Merge branch 'master' into feature-25562/PV21_Datenbankstruktur_fuer_Vertraege_und_Gehaelter

2026-07-23 01:42:17 +00:00 · 2024-03-25 13:08:10 +01:00
parent 6869c147ef e1b5a86390
commit 9f2dd82009
136 changed files with 12417 additions and 3168 deletions
@@ -116,6 +116,96 @@ class Leitung extends FHC_Controller
 		$this->outputJsonSuccess($studierendenantrag_id);
 	}

+	public function pauseAntrag()
+	{
+		$this->load->library('form_validation');
+
+		$_POST = json_decode($this->input->raw_input_stream, true);
+
+		$this->form_validation->set_rules(
+			'studierendenantrag_id',
+			'Studierenden Antrag',
+			[
+				'required',
+				[
+					'isEntitledToPauseAntrag',
+					[$this->antraglib, 'isEntitledToPauseAntrag']
+				],
+				[
+					'antragCanBeManualPaused',
+					[$this->antraglib, 'antragCanBeManualPaused']
+				]
+			],
+			[
+				'isEntitledToPauseAntrag' => $this->p->t('studierendenantrag', 'error_no_right'),
+				'antragCanBeManualPaused' => $this->p->t(
+					'studierendenantrag',
+					'error_not_pauseable',
+					['id' => $this->input->post('studierendenantrag_id')]
+				)
+			]
+		);
+
+		if ($this->form_validation->run() == false)
+		{
+			return $this->outputJsonError($this->form_validation->error_array());
+		}
+
+		$studierendenantrag_id = $this->input->post('studierendenantrag_id');
+
+		$result = $this->antraglib->pauseAntrag($studierendenantrag_id, getAuthUID());
+
+		if (isError($result))
+			return $this->outputJsonError(['studierendenantrag_id' => getError($result)]);
+
+		$this->outputJsonSuccess($studierendenantrag_id);
+	}
+
+	public function unpauseAntrag()
+	{
+		$this->load->library('form_validation');
+
+		$_POST = json_decode($this->input->raw_input_stream, true);
+
+		$this->form_validation->set_rules(
+			'studierendenantrag_id',
+			'Studierenden Antrag',
+			[
+				'required',
+				[
+					'isEntitledToUnpauseAntrag',
+					[$this->antraglib, 'isEntitledToUnpauseAntrag']
+				],
+				[
+					'antragCanBeManualUnpaused',
+					[$this->antraglib, 'antragCanBeManualUnpaused']
+				]
+			],
+			[
+				'isEntitledToUnpauseAntrag' => $this->p->t('studierendenantrag', 'error_no_right'),
+				'antragCanBeManualUnpaused' => $this->p->t(
+					'studierendenantrag',
+					'error_not_paused',
+					['id' => $this->input->post('studierendenantrag_id')]
+				)
+			]
+		);
+
+		if ($this->form_validation->run() == false)
+		{
+			return $this->outputJsonError($this->form_validation->error_array());
+		}
+
+		$studierendenantrag_id = $this->input->post('studierendenantrag_id');
+
+		$result = $this->antraglib->unpauseAntrag($studierendenantrag_id, getAuthUID());
+
+		if (isError($result))
+			return $this->outputJsonError(['studierendenantrag_id' => getError($result)]);
+
+		$this->outputJsonSuccess($studierendenantrag_id);
+	}
+
 	public function objectAntrag()
 	{
 		$this->load->library('form_validation');
@@ -86,7 +86,7 @@ class Unterbrechung extends FHC_Controller

 		$data = getData($result);

-		$data->studiensemester = $this->antraglib->getSemesterForUnterbrechung($data->studiensemester_kurzbz);
+		$data->studiensemester = $this->antraglib->getSemesterForUnterbrechung($prestudent_id, null);

