20,8 +20,8 @@ if (! defined('BASEPATH')) exit('No direct script access allowed');

 /**
 * This controller operates between (interface) the JS (GUI) and the back-end
- * Provides data to the ajax get calls about favorite verbände
- * Listens to ajax post calls to change the favorite verbände data
+ * Provides data to the ajax get calls about favorite treemenu entries
+ * Listens to ajax post calls to change the favorite treemenu entries
 * This controller works with JSON calls on the HTTP GET or POST and the output is always JSON
 */
 class Favorites extends FHCAPI_Controller
@@ -29,7 +29,7 @@ class Favorites extends FHCAPI_Controller
 	public function __construct()
 	{
 		parent::__construct([
-			'index' => self::PERM_LOGGED,
+			'get' => self::PERM_LOGGED,
 			'set' => self::PERM_LOGGED
 		]);

@@ -37,19 +37,19 @@ class Favorites extends FHCAPI_Controller
 		$this->load->model('system/Variable_model', 'VariableModel');
 	}

-	public function index()
+	public function get($app)
 	{
-		$result = $this->VariableModel->getVariables(getAuthUID(), ['stv_favorites']);
+		$result = $this->VariableModel->getVariables(getAuthUID(), [$app . '_favorites']);

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

 		if (!$data)
 			$this->terminateWithSuccess(null);
 		else
-			$this->terminateWithSuccess($data['stv_favorites'] ?? null);
+			$this->terminateWithSuccess($data[$app . '_favorites'] ?? null);
 	}

-	public function set()
+	public function set($app)
 	{
 		$this->load->library('form_validation');

@@ -60,7 +60,7 @@ class Favorites extends FHCAPI_Controller

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

-		$result = $this->VariableModel->setVariable(getAuthUID(), 'stv_favorites', $favorites);
+		$result = $this->VariableModel->setVariable(getAuthUID(), $app . '_favorites', $favorites);

 		$this->getDataOrTerminateWithError($result);
 		
@@ -56,7 +56,9 @@ class Lehrveranstaltung extends FHCAPI_Controller

 		$studiensemester_kurzbz = $this->getStudiensemesterKurzbz($studiensemester_kurzbz);

-		$lehrveranstaltungen = $this->_ci->LehreinheitModel->getLvsByEmployee($mitarbeiter_uid, $studiensemester_kurzbz, $stg_kz);
+		$studiengang_kz = $this->getStudiengangKz($stg_kz);
+
+		$lehrveranstaltungen = $this->_ci->LehreinheitModel->getLvsByEmployee($mitarbeiter_uid, $studiensemester_kurzbz, $studiengang_kz);
 		$lehrveranstaltungen_data = $this->getDataOrTerminateWithError($lehrveranstaltungen);

 		$tree = [];
@@ -75,15 +77,17 @@ class Lehrveranstaltung extends FHCAPI_Controller

 		$this->terminateWithSuccess($tree);
 	}
-	public function getByStg($studiensemester_kurzbz = null, $studiengang_kz = null, $semester = null)
+	public function getByStg($studiensemester_kurzbz = null, $stg_kz = null, $semester = null)
 	{
-		if (is_null($studiengang_kz) || !preg_match("/^-?[1-9][0-9]*$/", (string)$studiengang_kz))
+		$studiengang_kz = $this->getStudiengangKz($stg_kz);
+
+		if (is_null($studiengang_kz) || !preg_match("/^(-?[1-9][0-9]*|0)$/", (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;
+			$verband = $this->getOrgformKurzbz($semester);
 			$semester = null;
 		}

@@ -260,18 +264,53 @@ class Lehrveranstaltung extends FHCAPI_Controller
 		}
 	}

+	protected function getStudiengangKz($studiengang_typ_kurzbz)
+	{
+		$this->load->model('organisation/Studiengang_model', 'StudiengangModel');
+		$result = $this->StudiengangModel->loadWhere([
+			'LOWER(CONCAT(typ, kurzbz)) =' => strtolower($studiengang_typ_kurzbz)
+		]);
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		if (!$data)
+			return null;
+
+		return current($data)->studiengang_kz;
+	}
+
 	private function getStudiensemesterKurzbz($studiensemester_kurzbz = null)
 	{
 		if (!is_null($studiensemester_kurzbz))
 		{
-			$studiensemester_result = $this->_ci->StudiensemesterModel->load($studiensemester_kurzbz);
+			$studiensemester_result = $this->_ci->StudiensemesterModel->loadWhere([
+				'LOWER(studiensemester_kurzbz)' => strtolower($studiensemester_kurzbz)
+			]);

 			if (isError($studiensemester_result) || !hasData($studiensemester_result))
-				$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+				$this->terminateWithError($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);
 	}
+
+	protected function getOrgformKurzbz($orgform_kurzbz)
+	{
+		if ($orgform_kurzbz === null)
+			return null;
+
+		$this->load->model('codex/Orgform_model', 'OrgformModel');
+		$result = $this->OrgformModel->loadWhere([
+			'LOWER(orgform_kurzbz) =' => strtolower($orgform_kurzbz)
+		]);
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		if (!$data)
+			return $orgform_kurzbz;
+
+		return current($data)->orgform_kurzbz;
+	}
 }
@@ -49,6 +49,8 @@ class LvPlan extends FHCAPI_Controller
 			'getLehrverband' => self::PERM_LOGGED,
 			'permissionOtherLvPlan' => self::PERM_LOGGED,
 			'compactibleEventTypes' => self::PERM_LOGGED,
+			'getLeEvents' => self::PERM_LOGGED,
+			'getLvEvents' => self::PERM_LOGGED,
 		]);

 		$this->load->library('LogLib');
@@ -60,7 +62,13 @@ class LvPlan extends FHCAPI_Controller
 			'dbExecuteUser' => 'RESTful API'
 		));

-		$this->load->library('form_validation');
+        $this->load->library('form_validation');
+		$this->load->library('PhrasesLib');
+		$this->loadPhrases(
+			array(
+				'ui'
+			)
+		);
 	}

 	//------------------------------------------------------------------------------------------------------------------
@@ -106,6 +114,7 @@ class LvPlan extends FHCAPI_Controller

 		// fetching lvplan events
 		$result = $this->stundenplanlib->getEventsUser($start_date, $end_date, $uid);
+
 		$lvplanEvents = $this->getDataOrTerminateWithError($result);

 		// fetching moodle events
@@ -196,6 +205,38 @@ class LvPlan extends FHCAPI_Controller
 		));
 	}

+	public function getLeEvents($le_id = null, $start_date = null, $end_date = null, $stundenplan = 'stundenplandev')
+	{
+
+		if (is_null($le_id) || is_null($start_date) || is_null($end_date))
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		if ($stundenplan !== 'stundenplandev' && $stundenplan !== 'stundenplan')
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$this->load->library('StundenplanLib');
+
+		$result = $this->stundenplanlib->getEventsByLE($le_id, $start_date, $end_date, $stundenplan);
+		$lvplanEvents = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess($lvplanEvents);
+	}
+
+	public function getLvEvents($lv_id = null, $start_date = null, $end_date = null, $stundenplan = 'stundenplandev')
+	{
+		if (is_null($lv_id) || is_null($start_date) || is_null($end_date))
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		if ($stundenplan !== 'stundenplandev' && $stundenplan !== 'stundenplan')
+			$this->terminateWithError($this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$this->load->library('StundenplanLib');
+
+		$result = $this->stundenplanlib->getEventsByLV($lv_id, $start_date, $end_date, $stundenplan);
+
+		$this->terminateWithSuccess(hasData($result) ? getData($result) : []);
+	}
+
 	//TODO: delete this function if we don't use the old calendar export endpoints anymore
 	public function studiensemesterDateInterval($date)
 	{
@@ -17,60 +17,61 @@
 */

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

 class OtherLvPlan extends FHCAPI_Controller
 {

-    /**
-     * Object initialization
-     */
-    public function __construct()
-    {
-        parent::__construct([
-            'otherLvPlanViewData' => ['basis/other_lv_plan:r'],
-        ]);
+	/**
+	 * Object initialization
+	 */
+	public function __construct()
+	{
+		parent::__construct([
+			'otherLvPlanViewData' => ['basis/other_lv_plan:r'],
+		]);

-        $this->load->model('ressource/mitarbeiter_model', 'MitarbeiterModel');
-        $this->load->model('person/Benutzer_model', 'BenutzerModel');
+		$this->load->model('ressource/mitarbeiter_model', 'MitarbeiterModel');
+		$this->load->model('person/Benutzer_model', 'BenutzerModel');
+		$this->load->library('ProfilLib');

-    }
+	}

-    //------------------------------------------------------------------------------------------------------------------
-    // Public methods
+	//------------------------------------------------------------------------------------------------------------------
+	// Public methods

-    /**
-     * retrieves viewData for other lv plan view
-     * @access public
-     * @param  $uid the userID for which the other lv plan is being viewed
-     */
-    public function otherLvPlanViewData($uid)
-    {
-        $isMitarbeiterResult = $this->MitarbeiterModel->isMitarbeiter($uid);
-        $isMitarbeiter = getData($isMitarbeiterResult);
-        $isStudent = !$isMitarbeiter;
+	/**
+	 * retrieves viewData for other lv plan view
+	 * @access public
+	 * @param  $uid the userID for which the other lv plan is being viewed
+	 */
+	public function otherLvPlanViewData($uid)
+	{
+		$isMitarbeiterResult = $this->MitarbeiterModel->isMitarbeiter($uid);
+		$isMitarbeiter = getData($isMitarbeiterResult);
+		$isStudent = !$isMitarbeiter;

-        $this->BenutzerModel->addSelect(["foto", "vorname", "nachname"]);
-        $this->BenutzerModel->addJoin("tbl_person", "person_id");
-        $personResult = $this->BenutzerModel->load([$uid]);
-        $person = hasData($personResult) ? getData($personResult) : null;
+		$resProfileData = $this->profillib->getView($uid);
+		$profileData = hasData($resProfileData) ? getData($resProfileData) : null;

-        $viewData = [
-            "user_data" => [
-                "username" => $uid,
-                "is_student" => $isStudent,
-                "is_mitarbeiter" => $isMitarbeiter,
-                "foto" => $person[0]->foto,
-                "vorname" => $person[0]->vorname,
-                "nachname" => $person[0]->nachname,
-            ],
-        ];
+		$viewData = [
+			"user_data" => [
+				"username" => $uid,
+				"is_student" => $isStudent,
+				"is_mitarbeiter" => $isMitarbeiter,
+				"foto" => $profileData->data->foto,
+				"vorname" => $profileData->data->vorname,
+				"nachname" => $profileData->data->nachname,
+				"titel" => $profileData->data->titel,
+				"postnomen" => $profileData->data->postnomen,
+			],
+		];

-        $this->terminateWithSuccess($viewData);
-    }
+		$this->terminateWithSuccess($viewData);
+	}

-    // -----------------------------------------------------------------------------------------------------------------
-    // Private methods
+	// -----------------------------------------------------------------------------------------------------------------
+	// Private methods

 }

@@ -167,7 +167,9 @@ class Studium extends FHCAPI_Controller
 		if($aktuelles_studienplan){
 			$lehrveranstaltungen = $this->computeStudienplanLehrveranstaltungen($aktuelles_studienplan->studienplan_id, $aktuelles_semester);
 			foreach($lehrveranstaltungen as $lehrv){
-				foreach($lehrv->lehrveranstaltungen as $lv){
+				// a lehrveranstaltung without a modul has no children and gets its lektoren directly
+				$lvs = isset($lehrv->lehrveranstaltungen) ? $lehrv->lehrveranstaltungen : [$lehrv];
+				foreach($lvs as $lv){
 					$lvLektoren =$this->computeLektorenFromLehrveranstaltung($lv->lehrveranstaltung_id,$aktuelles_semester, $aktuelles_studiengang->studiengang_kz, $aktuelles_studiensemester->studiensemester_kurzbz);
 					$lv->lektoren = $lvLektoren;
 				}
@@ -286,6 +288,7 @@ SELECT tbl_lehrveranstaltung.*,
 		$lehrveranstaltungen = $this->LehrveranstaltungModel->execReadOnlyQuery($query,[$studienplan_id, $semester]);
 		
 		$lehrveranstaltungen = $this->getDataOrTerminateWithError($lehrveranstaltungen);
+		
 		usort($lehrveranstaltungen, function($a, $b){
 			if($a->lehrtyp_kurzbz == "modul"){
 				return -1;
@@ -302,12 +305,17 @@ SELECT tbl_lehrveranstaltung.*,
 			}
 			else{
 				$parent =array_filter($carry, function($item)use($lehrv){
-					return $item->studienplan_lehrveranstaltung_id == $lehrv->studienplan_lehrveranstaltung_id_parent;
+					return isset($item->lehrveranstaltungen)
+						&& $item->studienplan_lehrveranstaltung_id == $lehrv->studienplan_lehrveranstaltung_id_parent;
 				});
 				$parent = current($parent);
 				if($parent){
 					$parent->lehrveranstaltungen[] = $lehrv;
 				}
+				else{
+					// lehrveranstaltung without a modul: keep it on the top level
+					array_push($carry, $lehrv);
+				}
 			}
 			return $carry;
 		}, []);
@@ -0,0 +1,162 @@
+<?php
+/**
+ * Copyright (C) 2024 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');
+
+/**
+ * This controller operates between (interface) the JS (GUI) and the PhrasesLib (back-end)
+ * Provides data to the ajax get calls about the Phrasen plugin
+ * This controller works with JSON calls on the HTTP GET and the output is always JSON
+ */
+class TabulatorPresets extends FHCAPI_Controller
+{
+	public function __construct()
+	{
+		parent::__construct([
+			'getTabulatorPresets' => self::PERM_LOGGED,
+			'createTabulatorPreset' => self::PERM_LOGGED,
+			'updateTabulatorPreset' => self::PERM_LOGGED,
+			'deleteTabulatorPreset' => self::PERM_LOGGED,
+		]);
+
+		$this->load->model('tabulator/Tabulator_preset_model', 'TabulatorPresetModel');
+
+		$this->loadPhrases([
+			'global',
+			'tabulator_presets'
+		]);
+	}
+	
+	//------------------------------------------------------------------------------------------------------------------
+	// Public methods
+
+	public function getTabulatorPresets()
+	{
+		$tableName = $this->input->get("tableName");
+		if (!$tableName) {
+			$this->terminateWithError(error($this->p->t("tabulator_presets", "invalid_params_err_msg")));
+		}
+
+		$uid = getAuthUID();
+		$presets = $this->TabulatorPresetModel->getTabulatorPresetsByUserAndTable($uid, $tableName);
+		$presetsData = $this->getDataOrTerminateWithError($presets) ?? [];
+
+		$this->terminateWithSuccess($presetsData);
+	}
+
+	public function createTabulatorPreset()
+	{
+		$tableName = $this->input->post("tableName");
+		$presetName = $this->input->post("presetName");
+		$preset = $this->input->post("preset");
+
+		if (!$tableName || !$presetName || !$preset) {
+			$this->terminateWithError($this->p->t("tabulator_presets", "invalid_params_err_msg"), "general", 400);
+		}
+
+		$uid = getAuthUID();
+
+		$existingPresetsResult = $this->TabulatorPresetModel->getTabulatorPresetsByUserAndTable($uid, $tableName);
+		$existingPresets = $this->getDataOrTerminateWithError($existingPresetsResult) ?? [];
+
+		if (count($existingPresets) > 19) {
+			$this->terminateWithError($this->p->t("tabulator_presets", "max_presets_count_err_msg"), "general", 409);
+		}
+
+		$existingPresetNames = array_map(function($presetInfo) {
+			return $presetInfo->preset_name;
+		}, $existingPresets);
+
+		if (in_array($presetName, $existingPresetNames)) {
+			$this->terminateWithError($this->p->t("tabulator_presets", "preset_name_duplicate_err_msg"), "general", 409);
+		}
+
+		$presetCreationResult = $this->TabulatorPresetModel->createTabulatorPreset($uid, $tableName, $presetName, $preset);
+
+		if (isError($presetCreationResult)) {
+			$this->terminateWithError($presetCreationResult->retval);
+		}
+
+		$newPresetData = $this->TabulatorPresetModel->getTabulatorPreset($presetCreationResult->retval);
+		$newPresetArray = $this->getDataOrTerminateWithError($newPresetData) ?? [null];
+		$newPreset = $newPresetArray[0];
+
+		$this->terminateWithSuccess($newPreset);
+	}
+
+	public function updateTabulatorPreset()
+	{
+		$presetId = $this->input->post("presetId");
+		$preset = $this->input->post("preset");
+
+		if (!$presetId || !$preset) {
+			$this->terminateWithError($this->p->t("tabulator_presets", "invalid_params_err_msg"), "general", 400);
+		} 
+
+		$existingPresetData = $this->TabulatorPresetModel->getTabulatorPreset($presetId);
+		$existingPresetArray = $this->getDataOrTerminateWithError($existingPresetData) ?? [null];
+		$existingPreset = $existingPresetArray[0];
+		if (!$existingPreset) {
+			$this->terminateWithError($this->p->t("tabulator_presets", "preset_not_found_err_msg"), "general", 404);
+		}
+
+		$uid = getAuthUID();
+		if ($existingPreset->benutzer_uid !== $uid) {
+			$this->terminateWithError($this->p->t("tabulator_presets", "preset_not_own_update_err_msg"), "general", 403);
+		}
+
+		$presetUpdateResult = $this->TabulatorPresetModel->updateTabulatorPreset($presetId, $preset);
+		if (isError($presetUpdateResult)) {
+			$this->terminateWithError($presetUpdateResult->retval);
+		}
+
+		$updatedPresetData = $this->TabulatorPresetModel->getTabulatorPreset($presetId);
+		$updatedPresetArray = $this->getDataOrTerminateWithError($updatedPresetData) ?? [null];
+		$updatedPreset = $updatedPresetArray[0];
+
+		$this->terminateWithSuccess($updatedPreset);
+	}
+
+	public function deleteTabulatorPreset()
+	{
+		$presetId = $this->input->post("presetId");
+		if (!$presetId) {
+			$this->terminateWithError($this->p->t("tabulator_presets", "invalid_params_err_msg"), "general", 400);
+		}
+
+		$presetData = $this->TabulatorPresetModel->getTabulatorPreset($presetId);
+		$presetArray = $this->getDataOrTerminateWithError($presetData) ?? [null];
+		$preset = $presetArray[0];
+		if (!$preset) {
+			$this->terminateWithError($this->p->t("tabulator_presets", "preset_not_found_err_msg"), "general", 404);
+		}
+
+		$uid = getAuthUID();
+		if ($preset->benutzer_uid !== $uid) {
+			$this->terminateWithError($this->p->t("tabulator_presets", "preset_not_own_delete_err_msg"), "general", 403);
+		}
+
+		$presetDeletionResult = $this->TabulatorPresetModel->deleteTabulatorPreset($presetId);
+		if (isError($presetDeletionResult)) {
+			$this->terminateWithError($presetDeletionResult->retval);
+		}
+
+		$this->terminateWithSuccess();
+	}
+
+}
@@ -0,0 +1,148 @@
+<?php
+
+/**
+ * Copyright (C) 2026 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');
+
+use \ReflectionMethod as ReflectionMethod;
+use \ReflectionFunction as ReflectionFunction;
+
+/**
+ * This controller operates between (interface) the JS (GUI) and the back-end
+ * Provides data to the ajax get calls about menues
+ * This controller works with JSON calls on the HTTP GET or POST and the output is always JSON
+ */
+class Treemenu extends FHCAPI_Controller
+{
+	public function __construct()
+	{
+		// Load Router
+		$router = load_class('Router');
+
+		// Load Config
+		$config = load_class('Config');
+		$config->load('treemenu');
+
+		// Get Treemenu name & config
+		$name = $router->method;
+		$conf = $config->item($name);
+		
+		// Get Permissions from config
+		$permissions = $conf['permissions'] ?? self::PERM_ANONYMOUS;
+
+		// Call constructor
+		parent::__construct([
+			$name => $permissions
+		]);
+
+		// Load Library
+		$libraryName = $conf['library'] ?? null;
+		$this->load->library($libraryName, null, 'treemenulib');
+	}
+	
+	/**
+	 * @param string		$method
+	 * @param array			$params				(optional)
+	 *
+	 * @return void
+	 */
+	public function _remap($method, $params = [])
+	{
+		if (!$this->treemenulib)
+			show_404();
+
+		$this->addMeta('ci_method', $method);
+		$this->addMeta('ci_params', $params);
+		
+		$params = $this->uri->uri_to_assoc(6); // 6 = start of $params
+		$config = $this->treemenulib->config;
+
+		foreach (array_keys($params) as $key) {
+			if (!isset($config[$key]) || !$config[$key])
+				show_404();
+
+			$config = $config[$key];
+		}
+
+		// Prepare aliases
+		$argumentaliases = [];
+		if (property_exists($this->treemenulib, 'path_to_argument'))
+			$argumentaliases = array_flip($this->treemenulib->path_to_argument);
+		$methodaliases = [];
+		if (property_exists($this->treemenulib, 'redirect_method'))
+			$methodaliases = $this->treemenulib->redirect_method;
+		
+		$items = [];
+		foreach ($config as $uripart => $children) {
+			if (!is_array($children)) {
+				$uripart = $children;
+				$children = [];
+			}
+
+			$methodName = $uripart;
+			if (isset($methodaliases[$methodName])) {
+				$methodName = $methodaliases[$methodName];
+			} elseif (strpbrk($methodName, ' _-') !== false) {
+				$methodName = lcfirst(str_replace([' ', '_', '-'], '', ucwords($methodName, " \t\r\n\f\v_-")));
+			}
+
+			// Prepare arguments
+			if (is_callable($methodName, false, $name)) {
+				if (is_string($methodName) && is_callable([$this->treemenulib, $methodName]))
+					$callable = [$this->treemenulib, $methodName];
+				else
+					$callable = $methodName;
+			} else {
+				$callable = [$this->treemenulib, $methodName];
+			}
+
+			if (is_array($callable))
+				$reflection = new ReflectionMethod($callable[0], $callable[1]);
+			elseif (is_string($callable) && strstr($callable, '::'))
+				$reflection = new ReflectionMethod($callable);
+			elseif ($name != 'Closure::__invoke' && strstr($name, '::__invoke'))
+				$reflection = new ReflectionMethod($callable, '__invoke');
+			else
+				$reflection = new ReflectionFunction($callable);
+
+			$arguments = [];
+			foreach ($reflection->getParameters() as $arg) {
+				if ($arg->name == 'path_template') {
+					$path = $params;
+					$path[$uripart] = '%s';
+					$arguments[] = $this->uri->assoc_to_uri($path);
+				} elseif ($arg->name == 'has_children') {
+					$arguments[] = $children;
+				} elseif ($arg->name == 'original_method') {
+					$arguments[] = $uripart;
+				} elseif (isset($argumentaliases[$arg->name]) && isset($params[$argumentaliases[$arg->name]])) {
+					$arguments[] = $params[$argumentaliases[$arg->name]];
+				} elseif (isset($params[$arg->name])) {
+					$arguments[] = $params[$arg->name];
+				} else {
+					$arguments[] = null;
+				}
+			}
+
+			// Call function from lib
+			$items = array_merge($items, call_user_func_array($callable, $arguments));
+		}
+
+		$this->terminateWithSuccess($items);
+	}
+}
@@ -259,7 +259,7 @@ class BetriebsmittelP extends FHCAPI_Controller
 		$kaution = $this->input->post('kaution');
 		if($kaution) $kaution = str_replace(',', '.', $kaution);
 		$ausgegebenam = $this->input->post('ausgegebenam');
-		$retouram = $this->input->post('retouram');
+		$retouram = $this->input->post('retouram') == "" ? null : $this->input->post('retouram');

 		// NOTE(chris): transform_kartennummer
 		if ($betriebsmitteltyp == 'Zutrittskarte' && $nummer)
@@ -9,9 +9,10 @@ class Detailheader extends FHCAPI_Controller
 	public function __construct()
 	{
 		parent::__construct([
-			'getHeader' => ['vertrag/mitarbeiter:r'],
-			'getPersonAbteilung' => ['vertrag/mitarbeiter:r'],
-			'getLeitungOrg' => ['vertrag/mitarbeiter:r'],
+			'getHeader' => ['vertrag/mitarbeiter:r', 'basis/mitarbeiter:r', 'admin:r', 'assistenz:r'],
+			'getPersonAbteilung' => ['vertrag/mitarbeiter:r', 'basis/mitarbeiter:r', 'admin:r', 'assistenz:r'],
+			'getLeitungOrg' => ['vertrag/mitarbeiter:r', 'basis/mitarbeiter:r', 'admin:r', 'assistenz:r'],
+			'getSemesterStati' => ['admin:r', 'assistenz:r'],
 		]);
 	}

@@ -48,6 +49,17 @@ class Detailheader extends FHCAPI_Controller
 		$this->terminateWithSuccess(current($data));
 	}

+	public function getSemesterStati($prestudent_id)
+	{
+		$this->load->model('crm/Prestudentstatus_model', 'PrestudentstatusModel');
+
+		$result = $this->PrestudentstatusModel->getAllPrestudentstatiWithStudiensemester($prestudent_id);
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess($data);
+	}
+
 }


@@ -294,6 +294,10 @@ class Funktionen extends FHCAPI_Controller
 		{
 			$this->terminateWithValidationErrors($this->form_validation->error_array());
 		}
+		if($datum_von == '')
+			$datum_von = null;
+		if($datum_bis == '')
+			$datum_bis = null;

 		$result = $this->BenutzerfunktionModel->update(
 			[
@@ -0,0 +1,86 @@
+<?php
+
+if (!defined('BASEPATH'))
+	exit('No direct script access allowed');
+
+class Config extends FHCAPI_Controller
+{
+	private $_ci;
+	private $_uid;
+
+	public function __construct()
+	{
+		parent::__construct([
+			'get' => ['admin:r', 'assistenz:r'],
+			'set' => ['admin:r', 'assistenz:r'],
+		]);
+
+		$this->_ci = &get_instance();
+		$this->_setAuthUID();
+
+		$this->loadPhrases([
+			'lehre'
+		]);
+
+		$this->_ci->load->library('VariableLib', ['uid' => $this->_uid]);
+		$this->_ci->load->library('PermissionLib');
+
+	}
+
+
+	public function get()
+	{
+		if (!($this->permissionlib->isBerechtigt('basis/tempus')) && !($this->permissionlib->isBerechtigt('lv-plan')))
+			$this->terminateWithSuccess([]);
+
+		$ignore_kollision = $this->_ci->variablelib->getVar('ignore_kollision');
+		$ignore_zeitsperre = $this->_ci->variablelib->getVar('ignore_zeitsperre');
+		$ignore_reservierung = $this->_ci->variablelib->getVar('ignore_reservierung');
+
+		$config['ignore_kollision'] = [
+			"type" => "checkbox",
+			"label" => 'ignore_kollision',
+			"value" => $ignore_kollision,
+		];
+
+		$config['ignore_zeitsperre'] = [
+			"type" => "checkbox",
+			"label" => 'ignore_zeitsperre',
+			"value" => $ignore_zeitsperre,
+		];
+
+		$config['ignore_reservierung'] = [
+			"type" => "checkbox",
+			"label" => 'ignore_reservierung',
+			"value" => $ignore_reservierung,
+		];
+
+		$this->terminateWithSuccess($config);
+	}
+	public function set()
+	{
+		if (!($this->permissionlib->isBerechtigt('basis/tempus')) && !($this->permissionlib->isBerechtigt('lv-plan')))
+			$this->terminateWithSuccess([]);
+
+		$this->load->model('system/Variable_model', 'VariableModel');
+
+		foreach (['ignore_kollision','ignore_zeitsperre','ignore_reservierung'] as $variable)
+		{
+			if ($this->_ci->input->post($variable) !== null)
+			{
+				$this->VariableModel->update(array('uid' => $this->_uid, 'name' => $variable), array('wert' => $this->input->post($variable)));
+
+			}
+		}
+
+		$this->terminateWithSuccess();
+	}
+
+	private function _setAuthUID()
+	{
+		$this->_uid = getAuthUID();
+
+		if (!$this->_uid)
+			show_error('User authentification failed');
+	}
+}
@@ -1,47 +0,0 @@
-<?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);
-	}
-}
@@ -15,6 +15,7 @@ class Gruppe extends FHCAPI_Controller
 			'getBenutzerSearch' => ['admin:r', 'assistenz:r'],
 			'getAllSearch' => ['admin:r', 'assistenz:r'],
 			'getByLehreinheit' => ['admin:r', 'assistenz:r'],
+			'getGruppe' => ['admin:r', 'assistenz:r'],
 		]);

 		$this->_ci = &get_instance();
@@ -67,7 +68,7 @@ class Gruppe extends FHCAPI_Controller

 		$this->checkPermission($lehreinheit_id);

-		$result = $this->_ci->LehreinheitgruppeModel->addGroup($lehreinheit_id, $gid, !($lehrverband === 'false'));
+		$result = $this->_ci->LehreinheitgruppeModel->addGroup($lehreinheit_id, $gid, $lehrverband === true || $lehrverband === 'true');

 		if (isError($result))
 			$this->terminateWithError(getError($result));
@@ -75,6 +76,71 @@ class Gruppe extends FHCAPI_Controller
 		$this->terminateWithSuccess($result);
 	}

+	public function getGruppe()
+	{
+		$lehrverband = $this->input->post('lehrverband');
+
+		$gruppen_result = array();
+
+		if ($lehrverband === false)
+		{
+			$gruppen_result = $this->_ci->GruppeModel->loadWhere(array(
+				'studiengang_kz' => $this->input->post('stg_kz'),
+				'gruppe_kurzbz' => $this->input->post('gruppe_kurzbz'),
+				'aktiv' => true
+			));
+		}
+		else if ($lehrverband === true)
+		{
+
+			if (!isEmptyString($this->input->post('verband')))
+			{
+				$this->LehrverbandModel->db->where('verband', $this->input->post('verband'));
+			}
+			else
+			{
+				$this->LehrverbandModel->db->group_start();
+				$this->LehrverbandModel->db->where("trim(verband) = ''");
+				$this->LehrverbandModel->db->or_where("verband IS NULL");
+				$this->LehrverbandModel->db->group_end();
+			}
+
+			if (!isEmptyString($this->input->post('gruppe')))
+			{
+				$this->LehrverbandModel->db->where('gruppe', $this->input->post('gruppe'));
+			}
+			else
+			{
+				$this->LehrverbandModel->db->group_start();
+				$this->LehrverbandModel->db->where("trim(gruppe) = ''");
+				$this->LehrverbandModel->db->or_where("gruppe IS NULL");
+				$this->LehrverbandModel->db->group_end();
+			}
+
+			if (!isEmptyString((string)$this->input->post('semester')))
+			{
+				$this->LehrverbandModel->db->where('semester', $this->input->post('semester'));
+			}
+			else
+			{
+
+				$this->LehrverbandModel->db->group_start();
+				$this->LehrverbandModel->db->where("semester = ''");
+				$this->LehrverbandModel->db->or_where("semester IS NULL");
+				$this->LehrverbandModel->db->group_end();
+			}
+
+			$gruppen_result = $this->LehrverbandModel->loadWhere(array('studiengang_kz' => $this->input->post('stg_kz'), 'aktiv' => true));
+		}
+
+		if (!hasData($gruppen_result))
+			return $this->terminateWithError('No group found');
+
+		$gruppen_array = getData($gruppen_result)[0];
+
+		$this->terminateWithSuccess($gruppen_array->gid);
+	}
+
 	public function getByLehreinheit($lehreinheit_id = null)
 	{
 		if (is_null($lehreinheit_id) || !ctype_digit((string)$lehreinheit_id))
@@ -134,9 +134,14 @@ class Lektor extends FHCAPI_Controller
 			$this->terminateWithValidationErrors($this->form_validation->error_array());
 		}

-		if (isset($formData['semesterstunden']) && (!is_numeric($formData['semesterstunden']) || $formData['semesterstunden'] === ''))
+		$nullable_fields = array('semesterstunden', 'stundensatz', 'planstunden');
+
+		foreach ($nullable_fields as $nullable_field)
 		{
-			$formData['semesterstunden'] = null;
+			if (isset($formData[$nullable_field]) && (!is_numeric($formData[$nullable_field]) || $formData[$nullable_field] === ''))
+			{
+				$formData[$nullable_field] = null;
+			}
 		}

 		$lehreinheit_permission = $this->checkPermission($lehreinheit_id, array('admin', 'assistenz', 'lv-plan'));
@@ -144,6 +149,9 @@ class Lektor extends FHCAPI_Controller
 		if (!$lehreinheit_permission)
 			$this->terminateWithError($this->p->t('ui', 'error_fieldWriteAccess'));

+		if (!is_null($this->getLektorVertrag($lehreinheit_id, $mitarbeiter_uid)) && (array_key_exists('mitarbeiter_uid', $formData) && $mitarbeiter_uid !== $formData['mitarbeiter_uid']))
+			$this->terminateWithError($this->p->t('ui', 'error_fieldWriteAccess'));
+
 		$result = $this->_ci->lektorlib->updateLektorFromLehreinheit($lehreinheit_id, $mitarbeiter_uid, $formData);

 		if (isError($result)) $this->terminateWithError(getError($result));
@@ -154,7 +162,7 @@ class Lektor extends FHCAPI_Controller
 	{
 		$value = str_replace(',', '.', $value);