 		$this->outputJsonSuccess($data);
 	}
@@ -136,7 +136,7 @@ class Unterbrechung extends FHC_Controller
 		$datum_wiedereinstieg = $this->input->post('datum_wiedereinstieg');
 		$dms_id = null;

-		$result = $this->antraglib->getPrestudentUnterbrechungsBerechtigt($prestudent_id);
+		$result = $this->antraglib->getPrestudentUnterbrechungsBerechtigt($prestudent_id, $studiensemester, $datum_wiedereinstieg);
 		if (isError($result)) {
 			return $this->outputJsonError(['db' => getError($result)]);
 		}
@@ -161,6 +161,18 @@ class Wiederholung extends FHC_Controller
 		{
 			return $this->outputJsonError(['db' => $this->p->t('studierendenantrag', 'error_no_student')]);
 		}
+		elseif ($result == -1)
+		{
+			$result = $this->PrestudentstatusModel->getLastStatus($prestudent_id);
+			if (isError($result))
+				return $this->outputJsonError(['db' => getError($result)]);
+			if (!hasData($result))
+				return $this->outputJsonError(['db' => $this->p->t('studierendenantrag', 'error_no_prestudentstatus', [
+					'prestudent_id' => $prestudent_id
+				])]);
+			if (!in_array(current(getData($result))->status_kurzbz, $this->config->item('antrag_prestudentstatus_whitelist')))
+				return $this->outputJsonError(['db' => $this->p->t('studierendenantrag', 'error_no_student')]);
+		}
 		elseif ($result == -2)
 		{
 			return $this->outputJsonError(['db' => $this->p->t('studierendenantrag', 'error_antrag_exists')]);
@@ -241,7 +253,8 @@ class Wiederholung extends FHC_Controller
 			if (!hasData($result))
 				return $this->outputJsonError($this->p->t('studierendenantrag', 'error_no_antrag_found', ['id' => $antrag_id]));
 			$antrag = current(getData($result));
-			if ($antrag->status != Studierendenantragstatus_model::STATUS_CREATED && $antrag->status != Studierendenantragstatus_model::STATUS_LVSASSIGNED)
+			if ($antrag->status != Studierendenantragstatus_model::STATUS_CREATED
+				&& $antrag->status != Studierendenantragstatus_model::STATUS_LVSASSIGNED)
 				return $this->outputJsonError($this->p->t('studierendenantrag', 'error_antrag_locked'));
 		}

@@ -19,6 +19,8 @@ class AntragJob extends JOB_Controller
 		// Loads SanchoHelper
 		$this->load->helper('hlp_sancho_helper');

+		$this->load->library('AntragLib');
+
 		// Load Model
 		$this->load->model('education/Studierendenantrag_model', 'StudierendenantragModel');
 		$this->load->model('education/Studierendenantragstatus_model', 'StudierendenantragstatusModel');
@@ -172,7 +174,16 @@ class AntragJob extends JOB_Controller
 			$cc = $leitung['Details']->email;

 			// NOTE(chris): Sancho mail
-			if (sendSanchoMail("Sancho_Mail_Antrag_Stgl", $data, $to, 'Anträge - Aktion(en) erforderlich', DEFAULT_SANCHO_HEADER_IMG, DEFAULT_SANCHO_FOOTER_IMG, '', $cc))
+			if (sendSanchoMail(
+				"Sancho_Mail_Antrag_Stgl",
+				$data,
+				$to,
+				'Anträge - Aktion(en) erforderlich',
+				DEFAULT_SANCHO_HEADER_IMG,
+				DEFAULT_SANCHO_FOOTER_IMG,
+				'',
+				$cc
+			))
 				$count++;
 		}