-		if (!is_numeric($value))
+		if (!is_numeric($value) && $value !== "")
 		{
 			$this->form_validation->set_message('_check_decimal', 'Das Feld {field} muss eine Zahl sein.');
 			return false;
@@ -0,0 +1,84 @@
+<?php
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+class Noten extends FHCAPI_Controller
+{
+	public function __construct()
+	{
+		parent::__construct([
+			'getCertificate' => 'student/noten:r',
+			'getTeacherProposal' => 'student/noten:r',
+		]);
+
+		// Load Libraries
+		$this->load->library('VariableLib', ['uid' => getAuthUID()]);
+
+		// Load Phrases
+		$this->loadPhrases([
+			'stv',
+			'person',
+			'lehre'
+		]);
+	}
+
+	public function getCertificate($lv_id, $studiensemester_kurzbz = null)
+	{
+		if (is_null($lv_id) || !ctype_digit((string)$lv_id))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$this->load->model('education/lehrveranstaltung_model', 'LehrveranstaltungModel');
+		$this->load->model('education/Zeugnisnote_model', 'ZeugnisnoteModel');
+		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+
+		$result = $this->LehrveranstaltungModel->loadWhere([
+			'lehrveranstaltung_id' => $lv_id
+		]);
+
+		$lehrveranstaltung = $this->getDataOrTerminateWithError($result);
+
+		if (!$lehrveranstaltung)
+			$this->terminateWithSuccess([]);
+
+		if ($studiensemester_kurzbz !== null && !$this->StudiensemesterModel->isValidStudiensemester($studiensemester_kurzbz))
+		{
+			$this->terminateWithError($studiensemester_kurzbz . ' - ' . $this->p->t('lehre', 'error_noStudiensemester'));
+		}
+
+		$result = $this->ZeugnisnoteModel->getZeugnisnoten(null, $studiensemester_kurzbz, $lehrveranstaltung[0]->lehrveranstaltung_id);
+
+		$grades = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess($grades);
+	}
+
+	public function getTeacherProposal($lv_id, $studiensemester_kurzbz = null)
+	{
+		if (is_null($lv_id) || !ctype_digit((string)$lv_id))
+			$this->terminateWithError( $this->p->t('ui', 'ungueltigeParameter'), self::ERROR_TYPE_GENERAL);
+
+		$this->load->model('education/lehrveranstaltung_model', 'LehrveranstaltungModel');
+		$this->load->model('education/Lvgesamtnote_model', 'LvgesamtnoteModel');
+		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+
+		$result = $this->LehrveranstaltungModel->loadWhere([
+			'lehrveranstaltung_id' => $lv_id
+		]);
+
+		$lehrveranstaltung = $this->getDataOrTerminateWithError($result);
+
+		if (!$lehrveranstaltung)
+			$this->terminateWithSuccess([]);
+
+		if ($studiensemester_kurzbz !== null && !$this->StudiensemesterModel->isValidStudiensemester($studiensemester_kurzbz))
+		{
+			$this->terminateWithError($studiensemester_kurzbz . ' - ' . $this->p->t('lehre', 'error_noStudiensemester'));
+		}
+
+		$result = $this->LvgesamtnoteModel->getLvGesamtNoten($lv_id, null, $studiensemester_kurzbz);
+
+		$grades = $this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess($grades);
+	}
+
+}
@@ -19,6 +19,8 @@
 if (!defined('BASEPATH'))
 	exit('No direct script access allowed');

+use CI3_Events as Events;
+
 class Setup extends FHCAPI_Controller
 {
 	private $_ci;
@@ -27,7 +29,8 @@ class Setup extends FHCAPI_Controller
 	public function __construct()
 	{
 		parent::__construct([
-			'getTabs' => ['admin:r', 'assistenz:r'],
+			'getLETabs' => ['admin:r', 'assistenz:r'],
+			'getLVTabs' => ['admin:r', 'assistenz:r'],
 			'getStudiensemester' => ['admin:r', 'assistenz:r'],
 			'getSprache' => ['admin:r', 'assistenz:r'],
 			'getRaumtyp' => ['admin:r', 'assistenz:r'],
@@ -41,9 +44,10 @@ class Setup extends FHCAPI_Controller
 		$this->_ci->load->model('education/Lehrveranstaltung_model', 'LehrveranstaltungModel');

 		$this->_ci->load->library('VariableLib', ['uid' => $this->_uid]);
+		$this->_ci->load->helper('hlp_document');
 	}

-	public function getTabs()
+	public function getLETabs()
 	{
 		$tabs['details'] = array (
 			'title' =>  'Details',
@@ -60,11 +64,43 @@ class Setup extends FHCAPI_Controller
 			'component' => absoluteJsImportUrl('public/js/components/LVVerwaltung/Tabs/Lektor.js'),
 			'config' => []
 		);
+		$tabs['termine'] = array (
+			'title' =>  'Termine',
+			'component' => absoluteJsImportUrl('public/js/components/LVVerwaltung/Tabs/Termine.js'),
+			'config' => []
+		);
 		$tabs['notiz'] = array (
 			'title' =>  'Notizen',
 			'component' => absoluteJsImportUrl('public/js/components/LVVerwaltung/Tabs/Notiz.js'),
 			'config' => []
 		);
+
+		Events::trigger('lvv_conf_tabs', function & () use (&$tabs) {
+			return $tabs;
+		});
+
+		$this->terminateWithSuccess($tabs);
+	}
+
+	public function getLVTabs()
+	{
+		$tabs['termine'] = array (
+			'title' =>  'Termine',
+			'component' => absoluteJsImportUrl('public/js/components/LVVerwaltung/Tabs/LVTermine.js'),
+			'config' => []
+		);
+		$tabs['noten'] = array (
+			'title' =>  'Noten',
+			'component' => absoluteJsImportUrl('public/js/components/LVVerwaltung/Tabs/Noten.js'),
+			'config' => [
+				'usePoints' => defined('CIS_GESAMTNOTE_PUNKTE') && CIS_GESAMTNOTE_PUNKTE,
+				'edit' => 'both', // Possible values: both|header|inline
+				'delete' => 'inline', // Possible values: both|header|inline
+				'documents' => 'inline', // Possible values: both|header|inline
+				'documentslist' => gradesDocumentsList(),
+				'semesterSelect' => false
+			]
+		);
 		$this->terminateWithSuccess($tabs);
 	}

@@ -1,117 +0,0 @@
-<?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);
-	}
-}
@@ -26,7 +26,9 @@ class Studiensemester extends FHCAPI_Controller
 				'getAll' => self::PERM_LOGGED,
 				'getAktNext' => self::PERM_LOGGED,
 				'getStudienjahrByStudiensemester' => self::PERM_LOGGED,
-				'getAllStudiensemesterAndAktOrNext' => self::PERM_LOGGED
+				'getAllStudiensemesterAndAktOrNext' => self::PERM_LOGGED,
+				'current' => self::PERM_LOGGED,
+				'set' => self::PERM_LOGGED
 			)
 		);
 		// Load model StudiensemesterModel
@@ -166,4 +168,39 @@ class Studiensemester extends FHCAPI_Controller
 		
 		$this->terminateWithSuccess(array($studiensemester, $aktuell));
 	}
+
+	public function current()
+	{
+		$result = $this->StudiensemesterModel->getNearest();
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		if (!$data)
+			$this->terminateWithError('Kein Studiensemester aktiv');
+		if (count($data) > 1)
+			$this->terminateWithError('Mehrere Studiensemester aktiv');
+
+		$this->terminateWithSuccess(current($data)->studiensemester_kurzbz);
+	}
+
+	public function set()
+	{
+		$this->load->library('AuthLib');
+		$this->load->library('form_validation');
+
+		$this->form_validation->set_rules('studiensemester_kurzbz', 'Studiensemester', 'required');
+
+		if (!$this->form_validation->run())
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+
+		$stdsem = $this->input->post('studiensemester_kurzbz');
+
+		$this->load->model('system/Variable_model', 'VariableModel');
+
+		$result = $this->VariableModel->setVariable(getAuthUID(), 'semester_aktuell', $stdsem);
+
+		$this->getDataOrTerminateWithError($result);
+
+		$this->terminateWithSuccess(true);
+	}
 }
@@ -246,12 +246,12 @@ class Abschlusspruefung extends FHCAPI_Controller
 	{
 		$searchString = $this->input->get('searchString') ?? '';

-		$this->load->model('ressource/Mitarbeiter_model', 'MitarbeiterModel');
+		$this->load->model('person/Person_model', 'PersonModel');

-		$result = $this->MitarbeiterModel->searchMitarbeiter($searchString, 'ohneMaUid');
+		$result = $this->PersonModel->searchPerson($searchString, 'mitMaUid');

 		if (isError($result)) {
-			$this->terminateWithError($result, self::ERROR_TYPE_GENERAL);
+			  $this->terminateWithError($result, self::ERROR_TYPE_GENERAL);
 		}

 		$this->terminateWithSuccess($result ?: []);
@@ -371,6 +371,9 @@ class Abschlusspruefung extends FHCAPI_Controller
 			$this->terminateWithValidationErrors($this->form_validation->error_array());
 		}

+		$datum = $formData['datum'] == '' ? null : $formData['datum'];
+		$sponsion = $formData['sponsion'] == '' ? null : $formData['sponsion'];
+
 		$result = $this->AbschlusspruefungModel->update(
 			[
 				'abschlusspruefung_id' => $abschlusspruefung_id
@@ -382,8 +385,8 @@ class Abschlusspruefung extends FHCAPI_Controller
 				'vorsitz' => $vorsitz,
 				'pruefungsantritt_kurzbz' => $formData['pruefungsantritt_kurzbz'],
 				'abschlussbeurteilung_kurzbz' => $formData['abschlussbeurteilung_kurzbz'],
-				'datum' => $formData['datum'],
-				'sponsion' => $formData['sponsion'],
+				'datum' => $datum,
+				'sponsion' => $sponsion,
 				'pruefer1' => $pruefer1,
 				'pruefer2' => $pruefer2,
 				'pruefer3' => $pruefer3,
@@ -301,6 +301,7 @@ class Config extends FHCAPI_Controller

 	public function student()
 	{
+		$this->load->helper('hlp_document');
 		$result = [];
 		$config = $this->config->item('tabs');

@@ -376,9 +377,9 @@ class Config extends FHCAPI_Controller
 			'config' => [
 				'usePoints' => defined('CIS_GESAMTNOTE_PUNKTE') && CIS_GESAMTNOTE_PUNKTE,
 				'edit' => 'both', // Possible values: both|header|inline
-				'delete' => 'both', // Possible values: both|header|inline
-				'documents' => 'both', // Possible values: both|header|inline
-				'documentslist' => $this->gradesDocumentsList()
+				'delete' => 'inline', // Possible values: both|header|inline
+				'documents' => 'inline', // Possible values: both|header|inline
+				'documentslist' => gradesDocumentsList()
 			]
 		];

@@ -622,188 +623,6 @@ class Config extends FHCAPI_Controller
 		] + $this->kontoColumns();
 	}

-	/**
-	 * Helper function to generate the default documentslist config for the
-	 * grades tab.
-	 *
-	 * The resulting array consists of elements which are associative arrays
-	 * that can have the following entries:
-	 * title			(required) on the first level this can be HTML code.
-	 * permissioncheck	(optional) an URL to an FHCAPI endpoint which returns
-	 * 						true or false.
-	 * link				(optional) an URL that will be called if "action" and
-	 * 						"children" are not defined.
-	 * action			(optional) an associative array that describes an
-	 * 						POST action that will be called if "children" is
-	 * 						not defined.
-	 * 						It can have the following entries:
-	 * - url			(required) an URL to an FHCAPI endpoint.
-	 * - post			(optional) an associative array with the POST data to
-	 * 						be sent.
-	 * - response		(optional) a string that will be displayed on success.
-	 * children			(optional) an array of child elements
-	 *
-	 * All strings that start with { and end with } in the URLs and the
-	 * actions post parameter will be replaced with the corresponding
-	 * attribute of the current dataset (e.G: {uid} will be replaced with the
-	 * uid of the current dataset)
-	 *
-	 * @return array
-	 */
-	protected function gradesDocumentsList()
-	{
-		$permissioncheck = site_url("api/frontend/v1/documents/permissionAlternativeFormat/{studiengang_kz}");
-
-		$title_ger = $this->p->t("global", "deutsch");
-		$title_eng = $this->p->t("global", "englisch");
-		$title_ff = $this->p->t("stv", "document_certificate");
-		$title_lv = $this->p->t("stv", "document_coursecertificate");
-
-		$link_ff = "documents/export/" .
-			"zertifikat.rdf.php/" .
-			"Zertifikat" .
-			"?stg_kz={studiengang_kz_lv}" .
-			"&uid={uid}" .
-			"&ss={studiensemester_kurzbz}" .
-			"&lvid={lehrveranstaltung_id}";
-		$link_lv_ger = "documents/export/" .
-			"lehrveranstaltungszeugnis.rdf.php/" .
-			"LVZeugnis" .
-			"?stg_kz={studiengang_kz}" .
-			"&uid={uid}" .
-			"&ss={studiensemester_kurzbz}" .
-			"&lvid={lehrveranstaltung_id}";
-		$link_lv_eng = "documents/export/" .
-			"lehrveranstaltungszeugnis.rdf.php/" .
-			"LVZeugnisEng" .
-			"?stg_kz={studiengang_kz}" .
-			"&uid={uid}" .
-			"&ss={studiensemester_kurzbz}" .
-			"&lvid={lehrveranstaltung_id}";
-
-		$archive_url = "api/frontend/v1/documents/archiveSigned";
-		$archive_response = $this->p->t("stv", "document_signed_and_archived");
-		$archive_post_ff = [
-			"xml" => "zertifikat.rdf.php",
-			"xsl" => "Zertifikat",
-			"stg_kz" => "{studiengang_kz_lv}",
-			"uid" => "{uid}",
-			"ss" => "{studiensemester_kurzbz}",
-			"lvid" => "{lehrveranstaltung_id}"
-		];
-		$archive_post_lv_ger = [
-			"xml" => "lehrveranstaltungszeugnis.rdf.php",
-			"xsl" => "LVZeugnis",
-			"stg_kz" => "{studiengang_kz}",
-			"uid" => "{uid}",
-			"ss" => "{studiensemester_kurzbz}",
-			"lvid" => "{lehrveranstaltung_id}"
-		];
-		$archive_post_lv_eng = [
-			"xml" => "lehrveranstaltungszeugnis.rdf.php",
-			"xsl" => "LVZeugnisEng",
-			"stg_kz" => "{studiengang_kz}",
-			"uid" => "{uid}",
-			"ss" => "{studiensemester_kurzbz}",
-			"lvid" => "{lehrveranstaltung_id}"
-		];
-
-		$list = [
-			[
-				'title' => '<i class="fa fa-download" title="' . $this->p->t("stv", "document_download") . '"></i>',
-				'children' => [
-					[
-						'title' => $title_ff,
-						'link' => site_url($link_ff)
-					],
-					[
-						'title' => $title_lv,
-						'children' => [
-							[
-								'title' => $title_ger,
-								'link' => site_url($link_lv_ger),
-								'children' => [
-									[
-										'title' => 'PDF',
-										'permissioncheck' => $permissioncheck,
-										'link' => site_url($link_lv_ger)
-									],
-									[
-										'title' => 'DOC',
-										'permissioncheck' => $permissioncheck,
-										'link' => site_url($link_lv_ger . "&output=doc")
-									],
-									[
-										'title' => 'ODT',
-										'permissioncheck' => $permissioncheck,
-										'link' => site_url($link_lv_ger . "&output=odt")
-									]
-								]
-							],
-							[
-								'title' => $title_eng,
-								'link' => site_url($link_lv_eng),
-								'children' => [
-									[
-										'title' => 'PDF',
-										'permissioncheck' => $permissioncheck,
-										'link' => site_url($link_lv_eng)
-									],
-									[
-										'title' => 'DOC',
-										'permissioncheck' => $permissioncheck,
-										'link' => site_url($link_lv_eng . "&output=doc")
-									],
-									[
-										'title' => 'ODT',
-										'permissioncheck' => $permissioncheck,
-										'link' => site_url($link_lv_eng . "&output=odt")
-									]
-								]
-							]
-						]
-					]
-				]
-			],
-			[
-				'title' => '<i class="fas fa-archive" title="' . $this->p->t("stv", "document_archive") . '"></i>',
-				'children' => [
-					[
-						'title' => $title_ff,
-						'action' => [
-							'url' => site_url($archive_url),
-							'post' => $archive_post_ff,
-							'response' => $archive_response
-						]
-					],
-					[
-						'title' => $title_lv,
-						'children' => [
-							[
-								'title' => $title_ger,
-								'action' => [
-									'url' => site_url($archive_url),
-									'post' => $archive_post_lv_ger,
-									'response' => $archive_response
-								]
-							],
-							[
-								'title' => $title_eng,
-								'action' => [
-									'url' => site_url($archive_url),
-									'post' => $archive_post_lv_eng,
-									'response' => $archive_response
-								]
-							]
-						]
-					]
-				]
-			]
-		];
-
-		return $list;
-	}
-
 	/**
 	 * Sort tab list
 	 *
@@ -170,6 +170,8 @@ class Dokumente extends FHCAPI_Controller
 			$this->terminateWithValidationErrors($this->form_validation->error_array());
 		}

+		$nachgereicht_am =  $this->input->post('nachgereicht_am') == '' ? null : $this->input->post('nachgereicht_am');
+
 		$uid = getAuthUID();

 		$result = $this->AkteModel->update(
@@ -180,7 +182,7 @@ class Dokumente extends FHCAPI_Controller
 				'dokument_kurzbz' => $this->input->post('dokument_kurzbz'),
 				'anmerkung_intern' => $this->input->post('anmerkung_intern'),
 				'titel_intern' => $this->input->post('titel_intern'),
-				'nachgereicht_am' => $this->input->post('nachgereicht_am'),
+				'nachgereicht_am' => $nachgereicht_am,
 				'updateamum' => date('c'),
 				'updatevon' => $uid,
 			]
@@ -429,9 +429,12 @@ class Konto extends FHCAPI_Controller
 			'updateamum' => date('c'),
 			'updatevon' => getAuthUID()
 		];
+
 		foreach ($allowed as $field)
 			if ($this->input->post($field) !== null)
 				$data[$field] = $this->input->post($field);
+			if($data['buchungsdatum'] == '')
+				$data['buchungsdatum'] = null;

 		$result = $this->KontoModel->update($id, $data);

@@ -34,7 +34,7 @@ class LvTermine extends FHCAPI_Controller

 	//TODO Build own lib or combine with Controller Stundenplan.php
 	//here use of logic of Stundenplan.php, extended with parameters uid, grouping, and used dbTable
-	public function getStundenplan($uid, $start_date = null, $end_date = null, $groupConsecutiveHours = false, $dbStundenplanTable = "stundenplan")
+	public function getStundenplan($uid, $start_date = null, $end_date = null, $dbStundenplanTable = "stundenplan", $groupConsecutiveHours = false)
 	{
 		$student_uid = $uid;
 		$semester_range = $this->studienSemesterErmitteln($start_date, $end_date);
@@ -80,13 +80,6 @@ class LvTermine extends FHCAPI_Controller

 		$stundenplan_data = $this->getDataOrTerminateWithError($stundenplan_data) ?? [];
 		$this->terminateWithSuccess($stundenplan_data);
-
-		$this->expand_object_information($stundenplan_data);
-
-		$this->returnObj['$stundenplan_query'] = $stundenplan_query;
-		$this->returnObj['$student_lehrverband'] = $student_lehrverband;
-		$this->returnObj['$benutzer_gruppen'] = $benutzer_gruppen;
-		$this->terminateWithSuccess($stundenplan_data);
 	}

 	public function getStudiensemester()
@@ -237,8 +237,8 @@ class Mobility extends FHCAPI_Controller
 		}
 		$formData = $this->input->post('formData');

-		$von = $formData['von'] ?? null;
-		$bis = $formData['bis'] ?? null;
+		$von = ($formData['von'] ?? '') ?: null;
+		$bis = ($formData['bis'] ?? '') ?: null;
 		$nation_code = $formData['nation_code'] ?? null;
 		$mobilitaetsprogramm_code = $formData['mobilitaetsprogramm_code'] ?? null;
 		$herkunftsland_code = $formData['herkunftsland_code'] ?? null;
@@ -193,7 +193,7 @@ class Prestudent extends FHCAPI_Controller
 				}
 				elseif (
 					$val === ''
-					&& in_array($prop, ['zgvnation', 'zgvmanation', 'zgvdoktornation', 'berufstaetigkeit_code', 'ausbildungcode'])
+					&& in_array($prop, ['zgvnation', 'zgvmanation', 'zgvdoktornation', 'berufstaetigkeit_code', 'ausbildungcode', 'zgvdatum', 'zgvmadatum'])
 				)
 				{
 					$val = null;
@@ -42,6 +42,8 @@ class Projektarbeit extends FHCAPI_Controller
 		$this->load->model('education/Note_model', 'NoteModel');
 		$this->load->model('education/Projektbetreuer_model', 'BetreuerModel');
 		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+		$this->load->model('crm/Student_model', 'StudentModel');
+		$this->load->model('crm/Prestudentstatus_model', 'PrestudentstatusModel');

 		// load libraries
 		$this->load->library('PermissionLib');
@@ -100,16 +102,16 @@ class Projektarbeit extends FHCAPI_Controller
 	private function fetchProjektarbeitById($projektarbeit_id) {
 		$this->ProjektarbeitModel->resetQuery();
 		$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'
+			'lehre.tbl_projektarbeit.projektarbeit_id, titel, titel_english, themenbereich, projekttyp_kurzbz, lehrveranstaltung_id, lehreinheit_id,
+			tbl_projektarbeit.studiensemester_kurzbz, 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');
+		
+		
 		return $this->ProjektarbeitModel->loadWhere(
 			array('projektarbeit_id' => $projektarbeit_id)
 		);
-
 	}

 	/**
@@ -246,14 +248,38 @@ class Projektarbeit extends FHCAPI_Controller
 		$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)) $this->terminateWithError('Studiensemster missing', self::ERROR_TYPE_GENERAL);
+		if (!isset($studiensemester_kurzbz)) $this->terminateWithError('Studiensemester missing', self::ERROR_TYPE_GENERAL);

-		// get Lvs
+		// get prestudent_id from student model
+		$studentRes = $this->StudentModel->load(['student_uid' => $student_uid]);
+		if(hasData($studentRes)) {
+			$student = getData($studentRes);
+		} else {
+			$this->terminateWithError($studentRes, self::ERROR_TYPE_GENERAL);
+		}
+		
+		// to get prestudent_status history
+		$historyRes = $this->PrestudentstatusModel->getHistoryPrestudent($student[0]->prestudent_id);
+		if(hasData($historyRes)) {
+			$history = getData($historyRes);
+		} else {
+			$this->terminateWithError($historyRes, self::ERROR_TYPE_GENERAL);
+		}
+		
+		// query for every lva of a studiengang that has projektarbeit flag true
 		$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) : [];
+		
+		$lvsIDs = array_column($lvs, 'lehrveranstaltung_id');
+		
+		// get current studienplan_id from status history to find out which lva options are actually assigned to the students studienplan 
+		// important so the projektarbeit has the correct lva assigned to be able to find and print the thesis title on the degree documents!
+		$currentStatus = $history[0];
+		$lvByStudienPlanRes = $this->LehrveranstaltungModel->getLvsByStudienplanByLvaIDs($currentStatus->studienplan_id, $lvsIDs);
+		if(hasData($lvByStudienPlanRes)) {
+			$lvs = getData($lvByStudienPlanRes);
+		}

 		foreach ($lvs as $lv)
 		{
@@ -320,11 +346,18 @@ class Projektarbeit extends FHCAPI_Controller
 			'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']),
+		$this->form_validation->set_rules('lehreinheit_id', 'Lehreinheit', 'is_natural', [
 			'is_natural' =>  $this->p->t('ui', 'error_fieldNotNumeric', ['field' => 'Lehreinheit'])
 		]);

+		$this->form_validation->set_rules('lehrveranstaltung_id', 'Lehrveranstaltung', 'required', [
+			'required' => $this->p->t('ui', 'error_fieldRequired', ['field' => 'Lehrveranstaltung'])
+		]);
+
+		$this->form_validation->set_rules('studiensemester_kurzbz', 'Studiensemester', 'required', [
+			'required' => $this->p->t('ui', 'error_fieldRequired', ['field' => 'Studiensemester'])
+		]);
+
 		$this->form_validation->set_rules('beginn', 'Beginn', 'is_valid_date', [
 			'is_valid_date' => $this->p->t('ui', 'error_notValidDate', ['field' => 'Beginn'])
 		]);
@@ -354,6 +387,8 @@ class Projektarbeit extends FHCAPI_Controller
 			'projekttyp_kurzbz' => $formData['projekttyp_kurzbz'],
 			'firma_id' => $formData['firma_id'] ?? null,
 			'lehreinheit_id' => $formData['lehreinheit_id'],
+			'lehrveranstaltung_id' => $formData['lehrveranstaltung_id'],
+			'studiensemester_kurzbz' => $formData['studiensemester_kurzbz'],
 			'beginn' => isset($formData['beginn']) && !isEmptyString($formData['beginn']) ? $formData['beginn'] : null,
 			'ende' => isset($formData['ende']) && !isEmptyString($formData['ende']) ? $formData['ende'] : null,
 			'note' => $formData['note'] ?? null,
@@ -448,8 +448,10 @@ class Pruefung extends FHCAPI_Controller
 			}
 		}

+		$datum = $this->input->post('datum') == '' ? null : $this->input->post('datum');
 		if(intval($pruefung_id) > 0)
 		{
+
 			$result = $this->PruefungModel->update(
 				[
 					'pruefung_id' => $pruefung_id
@@ -459,7 +461,7 @@ class Pruefung extends FHCAPI_Controller
 					'mitarbeiter_uid' =>  $this->input->post('mitarbeiter_uid'),
 					'note' => $this->input->post('note'),
 					'pruefungstyp_kurzbz' => $this->input->post('pruefungstyp_kurzbz'),
-					'datum' => $this->input->post('datum'),
+					'datum' => $datum,
 					'anmerkung' => $this->input->post('anmerkung'),
 					'updatevon' => $authUID,
 					'updateamum' => date('c'),
@@ -472,7 +474,7 @@ class Pruefung extends FHCAPI_Controller
 				'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'),
+				'datum' => $datum,
 				'pruefungstyp_kurzbz' => $this->input->post('pruefungstyp_kurzbz'),
 				'note' => $this->input->post('note'),
 				'anmerkung' => $this->input->post('anmerkung'),
@@ -520,7 +522,7 @@ class Pruefung extends FHCAPI_Controller
 				'studiensemester_kurzbz' => $studiensemester_kurzbz,
 				'note' => $this->input->post('note'),
 				'uebernahmedatum' => date('c'),
-				'benotungsdatum' => $this->input->post('datum'),
+				'benotungsdatum' => $datum,
 				'insertamum' => date('c'),
 				'insertvon' =>  $authUID,
 				'punkte' => $this->input->post('punkte') ? str_replace(',', '.', $this->input->post('punkte')) : null
@@ -555,7 +557,7 @@ class Pruefung extends FHCAPI_Controller
 		], [
 			'note' => $this->input->post('note'),
 			'uebernahmedatum' => date('c'),
-			'benotungsdatum' => $this->input->post('datum'),
+			'benotungsdatum' => $datum,
 			'updateamum' => date('c'),
 			'updatevon' =>  $authUID,
 			'punkte' => $this->input->post('punkte') ? str_replace(',', '.', $this->input->post('punkte')) : null
@@ -144,6 +144,7 @@ class Student extends FHCAPI_Controller
 				. $this->PrestudentModel->escape($studiensemester_kurzbz)
 				. ")  AS statusofsemester"
 		);
+		$this->PrestudentModel->addSelect($this->PrestudentModel->escape($studiensemester_kurzbz) . ' as query_studiensemester_kurzbz');

 		$this->PrestudentModel->addJoin('public.tbl_student s', 'prestudent_id', 'LEFT');
 		$this->PrestudentModel->addJoin('public.tbl_benutzer b', 'student_uid = uid', 'LEFT');
@@ -296,6 +297,10 @@ class Student extends FHCAPI_Controller
 				$fotoval = ($val == '') ? null : str_replace('data:image/jpeg;base64,', '', $val);
 				$update_person[$prop] = $fotoval;
 			}
+			else if ($prop == 'gebdatum')
+			{
+				$update_person[$prop] = ($val == '') ? null : $val;
+			}
 			else
 			{
 				$update_person[$prop] = $val;
@@ -108,6 +108,7 @@ class Students extends FHCAPI_Controller
 			'studiensemester_kurzbz' => $studiensemester_kurzbz
 		]);
 		
+		$studiensemester_kurzbz = $this->getStudiensemesterKurzbz($studiensemester_kurzbz);

 		$this->studentlistlib->addJoin(
 			"(
@@ -138,7 +139,7 @@ class Students extends FHCAPI_Controller
 		$result = $this->studentlistlib->execute($studiensemester_kurzbz);

 		$data = $this->getDataOrTerminateWithError($result);
-
+		$this->decodeTagsJsonInResult($data);
 		$this->terminateWithSuccess($data);
 	}

@@ -153,7 +154,8 @@ class Students extends FHCAPI_Controller
 		$this->addMeta('ci_params', [
 			'studiensemester_kurzbz' => $studiensemester_kurzbz
 		]);
-		
+
+		$studiensemester_kurzbz = $this->getStudiensemesterKurzbz($studiensemester_kurzbz);		

 		$this->studentlistlib->addJoin(
 			"(
@@ -190,14 +192,14 @@ class Students extends FHCAPI_Controller
 		) AS semester", false);
 		$this->studentlistlib->addSelect("COALESCE(v.verband::text, ''::text) AS verband");
 		$this->studentlistlib->addSelect("COALESCE(v.gruppe::text, ''::text) AS gruppe");
-		
+

 		$this->addFilter($studiensemester_kurzbz);

 		$result = $this->studentlistlib->execute($studiensemester_kurzbz);

 		$data = $this->getDataOrTerminateWithError($result);
-
+		$this->decodeTagsJsonInResult($data);
 		$this->terminateWithSuccess($data);
 	}

@@ -213,6 +215,7 @@ class Students extends FHCAPI_Controller
 			'studiensemester_kurzbz' => $studiensemester_kurzbz
 		]);
 		
+		$studiensemester_kurzbz = $this->getStudiensemesterKurzbz($studiensemester_kurzbz);

 		$this->studentlistlib->addJoin(
 			"(
@@ -235,59 +238,66 @@ class Students extends FHCAPI_Controller
 		) AS semester", false);
 		$this->studentlistlib->addSelect("COALESCE(v.verband::text, ''::text) AS verband");
 		$this->studentlistlib->addSelect("COALESCE(v.gruppe::text, ''::text) AS gruppe");
-		
+

 		$this->addFilter($studiensemester_kurzbz);

 		$result = $this->studentlistlib->execute($studiensemester_kurzbz);

 		$data = $this->getDataOrTerminateWithError($result);
-
+		$this->decodeTagsJsonInResult($data);
 		$this->terminateWithSuccess($data);
 	}

 	public function getPrestudents(
-		$studiengang_kz,
+		$studiengang_typ_kurzbz,
 		$studiensemester_kurzbz = null,
 		$filter = null
 	) {
 		$this->addMeta('ci_method', __FUNCTION__);
 		$this->addMeta('ci_params', array(
-			'studiengang_kz' => $studiengang_kz,
+			'studiengang_typ_kurzbz' => $studiengang_typ_kurzbz,
 			'studiensemester_kurzbz' => $studiensemester_kurzbz,
 			'filter' => $filter
 		));
 		
-		$this->fetchPrestudents($studiengang_kz, $studiensemester_kurzbz, $filter);
+		$this->fetchPrestudents($studiengang_typ_kurzbz, $studiensemester_kurzbz, $filter);
 	}

 	public function getPrestudentsOrgform(
-		$studiengang_kz,
+		$studiengang_typ_kurzbz,
 		$orgform_kurzbz,
 		$studiensemester_kurzbz = null,
 		$filter = null
 	) {
 		$this->addMeta('ci_method', __FUNCTION__);
 		$this->addMeta('ci_params', array(
-			'studiengang_kz' => $studiengang_kz,
+			'studiengang_typ_kurzbz' => $studiengang_typ_kurzbz,
 			'studiensemester_kurzbz' => $studiensemester_kurzbz,
 			'filter' => $filter,
 			'orgform_kurzbz' => $orgform_kurzbz
 		));
 		
-		$this->fetchPrestudents($studiengang_kz, $studiensemester_kurzbz, $filter, $orgform_kurzbz);
+		$this->fetchPrestudents($studiengang_typ_kurzbz, $studiensemester_kurzbz, $filter, $orgform_kurzbz);
 	}

 	/**
-	 * @param integer		$studiengang_kz
+	 * @param string		$studiengang_typ_kurzbz
 	 * @param string		$studiensemester_kurzbz			(optional)
 	 * @param string		$filter							(optional)
 	 * @param string		$orgform_kurzbz					(optional)
 	 *
 	 * @return void
 	 */
-	protected function fetchPrestudents($studiengang_kz, $studiensemester_kurzbz = null, $filter = null, $orgform_kurzbz = null)
+	protected function fetchPrestudents($studiengang_typ_kurzbz, $studiensemester_kurzbz = null, $filter = null, $orgform_kurzbz = null)
 	{
+		$studiengang_kz = $this->getStudiengangKz($studiengang_typ_kurzbz);
+		$studiensemester_kurzbz = $this->getStudiensemesterKurzbz($studiensemester_kurzbz);
+		$orgform_kurzbz = $this->getOrgformKurzbz($orgform_kurzbz);
+
+		if ($studiengang_kz === null)
+			show_404();
+
 		$stdsemEsc = $studiensemester_kurzbz ? $this->PrestudentModel->escape($studiensemester_kurzbz) : 'NULL';

 		$selectRT = "
@@ -439,19 +449,21 @@ class Students extends FHCAPI_Controller
 		$this->studentlistlib->addSelect("'' AS verband");
 		$this->studentlistlib->addSelect("'' AS gruppe");

+		$query_studiensemester_kurzbz = $studiensemester_kurzbz ? $this->PrestudentModel->escape($studiensemester_kurzbz) : '\'NULL\'';
+		$this->studentlistlib->addSelect($query_studiensemester_kurzbz . ' as query_studiensemester_kurzbz');

 		$this->addFilter($studiensemester_kurzbz);

 		$result = $this->studentlistlib->execute($studiensemester_kurzbz);

 		$data = $this->getDataOrTerminateWithError($result);
-
+		$this->decodeTagsJsonInResult($data);
 		$this->terminateWithSuccess($data);
 	}

 	public function getStudents(
 		$studiensemester_kurzbz,
-		$studiengang_kz,
+		$studiengang_typ_kurzbz,
 		$semester = null,
 		$verband = null,
 		$gruppe = null
@@ -459,18 +471,18 @@ class Students extends FHCAPI_Controller
 		$this->addMeta('ci_method', __FUNCTION__);
 		$this->addMeta('ci_params', array(
 			'studiensemester_kurzbz' => $studiensemester_kurzbz,
-			'studiengang_kz' => $studiengang_kz,
+			'studiengang_typ_kurzbz' => $studiengang_typ_kurzbz,
 			'semester' => $semester,
 			'verband' => $verband,
 			'gruppe' => $gruppe
 		));
 		