@@ -306,11 +317,64 @@ class AntragJob extends JOB_Controller

 			foreach ($prestudents as $prestudent)
 			{
-				$result = $this->prestudentlib->setAbbrecher($prestudent->prestudent_id, $prestudent->studiensemester_kurzbz, $insertvon);
-				if (isError($result))
+				$result = $this->StudierendenantragstatusModel->insert([
+					'studierendenantrag_id' => $prestudent->studierendenantrag_id,
+					'studierendenantrag_statustyp_kurzbz' => Studierendenantragstatus_model::STATUS_DEREGISTERED,
+					'insertvon' => 'AntragJob'
+				]);
+				if (isError($result)) {
 					$this->logError(getError($result));
-				else
-					$count++;
+				} else {
+					$deregisterStatus = getData($result);
+
+					$result = $this->antraglib->pauseAntrag(
+						$prestudent->studierendenantrag_id,
+						Studierendenantragstatus_model::INSERTVON_DEREGISTERED
+					);
+					if (isError($result))
+						$this->logError(getError($result));
+
+					$result = $this->prestudentlib->setAbbrecher($prestudent->prestudent_id, '', $insertvon);
+					if (isError($result)) {
+						$this->StudierendenantragstatusModel->delete($deregisterStatus);
+						$this->logError(getError($result));
+					} else {
+						$count++;
+						
+						$datum_kp = new DateTime($prestudent->datum);
+						$dataMail = array(
+							'name'=> trim($prestudent->vorname . ' '. $prestudent->nachname),
+							'vorname' => $prestudent->vorname,
+							'nachname' => $prestudent->nachname,
+							'pers_kz'=> $prestudent->matrikelnr,
+							'stg' => $prestudent->bezeichnung,
+							'lvbezeichnung' => $prestudent->lvbezeichnung,
+							'datum_kp' => $datum_kp->format('d.m.Y'),
+							'studiensemester'=> $prestudent->studiensemester_kurzbz,
+							'Orgform'=> $prestudent->orgform,
+							'prestudent_id' => $prestudent->prestudent_id,
+							'fristablauf' => $dateDeadline->format('d.m.Y')
+						);
+
+						$email = $this->StudentModel->getEmailFH($this->StudentModel->getUID($prestudent->prestudent_id));
+						// Mail to Student
+						if (!sendSanchoMail('Sancho_Mail_Antrag_W_DL_Stud', $dataMail, $email, 'Wiederholung: Frist abgelaufen')) {
+							$this->logWarning("Failed to send Notification to " . $email);
+						}
+
+						$result = $this->StudiengangModel->load($prestudent->studiengang_kz);
+						if (!hasData($result)) {
+							$this->logWarning('No Studiengang found');
+							continue;
+						}
+						$studiengang = current(getData($result));
+						$email = $studiengang->email;
+						// Mail to Assistenz
+						if (!sendSanchoMail('Sancho_Mail_Antrag_W_DL_Assist', $dataMail, $email, 'Wiederholung: Frist abgelaufen')) {
+							$this->logWarning("Failed to send Notification to " . $email);
+						}
+					}
+				}
 			}
 			$this->logInfo($count . " Students set to Abbrecher");
 		}
@@ -326,8 +390,6 @@ class AntragJob extends JOB_Controller
 	{
 		$this->logInfo('Start Job handleAbmeldungenStglDeadline');

-		$this->load->library('AntragLib');
-
 		$insertvon = $this->config->item('antrag_job_systemuser');
 		if (!$insertvon) {
 			$this->logError('Config "antrag_job_systemuser" nicht gesetzt');
@@ -351,7 +413,10 @@ class AntragJob extends JOB_Controller
 		$this->StudierendenantragModel->addSelect('s.insertamum');
 		$this->StudierendenantragModel->addSelect('s.insertvon');

-		$this->StudierendenantragModel->db->where_in('public.get_rolle_prestudent(prestudent_id, studiensemester_kurzbz)', $this->config->item('antrag_prestudentstatus_whitelist'));
+		$this->StudierendenantragModel->db->where_in(
+			'public.get_rolle_prestudent(prestudent_id, studiensemester_kurzbz)',
+			$this->config->item('antrag_prestudentstatus_whitelist')
+		);