-		$this->fetchStudents($studiensemester_kurzbz, $studiengang_kz, $semester, $verband, $gruppe, null, null);
+		$this->fetchStudents($studiensemester_kurzbz, $studiengang_typ_kurzbz, $semester, $verband, $gruppe, null, null);
 	}

 	public function getStudentsOrgform(
 		$studiensemester_kurzbz,
-		$studiengang_kz,
+		$studiengang_typ_kurzbz,
 		$orgform_kurzbz,
 		$semester = null,
 		$verband = null,
@@ -479,37 +491,37 @@ class Students extends FHCAPI_Controller
 		$this->addMeta('ci_method', __FUNCTION__);
 		$this->addMeta('ci_params', array(
 			'studiensemester_kurzbz' => $studiensemester_kurzbz,
-			'studiengang_kz' => $studiengang_kz,
+			'studiengang_typ_kurzbz' => $studiengang_typ_kurzbz,
 			'orgform_kurzbz' => $orgform_kurzbz,
 			'semester' => $semester,
 			'verband' => $verband,
 			'gruppe' => $gruppe
 		));
 		
-		$this->fetchStudents($studiensemester_kurzbz, $studiengang_kz, $semester, $verband, $gruppe, null, $orgform_kurzbz);
+		$this->fetchStudents($studiensemester_kurzbz, $studiengang_typ_kurzbz, $semester, $verband, $gruppe, null, $orgform_kurzbz);
 	}

 	public function getStudentsSpezialgruppe(
 		$studiensemester_kurzbz,
-		$studiengang_kz,
+		$studiengang_typ_kurzbz,
 		$semester,
 		$gruppe_kurzbz
 	) {
 		$this->addMeta('ci_method', __FUNCTION__);
 		$this->addMeta('ci_params', array(
 			'studiensemester_kurzbz' => $studiensemester_kurzbz,
-			'studiengang_kz' => $studiengang_kz,
+			'studiengang_typ_kurzbz' => $studiengang_typ_kurzbz,
 			'semester' => $semester,
 			'gruppe_kurzbz' => $gruppe_kurzbz
 		));
 		
-		$this->fetchStudents($studiensemester_kurzbz, $studiengang_kz, $semester, null, null, $gruppe_kurzbz, null);
+		$this->fetchStudents($studiensemester_kurzbz, $studiengang_typ_kurzbz, $semester, null, null, $gruppe_kurzbz, null);
 	}

 	public function getStudentsOrgformSpezialgruppe(
 		$studiensemester_kurzbz,
 		$orgform_kurzbz,
-		$studiengang_kz,
+		$studiengang_typ_kurzbz,
 		$semester,
 		$gruppe_kurzbz
 	) {
@@ -517,17 +529,17 @@ class Students extends FHCAPI_Controller
 		$this->addMeta('ci_params', array(
 			'studiensemester_kurzbz' => $studiensemester_kurzbz,
 			'orgform_kurzbz' => $orgform_kurzbz,
-			'studiengang_kz' => $studiengang_kz,
+			'studiengang_typ_kurzbz' => $studiengang_typ_kurzbz,
 			'semester' => $semester,
 			'gruppe_kurzbz' => $gruppe_kurzbz
 		));
 		
-		$this->fetchStudents($studiensemester_kurzbz, $studiengang_kz, $semester, null, null, $gruppe_kurzbz, $orgform_kurzbz);
+		$this->fetchStudents($studiensemester_kurzbz, $studiengang_typ_kurzbz, $semester, null, null, $gruppe_kurzbz, $orgform_kurzbz);
 	}

 	/**
-	 * @param integer		$studiengang_kz
 	 * @param string		$studiensemester_kurzbz
+	 * @param string		$studiengang_typ_kurzbz
 	 * @param integer		$semester						(optional)
 	 * @param string		$verband						(optional)
 	 * @param integer		$gruppe							(optional)
@@ -538,13 +550,20 @@ class Students extends FHCAPI_Controller
 	 */
 	protected function fetchStudents(
 		$studiensemester_kurzbz,
-		$studiengang_kz,
+		$studiengang_typ_kurzbz,
 		$semester = null,
 		$verband = null,
 		$gruppe = null,
 		$gruppe_kurzbz = null,
 		$orgform_kurzbz = null
 	) {
+		$studiensemester_kurzbz = $this->getStudiensemesterKurzbz($studiensemester_kurzbz);
+		$studiengang_kz = $this->getStudiengangKz($studiengang_typ_kurzbz);
+		$orgform_kurzbz = $this->getOrgformKurzbz($orgform_kurzbz);
+
+		if ($studiengang_kz === null)
+			show_404();
+
 		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');

 		if (!$this->StudiensemesterModel->isValidStudiensemester($studiensemester_kurzbz))
@@ -556,6 +575,7 @@ class Students extends FHCAPI_Controller
 		$this->studentlistlib->addJoin("public.tbl_student s", "prestudent_id");

 		$this->studentlistlib->addSelect("'' AS priorisierung_relativ");
+		$this->studentlistlib->addSelect($this->PrestudentModel->escape($studiensemester_kurzbz) . ' as query_studiensemester_kurzbz');

 		if ($gruppe_kurzbz !== null) {
 			$this->studentlistlib->addJoin('public.tbl_benutzergruppe g', 'uid', '', 'after_b');
@@ -594,10 +614,22 @@ class Students extends FHCAPI_Controller
 		$result = $this->studentlistlib->execute($studiensemester_kurzbz);

 		$data = $this->getDataOrTerminateWithError($result);
-
+		$this->decodeTagsJsonInResult($data);
 		$this->terminateWithSuccess($data);
 	}

+	protected function decodeTagsJsonInResult(&$data)
+	{
+		if(defined('STV_TAGS_ENABLED') && STV_TAGS_ENABLED) {
+			array_walk($data, function($item, $key) {
+				if(isset($item->tags))
+				{
+					$item->tags = json_decode($item->tags);
+				}
+			});
+		}
+	}
+
 	/**
 	 * @param string		$prestudent_id
 	 *
@@ -611,6 +643,8 @@ class Students extends FHCAPI_Controller
 			'prestudent_id' => $prestudent_id,
 		));

+		$studiensemester_kurzbz = $this->getStudiensemesterKurzbz($studiensemester_kurzbz);
+
 		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');

 		if (!$this->StudiensemesterModel->isValidStudiensemester($studiensemester_kurzbz))
@@ -618,7 +652,7 @@ class Students extends FHCAPI_Controller
 			$this->terminateWithError($studiensemester_kurzbz . ' - ' . $this->p->t('lehre', 'error_noStudiensemester'));
 		}

-		
+
 		$this->studentlistlib->addSelect("COALESCE(
 			v.semester::text, 
 			CASE 
@@ -638,7 +672,7 @@ class Students extends FHCAPI_Controller
 		$result = $this->studentlistlib->execute($studiensemester_kurzbz);

 		$data = $this->getDataOrTerminateWithError($result);
-
+		$this->decodeTagsJsonInResult($data);
 		$this->terminateWithSuccess($data);
 	}

@@ -655,6 +689,8 @@ class Students extends FHCAPI_Controller
 			'student_uid' => $student_uid,
 		));

+		$studiensemester_kurzbz = $this->getStudiensemesterKurzbz($studiensemester_kurzbz);
+
 		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');

 		if (!$this->StudiensemesterModel->isValidStudiensemester($studiensemester_kurzbz))
@@ -664,14 +700,14 @@ class Students extends FHCAPI_Controller


 		$this->studentlistlib->addWhere('s.student_uid', $student_uid);
-		
+

 		$this->addFilter($studiensemester_kurzbz);

 		$result = $this->studentlistlib->execute($studiensemester_kurzbz);
 		
 		$data = $this->getDataOrTerminateWithError($result);
-
+		$this->decodeTagsJsonInResult($data);
 		$this->terminateWithSuccess($data);
 	}

@@ -689,6 +725,8 @@ class Students extends FHCAPI_Controller
 			'person_id' => $person_id,
 		));

+		$studiensemester_kurzbz = $this->getStudiensemesterKurzbz($studiensemester_kurzbz);
+
 		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');

 		if (!$this->StudiensemesterModel->isValidStudiensemester($studiensemester_kurzbz))
@@ -699,13 +737,13 @@ class Students extends FHCAPI_Controller

 		$this->studentlistlib->addWhere('p.person_id', $person_id);

-		
+
 		$this->addFilter($studiensemester_kurzbz);

 		$result = $this->studentlistlib->execute($studiensemester_kurzbz);
 		
 		$data = $this->getDataOrTerminateWithError($result);
-
+		$this->decodeTagsJsonInResult($data);
 		$this->terminateWithSuccess($data);
 	}

@@ -721,6 +759,8 @@ class Students extends FHCAPI_Controller
 			'studiensemester_kurzbz' => $studiensemester_kurzbz
 		));

+		$studiensemester_kurzbz = $this->getStudiensemesterKurzbz($studiensemester_kurzbz);
+
 		$this->load->library('SearchLib', [ 'config' => 'searchstv' ]);
 		$this->load->library('form_validation');

@@ -755,6 +795,7 @@ class Students extends FHCAPI_Controller
 			END
 		) AS semester", false);

+		$this->studentlistlib->addSelect($this->PrestudentModel->escape($studiensemester_kurzbz) . ' as query_studiensemester_kurzbz');

 		if ($prestudent_ids && $student_uids) {
 			$this->studentlistlib->addWhere('tbl_prestudent.prestudent_id', $prestudent_ids);
@@ -773,7 +814,7 @@ class Students extends FHCAPI_Controller
 		$result = $this->studentlistlib->execute($studiensemester_kurzbz);

 		$data = $this->getDataOrTerminateWithError($result);
-
+		$this->decodeTagsJsonInResult($data);
 		$this->terminateWithSuccess($data);
 	}

@@ -802,4 +843,55 @@ class Students extends FHCAPI_Controller
 			}
 		}
 	}
+
+	protected function getStudiengangKz($studiengang_typ_kurzbz)
+	{
+		$this->load->model('organisation/Studiengang_model', 'StudiengangModel');
+		$result = $this->StudiengangModel->loadWhere([
+			'LOWER(CONCAT(typ, kurzbz)) =' => strtolower($studiengang_typ_kurzbz)
+		]);
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		if (!$data)
+			return null;
+
+		return current($data)->studiengang_kz;
+	}
+
+	protected function getStudiensemesterKurzbz($studiensemester_kurzbz)
+	{
+		if ($studiensemester_kurzbz === null)
+			return null;
+
+		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+		$result = $this->StudiensemesterModel->loadWhere([
+			'LOWER(studiensemester_kurzbz) =' => strtolower($studiensemester_kurzbz)
+		]);
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		if (!$data)
+			return $studiensemester_kurzbz;
+
+		return current($data)->studiensemester_kurzbz;
+	}
+
+	protected function getOrgformKurzbz($orgform_kurzbz)
+	{
+		if ($orgform_kurzbz === null)
+			return null;
+
+		$this->load->model('codex/Orgform_model', 'OrgformModel');
+		$result = $this->OrgformModel->loadWhere([
+			'LOWER(orgform_kurzbz) =' => strtolower($orgform_kurzbz)
+		]);
+
+		$data = $this->getDataOrTerminateWithError($result);
+
+		if (!$data)
+			return $orgform_kurzbz;
+
+		return current($data)->orgform_kurzbz;
+	}
 }
@@ -15,7 +15,9 @@ class Tags extends Tag_Controller
 			'addTag' => self::BERECHTIGUNG_KURZBZ,
 			'updateTag' => self::BERECHTIGUNG_KURZBZ,
 			'doneTag' => self::BERECHTIGUNG_KURZBZ,
-			'deleteTag' => self::BERECHTIGUNG_KURZBZ
+			'deleteTag' => self::BERECHTIGUNG_KURZBZ,
+			'getAllTags' => self::BERECHTIGUNG_KURZBZ,
+			'rebuildTagsForTypeId' => self::BERECHTIGUNG_KURZBZ,
 		]);

 	$this->config->load('stv');
@@ -45,4 +47,5 @@ class Tags extends Tag_Controller
 	{
 		parent::doneTag($this->config->item('stv_prestudent_tags'));
 	}
+
 }
@@ -1,513 +0,0 @@
-<?php
-/**
- * Copyright (C) 2024 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');
-
-/**
- * This controller operates between (interface) the JS (GUI) and the back-end
- * Provides data to the ajax get calls about verbände
- * This controller works with JSON calls on the HTTP GET or POST and the output is always JSON
- */
-class Verband extends FHCAPI_Controller
-{
-	public function __construct()
-	{
-		$permissions = [];
-		$router = load_class('Router');
-		$permissions[$router->method] = ['admin:r', 'assistenz:r'];
-		parent::__construct($permissions);
-
-		// Load Models
-		$this->load->model('organisation/Studiengang_model', 'StudiengangModel');
-	}
-	
-	/**
-	 * Remap calls:
-	 * /
-	 * /(studiengang_kz)									=> getStudiengang
-	 * /(studiengang_kz)/(semester)							=> getSemester
-	 * /(studiengang_kz)/(semester)/(verband)				=> getVerband
-	 * /(studiengang_kz)/(org_form)							=> getStudiengang
-	 * /(studiengang_kz)/(org_form)/(semester)				=> getSemester
-	 * /(studiengang_kz)/(org_form)/(semester)/(verband)	=> getVerband
-	 *
-	 * @param string		$method
-	 * @param array			$params				(optional)
-	 *
-	 * @return void
-	 */
-	public function _remap($method, $params = [])
-	{
-		if ($method == '' || $method == 'index')
-			return $this->getBase();
-
-		// NOTE(chris): Test if access is allowed ($method is the Studiengang)
-		if (!$this->permissionlib->isBerechtigt('assistenz', 's', $method)
-			&& !$this->permissionlib->isBerechtigt('admin', 's', $method)
-		) {
-			return $this->_outputAuthError([$method => ['admin:r', 'assistenz:r']]);
-		}
-
-		$count = count($params);
-		if (!$count)
-			return $this->getStudiengang($method);
-
-		if ($count == 1) {
-			if (is_numeric($params[0]))
-				return $this->getSemester($method, $params[0]);
-			elseif ($params[0] == 'prestudent')
-				return $this->terminateWithSuccess($this->getStdSem($method . '/prestudent/', $method));
-			else
-				return $this->getStudiengang($method, $params[0]);
-		}
-		if ($count == 2) {
-			if (is_numeric($params[0]))
-				return $this->getVerband($method, $params[0], $params[1]);
-			elseif ($params[1] == 'prestudent')
-				return $this->terminateWithSuccess($this->getStdSem($method . '/' . $params[0] . '/prestudent/', $method));
-			else
-				return $this->getSemester($method, $params[1], $params[0]);
-		}
-		if ($count == 3 && !is_numeric($params[0]) && is_numeric($params[1]) && !is_numeric($params[2]))
-			return $this->getVerband($method, $params[1], $params[2], $params[0]);
-
-		show_404();
-	}
-
-	/**
-	 * @return void
-	 */
-	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);
-
-		if ($this->permissionlib->isBerechtigt('inout/uebersicht'))
-			$list[] = [
-				'name' => 'International',
-				'link' => 'inout',
-				'children' => [
-					[
-						'name' => 'Incoming',
-						'link' => 'inout/incoming',
-						'leaf' => true
-					],
-					[
-						'name' => 'Outgoing',
-						'link' => 'inout/outgoing',
-						'leaf' => true
-					],
-					[
-						'name' => 'Gemeinsame Studien',
-						'link' => 'inout/gemeinsamestudien',
-						'leaf' => true
-					]
-				]
-			];
-		$this->terminateWithSuccess($list);
-	}
-
-	/**
-	 * @param integer		$studiengang_kz
-	 * @param string		$orgform			(optional)
-	 *
-	 * @return void
-	 */
-	protected function getStudiengang($studiengang_kz, $org_form = null)
-	{
-		$link = $studiengang_kz . '/';
-		if ($org_form !== null)
-			$link .= $org_form . '/';
-
-		$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('semester');
-		$this->StudiengangModel->addSelect($this->StudiengangModel->escape($studiengang_kz) . '::integer AS stg_kz', false);
-		
-		$this->StudiengangModel->addOrder('semester');
-
-		if ($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);
-			$this->StudiengangModel->db->group_end();
-		}
-
-		$result = $this->StudiengangModel->loadWhere([
-			'v.studiengang_kz' => $studiengang_kz,
-			'v.aktiv' => true
-		]);
-		$list = $this->getDataOrTerminateWithError($result);
-
-		array_unshift($list, [
-			'name' => 'PreStudent',
-			'link' => $link . 'prestudent',
-			'no_sem_reload' => true,
-			'stg_kz' => (int)$studiengang_kz,
-			'children' => $this->getStdSem($link . 'prestudent/', $studiengang_kz)
-		]);
-
-		if ($org_form === null) {
-			// NOTE(chris): if mischform show orgforms
-			$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("studiengang_kz AS stg_kz");
-
-					$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);
-	}
-
-	/**
-	 * @param integer		$studiengang_kz
-	 * @param integer		$semester
-	 * @param string		$orgform
-	 *
-	 * @return void
-	 */
-	protected function getSemester($studiengang_kz, $semester, $org_form = null)
-	{
-		$link = $studiengang_kz . '/';
-		if ($org_form !== null)
-			$link .= $org_form . '/';
-		$link .= $semester . '/';
-
-
-		$this->load->model('organisation/Gruppe_model', 'GruppeModel');
-
-		$this->GruppeModel->addDistinct();
-		$this->GruppeModel->addSelect("CONCAT(" . $this->GruppeModel->escape($link . 'grp/') . ", gruppe_kurzbz) AS link", false);
-		$this->GruppeModel->addSelect("CONCAT(gruppe_kurzbz, ' (', bezeichnung, ')') AS name", false);
-		$this->GruppeModel->addSelect("TRUE AS leaf", false);
-
-		$this->GruppeModel->addSelect('sort');
-		$this->GruppeModel->addSelect('gruppe_kurzbz');
-		$this->GruppeModel->addSelect($this->GruppeModel->escape($studiengang_kz) . '::integer AS stg_kz', false);
-
-		$this->GruppeModel->addOrder('sort');
-		$this->GruppeModel->addOrder('gruppe_kurzbz');
-
-		$where = [
-			'studiengang_kz' => $studiengang_kz,
-			'semester' => $semester,
-			'lehre' => true,
-			'sichtbar' => true,
-			'aktiv' => true,
-			'direktinskription' => false
-		];
-
-		if ($org_form !== null)
-			$where['orgform_kurzbz'] = $org_form;
-
-		$result = $this->GruppeModel->loadWhere($where);
-
-		$list = $this->getDataOrTerminateWithError($result);
-
-		$this->StudiengangModel->addJoin('public.tbl_lehrverband v', 'studiengang_kz');
-		
-		$this->StudiengangModel->addSelect("CONCAT(" . $this->StudiengangModel->escape($link) . ", verband) AS link", false);
-		$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);
-		
-		$this->StudiengangModel->addOrder('verband');
-
-		$this->StudiengangModel->addGroupBy('link, name, verband');
-		
-		$where = [
-			'v.studiengang_kz' => $studiengang_kz,
-			'v.semester' => $semester,
-			'v.verband !=' => '',
-			'v.aktiv' => true
-		];
-
-		if ($org_form !== null && $semester) // NOTE(chris): on semester 0 show all?
-			$where['v.orgform_kurzbz'] = $org_form;
-
-		$result = $this->StudiengangModel->loadWhere($where);
-		$result = $this->getDataOrTerminateWithError($result);
-
-		$list = array_merge($list, $result);
-
-		$this->terminateWithSuccess($list);
-	}
-
-	/**
-	 * @param integer		$studiengang_kz
-	 * @param integer		$semester
-	 * @param integer		$verband
-	 * @param string		$orgform
-	 *
-	 * @return void
-	 */
-	protected function getVerband($studiengang_kz, $semester, $verband, $org_form = null)
-	{
-		$link = $studiengang_kz . '/';
-		if ($org_form !== null)
-			$link .= $org_form . '/';
-		$link .= $semester . '/'. $verband . '/';
-
-
-		$this->StudiengangModel->addJoin('public.tbl_lehrverband v', 'studiengang_kz');
-		
-		$this->StudiengangModel->addDistinct();
-		$this->StudiengangModel->addSelect("CONCAT(" . $this->StudiengangModel->escape($link) . ", gruppe) AS link", false);
-		$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);
-		
-		$this->StudiengangModel->addOrder('gruppe');
-
-		$where = [
-			'v.studiengang_kz' => $studiengang_kz,
-			'v.semester' => $semester,
-			'v.verband' => $verband,
-			'v.gruppe !=' => '',
-			'v.aktiv' => true
-		];
-
-		if ($org_form !== null && $semester) // NOTE(chris): on semester 0 show all?
-			$where['v.orgform_kurzbz'] = $org_form;
-
-		$result = $this->StudiengangModel->loadWhere($where);
-
-		$list = $this->getDataOrTerminateWithError($result);
-
-		$this->terminateWithSuccess($list);
-	}
-
-	/**
-	 * @param string		$link
-	 * @param integer		$studiengang_kz
-	 *
-	 * @return array
-	 */
-	protected function getStdSem($link, $studiengang_kz)
-	{
-		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
-
-		$this->load->model('system/Variable_model', 'VariableModel');
-		$result = $this->VariableModel->getVariables(getAuthUID(), ['number_displayed_past_studiensemester']);
-		$data = $this->getDataOrTerminateWithError($result);
-
-		$this->load->config('stv');
-		$number_displayed_past_studiensemester_default = $this->config->item('number_displayed_past_studiensemester_default');
-
-		$number_displayed_past_studiensemester = $data['number_displayed_past_studiensemester'] ?? $number_displayed_past_studiensemester_default;
-
-		$this->StudiensemesterModel->addPlusMinus(null, $number_displayed_past_studiensemester);
-		$this->StudiensemesterModel->addOrder('ende');
-		$result = $this->StudiensemesterModel->load();
-
-		$studiensemester = $this->getDataOrTerminateWithError($result);
-		$result = [];
-
-		$studiengang_kz = (int)$studiengang_kz;
-
-		foreach ($studiensemester as $sem) {
-			$semlink = $link . $sem->studiensemester_kurzbz;
-			$intlink = $semlink . '/interessenten';
-			$result[] = [
-				'name' => $sem->studiensemester_kurzbz,
-				'link' => $semlink,
-				'stg_kz' => $studiengang_kz,
-				'children' => [
-					[
-						'name' => 'Interessenten',
-						'link' => $intlink,
-						'stg_kz' => $studiengang_kz,
-						'children' => [
-							[
-								'name' => 'Bewerbung nicht abgeschickt',
-								'link' => $intlink . '/bewerbungnichtabgeschickt',
-								'stg_kz' => $studiengang_kz,
-								'leaf' => true
-							],
-							[
-								'name' => 'Bewerbung abgeschickt, Status unbestätigt',
-								'link' => $intlink . '/bewerbungabgeschickt',
-								'stg_kz' => $studiengang_kz,
-								'leaf' => true
-							],
-							[
-								'name' => 'ZGV erfüllt',
-								'link' => $intlink . '/zgv',
-								'stg_kz' => $studiengang_kz,
-								'leaf' => true
-							],
-							[
-								'name' => 'Status bestätigt',
-								'link' => $intlink . '/statusbestaetigt',
-								'stg_kz' => $studiengang_kz,
-								'children' => [
-									[
-										'name' => 'Nicht zum Reihungstest angemeldet',
-										'link' => $intlink . '/statusbestaetigtrtnichtangemeldet',
-										'leaf' => true
-									],
-									[
-										'name' => 'Reihungstest angemeldet',
-										'link' => $intlink . '/statusbestaetigtrtangemeldet',
-										'leaf' => true
-									]
-								]
-							],
-							[
-								'name' => 'Nicht zum Reihungstest angemeldet',
-								'link' => $intlink . '/reihungstestnichtangemeldet',
-								'stg_kz' => $studiengang_kz,
-								'leaf' => true
-							],
-							[
-								'name' => 'Reihungstest angemeldet',
-								'link' => $intlink . '/reihungstestangemeldet',
-								'stg_kz' => $studiengang_kz,
-								'leaf' => true
-							]
-						]
-					],
-					[
-						'name' => 'Bewerber',
-						'link' => $semlink . '/bewerber',
-						'stg_kz' => $studiengang_kz,
-						'children' => [
-							[
-								'name' => 'Nicht zum Reihungstest angemeldet',
-								'link' => $intlink . '/bewerberrtnichtangemeldet',
-								'stg_kz' => $studiengang_kz,
-								'leaf' => true
-							],
-							[
-								'name' => 'Reihungstest angemeldet',
-								'link' => $intlink . '/bewerberrtangemeldet',
-								'stg_kz' => $studiengang_kz,
-								'children' => [
-									[
-										'name' => 'Teilgenommen',
-										'link' => $intlink . '/bewerberrtangemeldetteilgenommen',
-										'stg_kz' => $studiengang_kz,
-										'leaf' => true
-									],
-									[
-										'name' => 'Nicht teilgenommen',
-										'link' => $intlink . '/bewerberrtangemeldetnichtteilgenommen',
-										'stg_kz' => $studiengang_kz,
-										'leaf' => true
-									]
-								]
-							]
-						]
-					],
-					[
-						'name' => 'Aufgenommen',
-						'link' => $semlink . '/aufgenommen',
-						'stg_kz' => $studiengang_kz,
-						'leaf' => true
-					],
-					[
-						'name' => 'Warteliste',
-						'link' => $semlink . '/warteliste',
-						'stg_kz' => $studiengang_kz,
-						'leaf' => true
-					],
-					[
-						'name' => 'Absage',
-						'link' => $semlink . '/absage',
-						'stg_kz' => $studiengang_kz,
-						'leaf' => true
-					],
-					[
-						'name' => 'Incoming',
-						'link' => $semlink . '/incoming',
-						'stg_kz' => $studiengang_kz,
-						'leaf' => true
-					]
-				]
-			];
-		}
-
-		return $result;
-	}
-}
@@ -37,6 +37,7 @@ class Tag extends API_Controller

 		if (isset($tag))
 		{
+			$this->TagModel->addJoin('public.tbl_notiz_typ', 'typ_kurzbz', 'typ_kurzbz');
 			$result = $this->TagModel->load($tag);

 			$this->response($result, REST_Controller::HTTP_OK);
@@ -14,11 +14,11 @@ class Mylv extends Auth_Controller
 	public function __construct()
 	{
 		parent::__construct([
-			'Student' => ['student/anrechnung_beantragen:r','user:r'], // TODO(chris): permissions?
-			'Studiensemester' => ['student/anrechnung_beantragen:r','user:r'], // TODO(chris): permissions?
-			'Lvs' => ['student/anrechnung_beantragen:r','user:r'], // TODO(chris): permissions?
-			'Info' => ['student/anrechnung_beantragen:r','user:r'], // TODO(chris): permissions?
-			'Pruefungen' => ['student/anrechnung_beantragen:r','user:r'] // TODO(chris): permissions?
+			'Student' => self::PERM_LOGGED,
+			'Studiensemester' => self::PERM_LOGGED,
+			'Lvs' => self::PERM_LOGGED,
+			'Info' => self::PERM_LOGGED,
+			'Pruefungen' => self::PERM_LOGGED
 		]);
 	}

@@ -1,78 +0,0 @@
-<?php
-
-if (! defined('BASEPATH')) exit('No direct script access allowed');
-
-class Studiensemester extends Auth_Controller
-{
-	public function __construct()
-	{
-		// TODO(chris): access!
-		parent::__construct([
-			'index' => self::PERM_LOGGED,
-			'now' => self::PERM_LOGGED,
-			'set' => self::PERM_LOGGED
-		]);
-	}
-
-	public function index()
-	{
-		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
-
-		$this->StudiensemesterModel->addOrder('start');
-
-		$result = $this->StudiensemesterModel->load();
-
-		if (isError($result)) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-		}
-		$this->outputJson($result);
-	}
-
-	public function now()
-	{
-		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
-
-		$result = $this->StudiensemesterModel->getNearest();
-
-		if (isError($result)) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-			$this->outputJson(getError($result));
-		}
-		$result = getData($result) ?: [];
-
-		if (count($result) != 1) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-			$this->outputJsonError(count($result) ? 'Mehrere Studiensemester aktiv' : 'Kein Studiensemester aktiv');
-		} else {
-			$this->outputJsonSuccess(current($result)->studiensemester_kurzbz);
-		}
-	}
-
-	public function set()
-	{
-		$this->load->library('AuthLib');
-		$this->load->library('form_validation');
-
-		$_POST = json_decode(utf8_encode($this->input->raw_input_stream), true);
-
-		$this->form_validation->set_rules('studiensemester', 'Studiensemester', 'required');
-
-		if ($this->form_validation->run() == false) {
-			$this->output->set_status_header(REST_Controller::HTTP_BAD_REQUEST);
-			return $this->outputJsonError($this->form_validation->error_array());
-		}
-
-		$stdsem = $this->input->post('studiensemester');
-
-		$this->load->model('system/Variable_model', 'VariableModel');
-
-		$result = $this->VariableModel->setVariable(getAuthUID(), 'semester_aktuell', $stdsem);
-
-		if (isError($result)) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-			return $this->outputJson($result);
-		}
-
-		$this->outputJsonSuccess(true);
-	}
-}
@@ -290,6 +290,38 @@ class AbgabetoolJob extends JOB_Controller
 		}
 	}

+	/**
+	 * helper to tell apart an actually new/edited abgabetermin from an upload or a benotung, since all
+	 * three write updatevon/updateamum on the same paabgabe row and the row itself keeps no change history.
+	 * uploads and benotungen have their own notifications, reporting them as changed termine is what made
+	 * betreuer/assistenz receive "Termine hinzugefügt oder bearbeitet" after a student uploaded a file.
+	 */
+	private function isNewOrEditedTermin($abgabe) {
+		// never updated, so the termin itself was created within the interval
+		if (empty($abgabe->updatevon)) {
+			return true;
+		}
+
+		// the student can only ever write abgabedatum by uploading -> notifyBetreuerMail/notifyStudentMail report those
+		if ($abgabe->student_uid === $abgabe->updatevon) {
+			return false;
+		}
+
+		// upload done by assistenz/betreuer on behalf of the student: abgabedatum is written on the day of the update
+		if (!empty($abgabe->abgabedatum) && !empty($abgabe->updateamum)
+			&& substr($abgabe->abgabedatum, 0, 10) === substr($abgabe->updateamum, 0, 10)) {
+			return false;
+		}
+
+		// typ and datum of a benoteter termin are locked (see Abgabe->postProjektarbeitAbgabe), so an update
+		// on it is either the benotung itself or a cosmetic edit - neither is a termin change
+		if ($abgabe->note !== null) {
+			return false;
+		}
+
+		return true;
+	}
+
 	public function notifyAssistenzAboutChangedAbgaben() {

 		$this->_ci->logInfo('Start job FHC-Core->notifyAssistenzAboutChangedAbgaben');
@@ -298,7 +330,7 @@ class AbgabetoolJob extends JOB_Controller
 		$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($retval) == 0) {
@@ -314,7 +346,12 @@ class AbgabetoolJob extends JOB_Controller
 			if (isset($newOrChangedAbgabe->projektarbeit_id)) {
 				$projektarbeitId = $newOrChangedAbgabe->projektarbeit_id;

-				// If the 'projektarbeit_id' is not yet a key in $projektarbeiten, 
+				// uploads and benotungen are no termin changes, they have their own notifications
+				if (!$this->isNewOrEditedTermin($newOrChangedAbgabe)) {
+					continue;
+				}
+
+				// If the 'projektarbeit_id' is not yet a key in $projektarbeiten,
 				// initialize it as an empty array.
 				if (!isset($projektarbeiten[$projektarbeitId])) {
 					$projektarbeiten[$projektarbeitId] = [];
@@ -325,6 +362,11 @@ class AbgabetoolJob extends JOB_Controller
 			}
 		}

+		if(count($projektarbeiten) == 0) {
+			$this->_ci->logInfo("Keine Emails an Assistenzen über neue oder veränderte Termine versandt");
+			return;
+		}
+
 		// for each projektarbeit fetch their assistenz and same them in their own dictionary to avoid too many mails
 		$assistenzMap = [];
 		// for each projektarbeit fetch their betreuer and save them in their own dictionary to avoid too many mails
@@ -515,14 +557,12 @@ class AbgabetoolJob extends JOB_Controller
 			if (isset($newOrChangedAbgabe->projektarbeit_id)) {
 				$projektarbeitId = $newOrChangedAbgabe->projektarbeit_id;

-				// check if the updatevon field is NOT the same as the student the projektarbeit is assigned to
-				// since uploading a file to a paabgabe is also putting updateamum & updatevon
-				// we have our own "student has uploaded a file" emailjob anyways
-				if($newOrChangedAbgabe->student_uid === $newOrChangedAbgabe->updatevon) {
+				// uploads and benotungen are no termin changes, they have their own notifications
+				if (!$this->isNewOrEditedTermin($newOrChangedAbgabe)) {
 					continue;
 				}
-				
-				// If the 'projektarbeit_id' is not yet a key in $projektarbeiten, 
+
+				// If the 'projektarbeit_id' is not yet a key in $projektarbeiten,
 				// initialize it as an empty array.
 				if (!isset($projektarbeiten[$projektarbeitId])) {
 					$projektarbeiten[$projektarbeitId] = [];
@@ -720,61 +760,112 @@ class AbgabetoolJob extends JOB_Controller
 		forEach ($betreuer_uids as $person_id => $abgaben) {
 			// $person_id is from betreuer

-			$result = $this->_ci->ProjektarbeitModel->getProjektbetreuerAnrede($person_id);
-			$data = getData($result)[0];
+			// resolve the recipient by the person_id the mail was grouped by. resolving it by
+			// projektarbeit_id + betreuerart of the first abgabe addressed the wrong person as soon as a
+			// projektarbeit had two betreuer of the same art
+			$result = $this->_ci->ProjektbetreuerModel->getBetreuerByPersonId($person_id);
+			$betreuerArr = getData($result);

-			$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>";
+			if(!$betreuerArr) {
+				$this->_ci->logInfo('Could not load Betreuer PersonID: "'.$person_id.'".');
+				continue;
 			}

-			$abgabenString .= '</tbody></table>';
+			$betreuer = $betreuerArr[0];
+
+			$email = $betreuer->uid ? $betreuer->uid."@".DOMAIN : $betreuer->private_email;
+
+			// in rare cases there are betreuer (often zweitbetreuer) without uid and without private email
+			if(!$email) {
+				$this->_ci->logInfo('Could not send Email for Betreuer PersonID: "'.$person_id.'".');
+				continue;
+			}
+
+			$anrede = $betreuer->anrede;
+			$anredeFillString = $betreuer->anrede == "Herr" ? "r" : "";
+			$fullFormattedNameString = $betreuer->first;
+
+			// a betreuer can supervise several projektarbeiten, so group the uploads and give each one its
+			// own section instead of printing one projektarbeit title above uploads of all of them
+			$abgabenProProjektarbeit = [];
+			forEach($abgaben as $abgabe) {
+				$abgabenProProjektarbeit[$abgabe->projektarbeit_id][] = $abgabe;
+			}
+
+			// start the container
+			$abgabenString = '<div style="font-family: Arial, sans-serif; color: #333;">';
+
+			forEach($abgabenProProjektarbeit as $projektarbeit_id => $projektarbeitAbgaben) {
+
+				// sorting $projektarbeitAbgaben array by datum
+				usort($projektarbeitAbgaben, function ($a, $b) {
+					return strtotime($a->datum) <=> strtotime($b->datum);
+				});
+
+				// format the student name
+				$s = $projektarbeitAbgaben[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: {$s->betreuerart_kurzbz} |
+							Stg: {$s->stgtyp}{$s->stgkz} ({$s->studiensemester_kurzbz})
+						</span>
+					</div>";
+
+				// start table
+				$abgabenString .= '
+					<table style="width: 100%; border-collapse: collapse; margin-bottom: 25px;">
+						<thead>
+							<tr style="background-color: #eee; text-align: left;">
+								<th style="padding: 10px; border: 1px solid #ddd; font-size: 13px; width: 20%;">Zieldatum</th>
+								<th style="padding: 10px; border: 1px solid #ddd; font-size: 13px;">Bezeichnung</th>
+								<th style="padding: 10px; border: 1px solid #ddd; font-size: 13px; width: 20%;">Abgabedatum</th>
+							</tr>
+						</thead>
+						<tbody>';
+
+				foreach ($projektarbeitAbgaben as $abgabe) {
+					// 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;'>
+								<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>';
+			}
+
+			// close container
+			$abgabenString .= '</div>';
+
+			// the template prints one projektarbeit title, which only holds when the mail covers a single one
+			$paTitel = count($abgabenProProjektarbeit) === 1
+				? ($abgaben[0]->titel ?? 'Kein Titel vergeben')
+				: $this->p->t('abgabetool', 'c4mehrereProjektarbeiten');

 			$path = $this->_ci->config->item('URL_MITARBEITER');
 			$url = CIS_ROOT.$path;
@@ -783,28 +874,17 @@ class AbgabetoolJob extends JOB_Controller
 				'anrede' => $anrede,
 				'anredeFillString' => $anredeFillString,
 				'fullFormattedNameString' => $fullFormattedNameString,
-				'paTitel' => $projektarbeit_titel,
+				'paTitel' => $paTitel,
 				'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 : $data->private_email;
-
-			// in rare cases there are betreuer (often zweitbetreuer) without uid and without private email
-			if(!$email) {
-				$this->_ci->logInfo('Could not send Email for Betreuer PersonID: "'.$data->person_id.'".');
-				continue;
-			}
-			
 			// send email with bundled info
 			sendSanchoMail(
 				'PaabgabeUpdatesBetSM',
 				$body_fields,
 				$email,
-				$this->p->t('abgabetool', 'changedAbgabeterminev2')
+				$this->p->t('abgabetool', 'c4newUploadsNotification')
 			);

 			$count++;
@@ -125,7 +125,7 @@ class AntragJob extends JOB_Controller
 					$stgLeitungen[$leitung->uid]['stgs'][] = $antrag->studiengang_kz;
 				}

-				$result = $this->StudierendenantragModel->getStgAndSem($antrag->studierendenantrag_id);
+				$result = $this->StudierendenantragModel->getStgAndDetails($antrag->studierendenantrag_id);
 				if (isError($result))
 				{
 					$this->logError(getError($result));
@@ -803,7 +803,7 @@ class ReihungstestJob extends JOB_Controller
 	{
 		if (!isset($studiensemester) || isEmptyString($studiensemester))
 		{
-			$this->logError("Studiensemster not passed as parameter");
+			$this->logError("Studiensemester not passed as parameter");
 			return;
 		}

@@ -0,0 +1,110 @@
+<?php
+
+if (!defined("BASEPATH")) exit("No direct script access allowed");
+
+use \DateTime as DateTime;
+
+class TagJob extends JOB_Controller
+{
+	/**
+	 * API constructor
+	 */
+	public function __construct()
+	{
+		parent::__construct();
+
+		// Configs
+		$this->load->config('stv');
+
+		// Library
+		$this->load->library('TagLib');
+
+		// Load Models
+		$this->load->model('crm/Prestudentstatus_model', 'PrestudentstatusModel');
+		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+		$this->load->model('system/Notiztyp_model', 'NotiztypModel');
+
+		$this->loadPhrases([
+			'lehre'
+		]);
+	}
+
+	public function rebuildAutomatedTags()
+	{
+		$automatedTagsRes = $this->NotiztypModel->loadWhere(array('automatisiert' => true, 'taglib IS NOT NULL' => null));
+		$automatedTags = hasData($automatedTagsRes) ? getData($automatedTagsRes) : [];
+
+
+		$result = $this->StudiensemesterModel->getAktOrNextSemester();
+		if (isError($result))
+		{
+			$this->logInfo('Start Job rebuild Automated Tags');
+			$this->logError('Error occurred during retrieving studiensemester');
+			return $this->logInfo('End Job rebuild Automated Tags');
+		}
+
+		if (empty($result->retval) || !isset($result->retval[0])) {
+			$this->logInfo('Start Job rebuild Automated Tags');
+			$this->logError('No Studiensemester found');
+			return $this->logInfo('End Job rebuild Automated Tags');
+		}
+		$studiensemester_kurzbz = $result->retval[0]->studiensemester_kurzbz ?? null;
+		$params = array(
+			'studiensemester_kurzbz' => $studiensemester_kurzbz
+		);
+
+		$this->logInfo('Start Job rebuild Automated Tags ' . $studiensemester_kurzbz);
+		foreach($automatedTags as $autoTag)
+		{
+			// getPath: must not be lost
+			$filePath = APPPATH . 'libraries/' . $autoTag->taglib . '.php'; // APPPATH = application/
+
+			if(file_exists($filePath)) {
+				require_once($filePath);
+			} else {
+				$this->logInfo("File not found: " . $filePath);
+				continue;
+			}
+
+			$kurz_bz = $autoTag->typ_kurzbz;
+			// className without PATH (basename)
+			$className = basename($autoTag->taglib);
+
+			$obj = new $className();
+
+			$outputArray = $obj->getZuordnungIds($params);
+			$typeId = $outputArray->typeId;
+
+			$paramsTag = array(
+				'studiensemester_kurzbz' => $studiensemester_kurzbz,
+				'kurzbz' => $kurz_bz,
+				'data' => $outputArray->data,
+				'typeId' => $typeId
+			);
+
+			$result = $this->taglib->updateAutomatedTags($paramsTag);
+
+			if (isError($result)) {
+				$this->logError('Error occurred during updateAutomatedTags ' . $kurz_bz);
+				continue;
+			}
+
+			$data = is_array($result) ? $result['retval'] : $result->retval;
+
+			//SUMMARY
+			$this->logInfo("Tag " . $result->retval['input']['tag'] . " | type_id " . $typeId . " --"
+			. " Count Recycled: " . $result->retval['summary']['recycled']
+			. " Count Added: ".  $result->retval['summary']['added']
+			. " Count Deleted: ".  $result->retval['summary']['deleted']);
+
+			//DETAILS
+			if($result->retval['results']['newTags'])
+				$this->logInfo("Tag " . $result->retval['input']['tag'] . "New tag(s): " .  implode(', ', $result->retval['results']['newTags']));
+			if($result->retval['results']['deletedTagsIds'])
+				$this->logInfo("Tag " . $result->retval['input']['tag'] . "Deleted tags(s: " . implode(', ', $result->retval['results']['deletedTagsIds']));
+			if ($result->retval['results']['retaggedIds'])
+				$this->logInfo("Tag " . $result->retval['input']['tag'] . "Recycled tag(s): " . implode(', ', $result->retval['results']['retaggedIds']));
+		}
+		$this->logInfo( "End Job rebuild Automated Tags");
+	}
+}
@@ -0,0 +1,60 @@
+<?php
+/**
+ * Copyright (C) 2026 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');
+
+/**
+ * This controller generates javascript from snippets for tabulator columns
+ */
+class Tabulatorcolumns extends Auth_Controller
+{
+	public function __construct()
+	{
+		parent::__construct([
+			'stv' => ['admin:r', 'assistenz:r'],
+			'lvverwaltung' => ['admin:r', 'assistenz:r']
+		]);
+	}
+
+	/**
+	 * Render tabulator columns for config
+	 *
+	 * @param string				$config
+	 *
+	 * @return void
+	 */
+	public function _remap($config)
+	{
+		$this->load->config($config);
+		$list_columns = $this->config->item('list_columns') ?: [];
+
+		$snippets = [
+			'jssnippets/tabulatorcolumns/' . $config . '.js'
+		];
+
+		foreach ($list_columns as $col) {
+			$snippets[] = $col['js'];
+		}
+
+		$this->output->set_content_type('application/javascript');
+
+		$this->load->view('jssnippets/tabulatorcolumns.js', [
+			'snippets' => $snippets
+		]);
+	}
+}
@@ -25,7 +25,8 @@ class Studierendenantrag extends FHC_Controller

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

 		$this->load->config('studierendenantrag');
@@ -198,7 +198,19 @@ class Gradelist extends Auth_Controller
 			if (!isset($row_noten->found))
 			{
 				$result_lv = $this->LehrveranstaltungModel->load($row_noten->lehrveranstaltung_id);
-				$result_stg = $this->StudiengangModel->load($result_lv->retval[0]->studiengang_kz);
+
+				$studiengang_kz = null;
+
+				if (!empty($result_lv->retval) && isset($result_lv->retval[0]) && isset($result_lv->retval[0]->studiengang_kz))
+				{
+					$result_stg = $this->StudiengangModel->load($result_lv->retval[0]->studiengang_kz);
+
+					if (!empty($result_stg->retval) && isset($result_stg->retval[0]) && is_object($result_stg->retval[0]) && isset($result_stg->retval[0]->kurzbzlang))
+					{
+						$studiengang_kz = $result_stg->retval[0]->kurzbzlang;
+					}
+				}
+
 				$courses['semester'][$row_noten->studiensemester_kurzbz]['lvs_nonstpl'][] = array(
 					'lehrveranstaltung_id' => $row_noten->lehrveranstaltung_id,
 					'lehrtyp_kurzbz' => $result_lv->retval[0]->lehrtyp_kurzbz,
@@ -212,8 +224,8 @@ class Gradelist extends Auth_Controller
 					'semester' => $result_lv->retval[0]->semester,
 					'note' => $row_noten->note,
 					'datum' => $row_noten->benotungsdatum,
-					'zugeordnet' => true,
-					'studiengang_kurzbz' => $result_stg->retval[0]->kurzbzlang
+					'studiengang_kurzbz' => $studiengang_kz,
+					'zugeordnet' => true
 				);
 				if(!isset($courses['semester'][$row_noten->studiensemester_kurzbz]['data']['ectssumme_nonstpl']))
 					$courses['semester'][$row_noten->studiensemester_kurzbz]['data']['ectssumme_nonstpl'] = 0;
@@ -7,7 +7,7 @@ class Tag_Controller extends FHCAPI_Controller
 {
 	private $_uid;

-	const BERECHTIGUNG_KURZBZ = 'admin:rw';
+	const BERECHTIGUNG_KURZBZ = ['admin:rw'];

 	public function __construct($permissions)
 	{
@@ -15,10 +15,11 @@ class Tag_Controller extends FHCAPI_Controller
 			'getTag' => self::BERECHTIGUNG_KURZBZ,
 			'getTags' => self::BERECHTIGUNG_KURZBZ,
 			'addTag' => self::BERECHTIGUNG_KURZBZ,
-
 			'updateTag' => self::BERECHTIGUNG_KURZBZ,
 			'doneTag' => self::BERECHTIGUNG_KURZBZ,
 			'deleteTag' => self::BERECHTIGUNG_KURZBZ,
+			'getAllTags' => self::BERECHTIGUNG_KURZBZ,
+			'rebuildTagsForTypeId' => self::BERECHTIGUNG_KURZBZ,
 		];

 		$merged_permissions = array_merge($default_permissions, $permissions);
@@ -26,6 +27,10 @@ class Tag_Controller extends FHCAPI_Controller
 		parent::__construct($merged_permissions);

 		$this->_setAuthUID();
+
+		// Library
+		$this->load->library('TagLib');
+
 		$this->load->model('person/Notiz_model', 'NotizModel');
 		$this->load->model('system/Notiztyp_model', 'NotiztypModel');
 		$this->load->model('person/Notizzuordnung_model', 'NotizzuordnungModel');
@@ -38,6 +43,8 @@ class Tag_Controller extends FHCAPI_Controller
 	public function getTag($readonly_tags = null)
 	{
 		$language = $this->_getLanguageIndex();
+		$index_bezeichnung_mehrsprachig = $language - 1;
+
 		$id = $this->input->get('id');

 		if (is_array($readonly_tags) && !isEmptyArray($readonly_tags))
@@ -62,14 +69,18 @@ class Tag_Controller extends FHCAPI_Controller
 		$this->NotizModel->addSelect(
 			"tbl_notiz.titel, 
 			tbl_notiz.text, 
-			array_to_json(bezeichnung_mehrsprachig::varchar[])->>". $language. " as bezeichnung,
+			array_to_json(bezeichnung_mehrsprachig::varchar[])->>". $index_bezeichnung_mehrsprachig . " as bezeichnung,
 			tbl_notiz.notiz_id,
 			tbl_notiz_typ.style,
+			tbl_notiz_typ.automatisiert,
+			tbl_notiz_typ.prioritaet,
 			tbl_notiz.erledigt as done,
 			tbl_notiz.insertamum,
 			tbl_notiz.updateamum,
 			(verfasserperson.vorname || ' ' || verfasserperson.nachname || ' ' || '(' || verfasserbenutzer.uid || ')') as verfasser,
-			(bearbeiterperson.vorname || ' ' || bearbeiterperson.nachname || ' ' || '(' || bearbeiterbenutzer.uid || ')') as bearbeiter
+			(bearbeiterperson.vorname || ' ' || bearbeiterperson.nachname || ' ' || '(' || bearbeiterbenutzer.uid || ')') as bearbeiter,
+			tbl_notiz.start,
+			tbl_notiz.ende
 			"
 		);
 		$this->NotizModel->addJoin('public.tbl_notiz_typ', 'public.tbl_notiz.typ = public.tbl_notiz_typ.typ_kurzbz');
@@ -82,18 +93,24 @@ class Tag_Controller extends FHCAPI_Controller

 		$notiz = $this->NotizModel->loadWhere(array('notiz_id' => $id));

+
 		$this->terminateWithSuccess(hasData($notiz) ? getData($notiz)[0] : array());
 	}

 	public function getTags($tags = null)
 	{
+		$language = $this->_getLanguageIndex();
+		$index_bezeichnung_mehrsprachig = $language - 1;
+
 		$this->NotiztypModel->addSelect(
-			'typ_kurzbz as tag_typ_kurzbz,
-			array_to_json(bezeichnung_mehrsprachig::varchar[])->>0 as bezeichnung,
+			"typ_kurzbz as tag_typ_kurzbz,
+			array_to_json(bezeichnung_mehrsprachig::varchar[])->>". $index_bezeichnung_mehrsprachig . " as bezeichnung,
 			style,
 			beschreibung,
-			tag
-			'
+			tag,
+			automatisiert,
+			prioritaet
+			"
 		);
 		$this->NotiztypModel->addOrder('prioritaet');

@@ -271,6 +288,90 @@ class Tag_Controller extends FHCAPI_Controller
 		$this->terminateWithSuccess($deleteNotiz);
 	}

+	public function getAllTags($readonly_tags = false)
+	{
+		$language = $this->_getLanguageIndex();
+		$index_bezeichnung_mehrsprachig = $language - 1;
+		$prestudent_id = $this->input->get('prestudent_id');
+
+		if (is_array($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,
+			array_to_json(bezeichnung_mehrsprachig::varchar[])->>". $index_bezeichnung_mehrsprachig . " as bezeichnung,
+			tbl_notiz.notiz_id,
+			tbl_notiz_typ.style,
+			tbl_notiz_typ.automatisiert,
+			tbl_notiz_typ.prioritaet,
+			tbl_notiz.erledigt as done,
+			tbl_notiz.insertamum,
+			tbl_notiz.updateamum,
+			(verfasserperson.vorname || ' ' || verfasserperson.nachname || ' ' || '(' || verfasserbenutzer.uid || ')') as verfasser,
+			(bearbeiterperson.vorname || ' ' || bearbeiterperson.nachname || ' ' || '(' || bearbeiterbenutzer.uid || ')') as bearbeiter,
+			tbl_notiz.start,
+			tbl_notiz.ende
+			"
+		);
+		$this->NotizModel->addJoin('public.tbl_notiz_typ', 'public.tbl_notiz.typ = public.tbl_notiz_typ.typ_kurzbz');
+
+		$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.bearbeiter_uid = bearbeiterbenutzer.uid', 'LEFT');
+		$this->NotizModel->addJoin('public.tbl_person bearbeiterperson', 'bearbeiterbenutzer.person_id = bearbeiterperson.person_id', 'LEFT');
+
+		$this->NotizModel->addJoin('public.tbl_notizzuordnung notizzuordnung', 'tbl_notiz.notiz_id = notizzuordnung.notiz_id');
+
+		$this->NotizModel->addOrder('done');
+		$this->NotizModel->addOrder('tbl_notiz_typ.prioritaet');
+		$notiz = $this->NotizModel->loadWhere(array('prestudent_id' => $prestudent_id));
+
+
+		$this->terminateWithSuccess(hasData($notiz) ? getData($notiz) : array());
+	}
+
+	public function rebuildTagsForTypeId()
+	{
+		$ids = $this->input->post('ids');
+		$typeId = $this->input->post('typeId');
+		$semester = $this->input->post('sem');
+
+		$idsSuccess = [];
+		$idsError = [];
+		$outputResult = [];
+
+		foreach ($ids as $id)
+		{
+			$result = $this->taglib->rebuildTagsForTypeId($typeId, $id, $semester);
+
+			if (isError($result))
+				$idsError[] = $id;
+			else
+				$idsSuccess[] = $id;
+
+			$outputResult[] = $result;
+		}
+
+		$this->terminateWithSuccess([$outputResult, $idsSuccess, $idsError]);
+	}
+
 	private function _setAuthUID()
 	{
 		$this->_uid = getAuthUID();
@@ -311,4 +412,4 @@ class Tag_Controller extends FHCAPI_Controller
 		));
 	}

-}
+}
@@ -0,0 +1,188 @@
+<?php
+
+if (!defined('BASEPATH')) exit('No direct script access allowed');
+
+/**
+ * Helper function to generate the default documentslist config for the
+ * grades tab.
+ *
+ * The resulting array consists of elements which are associative arrays
+ * that can have the following entries:
+ * title			(required) on the first level this can be HTML code.
+ * permissioncheck	(optional) an URL to an FHCAPI endpoint which returns
+ * 						true or false.
+ * link				(optional) an URL that will be called if "action" and
+ * 						"children" are not defined.
+ * action			(optional) an associative array that describes an
+ * 						POST action that will be called if "children" is
+ * 						not defined.
+ * 						It can have the following entries:
+ * - url			(required) an URL to an FHCAPI endpoint.
+ * - post			(optional) an associative array with the POST data to
+ * 						be sent.
+ * - response		(optional) a string that will be displayed on success.
+ * children			(optional) an array of child elements
+ *
+ * All strings that start with { and end with } in the URLs and the
+ * actions post parameter will be replaced with the corresponding
+ * attribute of the current dataset (e.G: {uid} will be replaced with the
+ * uid of the current dataset)
+ *
+ * @return array
+ */
+function gradesDocumentsList()
+{
+	$ci =& get_instance();
+	$ci->load->library('PhrasesLib', array('stv'), 'p');
+
+	$permissioncheck = site_url("api/frontend/v1/documents/permissionAlternativeFormat/{studiengang_kz}");
+
+	$title_ger = $ci->p->t("global", "deutsch");
+	$title_eng = $ci->p->t("global", "englisch");
+	$title_ff = $ci->p->t("stv", "document_certificate");
+	$title_lv = $ci->p->t("stv", "document_coursecertificate");
+
+	$link_ff = "documents/export/" .
+		"zertifikat.rdf.php/" .
+		"Zertifikat" .
+		"?stg_kz={studiengang_kz_lv}" .
+		"&uid={uid}" .
+		"&ss={studiensemester_kurzbz}" .
+		"&lvid={lehrveranstaltung_id}";
+	$link_lv_ger = "documents/export/" .
+		"lehrveranstaltungszeugnis.rdf.php/" .
+		"LVZeugnis" .
+		"?stg_kz={studiengang_kz}" .
+		"&uid={uid}" .
+		"&ss={studiensemester_kurzbz}" .
+		"&lvid={lehrveranstaltung_id}";
+	$link_lv_eng = "documents/export/" .
+		"lehrveranstaltungszeugnis.rdf.php/" .
+		"LVZeugnisEng" .
+		"?stg_kz={studiengang_kz}" .
+		"&uid={uid}" .
+		"&ss={studiensemester_kurzbz}" .
+		"&lvid={lehrveranstaltung_id}";
+
+	$archive_url = "api/frontend/v1/documents/archiveSigned";
+	$archive_response = $ci->p->t("stv", "document_signed_and_archived");
+	$archive_post_ff = [
+		"xml" => "zertifikat.rdf.php",
+		"xsl" => "Zertifikat",
+		"stg_kz" => "{studiengang_kz_lv}",
+		"uid" => "{uid}",
+		"ss" => "{studiensemester_kurzbz}",
+		"lvid" => "{lehrveranstaltung_id}"
+	];
+	$archive_post_lv_ger = [
+		"xml" => "lehrveranstaltungszeugnis.rdf.php",
+		"xsl" => "LVZeugnis",
+		"stg_kz" => "{studiengang_kz}",
+		"uid" => "{uid}",
+		"ss" => "{studiensemester_kurzbz}",
+		"lvid" => "{lehrveranstaltung_id}"
+	];
+	$archive_post_lv_eng = [
+		"xml" => "lehrveranstaltungszeugnis.rdf.php",
+		"xsl" => "LVZeugnisEng",
+		"stg_kz" => "{studiengang_kz}",
+		"uid" => "{uid}",
+		"ss" => "{studiensemester_kurzbz}",
+		"lvid" => "{lehrveranstaltung_id}"
+	];
+
+	$list = [
+		[
+			'title' => '<i class="fa fa-download" title="' . $ci->p->t("stv", "document_download") . '"></i>',
+			'children' => [
+				[
+					'title' => $title_ff,
+					'link' => site_url($link_ff)
+				],
+				[
+					'title' => $title_lv,
+					'children' => [
+						[
+							'title' => $title_ger,
+							'link' => site_url($link_lv_ger),
+							'children' => [
+								[
+									'title' => 'PDF',
+									'permissioncheck' => $permissioncheck,
+									'link' => site_url($link_lv_ger)
+								],
+								[
+									'title' => 'DOC',
+									'permissioncheck' => $permissioncheck,
+									'link' => site_url($link_lv_ger . "&output=doc")
+								],
+								[
+									'title' => 'ODT',
+									'permissioncheck' => $permissioncheck,
+									'link' => site_url($link_lv_ger . "&output=odt")
+								]
+							]
+						],
+						[
+							'title' => $title_eng,
+							'link' => site_url($link_lv_eng),
+							'children' => [
+								[
+									'title' => 'PDF',
+									'permissioncheck' => $permissioncheck,
+									'link' => site_url($link_lv_eng)
+								],
+								[
+									'title' => 'DOC',
+									'permissioncheck' => $permissioncheck,
+									'link' => site_url($link_lv_eng . "&output=doc")
+								],
+								[
+									'title' => 'ODT',
+									'permissioncheck' => $permissioncheck,
+									'link' => site_url($link_lv_eng . "&output=odt")
+								]
+							]
+						]
+					]
+				]
+			]
+		],
+		[
+			'title' => '<i class="fas fa-archive" title="' . $ci->p->t("stv", "document_archive") . '"></i>',
+			'children' => [
+				[
+					'title' => $title_ff,
+					'action' => [
+						'url' => site_url($archive_url),
+						'post' => $archive_post_ff,
+						'response' => $archive_response
+					]
+				],
+				[
+					'title' => $title_lv,
+					'children' => [
+						[
+							'title' => $title_ger,
+							'action' => [
+								'url' => site_url($archive_url),
+								'post' => $archive_post_lv_ger,
+								'response' => $archive_response
+							]
+						],
+						[
+							'title' => $title_eng,
+							'action' => [
+								'url' => site_url($archive_url),
+								'post' => $archive_post_lv_eng,
+								'response' => $archive_response
+							]
+						]
+					]
+				]
+			]
+		]
+	];
+
+	return $list;
+}
@@ -111,7 +111,8 @@ function generateJSDataStorageObject($indexPage, $calledPath, $calledMethod)
 		'theme' => [
 			'name'=>$ci->config->item('theme_name'),
 			'modes'=>$ci->config->item('theme_modes'),
-		]
+		],
+		'domain' => DOMAIN
 	);

 	$toPrint = "\n";
@@ -270,6 +271,28 @@ function absoluteJsImportUrl($relurl)
 	return $url;
 }

+/*
+ * Generate Css File Include if Extension contains file
+ *
+ * @param $relativeFilePath path relative to Extension public/css dir
+ */
+function generateCSSsIncludeIfExtensionCssExists($relativeFilePath)
+{
+	$fsiterator = new FilesystemIterator(FHCPATH . 'application/extensions');
+	foreach ($fsiterator as $fsitem)
+	{
+		if(preg_match('/^FHC-Core-/', $fsitem->getBasename()))
+		{
+			$extensionfile = 'public/extensions/' . $fsitem->getBasename() 
+				. '/css/' . $relativeFilePath;
+			if(is_readable(FHCPATH . $extensionfile))
+			{
+				generateCSSsInclude($extensionfile);
+			}
+		}
+	}
+}
+
 /*
 * Manipulate CI views includes Array to load
 *   - public/js/FhcApps.js via customJSs and
@@ -17,7 +17,12 @@ class LektorLib
 		$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->model('ressource/Zeitsperre_model', 'ZeitsperreModel');
+		$this->_ci->load->model('ressource/Reservierung_model', 'ReservierungModel');
+		$this->_ci->load->model('ressource/stundenplandev_model', 'StundenplandevModel');
+
 		$this->_ci->load->library('PhrasesLib', array('lehre'));
+		$this->_ci->load->library('VariableLib', ['uid' => getAuthUID()]);
 	}

 	public function addLektorToLehreinheit($lehreinheit_id, $mitarbeiter_uid)
@@ -78,10 +83,13 @@ class LektorLib

 	public function updateLektorFromLehreinheit($lehreinheit_id, $mitarbeiter_uid, $new_data)
 	{
+		$old_uid = $mitarbeiter_uid;
+		$new_uid = isset($new_data['mitarbeiter_uid']) ? $new_data['mitarbeiter_uid'] : $mitarbeiter_uid;
+
 		$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));
+		$lehreinheit_result = $this->_ci->LehreinheitmitarbeiterModel->loadWhere(array('lehreinheit_id' => $lehreinheit_id, 'mitarbeiter_uid' => $old_uid));

 		if (isError($lehreinheit_result)) return $lehreinheit_result;

@@ -89,27 +97,47 @@ class LektorLib

 		$lehreinheit = getData($lehreinheit_result)[0];

+		$semesterstunden_alt = $lehreinheit->semesterstunden;
+		$semesterstunden_neu = isset($new_data['semesterstunden']) ? $new_data['semesterstunden'] : $semesterstunden_alt;
+		$bismelden_neu = isset($new_data['bismelden']) ? $new_data['bismelden'] : $lehreinheit->bismelden;
+		$neue_stunden_eingerechnet = (bool)$bismelden_neu;
+		$alte_stunden_eingerechnet = (bool)$lehreinheit->bismelden;
+		$stundenplan_update = false;

-		//TODO kollision check, wird vorerst nicht implementiert -> nur über das FAS möglich
-		if (isset($new_data['mitarbeiter_uid']) && $new_data['mitarbeiter_uid'] !== $mitarbeiter_uid)
+		if ($old_uid !== $new_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));
+			$lehreinheit_data = $this->_ci->LehreinheitmitarbeiterModel->loadWhere(array('mitarbeiter_uid' => $new_uid, 'lehreinheit_id' => $lehreinheit_id));

 			if (hasData($lehreinheit_data))
 				return error($this->_ci->phraseslib->t("lehre", "bereitzugeteilt"));

+			$this->_ci->StundenplandevModel->addGroupBy('stundenplandev_id');
+			$this->_ci->StundenplandevModel->addGroupBy('mitarbeiter_uid');
+			$verplant = $this->_ci->StundenplandevModel->loadWhere(array('lehreinheit_id' => $lehreinheit_id, 'mitarbeiter_uid' => $old_uid));
+
+			if (hasData($verplant))
+			{
+				$kollision = $this->hasKollision(getData($verplant), $new_uid);
+
+				$ignore_kollision = $this->_ci->variablelib->getVar('ignore_kollision');
+
+				if ($kollision === false || $ignore_kollision == 'true')
+				{
+					$stundenplan_update = true;
+				}
+				else if (is_array($kollision))
+				{
+					return error( "Änderung fehlgeschlagen! Die Änderung des Lektors führt zu ".count($kollision)." Kollision(en) im LV-Plan. Deaktivieren Sie die Kollisionspruefung oder wenden Sie sich an die LV-Planung!\n zB. $kollision[0]");
+				}
+				else
+				{
+					return error($kollision);
+				}
+			}
 		}
+
 		$warning = '';
-		if (isset($new_data['semesterstunden']))
+		if (($semesterstunden_neu !== '' && $semesterstunden_alt !== '') && (($semesterstunden_neu > $semesterstunden_alt) || $neue_stunden_eingerechnet))
 		{
 			$studiengang_result = $this->_ci->StudiengangModel->loadWhere(array('studiengang_kz' => $lehreinheit->studiengang_kz));
 			if (isError($studiengang_result)) return $studiengang_result;
@@ -120,7 +148,7 @@ class LektorLib
 			if (isError($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_result = $this->_ci->DienstverhaeltnisModel->existsDienstverhaeltnis($new_uid, $studiensemester->start, $studiensemester->ende, 'echterdv');

 			$echter_dv = false;

@@ -129,83 +157,81 @@ class LektorLib
 				$echter_dv = true;
 			}

-			$neue_stunden_eingerechnet = isset($new_data['bismelden']) ? $new_data['bismelden'] : $lehreinheit->bismelden;
-			$alte_stunden_eingerechnet = $lehreinheit->bismelden;
+			$stundengrenze_result = $this->_ci->OrganisationseinheitModel->getStundengrenze($studiengang->oe_kurzbz, $echter_dv);
+			if (isError($stundengrenze_result)) return $stundengrenze_result;

-			if (($new_data['semesterstunden'] > $lehreinheit->semesterstunden) || $neue_stunden_eingerechnet)
+			$stundengrenze = getData($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();
+
+			$semesterstunden_alt_sql = is_null($semesterstunden_alt) ? 0 : $semesterstunden_alt;
+			$semesterstunden_neu_sql = is_null($semesterstunden_neu) ? 0 : $semesterstunden_neu;
+
+			if ($alte_stunden_eingerechnet && $neue_stunden_eingerechnet)
+				$this->_ci->LehreinheitmitarbeiterModel->addSelect("(SUM(tbl_lehreinheitmitarbeiter.semesterstunden) - ($semesterstunden_alt_sql) + {$this->_ci->LehreinheitmitarbeiterModel->db->escape($semesterstunden_neu_sql)}) as summe");
+			else if ($alte_stunden_eingerechnet && !$neue_stunden_eingerechnet)
+				$this->_ci->LehreinheitmitarbeiterModel->addSelect("(SUM(tbl_lehreinheitmitarbeiter.semesterstunden) - ($semesterstunden_alt_sql)) as summe");
+			else if (!$alte_stunden_eingerechnet && $neue_stunden_eingerechnet)
+				$this->_ci->LehreinheitmitarbeiterModel->addSelect("(SUM(tbl_lehreinheitmitarbeiter.semesterstunden) + ({$this->_ci->LehreinheitmitarbeiterModel->db->escape($semesterstunden_neu_sql)})) as summe");
+			else if (!$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', $new_uid);
+			$this->_ci->LehreinheitmitarbeiterModel->db->where('studiensemester_kurzbz', $lehreinheit->studiensemester_kurzbz);
+			$this->_ci->LehreinheitmitarbeiterModel->db->where('bismelden', true);
+			$this->_ci->LehreinheitmitarbeiterModel->db->where('lower(mitarbeiter_uid) NOT LIKE', '_dummy%');
+
+			if (count($oe_array) > 0)
 			{
-				$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);
+			}

-				if(defined('FAS_LV_LEKTORINNENZUTEILUNG_STUNDEN_IGNORE_OE')
-					&& is_array(FAS_LV_LEKTORINNENZUTEILUNG_STUNDEN_IGNORE_OE)
-					&& count(FAS_LV_LEKTORINNENZUTEILUNG_STUNDEN_IGNORE_OE) > 0)
+			$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')))
 				{
-					$this->_ci->LehreinheitmitarbeiterModel->db->where_not_in('tbl_studiengang.oe_kurzbz', FAS_LV_LEKTORINNENZUTEILUNG_STUNDEN_IGNORE_OE);
+					if (!$this->LehrauftragAufFirma($new_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";
 				}

-				$summe_result = $this->_ci->LehreinheitmitarbeiterModel->load();
+				$stunden_limit_result = $this->getStundenInstitut($new_uid, $lehreinheit->studiensemester_kurzbz, $oe_array);

-				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 > $stundengrenze->stunden)
+				if (hasData($stunden_limit_result))
 				{
-
-					if (!$echter_dv && (!$this->_ci->permissionlib->isBerechtigt('admin')))
+					$stunden_limit_array = getData($stunden_limit_result);
+					foreach ($stunden_limit_array as $stunden_limit)
 					{
-						if (!$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";
-						}
+						$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));
+		$benutzer_result = $this->_ci->BenutzerModel->load(array($new_uid));

 		if (isError($benutzer_result)) return $benutzer_result;