 		$result = $this->StudierendenantragModel->getWithLastStatusWhere([
            'typ' => Studierendenantrag_model::TYP_ABMELDUNG_STGL,
@@ -380,6 +445,10 @@ class AntragJob extends JOB_Controller
 				else {
 					$deregisterStatus = getData($result);

+					$result = $this->antraglib->pauseAntrag($antrag->studierendenantrag_id, Studierendenantragstatus_model::INSERTVON_DEREGISTERED);
+					if (isError($result))
+						$this->logError(getError($result));
+
 					$result = $this->prestudentlib->setAbbrecher(
 	                    $antrag->prestudent_id,
 	                    $antrag->studiensemester_kurzbz,
@@ -425,7 +494,6 @@ class AntragJob extends JOB_Controller
 							$this->logWarning("Failed to send Notification to " . $email);
 						}
 					}
-
 				}
 			}
 			$this->logInfo($count . "/" . count($antraege) . " Students set to Abbrecher");
@@ -556,12 +624,6 @@ class AntragJob extends JOB_Controller
 					}
 				}

-				$this->load->model('crm/Prestudentstatus_model', 'PrestudentstatusModel');
-				$result = $this->PrestudentstatusModel->loadLastWithStgDetails($prestudent->prestudent_id, $prestudent->studiensemester_kurzbz);
-				if (hasData($result)) {
-					$ausbildungssemester = current(getData($result))->semester;
-				}
-
 				$dataMail = array(
 					'name'=> trim($prestudent->vorname . ' '. $prestudent->nachname),
 					'vorname' => $prestudent->vorname,
@@ -578,7 +640,7 @@ class AntragJob extends JOB_Controller
 					'fristablauf' => $fristende->format('d.m.Y'),
 					'pre_wiederholer_sem' => $next_sem,
 					'wiederholer_sem' => $sem_after_next_sem,
-					'sem' => $ausbildungssemester
+					'sem' => $prestudent->ausbildungssemester
 				);