@@ -227,12 +253,23 @@ class LektorLib
 			'bismelden'
 		);

+		$nullable_fields = array('stundensatz', 'semesterstunden', 'planstunden');
+
 		$updateData = array();
 		foreach ($updatableFields as $field)
 		{
-			$value = isset($new_data[$field]) ? $new_data[$field] : null;
+			if (!array_key_exists($field, $new_data))
+			{
+				continue;
+			}

-			if ($value !== null)
+			$value = $new_data[$field];
+
+			if (in_array($field, $nullable_fields))
+			{
+				$updateData[$field] = $value;
+			}
+			elseif ($value !== null)
 			{
 				$updateData[$field] = $value;
 			}
@@ -240,10 +277,24 @@ class LektorLib
 		$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);
+		$result = $this->_ci->LehreinheitmitarbeiterModel->update(array('lehreinheit_id' => $lehreinheit_id, 'mitarbeiter_uid' => $old_uid), $updateData);

 		if (isError($result)) return $result;

+		if ($stundenplan_update)
+		{
+			$update_result = $this->_ci->StundenplandevModel->update([
+				'lehreinheit_id' => $lehreinheit_id,
+				'mitarbeiter_uid' => $old_uid,
+			], [
+				'mitarbeiter_uid' => $new_uid,
+				'updateamum' => date('Y-m-d H:i:s'),
+				'updatevon' => getAuthUID()
+			]);
+
+			if (isError($update_result)) return $update_result;
+		}
+
 		if ($warning !== '') return success(['warning' => $warning]);

 		return success('Erfolgreich geupdated');
@@ -347,4 +398,52 @@ class LektorLib
 		$this->_ci->LehreinheitmitarbeiterModel->addGroupBy('tbl_studiengang.bezeichnung');
 		return $this->_ci->LehreinheitmitarbeiterModel->load();
 	}
+
+	private function hasKollision($stunden, $mitarbeiter)
+	{
+		$kollision = array();
+
+		$ignore_zeitsperre = $this->_ci->variablelib->getVar('ignore_zeitsperre');
+		$ignore_reservierung = $this->_ci->variablelib->getVar('ignore_reservierung');
+
+		foreach ($stunden as $stunde)
+		{
+			$stundenplan_result = $this->_ci->StundenplandevModel->lektorHasStundenplandevEintrag($mitarbeiter, $stunde->datum, $stunde->stunde);
+
+			if (isError($stundenplan_result))
+				return $stundenplan_result;
+
+			if (hasData($stundenplan_result))
+			{
+				$stundenplan_result = getData($stundenplan_result)[0];
+				$kollision[] = "Kollision stundenplandev: $stundenplan_result->stundenplandev_id|$stundenplan_result->lektor|$stundenplan_result->ort_kurzbz|$stundenplan_result->stg_kurzbz-$stundenplan_result->semester$stundenplan_result->verband$stundenplan_result->gruppe$stundenplan_result->gruppe_kurzbz - $stundenplan_result->datum/$stundenplan_result->stunde";
+			}
+			else
+			{
+				if ($ignore_zeitsperre == 'false' && (!defined('KOLLISIONSFREIE_USER') || !in_array($mitarbeiter, unserialize(KOLLISIONSFREIE_USER))))
+				{
+					$zeitsperre_result = $this->_ci->ZeitsperreModel->checkIfZeitsperreExists($mitarbeiter, $stunde->datum, $stunde->stunde);
+
+					if (hasData($zeitsperre_result))
+					{
+						$zeitsperre_result = getData($zeitsperre_result)[0];
+						$kollision[] = "Kollision (Zeitsperre): $zeitsperre_result->zeitsperre_id|$zeitsperre_result->mitarbeiter_uid|$zeitsperre_result->zeitsperretyp_kurzbz - $zeitsperre_result->vondatum/$zeitsperre_result->vonstunde|$zeitsperre_result->bisdatum/$zeitsperre_result->bisstunde";
+					}
+				}
+
+				if ($ignore_reservierung == 'false' && (!defined('KOLLISIONSFREIE_USER') || !in_array($mitarbeiter, unserialize(KOLLISIONSFREIE_USER))))
+				{
+					$reservierung_result = $this->_ci->ReservierungModel->lektorHasReservierung($mitarbeiter, $stunde->datum, $stunde->stunde);
+
+					if (hasData($reservierung_result))
+					{
+						$reservierung_result = getData($reservierung_result)[0];
+						$kollision[] = "Kollision (Reservierung): $reservierung_result->reservierung_id|$reservierung_result->uid|$reservierung_result->ort_kurzbz|$reservierung_result->stg_kurzbz-$reservierung_result->semester$reservierung_result->verband$reservierung_result->gruppe$reservierung_result->gruppe_kurzbz - $reservierung_result->datum/$reservierung_result->stunde";
+					}
+				}
+			}
+		}
+
+		return isEmptyArray($kollision) ? false : $kollision;
+	}
 }
@@ -80,10 +80,12 @@ class StundenplanLib
 		if (isError($semester_range))
 			return $semester_range;
 		$semester_range = getData($semester_range);
+		$this->_ci->addMeta('semester_range', $semester_range);

 		$this->sortStudienSemester($semester_range);

 		$function_error = $this->applyLoadUeberSemesterHaelfte($semester_range);
+		$this->_ci->addMeta('nach_apply_semester_range', $semester_range);
 		if ($function_error)
 			return $function_error;
 		
@@ -92,13 +94,13 @@ class StundenplanLib
 		if (isError($benutzer_gruppen))
 			return $benutzer_gruppen;
 		$benutzer_gruppen = getData($benutzer_gruppen);
-
+		$this->_ci->addMeta('spezialgruppen', $benutzer_gruppen);
 		// getting the student_lehrverbaende of the student in the different studiensemester
 		$student_lehrverband = $this->fetchStudentlehrverbandFromStudiensemester($student_uid, $semester_range);
 		if (isError($student_lehrverband))
 			return $student_lehrverband;
 		$student_lehrverband = getData($student_lehrverband);
-		
+		$this->_ci->addMeta('studentlehrvebaende', $student_lehrverband);
 		$stundenplan_query = $this->_ci->StundenplanModel->getStundenplanQuery(
 			$start,
 			$end,
@@ -184,6 +186,21 @@ class StundenplanLib
 		return success($stundenplan_data);
 	}

+	public function getEventsByLE($lehreinheit_id, $start, $end, $stundenplan)
+	{
+		$this->_ci =& get_instance();
+
+		$this->_ci->load->model('ressource/Stundenplan_model', 'StundenplanModel');
+		return $this->_ci->StundenplanModel->getStundenplanLE($lehreinheit_id, $start, $end, $stundenplan);
+	}
+
+	public function getEventsByLV($lehrveranstaltung_id, $start, $end, $stundenplan)
+	{
+		$this->_ci =& get_instance();
+
+		$this->_ci->load->model('ressource/Stundenplan_model', 'StundenplanModel');
+		return $this->_ci->StundenplanModel->getStundenplanLV($lehrveranstaltung_id, $start, $end, $stundenplan);
+	}
 	/**
 	 * Get stundenplan for a room
 	 *
@@ -615,6 +632,7 @@ class StundenplanLib
 						$result->semester = $item->semester;
 						$result->verband = $item->verband;
 						$result->gruppe = $item->gruppe;
+						$result->studiensemester_kurzbz = $item->studiensemester_kurzbz;
 						return $result;
 					},
 					$lehrverband_query_result);
@@ -784,7 +802,8 @@ class StundenplanLib
 		$this->_ci->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');

 		// gets all studiensemester from the student from start_date to end_date
-		$semester_range = $this->_ci->StudiensemesterModel->getByDateRange($start_date, $end_date);
+		//$semester_range = $this->_ci->StudiensemesterModel->getByDateRange($start_date, $end_date);
+		$semester_range = $this->_ci->StudiensemesterModel->getContainingOrNearestByDateRange($start_date, $end_date);
 		if (isError($semester_range))
 			return $semester_range;
 		
@@ -0,0 +1,392 @@
+<?php
+
+/**
+ * FH-Complete
+ *
+ * @package             FHC-Helper
+ * @author              FHC-Team
+ * @copyright           Copyright (c) 2026 fhcomplete.net
+ * @license             GPLv3
+ */
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+use \DateTime as DateTime;
+use \stdClass as stdClass;
+
+class TagLib
+{
+	/**
+	 * Object initialization
+	 */
+	public function __construct()
+	{
+		$this->_ci =& get_instance();
+
+		// Configs
+		$this->_ci->load->config('stv');
+
+		// Models
+		$this->_ci->load->model('person/Notiz_model', 'NotizModel');
+		$this->_ci->load->model('system/Notiztyp_model', 'NotiztypModel');
+		$this->_ci->load->model('person/Notizzuordnung_model', 'NotizzuordnungModel');
+		$this->_ci->load->model('crm/Prestudentstatus_model', 'PrestudentstatusModel');
+		$this->_ci->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+
+		// Libraries
+		$this->_ci->load->library('PermissionLib');
+		$this->_ci->load->library('PrestudentLib');
+
+		$this->batchUser = $this->_ci->config->item('userAutomatedTags');
+	}
+
+	public function updateAutomatedTags($paramsTag)
+	{
+		// ---------------------------------
+		// check params
+		// ---------------------------------
+		$required = ['kurzbz', 'data', 'typeId'];
+
+		foreach ($required as $key) {
+			if (!isset($paramsTag[$key])) {
+				return error('Missing Parameter: ' . $key);
+			}
+		}
+
+		$studiensemester_kurzbz = (isset ($paramsTag['studiensemester_kurzbz']) ? $paramsTag['studiensemester_kurzbz'] : null);
+		$tag = $paramsTag['kurzbz'];
+		$inputData = $paramsTag['data'];
+		$typeId = $paramsTag['typeId'];
+
+		// ---------------------------------
+		// prepare input
+		// ---------------------------------
+		$zeitraum = [];
+		$arrayIds = [];
+
+		foreach ($inputData as $item) {
+			$id = $item['id'];
+			$arrayIds[] = $id;
+
+			$zeitraum[$id] = [
+				'von' => $item['von'] ?? null,
+				'bis' => $item['bis'] ?? null
+			];
+		}
+		$arrayIds = array_unique($arrayIds);
+
+		$result = $this->_ci->StudiensemesterModel->load($studiensemester_kurzbz);
+		if (isError($result)) {
+			return $result;
+		}
+		$data = $result->retval[0] ?? null;
+
+		$von = $data->start ?? null;
+		$bis = $data->ende ?? null;
+
+		// ---------------------------------
+		// load existing tags
+		// ---------------------------------
+		$allTags = [];
+		$resultAllTags = $this->_ci->NotizModel->getAllTags($tag, $von, $bis);
+		if (isError($resultAllTags)) {
+			return $resultAllTags;
+		}
+		$allTagsData = getData($resultAllTags);
+
+		if (!empty($allTagsData)) {
+			foreach ($allTagsData as $item) {
+				$allTags[$item->$typeId] = $item->notiz_id;
+			}
+		}
+
+		// ---------------------------------
+		// map the data
+		// ---------------------------------
+		$toRecycle = [];
+		$toAdd = [];
+		$toDelete = [];
+
+		foreach ($arrayIds as $id) {
+			if (isset($allTags[$id])) {
+				$toRecycle[$id] = $allTags[$id];
+			} else {
+				$toAdd[] = $id;
+			}
+		}
+
+		foreach ($allTags as $id => $notizId) {
+			if (!in_array($id, $arrayIds)) {
+				$toDelete[$id] = $notizId;
+
+			}
+		}
+
+		// ---------------------------------
+		// recycle (update existing)
+		// ---------------------------------
+		$countRecycled = 0;
+		$retagged = [];
+
+		foreach ($toRecycle as $id => $notizId)
+		{
+			$this->_updateTag($notizId, $zeitraum[$id]['von'], $zeitraum[$id]['bis']);
+
+			$countRecycled++;
+			$retagged[] = $id;
+		}
+
+		// ---------------------------------
+		// ADD
+		// ---------------------------------
+		$countAdded = 0;
+		$tagged = [];
+
+		foreach ($toAdd as $id)
+		{
+			$this->_insertTag($typeId, $id, $tag, $zeitraum[$id]['von'], $zeitraum[$id]['bis']);
+			$countAdded++;
+
+			$tagged[] = $id;
+		}
+
+		// ---------------------------------
+		// delete
+		// ---------------------------------
+		$countDeleted = 0;
+		$deleted = [];
+
+		foreach ($toDelete as $id => $notizId)
+		{
+			$result = $this->_deleteTag($notizId);
+
+			if (isError($result)) {
+				return $result;
+			}
+
+			$countDeleted++;
+			$deleted[] = $id;
+		}
+
+		// ---------------------------------
+		// return
+		// ---------------------------------
+		return success([
+			'input' => [
+				'tag' => $tag,
+				'arrayIds' => $arrayIds
+			],
+			'summary' => [
+				'recycled' => $countRecycled,
+				'added' => $countAdded,
+				'deleted' => $countDeleted
+			],
+			'details' => [
+				'existingTags' => $allTags,
+				'toAdd' => $toAdd,
+				'toRecycle' => $toRecycle,
+				'toDelete' => $toDelete
+			],
+			'results' => [
+				'retaggedIds' => $retagged,
+				'newTags' => $tagged,
+				'deletedTagsIds' => $deleted
+			]
+		]);
+	}
+
+	public function updateAutomatedTagsForTypeId(array $params)
+	{
+		$return = null;
+		$notiz_id = null;
+
+		$von = $params['von'];
+		$bis = $params['bis'];
+		$tag = $params['kurzbz'];
+		$id = $params['id'];
+		$typeId = $params['typeId'];
+
+		$this->_ci->NotizModel->addSelect('nz.notiz_id');
+		$this->_ci->NotizModel->addSelect($typeId);
+		$this->_ci->NotizModel->addJoin('public.tbl_notizzuordnung nz', 'notiz_id');
+		$resultAllTags = $this->_ci->NotizModel->loadWhere([
+			'typ' => $tag,
+			$typeId => $id
+		]);
+		if(hasData($resultAllTags))
+		{
+			$notiz_id = $resultAllTags->retval[0]->notiz_id;
+		}
+
+		//RECYCLE
+		if ($notiz_id !== null)
+		{
+			$resultUpdateNotiz = $this->_updateTag($notiz_id, $von, $bis);
+			$return = ['recycled' => $resultUpdateNotiz];
+		}
+		else
+		//ADD
+		{
+			$resultInsertNotiz = $this->_insertTag($typeId, $id, $tag, $von, $bis);
+			$return = ['added' => $resultInsertNotiz];
+		}
+		return success($return);
+	}
+
+	/*
+	 * main function for rebuild Tags for typeId
+	 * */
+	public function rebuildTagsForTypeId($typeId, $id, $studiensemester_kurzbz)
+	{
+		$automatedTagsRes = $this->_ci->NotiztypModel->loadWhere(array('automatisiert' => true, 'taglib IS NOT NULL' => null));
+		$automatedTags = hasData($automatedTagsRes) ? getData($automatedTagsRes) : [];
+
+		$result = $this->_ci->StudiensemesterModel->load($studiensemester_kurzbz);
+		if (isError($result))
+			return error('Error occurred during retrieving studiensemester');
+		if (empty($result->retval) || !isset($result->retval[0])) {
+			return error('No studiensemester found');
+		}
+
+		$startSem = $result->retval[0]->start ?? null;
+		$endeSem = $result->retval[0]->ende ?? null;
+		$return = [];
+
+		foreach ($automatedTags as $autoTag)
+		{
+			// getPath: must not be lost
+			$filePath = APPPATH . 'libraries/' . $autoTag->taglib . '.php'; // APPPATH = application/
+
+			if (file_exists($filePath)) {
+				require_once($filePath);
+			} else {
+				echo "File not found: " . $filePath;
+				continue;
+			}
+
+			$className = basename($autoTag->taglib);
+			$kurz_bz = $autoTag->typ_kurzbz;
+
+			$obj = new $className();
+
+			$criteriaIsSet = $obj->isCriteriaSetFor([
+				'typeId' => $typeId,
+				'id' => $id,
+				'studiensemester_kurzbz' => $studiensemester_kurzbz
+			]);
+
+			if (hasData($criteriaIsSet))
+			{
+				$von = isset($criteriaIsSet->retval[0]->von) ? $criteriaIsSet->retval[0]->von : '';
+				$bis = isset($criteriaIsSet->retval[0]->bis) ? $criteriaIsSet->retval[0]->bis : '';
+
+				$params = [
+					'von' => $von,
+					'bis' => $bis,
+					'kurzbz' => $autoTag->typ_kurzbz,
+					'typeId' => $typeId,
+					'id' => $id,
+				];
+
+				$result = $this->updateAutomatedTagsForTypeId($params);
+				if (isError($result))
+					return error('Error occurred during updateAutomatedTags' . $kurz_bz);
+
+				$return[$kurz_bz] = $result;
+			}
+			else
+			{
+				//CHECK FOR DELETE
+				$params = [
+						'von' => $startSem,
+						'bis' => $endeSem,
+						'kurzbz' => $autoTag->typ_kurzbz,
+						'typeId' => $typeId,
+						'id' => $id,
+					];
+				$result = $this->_ci->NotizModel->checkIfExistingTag($kurz_bz, $typeId, $id, $startSem, $endeSem);
+				if (hasData($result))
+				{
+					$notizId = $result->retval[0]->notiz_id;
+					$this->_deleteTag($notizId);
+					$return[$kurz_bz] = ['deleted' => $notizId];
+				}
+			}
+		}
+		return success($return);
+	}
+
+	private function _insertTag($typeId, $id, $tag, $von, $bis)
+	{
+		$resultInsert = $this->_ci->NotizModel->insert([
+			'titel' => 'TAG',
+			'text' => 'AUTOMATED TAG',
+			'verfasser_uid' => $this->batchUser,
+			'erledigt' => false,
+			'insertamum' => date('Y-m-d H:i:s'),
+			'insertvon' => 'BatchJobTagAdd',
+			'typ' => $tag,
+			'start' => $von,
+			'ende' => $bis
+		]);
+
+		if (isError($resultInsert)) {
+			return error('Error inserting tag for ' .  $typeId . ': ' . $id);
+		}
+
+		$notizId = $resultInsert->retval;
+
+		$resultZuordnung = $this->_ci->NotizzuordnungModel->insert([
+			'notiz_id' => $notizId,
+			$typeId => $id
+		]);
+
+		if (isError($resultZuordnung)) {
+			return error('Error inserting relation for ' .  $typeId . ': ' . $id);
+		}
+
+		return $notizId;
+	}
+
+	private function _updateTag($notiz_id, $von, $bis)
+	{
+		$resultUpdateNotiz = $this->_ci->NotizModel->update(
+			[
+				'notiz_id' => $notiz_id
+			],
+			array(
+				'updateamum' => date('Y-m-d H:i:s'),
+				'updatevon' => 'BatchJobTagUpdate',
+				'start' => $von,
+				'ende' => $bis
+			));
+
+
+		if (isError($resultUpdateNotiz))
+			return error ('Error occurred during Update ' . $notiz_id);
+
+		return $notiz_id;
+	}
+
+	private function _deleteTag($notiz_id)
+	{
+		$result = $this->_ci->NotizzuordnungModel->delete([
+			'notiz_id' => $notiz_id
+		]);
+		if (isError($result)) {
+			return error('Error occurred during delete Notizzuordnung ' . $notiz_id);
+		}
+
+		$result = $this->_ci->NotizModel->delete([
+			'notiz_id' => $notiz_id
+		]);
+		if (isError($result)) {
+			return error('Error occurred during delete Notiz ' . $notiz_id);
+		}
+
+		return success([
+			'deleted' => $notiz_id
+		]);
+	}
+
+}
@@ -28,6 +28,7 @@ class StudentListLib
 	private $_allowedStgs = [];
 	private $_selects = [];
 	private $_joins = [];
+	private $_wheres = [];
 	
 	/**
 	 * Gets the CI instance, loads model and prepares default values
@@ -40,6 +41,8 @@ class StudentListLib
 	{
 		$this->_ci =& get_instance(); // get code igniter instance

+		$this->_ci->load->config('stv');
+
 		$this->_ci->load->model('crm/Prestudent_model', 'PrestudentModel');

 		if (isset($params['allowedStgs']))
@@ -47,8 +50,6 @@ class StudentListLib

 		// Add default SELECTs
 		$this->addSelect("b.uid");
-		if (defined('STV_TAGS_ENABLED') && STV_TAGS_ENABLED)
-			$this->addSelect('tag_data_agg.tags');
 		$this->addSelect('titelpre');
 		$this->addSelect('nachname');
 		$this->addSelect('vorname');
@@ -72,6 +73,13 @@ class StudentListLib
 		$this->addSelect('pls.status_kurzbz AS status');
 		$this->addSelect('pls.datum AS status_datum');
 		$this->addSelect('pls.bestaetigtam AS status_bestaetigung');
+		$this->addSelect("
+			CASE
+				WHEN pls.status_kurzbz IN ('Interessent','Aufgenommener','Bewerber','Wartender')
+				THEN pls.ausbildungssemester
+				ELSE v.semester
+			END AS semester_berechnet
+		");
 		$this->addSelect(
 			"(SELECT kontakt FROM public.tbl_kontakt WHERE kontakttyp='email' AND person_id=p.person_id AND zustellung LIMIT 1) AS mail_privat",
 			false
@@ -111,7 +119,7 @@ class StudentListLib
 			) prest
 			WHERE laststatus NOT IN ('Abbrecher', 'Abgewiesener', 'Absolvent')
 			AND priorisierung <= tbl_prestudent.priorisierung
-		) || ' (' || COALESCE(tbl_prestudent.priorisierung::text, ' '::text) || ')' AS priorisierung_relativ", false); // TODO(chris): overwrite in fetchStudents
+		) || ' (' || COALESCE(tbl_prestudent.priorisierung::text, ' '::text) || ')' AS priorisierung_relativ", false);
 		$this->addSelect('mentor');
 		$this->addSelect('b.aktiv AS bnaktiv');
 		$this->addSelect('unruly');
@@ -119,7 +127,7 @@ class StudentListLib
 		// Add default JOINs
 		$this->addJoin('public.tbl_studiengang stg', 'studiengang_kz', 'LEFT');
 		$this->addJoin('public.tbl_person p', 'person_id');
-		$this->addJoin('public.tbl_student s', 'prestudent_id', 'LEFT'); // TODO(chris): overwrite in fetchStudents
+		$this->addJoin('public.tbl_student s', 'prestudent_id', 'LEFT');
 		$this->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 
@@ -129,40 +137,14 @@ class StudentListLib
 		$this->addJoin('public.tbl_benutzer b', 's.student_uid=b.uid', 'LEFT');
 		$this->addJoin("v", "", ""); // Will be replaced later
 		$this->addJoin("ps", "", ""); // Will be replaced later
-		if (defined('STV_TAGS_ENABLED') && STV_TAGS_ENABLED) {
-			$this->_ci->load->config('stv');
-			$tags = $this->_ci->config->item('stv_prestudent_tags');

-			$whereTags = '';
-			if (is_array($tags) && !isEmptyArray($tags)) {
-				$tags = array_keys($tags);
-
-				foreach ($tags as $key => $tag) {
-					$tags[$key] = $this->_ci->PrestudentModel->escape($tag);
-				}
-				$whereTags = " AND nt.typ_kurzbz IN (" . implode(",", $tags) . ")";
-			}
-			$subQueryTag = "(
-				SELECT
-					tag.prestudent_id,
-					COALESCE(json_agg(tag ORDER BY tag.done), '[]'::json) AS tags
-				FROM (
-					SELECT DISTINCT ON (n.notiz_id)
-						n.notiz_id AS id,
-						nt.typ_kurzbz,
-						array_to_json(nt.bezeichnung_mehrsprachig)->>0 AS beschreibung,
-						n.text AS notiz,
-						nt.style,
-						n.erledigt AS done,
-						nz.prestudent_id
-					FROM public.tbl_notizzuordnung AS nz
-					JOIN public.tbl_notiz AS n ON nz.notiz_id = n.notiz_id
-					JOIN public.tbl_notiz_typ AS nt ON n.typ = nt.typ_kurzbz " . $whereTags . "
-				) AS tag
-				GROUP BY tag.prestudent_id
-			) AS tag_data_agg";
-
-			$this->addJoin($subQueryTag, 'tag_data_agg.prestudent_id = tbl_prestudent.prestudent_id', 'LEFT');
+		// Add SELECTs and JOINs from config
+		$config = $this->_ci->config->item('list_columns') ?: [];
+		foreach ($config as $conf) {
+			$this->addSelect($conf['default']);
+			if (isset($conf['joins']))
+				foreach ($conf['joins'] as $join)
+					call_user_func_array([$this, 'addJoin'], $join);
 		}
 	}

@@ -249,11 +231,7 @@ class StudentListLib
 	 */
 	public function addWhere($key, $value = null, $escape = true)
 	{
-		if (!is_array($key) && is_array($value)) {
-			$this->_ci->PrestudentModel->db->where_in($key, $value, $escape);
-		} else {
-			$this->_ci->PrestudentModel->db->where($key, $value, $escape);
-		}
+		$this->_wheres[] = [$key, $value, $escape, false];
 	}

 	/**
@@ -267,11 +245,7 @@ class StudentListLib
 	 */
 	public function addOrWhere($key, $value = null, $escape = true)
 	{
-		if (!is_array($key) && is_array($value)) {
-			$this->_ci->PrestudentModel->db->or_where_in($key, $value, $escape);
-		} else {
-			$this->_ci->PrestudentModel->db->or_where($key, $value, $escape);
-		}
+		$this->_wheres[] = [$key, $value, $escape, true];
 	}

 	/**
@@ -283,8 +257,9 @@ class StudentListLib
 	 */
 	public function execute($studiensemester_kurzbz)
 	{
-		$stdsemEsc = $studiensemester_kurzbz ? $this->_ci->PrestudentModel->escape($studiensemester_kurzbz) : 'NULL';
+		$this->addSelectAndJoinForTagsIfConfigured($studiensemester_kurzbz);

+		$stdsemEsc = $studiensemester_kurzbz ? $this->_ci->PrestudentModel->escape($studiensemester_kurzbz) : 'NULL';

 		$this->addSelect(
 			"public.get_rolle_prestudent(
@@ -315,6 +290,20 @@ class StudentListLib
 		foreach ($this->_selects as $select)
 			$this->_ci->PrestudentModel->addSelect($select[0], $select[1]);

+		foreach ($this->_wheres as $where) {
+			if (!is_array($where[0]) && is_array($where[1])) {
+				if ($where[3])
+					$this->_ci->PrestudentModel->db->or_where_in($where[0], $where[1], $where[2]);
+				else
+					$this->_ci->PrestudentModel->db->where_in($where[0], $where[1], $where[2]);
+			} else {
+				if ($where[3])
+					$this->_ci->PrestudentModel->db->or_where($where[0], $where[1], $where[2]);
+				else
+					$this->_ci->PrestudentModel->db->where($where[0], $where[1], $where[2]);
+			}
+		}
+
 		$this->_ci->PrestudentModel->addOrder('nachname');
 		$this->_ci->PrestudentModel->addOrder('vorname');

@@ -325,6 +314,78 @@ class StudentListLib
 	//------------------------------------------------------------------------------------------------------------------
 	// Protected methods

+	/**
+	 * Add Select and Join for Tags if configured
+	 *
+	 * @param string studiensemester_kurzbz
+	 *
+	 */
+	protected function addSelectAndJoinForTagsIfConfigured($studiensemester_kurzbz)
+	{
+		if (defined('STV_TAGS_ENABLED') && STV_TAGS_ENABLED) {
+			$this->_ci->load->config('stv');
+			$tags = $this->_ci->config->item('stv_prestudent_tags');
+
+			$whereTags = '';
+			if (is_array($tags) && !isEmptyArray($tags)) {
+				$tags = array_keys($tags);
+
+				foreach ($tags as $key => $tag) {
+					$tags[$key] = $this->_ci->PrestudentModel->escape($tag);
+				}
+				$whereTags = " AND nt.typ_kurzbz IN (" . implode(",", $tags) . ")";
+			}
+			$studiensemester_kurzbz_escaped = $this->_ci->PrestudentModel->escape($studiensemester_kurzbz);
+			$subQueryTag = "(
+				SELECT
+					tag.prestudent_id,
+					COALESCE(json_agg(tag ORDER BY tag.done, tag.prioritaet), '[]'::json) AS tags
+				FROM (
+					SELECT DISTINCT ON (n.notiz_id)
+						n.notiz_id AS id,
+						nt.typ_kurzbz,
+						nt.bezeichnung_mehrsprachig[(
+							SELECT index
+							FROM tbl_sprache
+							WHERE sprache=" . $this->_ci->PrestudentModel->escape(getUserLanguage()) . "
+						)] AS beschreibung,
+						n.text AS notiz,
+						nt.style,
+						n.erledigt AS done,
+						nt.prioritaet AS prioritaet,
+						nt.automatisiert AS automatisiert,
+						nz.prestudent_id,
+						n.start,
+						n.ende
+					FROM public.tbl_notizzuordnung AS nz
+					JOIN public.tbl_notiz AS n ON nz.notiz_id = n.notiz_id AND nz.prestudent_id IS NOT NULL
+					JOIN public.tbl_notiz_typ AS nt ON n.typ = nt.typ_kurzbz " . $whereTags . "
+				WHERE
+				  COALESCE(n.start, '1970-01-01') <= (
+					SELECT
+					  ende
+					FROM
+					  public.tbl_studiensemester
+					WHERE
+					  studiensemester_kurzbz = " . $studiensemester_kurzbz_escaped . "
+				  )
+				  AND COALESCE(n.ende, '2170-12-31') >= (
+					SELECT
+					  start
+					FROM
+					  public.tbl_studiensemester
+					WHERE
+					  studiensemester_kurzbz = " . $studiensemester_kurzbz_escaped . "
+				  )
+				) AS tag
+				GROUP BY tag.prestudent_id
+			) AS tag_data_agg";
+
+			$this->addSelect('tag_data_agg.tags');
+			$this->addJoin($subQueryTag, 'tag_data_agg.prestudent_id = tbl_prestudent.prestudent_id', 'LEFT');
+		}
+	}
+
 	/**
 	 * Get alias of a table or select statement
 	 *
@@ -0,0 +1,81 @@
+<?php
+/**
+ * Description of dd_auto
+ *
+ * @author ma0068
+ */
+class CoreDoubleDegreeTagLib
+{
+	protected $ci;
+
+	public function __construct()
+	{
+		$this->ci = get_instance();
+		$this->ci->load->model('codex/Mobilitaet_model', 'MobilitaetModel');
+	}
+
+	public function getZuordnungIds(array $params)
+	{
+		if(!isset($params['studiensemester_kurzbz']))
+		{
+			return (object) array(
+				'idArray' => []
+			);
+		}
+
+		$semester = $params['studiensemester_kurzbz'];
+
+		$this->ci->MobilitaetModel->addJoin('bis.tbl_gsprogramm', 'gsprogramm_id');
+		$this->ci->MobilitaetModel->addJoin('public.tbl_studiensemester', 'studiensemester_kurzbz');
+
+		$result = $this->ci->MobilitaetModel-> loadWhere(array(
+			'gsprogrammtyp_kurzbz' => 'Double',
+			'studiensemester_kurzbz' => $semester
+		));
+		$data = $result->retval;
+
+		$doubledegree_data = array_map(function($item) {
+			return [
+				'id' => $item->prestudent_id,
+				'von' => $item->start,
+				'bis' => $item->ende
+			];
+		}, $data);
+
+		return (object) array(
+			'data' => $doubledegree_data,
+			'typeId' => 'prestudent_id'
+		);
+	}
+
+	public function isCriteriaSetFor(array $params)
+	{
+		if ( !isset($params['id'], $params['studiensemester_kurzbz'], $params['typeId']) ||	$params['typeId'] !== 'prestudent_id')
+			return false;
+
+		$semester = $params['studiensemester_kurzbz'];
+		$prestudent_id = $params['id'];
+
+		$this->ci->MobilitaetModel->addSelect('prestudent_id');
+		$this->ci->MobilitaetModel->addSelect('start as von');
+		$this->ci->MobilitaetModel->addSelect('ende as bis');
+
+		$this->ci->MobilitaetModel->addJoin('bis.tbl_gsprogramm', 'gsprogramm_id');
+		$this->ci->MobilitaetModel->addJoin('public.tbl_studiensemester', 'studiensemester_kurzbz');
+
+		$result = $this->ci->MobilitaetModel->loadWhere(array(
+			'gsprogrammtyp_kurzbz' => 'Double',
+			'studiensemester_kurzbz' => $semester,
+			'prestudent_id' => $prestudent_id
+		));
+
+		if(hasData($result))
+		{
+			//array mit prestudent_id, von und bis
+			return $result;
+		}
+		else
+			return null;
+	}
+
+}
@@ -0,0 +1,81 @@
+<?php
+/**
+ * Description unruly
+ * Test for different typeId
+ *
+ * @author ma0068
+ */
+class CoreFiftyFiveTagLib
+{
+	protected $ci;
+
+	public function __construct()
+	{
+		$this->ci = get_instance();
+		$this->ci->load->model('person/Person_model', 'PersonModel');
+		$this->ci-> load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+	}
+
+	public function getZuordnungIds(array $params)
+	{
+		if(!isset($params['studiensemester_kurzbz']))
+		{
+			return (object) array(
+				'person_id' => []
+			);
+		}
+
+		$semester = $params['studiensemester_kurzbz'];
+
+		$result = $this->ci->StudiensemesterModel->loadWhere(array(
+			'studiensemester_kurzbz' => $semester
+		));
+		$data = $result->retval[0];
+
+		$semVon = $data->start;
+		$semBis = $data->ende;
+		$result = $this->ci->PersonModel->getFiftyFivers($semVon, $semBis);
+
+		$data = $result->retval;
+		$fiftyFiveData = array_map(function($item) {
+			return [
+				'id' => $item->person_id
+			];
+		}, $data);
+
+		return (object) array(
+			'data' => $fiftyFiveData,
+			'typeId' => 'person_id'
+		);
+	}
+
+	public function isCriteriaSetFor(array $params)
+	{
+		if ( !isset($params['id'], $params['studiensemester_kurzbz'], $params['typeId']) ||	$params['typeId'] !== 'person_id')
+			return false;
+
+		$semester = $params['studiensemester_kurzbz'];
+		$person_id = $params['id'];
+		$typeId = $params['typeId'];
+
+
+		$result = $this->ci->StudiensemesterModel->loadWhere(array(
+			'studiensemester_kurzbz' => $semester
+		));
+		$data = $result->retval[0];
+
+		$semVon = $data->start;
+		$semBis = $data->ende;
+		$result = $this->ci->PersonModel->isFiftyFive($semVon, $semBis, $person_id);
+
+
+		if(hasData($result))
+		{
+			return $result;
+		}
+		else
+			return null;
+	}
+
+}
+
@@ -0,0 +1,63 @@
+<?php
+/**
+ * Description of out_auto
+ *
+ * @author ma0068
+ */
+class CoreIncomingTagLib
+{
+	protected $ci;
+
+	public function __construct()
+	{
+		$this->ci = get_instance();
+		$this->ci->load->model('codex/Bisio_model', 'BisioModel');
+	}
+
+	public function getZuordnungIds(array $params)
+	{
+		if(!isset($params['studiensemester_kurzbz']))
+		{
+			return (object) array(
+				'idArray' => []
+			);
+		}
+
+		$semester = $params['studiensemester_kurzbz'];
+
+		$result = $this->ci->BisioModel->getIncomingsOfSemester($semester);
+
+		$data = $result->retval;
+
+		$outgoing_data = array_map(function($item) {
+			return [
+				'id' => $item->prestudent_id,
+				'von' => $item->von,
+				'bis' => $item->bis
+			];
+		}, $data);
+
+		return (object) array(
+			'data' => $outgoing_data,
+			'typeId' => 'prestudent_id',
+		);
+	}
+
+	public function isCriteriaSetFor(array $params)
+	{
+		if ( !isset($params['id'], $params['studiensemester_kurzbz'], $params['typeId']) ||	$params['typeId'] !== 'prestudent_id')
+			return false;
+
+		$semester = $params['studiensemester_kurzbz'];
+		$prestudent_id = $params['id'];
+
+		$result = $this->ci->BisioModel->isPrestudentIncoming($semester, $prestudent_id);
+
+		if (hasData($result)) {
+			return $result;
+		}
+		else
+			return null;
+	}
+
+}
@@ -0,0 +1,64 @@
+<?php
+/**
+ * Description of jgv_auto (Jahrgangsvertretung)
+ *
+ * @author ma0068
+ */
+class CoreJgvTagLib
+{
+	protected $ci;
+
+	public function __construct()
+	{
+		$this->ci = get_instance();
+		$this->ci->load->model('person/Benutzerfunktion_model', 'BenutzerfunktionModel');
+	}
+
+	public function getZuordnungIds(array $params)
+	{
+		if(!isset($params['studiensemester_kurzbz']))
+		{
+			return (object) array(
+				'idArray' => []
+			);
+		}
+
+		$semester = $params['studiensemester_kurzbz'];
+
+		$result = $this->ci->BenutzerfunktionModel->getPrestudentsOfJgv($semester);
+
+		$data = $result->retval;
+
+		$jgv_data = array_map(function($item) {
+			return [
+				'id' => $item->prestudent_id,
+				'von' => $item->datum_von,
+				'bis' => $item->datum_bis
+			];
+		}, $data);
+
+		return (object) array(
+			'data' => $jgv_data,
+			'typeId' => 'prestudent_id'
+		);
+	}
+
+	public function isCriteriaSetFor(array $params)
+	{
+		if ( !isset($params['id'], $params['studiensemester_kurzbz'], $params['typeId']) ||	$params['typeId'] !== 'prestudent_id')
+			return false;
+
+		$semester = $params['studiensemester_kurzbz'];
+		$prestudent_id = $params['id'];
+
+		$result = $this->ci->BenutzerfunktionModel->isJgv($semester, $prestudent_id);
+
+		if(hasData($result))
+		{
+			return $result;
+		}
+		else
+			return null;
+	}
+
+}
@@ -0,0 +1,112 @@
+<?php
+/**
+ * Description of zgv_auto
+ *
+ * @author ma0068
+ */
+class CoreMissingZgvTagLib
+{
+	protected $ci;
+
+	public function __construct()
+	{
+		$this->ci = get_instance();
+		$this->ci->load->model('crm/Prestudent_model', 'PrestudentModel');
+	}
+
+	public function getZuordnungIds(array $params)
+	{
+		if(!isset($params['studiensemester_kurzbz']))
+		{
+			return (object) array(
+				'idArray' => []
+			);
+		}
+
+		$semester = $params['studiensemester_kurzbz'];
+
+		$this->ci->PrestudentModel->addJoin('public.tbl_prestudentstatus', 'prestudent_id');
+		$this->ci->PrestudentModel->addJoin('public.tbl_benutzer bn', 'person_id');
+		$this->ci->PrestudentModel->addJoin('public.tbl_studiengang', 'studiengang_kz');
+
+		$this->ci->PrestudentModel->db->group_start();
+
+		$this->ci->PrestudentModel->db->where('zgvdatum', null);
+		$this->ci->PrestudentModel->db->where('typ', 'b');
+
+		$this->ci->PrestudentModel->db->or_group_start();
+		$this->ci->PrestudentModel->db->where('zgvmadatum', null);
+		$this->ci->PrestudentModel->db->where('typ', 'm');
+		$this->ci->PrestudentModel->db->group_end();
+
+		$this->ci->PrestudentModel->db->group_end();
+
+		$result = $this->ci->PrestudentModel-> loadWhere(array(
+			'bn.aktiv' => true,
+			'studiensemester_kurzbz' => $semester
+		));
+
+		$data = $result->retval;
+
+		$zgvmissing_data = array_map(function($item) {
+			return [
+				'id' => $item->prestudent_id,
+				'von' => null,
+				'bis' => null
+			];
+		}, $data);
+
+		return (object) array(
+			'typeId' => 'prestudent_id',
+			'data' => $zgvmissing_data
+		);
+
+	}
+
+	public function isCriteriaSetFor(array $params)
+	{
+		if ( !isset($params['id'], $params['studiensemester_kurzbz'], $params['typeId']) ||	$params['typeId'] !== 'prestudent_id')
+			return false;
+
+		$semester = $params['studiensemester_kurzbz'];
+		$prestudent_id = $params['id'];
+
+		$this->ci->PrestudentModel->addSelect('prestudent_id');
+		$this->ci->PrestudentModel->addSelect('start as von');
+		$this->ci->PrestudentModel->addSelect('ende as bis');
+		$this->ci->PrestudentModel->addJoin('public.tbl_prestudentstatus', 'prestudent_id');
+
+		//add studiensemester also here for manual rebuild
+		$this->ci->PrestudentModel->addJoin('public.tbl_studiensemester', 'studiensemester_kurzbz');
+
+		$this->ci->PrestudentModel->addJoin('public.tbl_benutzer bn', 'person_id');
+		$this->ci->PrestudentModel->addJoin('public.tbl_studiengang', 'studiengang_kz');
+
+		$this->ci->PrestudentModel->db->group_start();
+
+		$this->ci->PrestudentModel->db->where('zgvdatum', null);
+		$this->ci->PrestudentModel->db->where('typ', 'b');
+
+		$this->ci->PrestudentModel->db->or_group_start();
+		$this->ci->PrestudentModel->db->where('zgvmadatum', null);
+		$this->ci->PrestudentModel->db->where('typ', 'm');
+		$this->ci->PrestudentModel->db->group_end();
+
+		$this->ci->PrestudentModel->db->group_end();
+		$this->ci->PrestudentModel->db->limit(1);
+
+		$result = $this->ci->PrestudentModel-> loadWhere(array(
+			'bn.aktiv' => true,
+			'studiensemester_kurzbz' => $semester,
+			'prestudent_id' => $prestudent_id
+		));
+
+		if(hasData($result))
+		{
+			return $result;
+		}
+		else
+			return null;
+	}
+
+}
@@ -0,0 +1,63 @@
+<?php
+/**
+ * Description of out_auto
+ *
+ * @author ma0068
+ */
+class CoreOutgoingTagLib
+{
+	protected $ci;
+
+	public function __construct()
+	{
+		$this->ci = get_instance();
+		$this->ci->load->model('codex/Bisio_model', 'BisioModel');
+	}
+
+	public function getZuordnungIds(array $params)
+	{
+		if(!isset($params['studiensemester_kurzbz']))
+		{
+			return (object) array(
+				'idArray' => []
+			);
+		}
+
+		$semester = $params['studiensemester_kurzbz'];
+
+		$result = $this->ci->BisioModel->getOutgoingsOfSemester($semester);
+
+		$data = $result->retval;
+
+		$outgoing_data = array_map(function($item) {
+			return [
+				'id' => $item->prestudent_id,
+				'von' => $item->von,
+				'bis' => $item->bis
+			];
+		}, $data);
+
+		return (object) array(
+			'data' => $outgoing_data,
+			'typeId' => 'prestudent_id',
+		);
+	}
+
+	public function isCriteriaSetFor(array $params)
+	{
+		if ( !isset($params['id'], $params['studiensemester_kurzbz'], $params['typeId']) ||	$params['typeId'] !== 'prestudent_id')
+			return false;
+
+		$semester = $params['studiensemester_kurzbz'];
+		$prestudent_id = $params['id'];
+
+		$result = $this->ci->BisioModel->isPrestudentOutgoing($semester, $prestudent_id);
+
+		if (hasData($result)) {
+			return $result;
+		}
+		else
+			return null;
+	}
+
+}
@@ -0,0 +1,80 @@
+<?php
+/**
+ * Description of prewh_auto
+ *
+ * @author ma0068
+ */
+class CorePreabbrecherTagLib
+{
+	protected $ci;
+	const TYP_ABMELDUNG = ['Abmeldung', 'AbmeldungStgl'];
+
+	public function __construct()
+	{
+		$this->ci = get_instance();
+		$this->ci->load->model('education/Studierendenantrag_model', 'StudierendenantragModel');
+	}
+
+	public function getZuordnungIds(array $params)
+	{
+		if(!isset($params['studiensemester_kurzbz']))
+		{
+			return (object) array(
+				'idArray' => []
+			);
+		}
+
+		$semester = $params['studiensemester_kurzbz'];
+
+		$this->ci->StudierendenantragModel->addJoin('public.tbl_studiensemester', 'studiensemester_kurzbz');
+		$this->ci->StudierendenantragModel->db->where_in('typ', self::TYP_ABMELDUNG);
+		$this->ci->StudierendenantragModel->db->where('studiensemester_kurzbz', $semester);
+		$result = $this->ci->StudierendenantragModel->getWithLastStatusWhere([
+			'studierendenantrag_statustyp_kurzbz' => Studierendenantragstatus_model::STATUS_CREATED
+		]);
+
+		$data = $result->retval;
+
+		$prewiederholer_data = array_map(function($item) {
+			return [
+				'id' => $item->prestudent_id,
+				'von' => $item->start,
+				'bis' => $item->ende
+			];
+		}, $data);
+
+		return (object) array(
+			'data' => $prewiederholer_data,
+			'typeId' => 'prestudent_id',
+		);
+	}
+
+	public function isCriteriaSetFor(array $params)
+	{
+		if ( !isset($params['id'], $params['studiensemester_kurzbz'], $params['typeId']) ||	$params['typeId'] !== 'prestudent_id')
+			return false;
+
+		$semester = $params['studiensemester_kurzbz'];
+		$prestudent_id = $params['id'];
+
+		$this->ci->StudierendenantragModel->addSelect('prestudent_id');
+		$this->ci->StudierendenantragModel->addSelect('start as von');
+		$this->ci->StudierendenantragModel->addSelect('ende as bis');
+
+		$this->ci->StudierendenantragModel->addJoin('public.tbl_studiensemester', 'studiensemester_kurzbz');
+		$this->ci->StudierendenantragModel->db->where_in('typ', self::TYP_ABMELDUNG);
+		$this->ci->StudierendenantragModel->db->where('studiensemester_kurzbz', $semester);
+		$this->ci->StudierendenantragModel->db->where('prestudent_id', $prestudent_id);
+		$result = $this->ci->StudierendenantragModel->getWithLastStatusWhere([
+			'studierendenantrag_statustyp_kurzbz' => Studierendenantragstatus_model::STATUS_CREATED
+		]);
+
+		if(hasData($result))
+		{
+			return $result;
+		}
+		else
+			return null;
+	}
+
+}
@@ -0,0 +1,76 @@
+<?php
+/**
+ * Description of prewh_auto
+ *
+ * @author bambi
+ */
+class CorePrewiederholerTagLib
+{
+	protected $ci;
+
+	public function __construct()
+	{
+		$this->ci = get_instance();
+		$this->ci->load->model('crm/Prestudentstatus_model', 'PrestudentstatusModel');
+	}
+
+	public function getZuordnungIds(array $params)
+	{
+		if(!isset($params['studiensemester_kurzbz']))
+		{
+			return (object) array(
+				'idArray' => []
+			);
+		}
+
+		$semester = $params['studiensemester_kurzbz'];
+
+		$this->ci->PrestudentstatusModel->addJoin('public.tbl_studiensemester', 'studiensemester_kurzbz');
+		$result = $this->ci->PrestudentstatusModel-> loadWhere(array(
+			'statusgrund_id' => 15,
+			'studiensemester_kurzbz' => $semester
+		));
+		$data = $result->retval;
+
+		$prewiederholer_data = array_map(function($item) {
+			return [
+				'id' => $item->prestudent_id,
+				'von' => $item->start,
+				'bis' => $item->ende
+			];
+		}, $data);
+
+		return (object) array(
+			'data' => $prewiederholer_data,
+			'typeId' => 'prestudent_id',
+		);
+	}
+
+	public function isCriteriaSetFor(array $params)
+	{
+		if ( !isset($params['id'], $params['studiensemester_kurzbz'], $params['typeId']) ||	$params['typeId'] !== 'prestudent_id')
+			return false;
+
+		$semester = $params['studiensemester_kurzbz'];
+		$prestudent_id = $params['id'];
+
+		$this->ci->PrestudentstatusModel->addSelect('prestudent_id');
+		$this->ci->PrestudentstatusModel->addSelect('start as von');
+		$this->ci->PrestudentstatusModel->addSelect('ende as bis');
+
+		$this->ci->PrestudentstatusModel->addJoin('public.tbl_studiensemester', 'studiensemester_kurzbz');
+
+		$result = $this->ci->PrestudentstatusModel->loadWhere(array(
+			'statusgrund_id' => 15,
+			'studiensemester_kurzbz' => $semester,
+			'prestudent_id' => $prestudent_id
+		));
+		if(hasData($result))
+		{
+			return $result;
+		}
+		else
+			return null;
+	}
+
+}
@@ -0,0 +1,79 @@
+<?php
+/**
+ * Description of dd_auto
+ *
+ * @author ma0068
+ */
+class CoreStbErhoehtTagLib
+{
+	protected $ci;
+
+	public function __construct()
+	{
+		$this->ci = get_instance();
+		$this->ci->load->model('crm/Konto_model', 'KontoModel');
+	}
+
+	public function getZuordnungIds(array $params)
+	{
+		if(!isset($params['studiensemester_kurzbz']))
+		{
+			return (object) array(
+				'idArray' => []
+			);
+		}
+
+		$semester = $params['studiensemester_kurzbz'];
+
+		$this->ci->KontoModel->addJoin('public.tbl_prestudent', 'person_id');
+		$this->ci->KontoModel->addJoin('public.tbl_studiensemester', 'studiensemester_kurzbz');
+
+		$result = $this->ci->KontoModel-> loadWhere(array(
+			'buchungstyp_kurzbz' => 'StudiengebuehrErhoeht',
+			'studiensemester_kurzbz' => $semester
+		));
+		$data = $result->retval;
+
+		$konto_data = array_map(function($item) {
+			return [
+				'id' => $item->prestudent_id,
+				'von' => $item->start,
+				'bis' => $item->ende
+			];
+		}, $data);
+
+		return (object) array(
+			'data' => $konto_data,
+			'typeId' => 'prestudent_id'
+		);
+	}
+
+	public function isCriteriaSetFor(array $params)
+	{
+		if ( !isset($params['id'], $params['studiensemester_kurzbz'], $params['typeId']) ||	$params['typeId'] !== 'prestudent_id')
+			return false;
+
+		$semester = $params['studiensemester_kurzbz'];
+		$prestudent_id = $params['id'];
+
+		$this->ci->KontoModel->addSelect('prestudent_id');
+		$this->ci->KontoModel->addSelect('start as von');
+		$this->ci->KontoModel->addSelect('ende as bis');
+		$this->ci->KontoModel->addJoin('public.tbl_prestudent', 'person_id');
+		$this->ci->KontoModel->addJoin('public.tbl_studiensemester', 'studiensemester_kurzbz');
+
+		$result = $this->ci->KontoModel-> loadWhere(array(
+			'buchungstyp_kurzbz' => 'StudiengebuehrErhoeht',
+			'studiensemester_kurzbz' => $semester,
+			'prestudent_id' => $prestudent_id
+		));
+
+		if(hasData($result))
+		{
+			return $result;
+		}
+		else
+			return null;
+	}
+
+}
@@ -0,0 +1,76 @@
+<?php
+/**
+ * Description of wiedereinstieg_auto
+ *
+ * @author ma0068
+ */
+class CoreUnterbrecherTagLib
+{
+	protected $ci;
+
+	public function __construct()
+	{
+		$this->ci = get_instance();
+		$this->ci->load->model('crm/Prestudentstatus_model', 'PrestudentstatusModel');
+	}
+
+	public function getZuordnungIds(array $params)
+	{
+		if(!isset($params['studiensemester_kurzbz']))
+		{
+			return (object) array(
+				'idArray' => []
+			);
+		}
+
+		$semester = $params['studiensemester_kurzbz'];
+		$this->ci->PrestudentstatusModel->addJoin('public.tbl_studiensemester', 'studiensemester_kurzbz');
+
+		$result = $this->ci->PrestudentstatusModel-> loadWhere(array(
+			'status_kurzbz' => 'Unterbrecher',
+			'studiensemester_kurzbz' => $semester
+		));
+		$data = $result->retval;
+
+		$unterbrecher_data = array_map(function($item) {
+			return [
+				'id' => $item->prestudent_id,
+				'von' => $item->start,
+				'bis' => $item->ende
+			];
+		}, $data);
+
+		return (object) array(
+			'data' => $unterbrecher_data,
+			'typeId' => 'prestudent_id'
+		);
+	}
+
+	public function isCriteriaSetFor(array $params)
+	{
+		if ( !isset($params['id'], $params['studiensemester_kurzbz'], $params['typeId']) ||	$params['typeId'] !== 'prestudent_id')
+			return false;
+
+		$semester = $params['studiensemester_kurzbz'];
+		$prestudent_id = $params['id'];
+
+		$this->ci->PrestudentstatusModel->addSelect('prestudent_id');
+		$this->ci->PrestudentstatusModel->addSelect('start as von');
+		$this->ci->PrestudentstatusModel->addSelect('ende as bis');
+
+		$this->ci->PrestudentstatusModel->addJoin('public.tbl_studiensemester', 'studiensemester_kurzbz');
+		$result = $this->ci->PrestudentstatusModel-> loadWhere(array(
+			'status_kurzbz' => 'Unterbrecher',
+			'studiensemester_kurzbz' => $semester,
+			'prestudent_id' => $prestudent_id
+		));
+
+		if(hasData($result))
+		{
+			return $result;
+		}
+		else
+			return null;
+	}
+
+}
@@ -0,0 +1,76 @@
+<?php
+/**
+ * Description of wh_auto
+ *
+ * @author bambi
+ */
+class CoreWiederholerTagLib
+{
+	protected $ci;
+
+	public function __construct()
+	{
+		$this->ci = get_instance();
+		$this->ci->load->model('crm/Prestudentstatus_model', 'PrestudentstatusModel');
+	}
+
+	public function getZuordnungIds(array $params)
+	{
+		if(!isset($params['studiensemester_kurzbz']))
+		{
+			return (object) array(
+				'idArray' => []
+			);
+		}
+
+		$semester = $params['studiensemester_kurzbz'];
+
+		$this->ci->PrestudentstatusModel->addJoin('public.tbl_studiensemester', 'studiensemester_kurzbz');
+		$result = $this->ci->PrestudentstatusModel-> loadWhere(array(
+			'statusgrund_id' => 16,
+			'studiensemester_kurzbz' => $semester
+		));
+		$data = $result->retval;
+
+		$wiederholer_data = array_map(function($item) {
+			return [
+				'id' => $item->prestudent_id,
+				'von' => $item->start,
+				'bis' => $item->ende
+			];
+		}, $data);
+
+		return (object) array(
+			'typeId' => 'prestudent_id',
+			'data' => $wiederholer_data
+		);
+	}
+
+	public function isCriteriaSetFor(array $params)
+	{
+		if ( !isset($params['id'], $params['studiensemester_kurzbz'], $params['typeId']) ||	$params['typeId'] !== 'prestudent_id')
+			return false;
+
+		$semester = $params['studiensemester_kurzbz'];
+		$prestudent_id = $params['id'];
+
+		$this->ci->PrestudentstatusModel->addSelect('prestudent_id');
+		$this->ci->PrestudentstatusModel->addSelect('start as von');
+		$this->ci->PrestudentstatusModel->addSelect('ende as bis');
+
+		$this->ci->PrestudentstatusModel->addJoin('public.tbl_studiensemester', 'studiensemester_kurzbz');
+
+		$result = $this->ci->PrestudentstatusModel->loadWhere(array(
+			'statusgrund_id' => 16,
+			'studiensemester_kurzbz' => $semester,
+			'prestudent_id' => $prestudent_id,
+		));
+
+		if(hasData($result))
+		{
+			return $result;
+		}
+		else
+			return null;
+	}
+}
@@ -0,0 +1,192 @@
+<?php
+
+/**
+ * Copyright (C) 2026 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');
+
+/**
+ * LvVw Menu library
+ */
+class LvVwLib
+{
+	protected $_ci = null;
+
+	public $config = [];
+
+	public function __construct()
+	{
+		// Get code igniter instance
+		$this->_ci =& get_instance();
+
+		// Load Tree-config
+		$this->_ci->load->config('treemenu/custom/lvvw');
+		$this->config = $this->_ci->config->item('root');
+
+		// Load Libraries
+		$this->_ci->load->library('treemenu/base/StgLib');
+
+		// Load Model
+		$this->_ci->load->model('organisation/Studiengang_model', 'StudiengangModel');
+	}
+
+	public function stg($path_template)
+	{
+		$permittedStgs = $this->getPermittedStudiengangKzs();
+
+		if (!$permittedStgs)
+			return [];
+
+		$this->_ci->StudiengangModel->addSelect("ARRAY['link', FORMAT('{" .
+			'"type": "verband",' .
+			'"id": "lv/%1$s",' .
+			'"gruppe_kurzbz": null,' .
+			'"semester": null,' .
+			'"verband": null,' .
+			'"gruppe": null,' .
+			'"lehrverband": true,' .
+			'"stg_kz": "%1$s"' .
+		"}', studiengang_kz)] AS draggable", false);
+
+		return $this->_ci->stglib->studiengang($path_template, $permittedStgs);
+	}
+
+	public function semester($path_template, $has_children, $stg)
+	{
+		$stg = $this->getStgFromUrl($stg);
+
+		if ($stg === null)
+			return [];
+
+		if (!$has_children)
+			$this->_ci->StudiengangModel->db->select('TRUE AS leaf', false);
+		$this->_ci->StudiengangModel->addSelect("ARRAY['link', FORMAT('{" .
+			'"type": "verband",' .
+			'"id": "lv/%1$s/%2$s",' .
+			'"gruppe_kurzbz": null,' .
+			'"semester": "%2$s",' .
+			'"verband": null,' .
+			'"gruppe": null,' .
+			'"lehrverband": true,' .
+			'"stg_kz": "%1$s"' .
+		"}', v.studiengang_kz, v.semester)] AS draggable", false);
+
+		return $this->_ci->stglib->semester($path_template, $stg->studiengang_kz);
+	}
+
+	public function verband($path_template, $stg, $semester)
+	{
+		$stg = $this->getStgFromUrl($stg);
+
+		if ($stg === null)
+			return [];
+
+		$this->_ci->StudiengangModel->addSelect("CASE WHEN MAX(gruppe)='' OR MAX(gruppe)=' ' THEN TRUE ELSE FALSE END AS leaf");
+		$this->_ci->StudiengangModel->addSelect("ARRAY['link', FORMAT('{" .
+			'"type": "verband",' .
+			'"id": "lv/%1$s/%2$s/%3$s",' .
+			'"gruppe_kurzbz": null,' .
+			'"semester": "%2$s",' .
+			'"verband": "%3$s",' .
+			'"gruppe": null,' .
+			'"lehrverband": true,' .
+			'"stg_kz": "%1$s"' .
+		"}', v.studiengang_kz, v.semester, v.verband)] AS draggable", false);
+		$this->_ci->StudiengangModel->addGroupBy('v.studiengang_kz, v.semester');
+
+		return $this->_ci->stglib->verband($path_template, $stg->studiengang_kz, $semester);
+	}
+
+	public function group($path_template, $stg, $semester, $verband)
+	{
+		$stg = $this->getStgFromUrl($stg);
+
+		if ($stg === null)
+			return [];
+
+		$this->_ci->StudiengangModel->db->select('TRUE AS leaf', false);
+		
+		if ($verband === null) {
+			$this->_ci->StudiengangModel->addSelect("ARRAY['link', FORMAT('{" .
+				'"type": "verband",' .
+				'"id": "grp/%1$s/%2$s/%3$s",' .
+				'"gruppe_kurzbz": "%3$s",' .
+				'"semester": "%2$s",' .
+				'"verband": null,' .
+				'"gruppe": null,' .
+				'"lehrverband": false,' .
+				'"stg_kz": "%1$s"' .
+			"}', studiengang_kz, semester, gruppe_kurzbz)] AS draggable", false);
+
+			return $this->_ci->stglib->group($path_template, $stg->studiengang_kz, $semester);
+		}
+
+		$this->_ci->StudiengangModel->addSelect("ARRAY['link', FORMAT('{" .
+			'"type": "verband",' .
+			'"id": "lv/%1$s/%2$s/%3$s/%4$s",' .
+			'"gruppe_kurzbz": null,' .
+			'"semester": "%2$s",' .
+			'"verband": "%3$s",' .
+			'"gruppe": "%4$s",' .
+			'"lehrverband": true,' .
+			'"stg_kz": "%1$s"' .
+		"}', v.studiengang_kz, v.semester, v.verband, v.gruppe)] AS draggable", false);
+
+		return $this->_ci->stglib->verbandsgroup($path_template, $stg->studiengang_kz, $semester, $verband);
+	}
+
+	public function orgform($path_template, $stg)
+	{
+		$stg = $this->getStgFromUrl($stg);
+
+		if ($stg === null)
+			return [];
+
+		if (!$stg->mischform)
+			return [];
+		
+		$this->_ci->StudiengangModel->db->select('TRUE AS leaf', false);
+
+		return $this->_ci->stglib->orgform($path_template, $stg->studiengang_kz);
+	}
+
+	protected function getPermittedStudiengangKzs()
+	{
+		$permittedStgs = $this->_ci->permissionlib->getSTG_isEntitledFor('admin') ?: [];
+		$permittedStgs = array_merge($permittedStgs, $this->_ci->permissionlib->getSTG_isEntitledFor('assistenz') ?: []);
+
+		return $permittedStgs;
+	}
+
+	protected function getStgFromUrl($stg)
+	{
+		$permittedStgs = $this->getPermittedStudiengangKzs();
+
+		if (!$permittedStgs)
+			return null;
+
+		$this->_ci->StudiengangModel->db->where_in('studiengang_kz', $permittedStgs);
+		$stg = $this->_ci->StudiengangModel->loadWhere([
+			'LOWER(CONCAT(typ, kurzbz)) =' => $stg
+		]);
+
+		if (!hasData($stg))
+			return null;
+
+		return current(getData($stg));
+	}
+}
@@ -0,0 +1,257 @@
+<?php
+
+/**
+ * Copyright (C) 2026 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');
+
+/**
+ * StudVw Menu library
+ */
+class StudVwLib
+{
+	protected $_ci = null;
+
+	public $config = [];
+
+	public $redirect_method = [
+		'interessenten' => 'filter',
+		'bewerbungnichtabgeschickt' => 'filter',
+		'bewerbungabgeschickt' => 'filter',
+		'zgv' => 'filter',
+		'statusbestaetigt' => 'filter',
+		'statusbestaetigtrtnichtangemeldet' => 'filter',
+		'statusbestaetigtrtangemeldet' => 'filter',
+		'reihungstestnichtangemeldet' => 'filter',
+		'reihungstestangemeldet' => 'filter',
+		'bewerber' => 'filter',
+		'bewerberrtnichtangemeldet' => 'filter',
+		'bewerberrtangemeldet' => 'filter',
+		'bewerberrtangemeldetteilgenommen' => 'filter',
+		'bewerberrtangemeldetnichtteilgenommen' => 'filter',
+		'aufgenommen' => 'filter',
+		'warteliste' => 'filter',
+		'absage' => 'filter',
+		'outgoing' => 'inout',
+		'shared_studies' => 'inout'
+	];
+
+	public function __construct()
+	{
+		// Get code igniter instance
+		$this->_ci =& get_instance();
+
+		// Load Tree-config
+		$this->_ci->load->config('treemenu/stg_base');
+		$this->config = $this->_ci->config->item('root');
+
+		// Load Libraries
+		$this->_ci->load->library('treemenu/base/StgLib');
+
+		// Load Model
+		$this->_ci->load->model('organisation/Studiengang_model', 'StudiengangModel');
+	}
+
+	public function stg($path_template)
+	{
+		$permittedStgs = $this->getPermittedStudiengangKzs();
+
+		if (!$permittedStgs)
+			return [];
+
+		return $this->_ci->stglib->studiengang($path_template, $permittedStgs);
+	}
+
+	public function prestudent($path_template, $stg)
+	{
+		// Check permission
+		if ($this->getStgFromUrl($stg) === null)
+			return [];
+
+		return [
+			[
+				'path' => sprintf($path_template, '1'),
+				'name' => ['lehre', 'prestudent'],
+				'no_sem_reload' => true
+			]
+		];
+	}
+
+	public function stdsem($path_template, $stg)
+	{
+		$stg = $this->getStgFromUrl($stg);
+
+		if ($stg === null)
+			return [];
+
+		return $this->_ci->stglib->studiensemester($path_template, $stg->studiengang_kz);
+	}
+
+	public function semester($path_template, $stg, $orgform)
+	{
+		$stg = $this->getStgFromUrl($stg);
+
+		if ($stg === null)
+			return [];
+
+		if ($orgform !== null) {
+			$orgform = $this->getOrgform($orgform);
+			if ($orgform === null)
+				return [];
+			$orgform = $orgform->orgform_kurzbz;
+		}
+
+		return $this->_ci->stglib->semester($path_template, $stg->studiengang_kz, $orgform);
+	}
+
+	public function verband($path_template, $stg, $semester, $orgform)
+	{
+		$stg = $this->getStgFromUrl($stg);
+
+		if ($stg === null)
+			return [];
+
+		if ($orgform !== null) {
+			$orgform = $this->getOrgform($orgform);
+			if ($orgform === null)
+				return [];
+			$orgform = $orgform->orgform_kurzbz;
+		}
+
+		$this->_ci->StudiengangModel->addSelect("CASE WHEN MAX(gruppe)='' OR MAX(gruppe)=' ' THEN TRUE ELSE FALSE END AS leaf");
+
+		return $this->_ci->stglib->verband($path_template, $stg->studiengang_kz, $semester, $orgform);
+	}
+
+	public function group($path_template, $stg, $semester, $verband, $orgform)
+	{
+		$stg = $this->getStgFromUrl($stg);
+
+		if ($stg === null)
+			return [];
+
+		if ($orgform !== null) {
+			$orgform = $this->getOrgform($orgform);
+			if ($orgform === null)
+				return [];
+			$orgform = $orgform->orgform_kurzbz;
+		}
+
+		$this->_ci->StudiengangModel->db->select('TRUE AS leaf', false);
+		
+		if ($verband === null)
+			return $this->_ci->stglib->group($path_template, $stg->studiengang_kz, $semester, $orgform);
+
+		return $this->_ci->stglib->verbandsgroup($path_template, $stg->studiengang_kz, $semester, $verband, $orgform);
+	}
+
+	public function orgform($path_template, $stg)
+	{
+		$stg = $this->getStgFromUrl($stg);
+
+		if ($stg === null)
+			return [];
+
+		if (!$stg->mischform)
+			return [];
+
+		return $this->_ci->stglib->orgform($path_template, $stg->studiengang_kz);
+	}
+
+	public function incoming($has_children, $path_template, $stg)
+	{
+		if ($stg === null)
+			return $this->inout('incoming', $has_children, $path_template);
+		
+		return $this->filter('incoming', $has_children, $path_template, $stg);
+	}
+
+	public function filter($original_method, $has_children, $path_template, $stg)
+	{
+		$stg = $this->getStgFromUrl($stg);
+
+		if ($stg === null)
+			return [];
+
+		// TODO(chris): phrasen
+		$item = [
+			'path' => sprintf($path_template, '1'),
+			'name' => ['treemenu', 'filter_' . $original_method]
+		];
+
+		if (!$has_children)
+			$item['leaf'] = true;
+
+		return [ $item ];
+	}
+
+	public function inout($original_method, $has_children, $path_template)
+	{
+		if (!$this->_ci->permissionlib->isBerechtigt('inout/uebersicht'))
+			return [];
+
+		// TODO(chris): phrasen
+		$item = [
+			'path' => sprintf($path_template, '1'),
+			'name' => ['treemenu', 'inout_' . $original_method]
+		];
+
+		if (!$has_children)
+			$item['leaf'] = true;
+
+		return [ $item ];
+	}
+
+	protected function getOrgform($orgform)
+	{
+		$this->_ci->load->model('codex/Orgform_model', 'OrgformModel');
+		$orgform = $this->_ci->OrgformModel->loadWhere([
+			'LOWER(orgform_kurzbz) =' => $orgform
+		]);
+
+		if (!hasData($orgform))
+			return null;
+
+		return current(getData($orgform));
+	}
+
+	protected function getPermittedStudiengangKzs()
+	{
+		$permittedStgs = $this->_ci->permissionlib->getSTG_isEntitledFor('admin') ?: [];
+		$permittedStgs = array_merge($permittedStgs, $this->_ci->permissionlib->getSTG_isEntitledFor('assistenz') ?: []);
+
+		return $permittedStgs;
+	}
+
+	protected function getStgFromUrl($stg)
+	{
+		$permittedStgs = $this->getPermittedStudiengangKzs();
+
+		if (!$permittedStgs)
+			return null;
+
+		$this->_ci->StudiengangModel->db->where_in('studiengang_kz', $permittedStgs);
+		$stg = $this->_ci->StudiengangModel->loadWhere([
+			'LOWER(CONCAT(typ, kurzbz)) =' => $stg
+		]);
+
+		if (!hasData($stg))
+			return null;
+
+		return current(getData($stg));
+	}
+}
@@ -0,0 +1,313 @@
+<?php
+
+/**
+ * Copyright (C) 2026 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');
+
+/**
+ * Stg Base library
+ */
+class StgLib
+{
+	protected $_ci = null;
+
+	public function __construct()
+	{
+		// Get code igniter instance
+		$this->_ci =& get_instance();
+	}
+
+	public function studiengang($path_template, $permittedStgs = [])
+	{
+		$this->_ci->load->model('organisation/Studiengang_model', 'StudiengangModel');
+
+		$this->_ci->StudiengangModel->addJoin('public.tbl_lehrverband v', 'studiengang_kz');
+		
+		$this->_ci->StudiengangModel->addDistinct();
+		$this->_ci->StudiengangModel->addSelect("FORMAT(" . $this->_ci->StudiengangModel->escape($path_template) . ", LOWER(CONCAT(typ, kurzbz))) AS path");
+		$this->_ci->StudiengangModel->addSelect(
+			"CONCAT(kurzbzlang, ' (', UPPER(CONCAT(typ, kurzbz)), ') - ', tbl_studiengang.bezeichnung) AS name",
+			false
+		);
+		$this->_ci->StudiengangModel->addSelect("studiengang_kz AS title");
+		$this->_ci->StudiengangModel->addSelect("studiengang_kz AS search");
+		$this->_ci->StudiengangModel->addSelect('erhalter_kz');
+		$this->_ci->StudiengangModel->addSelect('typ');
+		$this->_ci->StudiengangModel->addSelect('kurzbz');
+		$this->_ci->StudiengangModel->addSelect('studiengang_kz');
+		$this->_ci->StudiengangModel->addSelect('studiengang_kz AS stg_kz');
+		
+		$this->_ci->StudiengangModel->addOrder('erhalter_kz');
+		$this->_ci->StudiengangModel->addOrder('typ');
+		$this->_ci->StudiengangModel->addOrder('kurzbz');
+
+		if ($permittedStgs)
+			$this->_ci->StudiengangModel->db->where_in('studiengang_kz', $permittedStgs);
+
+		$result = $this->_ci->StudiengangModel->loadWhere(['v.aktiv' => true]);
+
+		return getData($result) ?: [];
+	}
+
+	public function semester($path_template, $studiengang_kz, $orgform_kurzbz = null)
+	{
+		$this->_ci->load->model('organisation/Studiengang_model', 'StudiengangModel');
+
+		$this->_ci->StudiengangModel->addJoin('public.tbl_lehrverband v', 'studiengang_kz');
+		
+		$this->_ci->StudiengangModel->addDistinct();
+		$this->_ci->StudiengangModel->addSelect("FORMAT(" . $this->_ci->StudiengangModel->escape($path_template) . ", semester) AS path", false);
+		$this->_ci->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->_ci->StudiengangModel->addSelect('semester');
+		$this->_ci->StudiengangModel->addSelect('v.studiengang_kz AS stg_kz');
+		$this->_ci->StudiengangModel->addSelect("ARRAY['link-strict', 'student-collection'] AS droplink");
+		
+		$this->_ci->StudiengangModel->addOrder('semester');
+
+		if ($orgform_kurzbz !== null) {
+			$this->_ci->StudiengangModel->addSelect($this->_ci->StudiengangModel->escape($orgform_kurzbz) . " AS orgform_kurzbz", false);
+			$this->_ci->StudiengangModel->addDistinct();
+			$this->_ci->StudiengangModel->db->group_start();
+			$this->_ci->StudiengangModel->db->where('v.semester', 0);
+			$this->_ci->StudiengangModel->db->or_where('v.orgform_kurzbz', $orgform_kurzbz);
+			$this->_ci->StudiengangModel->db->group_end();
+		}
+
+		$result = $this->_ci->StudiengangModel->loadWhere([
+			'studiengang_kz' => $studiengang_kz,
+			'v.aktiv' => true
+		]);
+
+
+		return getData($result) ?: [];
+	}
+
+	public function group($path_template, $studiengang_kz, $semester, $orgform_kurzbz = null)
+	{
+		$this->_ci->load->model('organisation/Gruppe_model', 'GruppeModel');
+
+		$this->_ci->GruppeModel->addDistinct();
+		$this->_ci->GruppeModel->addSelect("FORMAT(" . $this->_ci->GruppeModel->escape($path_template) . ", gruppe_kurzbz) AS path", false);
+		$this->_ci->GruppeModel->addSelect("CONCAT(gruppe_kurzbz, ' (', bezeichnung, ')') AS name", false);
+
+		$this->_ci->GruppeModel->addSelect('sort');
+		$this->_ci->GruppeModel->addSelect('gruppe_kurzbz');
+		$this->_ci->GruppeModel->addSelect($this->_ci->GruppeModel->escape($studiengang_kz) . '::integer AS stg_kz', false);
+		$this->_ci->GruppeModel->addSelect("ARRAY['link-strict', 'student-collection'] AS droplink");
+
+		$this->_ci->GruppeModel->addOrder('sort');
+		$this->_ci->GruppeModel->addOrder('gruppe_kurzbz');
+
+		$where = [
+			'studiengang_kz' => $studiengang_kz,
+			'semester' => $semester,
+			'lehre' => true,
+			'sichtbar' => true,
+			'aktiv' => true,
+			'direktinskription' => false
+		];
+
+		if ($orgform_kurzbz !== null)
+			$where['orgform_kurzbz'] = $orgform_kurzbz;
+
+		$result = $this->_ci->GruppeModel->loadWhere($where);
+
+		return getData($result) ?: [];
+	}
+
+	public function verband($path_template, $studiengang_kz, $semester, $orgform_kurzbz = null)
+	{
+		$this->_ci->load->model('organisation/Studiengang_model', 'StudiengangModel');
+		
+		$this->_ci->StudiengangModel->addJoin('public.tbl_lehrverband v', 'studiengang_kz');
+		
+		$this->_ci->StudiengangModel->addSelect("FORMAT(" . $this->_ci->StudiengangModel->escape($path_template) . ", verband) AS path", false);
+		$this->_ci->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);
+
+		$this->_ci->StudiengangModel->addSelect($this->_ci->StudiengangModel->escape($semester) . ' AS semester');
+		$this->_ci->StudiengangModel->addSelect('verband');
+		$this->_ci->StudiengangModel->addSelect($this->_ci->StudiengangModel->escape($studiengang_kz) . '::integer AS stg_kz', false);
+		$this->_ci->StudiengangModel->addSelect("ARRAY['link-strict', 'student-collection'] AS droplink");
+		
+		$this->_ci->StudiengangModel->addOrder('verband');
+
+		$this->_ci->StudiengangModel->addGroupBy('path, name, verband');
+		
+		$where = [
+			'v.studiengang_kz' => $studiengang_kz,
+			'v.semester' => $semester,
+			'v.verband !=' => '',
+			'v.aktiv' => true
+		];
+
+		if ($orgform_kurzbz !== null && $semester) // NOTE(chris): on semester 0 show all?
+			$where['v.orgform_kurzbz'] = $orgform_kurzbz;
+
+		$result = $this->_ci->StudiengangModel->loadWhere($where);
+
+		return getData($result) ?: [];
+	}
+
+	public function verbandsgroup($path_template, $studiengang_kz, $semester, $verband, $orgform_kurzbz = null)
+	{
+		$this->_ci->load->model('organisation/Studiengang_model', 'StudiengangModel');
+
+		$this->_ci->StudiengangModel->addJoin('public.tbl_lehrverband v', 'studiengang_kz');
+		
+		$this->_ci->StudiengangModel->addDistinct();
+		$this->_ci->StudiengangModel->addSelect("FORMAT(
+			" . $this->_ci->StudiengangModel->escape($path_template) . ", 
+			gruppe
+		) AS path", false);
+		$this->_ci->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->_ci->StudiengangModel->addSelect('v.semester');
+		$this->_ci->StudiengangModel->addSelect('v.verband');
+		$this->_ci->StudiengangModel->addSelect('gruppe');
+		$this->_ci->StudiengangModel->addSelect($this->_ci->StudiengangModel->escape($studiengang_kz) . '::integer AS stg_kz', false);
+		$this->_ci->StudiengangModel->addSelect("ARRAY['link-strict', 'student-collection'] AS droplink");
+		
+		$this->_ci->StudiengangModel->addOrder('gruppe');
+
+		$where = [
+			'v.studiengang_kz' => $studiengang_kz,
+			'v.semester' => $semester,
+			'v.verband' => $verband,
+			'v.gruppe !=' => '',
+			'v.aktiv' => true
+		];
+
+		if ($orgform_kurzbz !== null && $semester) // NOTE(chris): on semester 0 show all?
+			$where['v.orgform_kurzbz'] = $orgform_kurzbz;
+
+		$result = $this->_ci->StudiengangModel->loadWhere($where);
+
+		return getData($result) ?: [];
+	}
+
+	public function orgform($path_template, $studiengang_kz)
+	{
+		$this->_ci->load->model('organisation/Studienordnung_model', 'StudienordnungModel');
+
+		$this->_ci->StudienordnungModel->addDistinct();
+		$this->_ci->StudienordnungModel->addSelect("FORMAT(
+			" . $this->_ci->StudienordnungModel->escape($path_template) . ", 
+			LOWER(p.orgform_kurzbz)
+		) AS path");
+		$this->_ci->StudienordnungModel->addSelect("p.orgform_kurzbz AS name");
+		$this->_ci->StudienordnungModel->addSelect("studiengang_kz AS stg_kz");
+
+		$this->_ci->StudienordnungModel->addJoin('lehre.tbl_studienplan p', 'studienordnung_id');
+
+		$result = $this->_ci->StudienordnungModel->loadWhere([
+			'aktiv' => true,
+			'studiengang_kz' => $studiengang_kz,
+			'p.orgform_kurzbz !=' => 'DDP'
+		]);
+
+
+		return getData($result) ?: [];
+	}
+
+	public function studiensemester($path_template, $studiengang_kz)
+	{
+		$number_displayed_past_studiensemester = null;
+		
+		$this->_ci->load->model('system/Variable_model', 'VariableModel');
+		
+		$result = $this->_ci->VariableModel->getVariables(getAuthUID(), ['number_displayed_past_studiensemester']);
+		if (isError($result))
+			return [];
+
+		$data = getData($result);
+		if ($data && isset($data['number_displayed_past_studiensemester'])) {
+			$number_displayed_past_studiensemester = $data['number_displayed_past_studiensemester'];
+		} else {
+			$this->_ci->load->config('stv');
+			$number_displayed_past_studiensemester = $this->_ci->config->item('number_displayed_past_studiensemester_default');
+		}
+
+		$this->_ci->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+
+		$this->_ci->StudiensemesterModel->addPlusMinus(null, $number_displayed_past_studiensemester);
+		
+		$this->_ci->StudiensemesterModel->addSelect("studiensemester_kurzbz AS name");
+		$this->_ci->StudiensemesterModel->addSelect("FORMAT(
+			" . $this->_ci->StudiensemesterModel->escape($path_template) . ", 
+			LOWER(studiensemester_kurzbz)
+		) AS path", false);
+		$this->_ci->StudiensemesterModel->addSelect($this->_ci->StudiensemesterModel->escape($studiengang_kz) . " AS stg_kz", false);
+		
+		$this->_ci->StudiensemesterModel->addOrder('ende');
+
+		$result = $this->_ci->StudiensemesterModel->load();
+
+		return getData($result) ?: [];
+	}
+}
@@ -13,6 +13,7 @@ class Gehaltsbestandteil extends AbstractBestandteil implements \JsonSerializabl
 	protected $dienstverhaeltnis_id;
 	protected $vertragsbestandteil_id;
 	protected $gehaltstyp_kurzbz;
+	protected $gehaltsanpassungtyp_kurzbz = '';
 	protected $von;
    protected $bis;
 	protected $anmerkung;
@@ -21,6 +22,7 @@ class Gehaltsbestandteil extends AbstractBestandteil implements \JsonSerializabl
 	protected $valorisierungssperre;
 	protected $valorisierung;
 	protected $auszahlungen;
+	protected $gehaltstyp_bezeichnung;
 	