 				// NOTE(chris): Sancho mail
@@ -0,0 +1,165 @@
+<?php
+
+if (!defined('BASEPATH')) exit('No direct script access allowed');
+
+require_once('schedulers/ESIScheduler.php');
+
+/**
+ * Controller for initialising generateESI job
+ */
+class ESIJob extends JQW_Controller
+{
+	const ESI_PREFIX = 'urn:schac:personalUniqueCode:int:esi:at:';
+	const INSERT_VON = 'generateEsiJob';
+
+	/**
+	 * Controller initialization
+	 */
+	public function __construct()
+	{
+		parent::__construct();
+
+		// load models
+		$this->load->model('person/Person_model', 'PersonModel');
+		$this->load->model('person/Kennzeichen_model', 'KennzeichenModel');
+	}
+
+	//------------------------------------------------------------------------------------------------------------------
+	// Public methods
+
+	/**
+	 * Initialises generateESI job, handles job queue, logs infos/errors
+	 */
+	public function generateESI()
+	{
+		//$jobType = 'DVUHSendPruefungsaktivitaeten';
+		$this->logInfo(ESIScheduler::JOB_TYPE_GENERATE_ESI.' job start');
+
+		// Gets the latest jobs
+		$lastJobs = $this->getLastJobs(ESIScheduler::JOB_TYPE_GENERATE_ESI);
+
+		if (isError($lastJobs))
+		{
+			$this->logError(getCode($lastJobs).': '.getError($lastJobs), ESIScheduler::JOB_TYPE_GENERATE_ESI);
+		}
+		else
+		{
+			$this->updateJobs(
+				getData($lastJobs), // Jobs to be updated
+				array(JobsQueueLib::PROPERTY_START_TIME), // Job properties to be updated
+				array(date('Y-m-d H:i:s')) // Job properties new values
+			);
+
+			$person_arr = $this->_getInputObjArray(getData($lastJobs));
+
+			foreach ($person_arr as $persobj)
+			{
+				if (!isset($persobj->person_id))
+					$this->logError("Error when generating ESI: invalid parameters");
+				else
+				{
+					$person_id = $persobj->person_id;
+
+					// check if there already is an active ESI
+					$this->KennzeichenModel->addSelect('1');
+					$activeKennzeichenRes = $this->KennzeichenModel->loadWhere(
+						array('person_id' => $person_id, 'kennzeichentyp_kurzbz' => ESIScheduler::KENNZEICHENTYP_KURZBZ, 'aktiv' => true)
+					);
+
+					if (hasData($activeKennzeichenRes))
+					{
+						$this->logError("Active ESI for person Id $person_id already exists");
+						continue;
+					}
+
+					// get Matrikelnr for person for which ESI should be generated
+					$this->PersonModel->addSelect('matr_nr');
+					$personRes = $this->PersonModel->load($person_id);
+
+					if (!hasData($personRes))
+					{
+						$this->logError("Person with Id $person_id not found");
+						continue;
+					}
+
+					$matr_nr = getData($personRes)[0]->matr_nr;
+
+					if (isEmptyString($matr_nr))
+					{
+						$this->logError("Matrikelnummer for person with Id $person_id is empty");
+						continue;
+					}
+
+					$esi = self::ESI_PREFIX.$matr_nr;
+
+					// check if ESI was already used
+					$this->KennzeichenModel->addSelect('1');
+					$existingKennzeichenRes = $this->KennzeichenModel->loadWhere(
+						array('person_id' => $person_id, 'kennzeichentyp_kurzbz' => ESIScheduler::KENNZEICHENTYP_KURZBZ, 'inhalt' => $esi)
+					);
+
+					if (hasData($existingKennzeichenRes))
+					{
+						$this->logError("ESI $esi for person Id $person_id already exists");
+						continue;
+					}
+
+					// if everything ok, save the esi for the person
+					$saveEsiResult = $this->KennzeichenModel->insert(
+						array(
+							'person_id' => $person_id,
+							'kennzeichentyp_kurzbz' => ESIScheduler::KENNZEICHENTYP_KURZBZ,
+							'inhalt' => $esi,
+							'aktiv' => true,
+							'insertvon' => self::INSERT_VON
+						)
+					);
+
+					if (isError($saveEsiResult))
+					{
+						$this->logError("Error when sending ESI, person Id $person_id ".getError($saveEsiResult));
+					}
+				}
+			}
+
+			// Update jobs properties values
+			$this->updateJobs(
+				getData($lastJobs), // Jobs to be updated
+				array(JobsQueueLib::PROPERTY_STATUS, JobsQueueLib::PROPERTY_END_TIME), // Job properties to be updated
+				array(JobsQueueLib::STATUS_DONE, date('Y-m-d H:i:s')) // Job properties new values
+			);
+
+			if (hasData($lastJobs)) $this->updateJobsQueue(ESIScheduler::JOB_TYPE_GENERATE_ESI, getData($lastJobs));
+		}
+
+		$this->logInfo(ESIScheduler::JOB_TYPE_GENERATE_ESI.' job stop');
+	}
+
+	// --------------------------------------------------------------------------------------------
+	// Private methods
+
+	/**
+	 * Extracts input data from jobs.
+	 * @param $jobs
+	 * @return array with jobinput
+	 */
+	private function _getInputObjArray($jobs)
+	{
+		$mergedUsersArray = array();
+
+		if (count($jobs) == 0) return $mergedUsersArray;
+
+		foreach ($jobs as $job)
+		{
+			$decodedInput = json_decode($job->input);
+			if ($decodedInput != null)
+			{
+				foreach ($decodedInput as $el)
+				{
+					$mergedUsersArray[] = $el;
+				}
+			}
+		}
+		return $mergedUsersArray;
+	}
+}
@@ -0,0 +1,108 @@
+<?php
+
+if (!defined('BASEPATH')) exit('No direct script access allowed');
+
+/**
+ * Scheduler for generating ESI (European Student Identifier)
+ */
+class ESIScheduler extends JQW_Controller
+{
+	const JOB_TYPE_GENERATE_ESI = 'generateESI';
+	const KENNZEICHENTYP_KURZBZ = 'esi';
+
+	private $_active_status_kurzbz = array('Student', 'Diplomand');
+
+	/**
+	 * Controller initialization
+	 */
+	public function __construct()
+	{
+		parent::__construct();
+
+		$this->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+	}
+
+	//------------------------------------------------------------------------------------------------------------------
+	// Public methods
+
+	/**
+	 * Creates jobs queue entries for generateESI job.
+	 * @param string $studiensemester_kurzbz semester for which ESIs should be generated
+	 */
+	public function generateESI($studiensemester_kurzbz = null)
+	{
+		// if no semester given, get current studiensemester
+		if (!isset($studiensemester_kurzbz))
+		{
+			$semRes = $this->StudiensemesterModel->getAkt();
+
+			if (hasData($semRes))
+			{
+				$studiensemester_kurzbz = getData($semRes)[0]->studiensemester_kurzbz;
+			}
+		}
+
+		if (isset($studiensemester_kurzbz))
+		{
+			$this->logInfo('Start job queue scheduler '.self::JOB_TYPE_GENERATE_ESI);
+
+			$qry = "
+				SELECT
+					DISTINCT person_id
+				FROM
+					public.tbl_person pers
+					JOIN public.tbl_prestudent ps USING (person_id)
+					JOIN public.tbl_prestudentstatus pss USING (prestudent_id)
+				WHERE
+					pss.studiensemester_kurzbz = ?
+					AND pers.matr_nr IS NOT NULL
+					AND pss.status_kurzbz IN ?
+					AND NOT EXISTS ( -- has no ESI yet
+						SELECT 1
+						FROM
+							public.tbl_kennzeichen
+						WHERE
+							person_id = pers.person_id
+							AND kennzeichentyp_kurzbz = ?
+							AND aktiv
+					)
+					AND NOT EXISTS ( -- making sure it's not an incoming
+						SELECT 1
+						FROM
+							public.tbl_prestudentstatus
+						WHERE
+							prestudent_id = ps.prestudent_id
+							AND status_kurzbz = 'Incoming'
+					)";
+
+			$db = new DB_Model();
+			$jobInputResult = $db->execReadOnlyQuery($qry, array($studiensemester_kurzbz, $this->_active_status_kurzbz, self::KENNZEICHENTYP_KURZBZ));
+
+			// If an error occured then log it
+			if (isError($jobInputResult))
+			{
+				$this->logError(getError($jobInputResult));
+			}
+			elseif (hasData($jobInputResult)) // if persons found
+			{
+				// Add the new job to the jobs queue
+				$addNewJobResult = $this->addNewJobsToQueue(
+					self::JOB_TYPE_GENERATE_ESI, // job type
+					$this->generateJobs( // gnerate the structure of the new job
+						JobsQueueLib::STATUS_NEW,
+						json_encode(getData($jobInputResult))
+					)
+				);
+
+				// If error occurred return it
+				if (isError($addNewJobResult)) $this->logError(getError($addNewJobResult));
+			}
+		}
+		else
+		{
+			$this->logError('Error when getting Studiensemester');
+		}
+
+		$this->logInfo('End job queue scheduler '.self::JOB_TYPE_GENERATE_ESI);
+	}
+}
@@ -29,13 +29,11 @@ class MigrateContract extends CLI_Controller
 		$this->load->model('person/benutzerfunktion_model', 'BenutzerfunktionModel');

 		$this->matching_ba1_vertragsart = array(
-			//'101'=>'DV zum Bund', // TODO was tun wir damit
-			'101'=>'freierdv', // TODO was tun wir damit
+			'101'=>'externerlehrender',
 			'102'=>'DV anderen Gebietskörperschaft',
 			'103'=>'echterdv',
-			//'104'=>'Lehr- oder Ausbildungsverhältnis', // TODO was tun wir mit dem?
 			'104'=>'studentischehilfskr',
-			'105'=>'freierdv',
+			'105'=>'externerlehrender',
 			'106'=>'Andere Bildungseinrichtung',
 			'107'=>'werkvertrag',
 			'108'=>'studentischehilfskr',
@@ -3,7 +3,7 @@
 * Job zur einmaligen Import der Gehälter
 *
 * Aufruf (Encode / im Filenmae mit %2F):
- * php index.ci.php system/MigrateSalary/import filename 
+ * php index.ci.php system/MigrateSalary/import filename
 *
 */
 /*
@@ -34,7 +34,7 @@ class MigrateSalary extends CLI_Controller
 		$this->load->model('vertragsbestandteil/VertragsbestandteilStunden_model','VertragsbestandteilStundenModel');
 		$this->load->model('vertragsbestandteil/VertragsbestandteilFreitext_model','VertragsbestandteilFreitextModel');
 		$this->load->model('vertragsbestandteil/VertragsbestandteilFunktion_model','VertragsbestandteilFunktionModel');
-		
+
 	}