 	protected $insertamum;
 	protected $insertvon;
@@ -39,6 +41,10 @@ class Gehaltsbestandteil extends AbstractBestandteil implements \JsonSerializabl
 		isset($data->dienstverhaeltnis_id) && $this->setDienstverhaeltnis_id($data->dienstverhaeltnis_id);
 		isset($data->vertragsbestandteil_id) && $this->setVertragsbestandteil_id($data->vertragsbestandteil_id);
 		isset($data->gehaltstyp_kurzbz) && $this->setGehaltstyp_kurzbz($data->gehaltstyp_kurzbz);
+		//isset($data->gehaltsanpassungtyp_kurzbz) && $this->setGehaltsanpassungtyp_kurzbz($data->gehaltsanpassungtyp_kurzbz);
+		if (!empty($data->gehaltsanpassungtyp_kurzbz)) {
+			$this->setGehaltsanpassungtyp_kurzbz($data->gehaltsanpassungtyp_kurzbz);
+		}
 		isset($data->von) && $this->setVon($data->von);
 		isset($data->bis) && $this->setBis($data->bis);
 		isset($data->anmerkung) && $this->setAnmerkung($data->anmerkung);
@@ -47,7 +53,8 @@ class Gehaltsbestandteil extends AbstractBestandteil implements \JsonSerializabl
 		isset($data->valorisierungssperre) && $this->setValorisierungssperre($data->valorisierungssperre);
 		isset($data->valorisierung) && $this->setValorisierung($data->valorisierung);
 		isset($data->auszahlungen) && $this->setAuszahlungen($data->auszahlungen);
-		
+		isset($data->gehaltstyp_bezeichnung) && $this->setGehaltstyp_bezeichnung($data->gehaltstyp_bezeichnung);
+
 		isset($data->insertamum) && $this->setInsertamum($data->insertamum);
 		isset($data->insertvon) && $this->setInsertvon($data->insertvon);
 		isset($data->updateamum) && $this->setUpdateamum($data->updateamum);
@@ -75,6 +82,11 @@ class Gehaltsbestandteil extends AbstractBestandteil implements \JsonSerializabl
 		return $this->gehaltstyp_kurzbz;
 	}

+	public function getGehaltsanpassungtyp_kurzbz()
+	{
+		return $this->gehaltsanpassungtyp_kurzbz;
+	}
+
 	public function getVon()
 	{
 		return $this->von;
@@ -178,6 +190,13 @@ class Gehaltsbestandteil extends AbstractBestandteil implements \JsonSerializabl
 		return $this;
 	}

+	public function setGehaltsanpassungtyp_kurzbz($gehaltsanpassungtyp_kurzbz)
+	{
+		$this->markDirty('gehaltsanpassungtyp_kurzbz', $this->gehaltsanpassungtyp_kurzbz, $gehaltsanpassungtyp_kurzbz);
+		$this->gehaltsanpassungtyp_kurzbz = $gehaltsanpassungtyp_kurzbz;
+		return $this;
+	}
+
 	public function setVon($von)
 	{
 		$this->markDirty('von', $this->von, $von);
@@ -206,6 +225,10 @@ class Gehaltsbestandteil extends AbstractBestandteil implements \JsonSerializabl
 		    $grundbetrag = number_format($grundbetrag, 2, '.', '');
 		}
 		$this->markDirty('grundbetrag', $this->grundbetrag, $grundbetrag);
+		if(in_array('grundbetrag', $this->modifiedcolumns))
+		{
+			$this->setBetrag_valorisiert($grundbetrag);
+		}
 		$this->grundbetrag = $grundbetrag;
 		return $this;
 	}
@@ -242,6 +265,13 @@ class Gehaltsbestandteil extends AbstractBestandteil implements \JsonSerializabl
 		return $this;
 	}

+	public function setGehaltstyp_bezeichnung($gehaltstyp_bezeichnung)
+	{
+		$this->markDirty('gehaltstyp_bezeichnung', $this->gehaltstyp_bezeichnung, $gehaltstyp_bezeichnung);
+		$this->gehaltstyp_bezeichnung = $gehaltstyp_bezeichnung;
+		return $this;
+	}
+
 	public function setInsertamum($insertamum)
 	{
 		$this->markDirty('insertamum', $this->insertamum, $insertamum);
@@ -284,6 +314,7 @@ class Gehaltsbestandteil extends AbstractBestandteil implements \JsonSerializabl
 			'dienstverhaeltnis_id' => $this->getDienstverhaeltnis_id(),
 			'vertragsbestandteil_id' => $this->getVertragsbestandteil_id(),
 			'gehaltstyp_kurzbz' => $this->getGehaltstyp_kurzbz(),
+			'gehaltsanpassungtyp_kurzbz' => $this->getGehaltsanpassungtyp_kurzbz(),
 			'von' => $this->getVon(),
 			'bis' => $this->getBis(),
 			'anmerkung' => $this->getAnmerkung(),
@@ -312,6 +343,7 @@ class Gehaltsbestandteil extends AbstractBestandteil implements \JsonSerializabl
 		dienstverhaeltnis_id: {$this->getDienstverhaeltnis_id()}
 		vertragsbestandteil_id: {$this->getVertragsbestandteil_id()}
 		gehaltstyp_kurzbz: {$this->getGehaltstyp_kurzbz()}
+		gehaltsanpassungtyp_kurzbz: {$this->getGehaltsanpassungtyp_kurzbz()}
 		von: {$this->getVon()}
 		bis: {$this->getBis()}
 		anmerkung: {$this->getAnmerkung()}
@@ -31,18 +31,20 @@ class Vertrag_model extends DB_Model
     */
 	public function save($person_id, $mitarbeiter_uid, $lehrveranstaltung_id, $lehreinheit_id, $projektarbeit_id = null, $vertragsstunden, $betrag, $studiensemester_kurzbz)
    {
-        $person_id = (isset($person_id) && is_numeric($person_id))
+		$vertragstyp_kurzbz = (is_null($projektarbeit_id)) ? 'Lehrauftrag' : 'Betreuung';
+        
+		$person_id = (isset($person_id) && is_numeric($person_id))
            ? $person_id
            : show_error('peron_id must be set and numeric.');
-        $lehreinheit_id = (isset($lehreinheit_id) && is_numeric($lehreinheit_id))
-            ? $lehreinheit_id
-            : show_error('lehreinheit_id must be set and numeric.');
        $lehrveranstaltung_id = (isset($lehrveranstaltung_id) && is_numeric($lehrveranstaltung_id))
            ? $lehrveranstaltung_id
            : show_error('lehrveranstaltung_id must be set and numeric.');
        $projektarbeit_id = (isset($projektarbeit_id) && is_numeric($projektarbeit_id))
            ? $projektarbeit_id
            : null;
+		$lehreinheit_id = (isset($lehreinheit_id) && is_numeric($lehreinheit_id))
+			? $lehreinheit_id
+			: (($vertragstyp_kurzbz == 'Betreuung') ? null : show_error('lehreinheit_id must be set and numeric.'));
        $vertragsstunden = (isset($vertragsstunden) && is_numeric($vertragsstunden))
            ? $vertragsstunden
            : 0;
@@ -53,7 +55,7 @@ class Vertrag_model extends DB_Model
            ? $mitarbeiter_uid
            : show_error('mitarbeiter_uid must be set and a string value.');;

-        $vertragstyp_kurzbz = (is_null($projektarbeit_id)) ? 'Lehrauftrag' : 'Betreuung';
+        

        // First check if Vertrag already exists for that Lehrauftrag or for that Projektbetreuerauftrag
        if ($vertragstyp_kurzbz == 'Lehrauftrag')
@@ -257,7 +259,7 @@ class Vertrag_model extends DB_Model
        }
        elseif ($vertragstyp_kurzbz == 'Betreuung')
        {
-            $this->addSelect('lehreinheit_id');
+            $this->addSelect('lehreinheit_id, lehre.tbl_projektarbeit.lehrveranstaltung_id, lehre.tbl_projektarbeit.studiensemester_kurzbz');
            $this->addJoin('lehre.tbl_projektbetreuer', 'vertrag_id');
            $this->addJoin('lehre.tbl_projektarbeit', 'projektarbeit_id');
            if ($result = $this->loadWhere(array('vertrag_id' => $vertrag_id)))
@@ -281,17 +283,22 @@ class Vertrag_model extends DB_Model
    {
        if ($result = getData($this->getLehreinheitID($vertrag_id)))
        {
-            $this->load->model('education/Lehreinheit_model', 'LehreinheitModel');
-            $this->LehreinheitModel->addSelect($select);
+            if (!empty($result[0]->lehreinheit_id))
+            {
+                $this->load->model('education/Lehreinheit_model', 'LehreinheitModel');
+                $this->LehreinheitModel->addSelect($select);

-            if($result = $this->LehreinheitModel->load($result[0]->lehreinheit_id))
-            {
-                return success($result->retval);
-            }
-            else
-            {
-                return error('Fehler beim Laden der Lehreinheit');
+                if ($result = $this->LehreinheitModel->load($result[0]->lehreinheit_id))
+                {
+                    return success($result->retval);
+                }
+                else
+                {
+                    return error('Fehler beim Laden der Lehreinheit');
+                }
            }
+
+            return success($result);
        }
        else
        {
@@ -563,14 +570,13 @@ SELECT
 			null::integer as pruefung_id,
 			projektarbeit_id,
 			(tbl_projektbetreuer.stunden*tbl_projektbetreuer.stundensatz) as betrag1,
-			tbl_lehreinheit.studiensemester_kurzbz,
+			tbl_projektarbeit.studiensemester_kurzbz,
 			tbl_projektbetreuer.betreuerart_kurzbz,
 			(SELECT nachname || ' ' || vorname FROM public.tbl_person JOIN public.tbl_benutzer USING(person_id) WHERE uid=tbl_projektarbeit.student_uid)
 			as bezeichnung
 		FROM
 			lehre.tbl_projektbetreuer
 			JOIN lehre.tbl_projektarbeit USING(projektarbeit_id)
-			JOIN lehre.tbl_lehreinheit USING(lehreinheit_id)
 		WHERE
 			tbl_projektbetreuer.person_id=?
 			AND vertrag_id IS NULL
@@ -619,14 +625,13 @@ SELECT
 			null::integer as pruefung_id,
 			projektarbeit_id,
 			(tbl_projektbetreuer.stunden * tbl_projektbetreuer.stundensatz) as betrag,
-			tbl_lehreinheit.studiensemester_kurzbz,
+			tbl_projektarbeit.studiensemester_kurzbz,
 			tbl_projektbetreuer.betreuerart_kurzbz,
 			(SELECT nachname || ' ' || vorname FROM public.tbl_person JOIN public.tbl_benutzer USING(person_id) WHERE uid=tbl_projektarbeit.student_uid)
 			as bezeichnung, vertrag_id
 		FROM
 			lehre.tbl_projektbetreuer
 			JOIN lehre.tbl_projektarbeit USING(projektarbeit_id)
-			JOIN lehre.tbl_lehreinheit USING(lehreinheit_id)
 		WHERE
 			tbl_projektbetreuer.person_id=?
 			AND vertrag_id = ?
@@ -44,4 +44,110 @@ class Bisio_model extends DB_Model
 		else
 			return success("Bisio not found");
 	}
+
+	/**
+	 * Gets outgoing students of certain Semester
+	 * @param String studiensemester_kurzbz
+	 * @return array of prestudent_ids
+	 */
+	public function getOutgoingsOfSemester($studiensemester_kurzbz)
+	{
+		$query = "
+			SELECT DISTINCT ps.prestudent_id, tbl_bisio.von, tbl_bisio.bis
+			FROM bis.tbl_bisio
+			JOIN public.tbl_student USING (student_uid)
+			JOIN public.tbl_prestudent ps USING (prestudent_id)
+			JOIN public.tbl_prestudentstatus pss ON (ps.prestudent_id = pss.prestudent_id)
+			JOIN public.tbl_studiensemester ss ON (pss.studiensemester_kurzbz = ss.studiensemester_kurzbz)
+			WHERE ss.studiensemester_kurzbz = ?
+			AND nation_code <> 'A'
+			AND (
+			  tbl_bisio.von <= ss.ende
+			  AND (
+				tbl_bisio.bis >= ss.start
+				OR tbl_bisio.bis IS NULL
+			  )
+			)
+		";
+
+		return $this->execQuery($query, array($studiensemester_kurzbz));
+	}
+
+	/**
+	 * Gets incoming students of certain Semester
+	 * @param String studiensemester_kurzbz
+	 * @return array of prestudent_ids
+	 */
+	public function getIncomingsOfSemester($studiensemester_kurzbz)
+	{
+		$query = "
+			SELECT DISTINCT ps.prestudent_id, tbl_bisio.von, tbl_bisio.bis
+			FROM bis.tbl_bisio
+			JOIN public.tbl_student USING (student_uid)
+			JOIN public.tbl_prestudent ps USING (prestudent_id)
+			JOIN public.tbl_prestudentstatus pss ON (ps.prestudent_id = pss.prestudent_id)
+			JOIN public.tbl_studiensemester ss ON (pss.studiensemester_kurzbz = ss.studiensemester_kurzbz)
+			WHERE ss.studiensemester_kurzbz = ?
+			AND nation_code = 'A'
+			AND (
+			  tbl_bisio.von <= ss.ende
+			  AND (
+				tbl_bisio.bis >= ss.start
+				OR tbl_bisio.bis IS NULL
+			  )
+			)
+		";
+
+		return $this->execQuery($query, array($studiensemester_kurzbz));
+	}
+
+	public function isPrestudentOutgoing($studiensemester_kurzbz, $prestudent_id)
+	{
+		$query = "
+			SELECT
+				ps.prestudent_id, tbl_bisio.von, tbl_bisio.bis
+			FROM bis.tbl_bisio
+			JOIN public.tbl_student USING (student_uid)
+			JOIN public.tbl_prestudent ps USING (prestudent_id)
+			JOIN public.tbl_prestudentstatus pss ON (ps.prestudent_id = pss.prestudent_id)
+			JOIN public.tbl_studiensemester ss ON (pss.studiensemester_kurzbz = ss.studiensemester_kurzbz)
+			WHERE ss.studiensemester_kurzbz = ?
+			AND nation_code <> 'A'
+			AND (
+			  tbl_bisio.von <= ss.ende
+			  AND (
+				tbl_bisio.bis >= ss.start
+				OR tbl_bisio.bis IS NULL
+			  )
+			)
+			AND ps.prestudent_id = ?
+		";
+
+		return $this->execQuery($query, array($studiensemester_kurzbz, $prestudent_id));
+	}
+
+	public function isPrestudentIncoming($studiensemester_kurzbz, $prestudent_id)
+	{
+		$query = "
+			SELECT
+				ps.prestudent_id, tbl_bisio.von, tbl_bisio.bis
+			FROM bis.tbl_bisio
+			JOIN public.tbl_student USING (student_uid)
+			JOIN public.tbl_prestudent ps USING (prestudent_id)
+			JOIN public.tbl_prestudentstatus pss ON (ps.prestudent_id = pss.prestudent_id)
+			JOIN public.tbl_studiensemester ss ON (pss.studiensemester_kurzbz = ss.studiensemester_kurzbz)
+			WHERE ss.studiensemester_kurzbz = ?
+			AND nation_code = 'A'
+			AND (
+			  tbl_bisio.von <= ss.ende
+			  AND (
+				tbl_bisio.bis >= ss.start
+				OR tbl_bisio.bis IS NULL
+			  )
+			)
+			AND ps.prestudent_id = ?
+		";
+
+		return $this->execQuery($query, array($studiensemester_kurzbz, $prestudent_id));
+	}
 }
@@ -57,7 +57,7 @@ class Dokument_model extends DB_Model

 		$qry = " SELECT
 				  a.akte_id,
-				  a.bezeichnung,
+				  dok.bezeichnung,
 				  a.dokument_kurzbz,
 				  a.titel_intern,
 				  a.anmerkung_intern,
@@ -83,6 +83,7 @@ class Dokument_model extends DB_Model
 				  inhalt
 				FROM
 				  public.tbl_akte a
+				  JOIN public.tbl_dokument dok ON (dok.dokument_kurzbz = a.dokument_kurzbz)
 				WHERE
 				  a.person_id = ?
 				  AND a.dokument_kurzbz NOT IN (
@@ -177,7 +177,7 @@ class Prestudentstatus_model extends DB_Model
 	 * @param prestudent_id ID of the Prestudent.
 	 * @param $status_kurzbz kurzbz of the status.
 	 * @param $ausbildungssemester ausbildungssemester of the status.
-	 * @param $studiensemester_kurzbz studiensemster of the status.
+	 * @param $studiensemester_kurzbz studiensemester of the status.
 	 *
 	 * @return result object with all the status entries
 	 */
@@ -204,7 +204,7 @@ class Student_model extends DB_Model

 		Events::trigger(
 			'generate_student_uid',
-			function ($value) use ($uid) {
+			function ($value) use (&$uid) {
 				$uid = $value;
 			},
 			$stgkzl,
@@ -719,7 +719,7 @@ EOSQL;
 		return "tag_data_agg AS (
 					SELECT
 						lehreinheit_id,
-						COALESCE(json_agg(tag ORDER BY done), '[]'::json) AS tags
+						COALESCE(json_agg(tag ORDER BY done, prioritaet), '[]'::json) AS tags
 					FROM (
 							SELECT DISTINCT ON (public.tbl_notiz.notiz_id)
 								tbl_notiz.notiz_id AS id,
@@ -728,7 +728,9 @@ EOSQL;
 								text AS notiz,
 								style,
 								erledigt AS done,
-								lehreinheit_id
+								lehreinheit_id,
+								prioritaet,
+								automatisiert
 							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
@@ -341,7 +341,7 @@ class Lehreinheitgruppe_model extends DB_Model
 		$this->db->where('lehreinheit_id', $lehreinheit_id);
 		$this->db->where('studiengang_kz', $gruppen_array->studiengang_kz);

-		if (!isEmptyString($gruppen_array->semester))
+		if (!isEmptyString((string)$gruppen_array->semester))
 		{
 			$this->db->where('semester', $gruppen_array->semester);
 		}
@@ -444,30 +444,37 @@ class Lehreinheitgruppe_model extends DB_Model
 										) 
 									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 
+		$this->addSelect("
+									CASE
+										WHEN trim(COALESCE(tbl_lehreinheitgruppe.gruppe_kurzbz, '')) = '' THEN
 										(
 											SELECT EXISTS (
 												SELECT 1
-												FROM lehre.tbl_stundenplandev
-												WHERE lehreinheit_id = tbl_lehreinheitgruppe.lehreinheit_id
-													AND gruppe_kurzbz = tbl_lehreinheitgruppe.gruppe_kurzbz
+												FROM lehre.tbl_stundenplandev sp
+												WHERE sp.lehreinheit_id = tbl_lehreinheitgruppe.lehreinheit_id
+													AND sp.studiengang_kz = tbl_lehreinheitgruppe.studiengang_kz
+													AND sp.semester = tbl_lehreinheitgruppe.semester
+													AND trim(COALESCE(sp.verband, '')) = trim(COALESCE(tbl_lehreinheitgruppe.verband, ''))
+													AND trim(COALESCE(sp.gruppe, ''))  = trim(COALESCE(tbl_lehreinheitgruppe.gruppe, ''))
+													AND trim(COALESCE(sp.gruppe_kurzbz, '')) = ''
 											)
 										)
-								END AS verplant");
+									ELSE
+										(
+											SELECT EXISTS (
+												SELECT 1
+												FROM lehre.tbl_stundenplandev sp
+												WHERE sp.lehreinheit_id = tbl_lehreinheitgruppe.lehreinheit_id
+													AND sp.studiengang_kz = tbl_lehreinheitgruppe.studiengang_kz
+													AND sp.semester = tbl_lehreinheitgruppe.semester
+													AND trim(COALESCE(sp.verband, '')) = trim(COALESCE(tbl_lehreinheitgruppe.verband, ''))
+													AND trim(COALESCE(sp.gruppe, ''))  = trim(COALESCE(tbl_lehreinheitgruppe.gruppe, ''))
+													AND trim(COALESCE(sp.gruppe_kurzbz, '')) = trim(COALESCE(tbl_lehreinheitgruppe.gruppe_kurzbz, ''))
+											)
+										)
+										END AS verplant
+									");
+
 		$this->addJoin('tbl_studiengang', 'studiengang_kz', 'LEFT');
 		$this->addJoin('public.tbl_gruppe', 'gruppe_kurzbz', 'LEFT');

@@ -85,9 +85,18 @@ class Lehreinheitmitarbeiter_model extends DB_Model

 	public function getLektorenByLe($lehreinheit_id)
 	{
-		$this->addSelect('vorname, nachname, tbl_lehreinheitmitarbeiter.*, stundenplan.verplant');
+		$this->addSelect('tbl_person.vorname, tbl_person.nachname, tbl_lehreinheitmitarbeiter.*, stundenplan.verplant, 
+		COALESCE(insertvonperson.vorname || \' \' || insertvonperson.nachname, tbl_lehreinheitmitarbeiter.insertvon) as insertvon,
+		COALESCE(updatevonperson.vorname || \' \' || updatevonperson.nachname, tbl_lehreinheitmitarbeiter.updatevon) as updatevon');
 		$this->addJoin('tbl_benutzer', 'uid = mitarbeiter_uid');
 		$this->addJoin('tbl_person', 'person_id');
+		$this->addJoin('tbl_benutzer insertvonbenutzer', 'insertvonbenutzer.uid = tbl_lehreinheitmitarbeiter.insertvon', 'LEFT');
+		$this->addJoin('tbl_person insertvonperson', 'insertvonperson.person_id = insertvonbenutzer.person_id', 'LEFT');
+
+		$this->addJoin('tbl_benutzer updatevonbenutzer', 'updatevonbenutzer.uid = tbl_lehreinheitmitarbeiter.updatevon', 'LEFT');
+		$this->addJoin('tbl_person updatevonperson', 'updatevonperson.person_id = updatevonbenutzer.person_id', 'LEFT');
+
+