 	// -----------------------------------------------------------------------------------------------------------------
@@ -45,7 +45,7 @@ class MigrateSalary extends CLI_Controller
 	 */
 	public function import($file)
 	{
-	
+
 		// CSV Laden
 		$file = urldecode($file);
 		if($handle = fopen($file, "r"))
@@ -108,8 +108,8 @@ class MigrateSalary extends CLI_Controller
 					}
 					else
 					{
-						if ($data[$i] != '' 
-							&& isset($gehaltsarr[$gehaltsindex]) && isset($gehaltsarr[$gehaltsindex]['betrag']) 
+						if ($data[$i] != ''
+							&& isset($gehaltsarr[$gehaltsindex]) && isset($gehaltsarr[$gehaltsindex]['betrag'])
 							&& $gehaltsarr[$gehaltsindex]['betrag'] == $data[$i])
 						{
 							// Gehalt bleibt gleich
@@ -138,30 +138,31 @@ class MigrateSalary extends CLI_Controller
 							}
 						}
 					}
-					
+
 					$monat++;
 				}

 				// Zeile zu Ende - Ende Datum setzen wenn nicht für alle Monate ein Eintrag vorhanden ist
 				if($monat < count($monate) && isset($gehaltsarr[$gehaltsindex]))
-					$gehaltsarr[$gehaltsindex]['ende'] == $monate[$monat-1];
-				
+					$gehaltsarr[$gehaltsindex]['ende'] = $monate[$monat-1];
+
 			}
 			$this->_saveGehalt($lastuser, $gehaltsarr);
 		}
 	}

 	/**
-	 * Ermittelt das passende Dienstverhaeltnis uns speichert den 
+	 * Ermittelt das passende Dienstverhaeltnis uns speichert den
 	 * Gehaltsbestandteil
 	 */
 	private function _saveGehalt($uid, $gehaltsarr)
-	{		
+	{
 		$failed = false;
 		$this->db->trans_begin();

 		foreach($gehaltsarr as $row_gehalt)
 		{
+			//var_dump($row_gehalt);
 			$auszahlungen = 14;
 			$dvid = '';
 			$vbsid = '';
@@ -171,16 +172,18 @@ class MigrateSalary extends CLI_Controller
 			//DV und VBS Ermitteln
 			$dv = $this->DienstverhaeltnisModel->getDVByPersonUID($uid, $this->OE_DEFAULT, $row_gehalt['beginn']);