 		$this->addJoin('(
 			SELECT 1 as verplant, lehreinheit_id, mitarbeiter_uid
@@ -1245,7 +1245,7 @@ class Lehrveranstaltung_model extends DB_Model
 	{
 		return "
 		SELECT
-				lehrveranstaltung_id, tbl_lehrveranstaltung.kurzbz as lv_kurzbz, tbl_lehrveranstaltung.bezeichnung as lv_bezeichnung, bezeichnung_english as lv_bezeichnung_english, studiengang_kz,
+				distinct on (lehrveranstaltung_id) 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,
@@ -1263,6 +1263,39 @@ class Lehrveranstaltung_model extends DB_Model
 		";
 	}

+	/**
+	 * Gets lehrveranstaltungen of Studienplan of a certain lva_id set
+	 * used if a bigger set of lva id is already available and it needs to be checked against a certain studienplan aswell
+	 * @param $studienplan_id ID des Studienplans
+	 * @param $lva_ids LVA_ID welche abgegleicht werden sollen
+	 * @return array|null
+	 */
+	public function getLvsByStudienplanByLvaIDs($studienplan_id, $lva_ids)
+	{
+		$params = array($studienplan_id, $lva_ids);
+
+		$qry = "SELECT tbl_lehrveranstaltung.*,
+			tbl_studienplan_lehrveranstaltung.studienplan_lehrveranstaltung_id,
+			tbl_studienplan_lehrveranstaltung.semester as stpllv_semester,
+			tbl_studienplan_lehrveranstaltung.pflicht as stpllv_pflicht,
+			tbl_studienplan_lehrveranstaltung.koordinator as stpllv_koordinator,
+			tbl_studienplan_lehrveranstaltung.studienplan_lehrveranstaltung_id_parent,
+			tbl_studienplan_lehrveranstaltung.sort stpllv_sort,
+			tbl_studienplan_lehrveranstaltung.curriculum,
+			tbl_studienplan_lehrveranstaltung.export,
+			tbl_studienplan_lehrveranstaltung.genehmigung
+		FROM lehre.tbl_lehrveranstaltung
+		JOIN lehre.tbl_studienplan_lehrveranstaltung
+		USING(lehrveranstaltung_id)
+		WHERE tbl_studienplan_lehrveranstaltung.studienplan_id = ? 
+			AND tbl_studienplan_lehrveranstaltung.lehrveranstaltung_id IN ?
+		";
+
+		$qry .= " ORDER BY stpllv_sort, semester, sort";
+
+		return $this->execQuery($qry, $params);
+	}
+
 	public function getAllOe($lv_id)
 	{
 		$qry = "SELECT DISTINCT oe_kurzbz
@@ -29,10 +29,14 @@ class Lvgesamtnote_model extends DB_Model
 		$this->addSelect("lv.bezeichnung AS lehrveranstaltung_bezeichnung");
 		$this->addSelect("lv.studiengang_kz");
 		$this->addSelect("UPPER(stg.typ || stg.kurzbz) AS studiengang");
+		$this->addSelect("person.vorname");
+		$this->addSelect("person.nachname");

 		$this->addJoin("lehre.tbl_note n", "note");
 		$this->addJoin("lehre.tbl_lehrveranstaltung lv", "lehrveranstaltung_id");
 		$this->addJoin("public.tbl_studiengang stg", "studiengang_kz");
+		$this->addJoin("public.tbl_benutzer benutzer", "uid = student_uid", "LEFT");
+		$this->addJoin("public.tbl_person person", "person_id", "LEFT");

 		$this->db->where($this->dbTable . ".freigabedatum <", "NOW()", false);

@@ -50,8 +50,7 @@ class Paabgabe_model extends DB_Model
 					JOIN lehre.tbl_projektbetreuer USING(projektarbeit_id)
 					JOIN public.tbl_benutzer bn_student ON(tbl_projektarbeit.student_uid=bn_student.uid)
 					JOIN public.tbl_person person_student ON(bn_student.person_id=person_student.person_id)
-					JOIN lehre.tbl_lehreinheit ON(tbl_projektarbeit.lehreinheit_id=tbl_lehreinheit.lehreinheit_id)
-					JOIN lehre.tbl_lehrveranstaltung ON(tbl_lehreinheit.lehrveranstaltung_id=tbl_lehrveranstaltung.lehrveranstaltung_id)
+					JOIN lehre.tbl_lehrveranstaltung USING(lehrveranstaltung_id)
 					JOIN public.tbl_studiengang ON(tbl_lehrveranstaltung.studiengang_kz=tbl_studiengang.studiengang_kz)
 					JOIN campus.tbl_paabgabetyp USING(paabgabetyp_kurzbz)
 				WHERE
@@ -66,16 +65,16 @@ class Paabgabe_model extends DB_Model

 		$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,
+			   campus.tbl_paabgabe.note, upload_allowed, beurteilungsnotiz, student_uid,
+			   lehre.tbl_projektarbeit.note as 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_studiengang.oe_kurzbz as stg_oe_kurzbz, tbl_projektarbeit.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 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)
 		
@@ -91,9 +90,10 @@ class Paabgabe_model extends DB_Model
 		$queryParams = [$interval];
 		$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,
+					   campus.tbl_paabgabe.note, upload_allowed, beurteilungsnotiz, student_uid,
+					   lehre.tbl_projektarbeit.note as 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_studiengang.oe_kurzbz as stg_oe_kurzbz, tbl_projektarbeit.studiensemester_kurzbz,
 					   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
 				
@@ -101,8 +101,7 @@ class Paabgabe_model extends DB_Model
 						 JOIN campus.tbl_paabgabetyp USING (paabgabetyp_kurzbz)
 						 JOIN lehre.tbl_projektarbeit USING (projektarbeit_id)
 						 JOIN lehre.tbl_projektbetreuer USING (projektarbeit_id)
-						 JOIN lehre.tbl_lehreinheit using(lehreinheit_id)
-						 JOIN lehre.tbl_lehrveranstaltung using(lehrveranstaltung_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 ON (public.tbl_benutzer.person_id = public.tbl_person.person_id)
@@ -25,7 +25,7 @@ class Projektarbeit_model extends DB_Model
 	{
 		$qry = "SELECT
 					pa.*, tbl_projekttyp.bezeichnung,
-					tbl_lehreinheit.studiensemester_kurzbz, tbl_lehrveranstaltung.lehrveranstaltung_id,
+					pa.studiensemester_kurzbz, pa.lehrveranstaltung_id,
 					tbl_firma.name AS firma_name,
 					(
 						SELECT
@@ -41,7 +41,6 @@ class Projektarbeit_model extends DB_Model
 				FROM
 					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
@@ -57,7 +56,7 @@ class Projektarbeit_model extends DB_Model

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

@@ -134,7 +133,7 @@ class Projektarbeit_model extends DB_Model
 			projektarbeit_id,
 			lehre.tbl_projekttyp.bezeichnung as projekttypbezeichnung,
 			lehre.tbl_projekttyp.projekttyp_kurzbz as projekttypkurzbz,
-			lehre.tbl_lehreinheit.studiensemester_kurzbz,
+			lehre.tbl_projektarbeit.studiensemester_kurzbz,
 			lehre.tbl_lehrveranstaltung.studiengang_kz,
 			public.tbl_studiengang.kurzbzlang,
 			lehre.tbl_projektarbeit.note as note,
@@ -157,7 +156,6 @@ 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)
@@ -366,7 +364,7 @@ class Projektarbeit_model extends DB_Model
 					tbl_studiengang.typ, tbl_studiengang.kurzbz,
 					tbl_projektarbeit.projekttyp_kurzbz, tbl_projekttyp.bezeichnung, 
 					tbl_projektarbeit.titel, tbl_projektarbeit.projektarbeit_id, tbl_projektarbeit.note,
-					student_benutzer.uid, tbl_student.matrikelnr, tbl_lehreinheit.studiensemester_kurzbz, public.tbl_student.student_uid,
+					student_benutzer.uid, tbl_student.matrikelnr, tbl_projektarbeit.studiensemester_kurzbz, public.tbl_student.student_uid,
 		
 					lehre.tbl_projektarbeit.sprache,
 					 lehre.tbl_projektarbeit.seitenanzahl,
@@ -430,7 +428,6 @@ class Projektarbeit_model extends DB_Model
 					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)
@@ -503,7 +500,7 @@ class Projektarbeit_model extends DB_Model
 				 student_person.vorname                       AS student_vorname,
 				 student_person.nachname                      AS student_nachname,
 				 public.tbl_student.matrikelnr,
-				 tbl_lehreinheit.studiensemester_kurzbz,
+				 tbl_projektarbeit.studiensemester_kurzbz,
 				 betreuer_benutzer.uid                        AS betreuer_benutzer_uid,
 				 betreuer_person.titelpre                     AS betreuer_titelpre,
 				 betreuer_person.vorname                      AS betreuer_vorname,
@@ -565,7 +562,6 @@ class Projektarbeit_model extends DB_Model
 				  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)
@@ -633,7 +629,7 @@ class Projektarbeit_model extends DB_Model
 				 student_person.vorname                       AS student_vorname,
 				 student_person.nachname                      AS student_nachname,
 				 public.tbl_student.matrikelnr,
-				 tbl_lehreinheit.studiensemester_kurzbz,
+				 tbl_projektarbeit.studiensemester_kurzbz,
 				 betreuer_benutzer.uid                        AS betreuer_benutzer_uid,
 				 betreuer_person.titelpre                     AS betreuer_titelpre,
 				 betreuer_person.vorname                      AS betreuer_vorname,
@@ -695,7 +691,6 @@ class Projektarbeit_model extends DB_Model
 				  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)
@@ -269,4 +269,37 @@ class Projektbetreuer_model extends DB_Model
 		return $this->execQuery($qry, array($projektarbeit_id));
 	}

+	/**
+	 * Gets anrede, name and mail address of a Betreuer by person_id.
+	 * Same account preference as getAllBetreuerOfProjektarbeit, but not bound to a single Projektarbeit.
+	 * @param int $person_id
+	 * @return array success with one row or error
+	 */
+	public function getBetreuerByPersonId($person_id)
+	{
+		$qry = "SELECT DISTINCT ON (pers.person_id) pers.person_id, anrede,
+				trim(COALESCE(titelpre,'')||' '||COALESCE(vorname,'')||' '||COALESCE(nachname,'')||' '||COALESCE(titelpost,'')) as first,
+				ben.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 public.tbl_person pers
+				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 pers.person_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 $this->execReadOnlyQuery($qry, array($person_id));
+	}
+
 }
@@ -188,6 +188,7 @@ class Studierendenantrag_model extends DB_Model
 	 * Get the studiengang and ausbildungssemester the student was in
 	 * for the studiensemester the antrag was committed for
 	 *
+	 *
 	 * @param integer		$antrag_id
 	 *
 	 * @return stdClass
@@ -242,6 +243,28 @@ class Studierendenantrag_model extends DB_Model
 		);
 	}

+	/**
+	 * Get the studiengang and the studienplan the student is in
+	 *
+	 * @param integer		$antrag_id
+	 *
+	 * @return stdClass
+	 */
+	public function getStgAndDetails($antrag_id)
+	{
+		$this->addSelect('p.studiengang_kz');
+		$this->addSelect('stg.orgform_kurzbz');
+		$this->addSelect('stg.bezeichnung');
+		$this->addJoin('public.tbl_prestudent p', 'prestudent_id');
+		$this->addJoin('public.tbl_studiengang stg', 'studiengang_kz');
+
+		$this->addLimit(1);
+
+		return $this->load(
+			$antrag_id
+		);
+	}
+
 	public function getStgEmail($antrag_id)
 	{
 		$this->addJoin('public.tbl_prestudent p', 'prestudent_id');
@@ -148,7 +148,7 @@ class Zeugnisnote_model extends DB_Model
 	 *
 	 * @return object
 	 */
-	public function getZeugnisnoten($student_uid, $studiensemester_kurzbz)
+	public function getZeugnisnoten($student_uid, $studiensemester_kurzbz, $lehrveranstaltung_id = null)
 	{
 		$params = array();
 		$where='';
@@ -163,6 +163,11 @@ class Zeugnisnote_model extends DB_Model
 			$where.=" AND vw_student_lehrveranstaltung.studiensemester_kurzbz= ?";
 			$params[] = $studiensemester_kurzbz;
 		}
+		if($lehrveranstaltung_id != null)
+		{
+			$where .= " AND vw_student_lehrveranstaltung.lehrveranstaltung_id = ?";
+			$params[] = $lehrveranstaltung_id;
+		}

 		$where2='';

@@ -176,6 +181,11 @@ class Zeugnisnote_model extends DB_Model
 			$where2 .= " AND studiensemester_kurzbz= ?";
 			$params[] = $studiensemester_kurzbz;
 		}
+		if($lehrveranstaltung_id != null)
+		{
+			$where2 .=" AND lehrveranstaltung_id = ?";
+			$params[] = $lehrveranstaltung_id;
+		}

 		$qry = "SELECT
 			a.*,
@@ -188,7 +198,10 @@ class Zeugnisnote_model extends DB_Model
 			lv.semester AS semester_lv,
 			lv.ects AS ects_lv,
 			lv.zeugnis,
-			lv.bezeichnung_english AS lehrveranstaltung_bezeichnung_english
+			lv.bezeichnung_english AS lehrveranstaltung_bezeichnung_english,
+			s.verband,
+			person.vorname,
+			person.nachname
 		FROM (
 			SELECT vw_student_lehrveranstaltung.lehrveranstaltung_id, uid,
 				   vw_student_lehrveranstaltung.studiensemester_kurzbz, note, punkte, uebernahmedatum, benotungsdatum,
@@ -231,6 +244,8 @@ class Zeugnisnote_model extends DB_Model
 			ORDER BY sort
 		) a
 		LEFT JOIN public.tbl_student s ON (a.uid = s.student_uid)
+		LEFT JOIN public.tbl_benutzer benutzer ON benutzer.uid = s.student_uid
+		LEFT JOIN public.tbl_person person ON benutzer.person_id = person.person_id
 		LEFT JOIN public.tbl_studiengang stg1 ON (s.studiengang_kz = stg1.studiengang_kz)
 		LEFT JOIN lehre.tbl_lehrveranstaltung lv USING (lehrveranstaltung_id)
 		LEFT JOIN public.tbl_studiengang stg2 ON (lv.studiengang_kz = stg2.studiengang_kz)";
@@ -457,6 +457,7 @@ class Studiengang_model extends DB_Model
 	 */
 	public function getLeitung($studiengang_kz = null)
 	{
+		$this->addDistinct();
 		$this->addSelect('uid, studiengang_kz, oe_kurzbz, vorname, nachname, email, titelpre, titelpost, alias');
 		$this->addJoin('public.tbl_benutzerfunktion', 'oe_kurzbz');
 		$this->addJoin('public.tbl_benutzer', 'uid');
@@ -218,7 +218,7 @@ class Studiensemester_model extends DB_Model
 	 */
 	public function getByDate($date)
 	{
-		// gets the studiensemster of a date or the next closest previous studiensemester if a date is not within a studiensemester
+		// gets the studiensemester of a date or the next closest previous studiensemester if a date is not within a studiensemester
 		$query = "
 			SELECT  studiensemester_kurzbz, start, ende
 			FROM	public.tbl_studiensemester
@@ -229,6 +229,82 @@ class Studiensemester_model extends DB_Model
 		return $this->execQuery($query, array($date,$date,$date,$date));
 	}

+	/**
+	 * Gets all Studiensemester where the range dates are contained
+	 * or the nearest if date is not contained
+	 * @param $from
+	 * @param $to
+	 * @return array|null
+	 */
+	public function getContainingOrNearestByDateRange($from, $to)
+	{
+		if (date_format(date_create($from), 'Y-m-d') > (date_format(date_create($to), 'Y-m-d')))
+			return success(array());
+
+		$query = <<<EOSQL
+			WITH semester_interval_startdate AS (
+				SELECT
+					s.*
+				FROM
+					public.tbl_studiensemester s
+				WHERE
+					{$this->db->escape($from)}::date BETWEEN s.start AND s.ende
+				ORDER BY
+					s.start DESC
+				LIMIT 1
+			),
+			semester_interval_enddate AS (
+				SELECT
+					s.*
+				FROM
+					public.tbl_studiensemester s
+				WHERE
+					{$this->db->escape($to)}::date BETWEEN s.start AND s.ende
+				ORDER BY
+					s.start DESC
+				LIMIT 1
+			),
+			nearest_semester_interval_startdate AS (
+				SELECT
+					LEAST(ABS(s.start - {$this->db->escape($from)}::date), ABS(s.ende - {$this->db->escape($from)}::date)) AS mindiff,
+					s.*
+				FROM
+					public.tbl_studiensemester s
+				WHERE
+					s.ende < {$this->db->escape($from)}::date
+				ORDER BY
+					1 ASC
+				LIMIT 1
+			),
+			nearest_semester_interval_enddate AS (
+				SELECT
+					LEAST(ABS(s.start - {$this->db->escape($to)}::date), ABS(s.ende - {$this->db->escape($to)}::date)) AS mindiff,
+					s.*
+				FROM
+					public.tbl_studiensemester s
+				WHERE
+					s.start > {$this->db->escape($to)}::date
+				ORDER BY
+					1 ASC
+				LIMIT 1
+			)
+			SELECT
+				COALESCE(
+					(SELECT studiensemester_kurzbz FROM semester_interval_startdate),
+					(SELECT studiensemester_kurzbz FROM nearest_semester_interval_startdate)
+				) AS studiensemester_kurzbz
+			UNION
+			SELECT
+				COALESCE(
+					(SELECT studiensemester_kurzbz FROM semester_interval_enddate),
+					(SELECT studiensemester_kurzbz FROM nearest_semester_interval_enddate)
+				) AS studiensemester_kurzbz
+
+EOSQL;
+
+		return $this->execReadonlyQuery($query);
+	}
+
 	/**
 	 * Gets all Studiensemester between two dates
 	 * @param $from
@@ -348,5 +348,64 @@ class Benutzerfunktion_model extends DB_Model
        return success($funktionJson);
    }

+	/**
+	 * Gets all Prestudents with details for a given Benutzerfunktion and optionally semester
+	 *
+	 * @param String	$studiensemester_kurzbz
+	 * @return object |null
+	 */
+	public function getPrestudentsOfJgv($semester)
+	{
+		$query = "
+			SELECT DISTINCT ps.prestudent_id, bf.datum_von, bf.datum_bis
+			FROM public.tbl_benutzerfunktion bf
+			JOIN public.tbl_benutzer bn USING (uid)
+			JOIN public.tbl_prestudent ps USING (person_id)
+			JOIN public.tbl_prestudentstatus pss ON (ps.prestudent_id = pss.prestudent_id)
+			JOIN public.tbl_studiensemester ss ON (pss.studiensemester_kurzbz = ss.studiensemester_kurzbz)
+			WHERE ss.studiensemester_kurzbz = ?
+			AND bf.funktion_kurzbz = 'jgv'
+			AND (
+			  bf.datum_von <= ss.ende
+			  AND (
+				bf.datum_bis >= ss.start
+				OR bf.datum_bis IS NULL
+			  )
+			)
+		";
+
+		return $this->execQuery($query, array($semester));
+	}
+
+	/**
+	 * Checks if a certain prestudent has the Benutzerfunktion jgv for a certain semester
+	 *
+	 * @param String $studiensemester_kurzbz
+	 * @param $prestudent_id
+	 * @return object |null
+	 */
+	public function isJgv($semester, $prestudent_id)
+	{
+		$query = "
+			SELECT ps.prestudent_id, ss.start as von, ss.ende as bis
+			FROM public.tbl_benutzerfunktion bf
+			JOIN public.tbl_benutzer bn USING (uid)
+			JOIN public.tbl_prestudent ps USING (person_id)
+			JOIN public.tbl_prestudentstatus pss ON (ps.prestudent_id = pss.prestudent_id)
+			JOIN public.tbl_studiensemester ss ON (pss.studiensemester_kurzbz = ss.studiensemester_kurzbz)
+			WHERE ss.studiensemester_kurzbz = ?
+			AND bf.funktion_kurzbz = 'jgv'
+			AND (
+			  bf.datum_von <= ss.ende
+			  AND (
+				bf.datum_bis >= ss.start
+				OR bf.datum_bis IS NULL
+			  )
+			)
+			AND ps.prestudent_id = ?
+		";
+
+		return $this->execQuery($query, array($semester, $prestudent_id));
+	}

 }
@@ -296,4 +296,59 @@ class Notiz_model extends DB_Model
 		
 		return $this->loadWhere(array('anrechnung_id' => $anrechnung_id));
 	}
+
+	/**
+	 * check if a given Tag for a certain notizzuordnung id is valid
+	 *
+	 * @param $tag typ_kurzbz to check
+	 * @param $typeId typeId to check
+	 * @param $id id to check
+	 * @param $von start of time period or NULL
+	 * @param $bis end of time period or NULL
+ *
+	 * @return array
+	 */
+	public function checkIfExistingTag($tag, $typeId, $id, $von=null, $bis=null)
+	{
+		$query = "
+			SELECT *
+			FROM public.tbl_notiz
+			JOIN public.tbl_notizzuordnung nz USING (notiz_id)
+			WHERE typ = ?
+			AND {$typeId} = ?
+			AND (
+				start IS NULL
+				OR ende IS NULL
+				OR (start <= ? AND ende >= ?)
+			)
+		";
+
+		return $this->execQuery($query, [$tag, $id, $bis, $von]);
+	}
+
+	/**
+	 * returns all existing tags of a certain tag within a time period
+	 *
+	 * @param $tag typ_kurzbz of tag
+	 * @param $von start of time period or NULL
+	 * @param $bis end of time period or NULL
+	 *
+	 * @return array
+	 */
+	public function getAllTags($tag, $von=null, $bis=null)
+	{
+		$query = "
+			SELECT *
+			FROM public.tbl_notiz
+			JOIN public.tbl_notizzuordnung nz USING (notiz_id)
+			WHERE typ = ?
+			AND (
+				start IS NULL
+				OR ende IS NULL
+				OR (start <= ? AND ende >= ?)
+			);
+		";
+
+		return $this->execQuery($query, array($tag, $bis, $von));
+	}
 }
@@ -149,7 +149,7 @@ class Person_model extends DB_Model
 	 * @param $filter Term to search for.
 	 * @return DB-result
 	 */
-	public function searchPerson($filter)
+	public function searchPerson($filter, $mode=null)
 	{
 		$this->addSelect('vorname, nachname, gebdatum, person_id, titelpre, titelpost');
 		$this->addSelect("CASE
@@ -161,6 +161,26 @@ class Person_model extends DB_Model
 				THEN 'Student'
 				ELSE 'Person'
 			END AS status");
+
+		if($mode == 'mitMaUid')
+		{
+			$this->addSelect("(
+				SELECT m.mitarbeiter_uid
+				FROM public.tbl_benutzer b
+				JOIN public.tbl_mitarbeiter m
+					 ON b.uid = m.mitarbeiter_uid
+				WHERE b.person_id = tbl_person.person_id
+				LIMIT 1
+				)
+				AS uid");
+			$this->addOrder('uid, lower(nachname), lower(vorname)');
+		}
+		else
+		{
+			$this->addOrder('lower(nachname), lower(vorname)');
+		}
+
+
 		$result = $this->loadWhere(
 			'lower(nachname) like '.$this->db->escape('%'.mb_strtolower($filter).'%')."
 			OR lower(vorname) like ".$this->db->escape('%'.$filter.'%')."
@@ -433,4 +453,33 @@ class Person_model extends DB_Model
 		
 		return $this->execReadOnlyQuery($qry, [$person_id]);
 	}
+
+	//just a test function for a person_id tag
+	//alle personen die innerhalb dieses Zeitraumens 55  werden
+	public function getFiftyFivers($von, $bis)
+	{
+		$qry = "
+				SELECT 
+				    p.person_id
+				FROM public.tbl_person p 
+		         WHERE p.gebdatum >= DATE ? - INTERVAL '55 years' 
+				 AND p.gebdatum <= DATE ? - INTERVAL '55 years';
+		";
+		return $this->execReadOnlyQuery($qry, [$von, $bis]);
+	}
+
+	//just a test function for a person_id tag
+	//check if Person gets 55 in this time
+	public function isFiftyFive($von, $bis, $person_id)
+	{
+		$qry = "
+				SELECT 
+				    p.person_id
+				FROM public.tbl_person p 
+		         WHERE p.gebdatum >= DATE ? - INTERVAL '55 years' 
+				 AND p.gebdatum <= DATE ? - INTERVAL '55 years'
+				 AND p.persond_id = ?;
+		";
+		return $this->execReadOnlyQuery($qry, [$von, $bis, $person_id]);
+	}
 }
@@ -135,4 +135,15 @@ class Reservierung_model extends DB_Model
 		return $this->execQuery($query, [$uid, $uid]);
 	}

+	public function lektorHasReservierung($uid, $datum, $stunde)
+	{
+		$qry = "SELECT reservierung_id, uid, stg_kurzbz, ort_kurzbz, semester, verband, gruppe, gruppe_kurzbz, datum, stunde
+				FROM lehre.vw_reservierung
+				WHERE uid = ?
+					AND datum = ?
+					AND stunde = ?";
+
+		return $this->execReadOnlyQuery($qry, [$uid, $datum, $stunde]);
+	}
+
 }
@@ -333,6 +333,68 @@ class Stundenplan_model extends DB_Model
 		", [$start_date, $end_date, $lv_id]);
 	}

+	public function getStundenplanLE($lehreinheit, $start_date, $end_date, $stundenplan)
+	{
+		$qry = "
+			WITH lehreinheiten AS (
+				SELECT lehreinheit_id FROM lehre.tbl_lehreinheit WHERE lehreinheit_id = ?
+			), " . $this->getStundenplanCTE($stundenplan) . "
+			SELECT *
+			FROM stundenplanentries
+		";
+
+		return $this->execReadOnlyQuery($qry, array($lehreinheit, $start_date, $end_date));
+	}
+
+	public function getStundenplanLV($lehrveranstaltung_id, $start_date, $end_date, $stundenplan)
+	{
+		$qry = "
+			WITH lehreinheiten AS (
+				SELECT lehreinheit_id 
+				FROM lehre.tbl_lehreinheit 
+					JOIN tbl_studiensemester USING(studiensemester_kurzbz)
+				WHERE lehrveranstaltung_id = ?
+					AND tbl_studiensemester.start >= ? AND tbl_studiensemester.ende <= ?
+			), " . $this->getStundenplanCTE($stundenplan) . "
+			SELECT *
+			FROM stundenplanentries
+		";
+
+		return $this->execReadOnlyQuery($qry, array($lehrveranstaltung_id, $start_date, $end_date, $start_date, $end_date));
+	}
+
+	private function getStundenplanCTE($stundenplan)
+	{
+		return "entries AS (
+					SELECT
+						datum, min(stunde) as stunde_beginn, max(stunde) as stunde_ende,
+						array_agg(DISTINCT(
+								CASE WHEN gruppe_kurzbz is not null THEN gruppe_kurzbz
+										ELSE (UPPER(stg_typ || stg_kurzbz) || COALESCE(semester,'0') || COALESCE(verband,'') || COALESCE(gruppe,''))
+								END)) as gruppen_kuerzel,
+						array_agg(DISTINCT CONCAT(vorname || ' ' || nachname)) as lektorname,
+						array_agg(DISTINCT stundenplan.ort_kurzbz) as ort_kurzbz,
+						array_agg(DISTINCT titel) as titel,
+						lehrfach_bez, stundenplan.lehreinheit_id, lehrveranstaltung_id
+					FROM lehre.vw_$stundenplan as stundenplan
+						JOIN public.tbl_mitarbeiter ON stundenplan.uid = tbl_mitarbeiter.mitarbeiter_uid
+						JOIN tbl_benutzer ON tbl_mitarbeiter.mitarbeiter_uid = tbl_benutzer.uid
+						JOIN tbl_person USING(person_id)
+						JOIN lehreinheiten ON stundenplan.lehreinheit_id = lehreinheiten.lehreinheit_id
+					WHERE datum >= ? AND datum <= ?
+					GROUP BY datum, unr, stundenplan.lehreinheit_id, lehrveranstaltung_id, lehrfach_bez, lehrfach_bez
+					ORDER BY datum, min(stunde), unr, lehreinheit_id
+				),
+				stundenplanentries AS (
+					SELECT
+						entries.*,
+						stundeb.beginn AS beginn,
+						stundee.ende AS ende
+					FROM entries
+						JOIN lehre.tbl_stunde stundeb ON stundeb.stunde = entries.stunde_beginn
+						JOIN lehre.tbl_stunde stundee ON stundee.stunde = entries.stunde_ende
+				)";
+	}
 	/**
 	 * queries Stundenplan and filters by assigned ma_kurzbz, very similar to get by LVA
 	 *
@@ -542,11 +604,17 @@ class Stundenplan_model extends DB_Model
 		{
 			foreach($semester_date_range as $sem_date => $sem_date_range)
 			{
-				if(!array_key_exists($sem_date,$studentlehrverbaende) || count($studentlehrverbaende[$sem_date]) == 0)
+				if(!array_key_exists($sem,$studentlehrverbaende) || count($studentlehrverbaende[$sem]) == 0)
 				{
 					continue;
 				}
-				foreach($studentlehrverbaende[$sem_date] as $key=>$lehrverband)
+				$studlvbds = array_filter(
+					$studentlehrverbaende[$sem],
+					function($value) use ($sem_date) {
+						return $value->studiensemester_kurzbz === $sem_date;
+					}
+				);
+				foreach($studlvbds as $key=>$lehrverband)
 				{
 					$query .= "(((sp.studiengang_kz = ".$this->escape($lehrverband->studiengang_kz)." AND sp.semester = ".$this->escape($lehrverband->semester)." AND sp.verband = ".$this->escape($lehrverband->verband)." AND sp.gruppe = ".$this->escape($lehrverband->gruppe)." AND sp.datum BETWEEN ".$this->escape($sem_date_range->start)." AND ".$this->escape($sem_date_range->ende).")";
 					// Eintraege fuer den ganzen Verband
@@ -241,4 +241,15 @@ class Stundenplandev_model extends DB_Model

 		return $this->delete(array('lehreinheit_id' => $lehreinheit_id, 'mitarbeiter_uid' => $mitarbeiter_uid));
 	}
+
+	public function lektorHasStundenplandevEintrag($uid, $datum, $stunde)
+	{
+		$qry = "SELECT stundenplandev_id, lektor, stg_kurzbz, ort_kurzbz, semester, verband, gruppe, gruppe_kurzbz, datum, stunde 
+				FROM lehre.vw_stundenplandev
+				WHERE uid = ?
+					AND datum = ?
+					AND stunde = ?";
+
+		return $this->execReadOnlyQuery($qry, [$uid, $datum, $stunde]);
+	}
 }
@@ -61,4 +61,40 @@ class Zeitsperre_model extends DB_Model

        return $this->execQuery($qry);
    }
+
+	public function checkIfZeitsperreExists($uid, $datum, $stunde)
+	{
+		$this->db->select("*");
+
+		$this->db->where('mitarbeiter_uid', $uid);
+		$this->db->where('zeitsperretyp_kurzbz !=', 'ZVerfueg');
+
+		$this->db->group_start();
+
+			$this->db->where('vondatum <', $datum);
+			$this->db->or_group_start();
+				$this->db->where('vondatum', $datum);
+				$this->db->group_start();
+					$this->db->where('vonstunde <=', $stunde);
+					$this->db->or_where('vonstunde IS NULL', null, false);
+				$this->db->group_end();
+			$this->db->group_end();
+		$this->db->group_end();
+
+
+		$this->db->group_start();
+			$this->db->where('bisdatum >', $datum);
+			$this->db->or_group_start();
+				$this->db->where('bisdatum', $datum);
+				$this->db->group_start();
+					$this->db->where('bisstunde >=', $stunde);
+					$this->db->or_where('bisstunde IS NULL', null, false);
+				$this->db->group_end();
+
+			$this->db->group_end();
+		$this->db->group_end();
+
+		return $this->load();
+
+	}
 }
@@ -0,0 +1,83 @@
+<?php
+
+class Tabulator_preset_model extends DB_Model
+{
+	/**
+	 * Constructor
+	 */
+	public function __construct()
+	{
+		parent::__construct();
+		$this->dbTable = 'public.tbl_tabulator_presets';
+		$this->pk = ['preset_id'];
+		$this->hasSequence = true;
+
+
+		$this->load->model('person/Benutzer_model', 'BenutzerModel');
+	}
+
+	public function getTabulatorPreset($presetId)
+	{
+		$query = "
+			SELECT *
+			FROM public.tbl_tabulator_presets
+			WHERE preset_id = ?
+			LIMIT 1
+		";
+		return $this->execQuery($query, array($presetId));
+	}
+
+	public function getTabulatorPresetsByUserAndTable($uid, $tableName)
+	{
+		$query = '
+			SELECT *
+			FROM public.tbl_tabulator_presets
+			WHERE benutzer_uid = ?
+			AND table_name = ?
+			ORDER BY preset_id ASC
+		';
+		return $this->execQuery($query, array($uid, $tableName));
+	}
+
+	public function createTabulatorPreset($uid, $tableName, $presetName, $preset)
+	{
+		$presetCreationResult = $this->insert([
+			"benutzer_uid" => $uid,
+			"table_name" => $tableName,
+			"preset_name" => $presetName,
+			"preset_json" => json_encode($preset),
+		]);
+		
+		if (isError($presetCreationResult))
+		{
+			return error('Something went wrong during preset creation!');
+		}
+		
+		return success($presetCreationResult->retval);
+	}
+
+	public function updateTabulatorPreset($presetId, $preset)
+	{
+		$presetUpdateResult = $this->update(["preset_id" => $presetId], ["preset_json" => json_encode($preset)]);
+
+		if (isError($presetUpdateResult))
+        {
+            return error('Something went wrong during preset update!');
+        }
+
+        return success($presetUpdateResult->retval);
+	}
+
+	public function deleteTabulatorPreset($presetId)
+	{
+		$presetDeletionReseult = $this->delete(["preset_id" => $presetId]);
+		
+		if (isError($presetDeletionReseult))
+        {
+            return error('Something went wrong during preset deletion!');
+        }
+
+        return success($presetDeletionReseult->retval);
+	}
+
+}
--- a/Show More
+++ b/Show More