-			if (!hasData($dv))
+			// Wenn keiner gefunden wird oder mit Monatsersteln nur ein externer gefunden wird, weitersuchen ob im Monat noch ein
+			// "richtiger" Vertrag startet
+			if (!hasData($dv) || getData($dv)[0]->vertragsart_kurzbz='externerLehrender')
 			{
 				$date = new DateTime($row_gehalt['beginn']);
 				$date->modify('last day of this month');
 				$last_day_this_month = $date->format('Y-m-d');

-				// Wenn mit Monatsersten kein DV gefunden wird, wird stattdessen mit Monatsletzten gesucht um DVs zu finden 
+				// Wenn mit Monatsersten kein DV gefunden wird, wird stattdessen mit Monatsletzten gesucht um DVs zu finden
 				// für Personen die erst später im Monat in ihr DV einsteigen
-				$dv = $this->DienstverhaeltnisModel->getDVByPersonUID($uid, $this->OE_DEFAULT, $last_day_this_month);
-				
+				$dv = $this->DienstverhaeltnisModel->getDVByPersonUIDOverlapping($uid, $this->OE_DEFAULT, $row_gehalt['beginn'], $last_day_this_month);
+
 				if (!hasData($dv))
 				{
 					echo "\nKein passendes DV gefunden für User ".$uid." und Datum ".$row_gehalt['beginn']." -> ROLLBACK\n";
@@ -189,34 +192,53 @@ class MigrateSalary extends CLI_Controller
 				}
 				else
 				{
-					// Gehaltsstart wird auf den Start des DV korrigiert wenn nicht der Monatserste
-					$row_gehalt['beginn'] = getData($dv)[0]->von;
+					$resultdata = getData($dv);
+					foreach($resultdata as $dvdata)
+					{
+						// Externer DV wird in Monatsmitte zu echten DV - daher weitersuchen bei externenDVs da
+						// diese sowieso kein Gehalt zugeordnet haben
+						if($dvdata->vertragsart_kurzbz != 'externerLehrender')
+						{
+							$dvid = $dvdata->dienstverhaeltnis_id;
+							// Gehaltsstart wird auf den Start des DV korrigiert wenn nicht der Monatserste
+							// nur wenn das Beginndatum vor dem DV-Start liegt da sonst das Datum korrigiert wird
+							// wenn der Vertragsbestandteil wechselt
+							if($row_gehalt['beginn'] < $dvdata->von)
+								$row_gehalt['beginn'] = $dvdata->von;
+							break;
+						}
+					}
 				}
 			}
-
-			$resultdata = getData($dv);
-			if (count($resultdata) !== 1)
+			else
 			{
-				echo "Kein oder Mehrere DVs gefunden -> ROLLBACK";
+				$resultdata = getData($dv);
+
+				if (count($resultdata) == 1)
+					$dvid = $resultdata[0]->dienstverhaeltnis_id;
+			}
+
+			if ($dvid == '')
+			{
+				echo "Kein oder mehrere DVs gefunden -> ROLLBACK";
 				$failed = true;
 				break;
 			}

-			$dvid = $resultdata[0]->dienstverhaeltnis_id;
-			
 			$allin = $this->_isAllIn($dvid, $row_gehalt['beginn']);

 			$db = new DB_Model();

 			$resultVBS = $this->_getVBS($dvid, $row_gehalt['beginn']);
-			
+
 			if (hasData($resultVBS))
 			{
 				$vbsid = getData($resultVBS)[0]->vertragsbestandteil_id;
+				$vbsbis = getData($resultVBS)[0]->bis;
 			}
 			else
 			{
-				echo "Vertragsbestandteil wurde nicht gefunden -> ROLLBACK";
+				echo "Vertragsbestandteil fuer $uid DV $dvid wurde nicht gefunden mit Beginn ".$row_gehalt['beginn']."-> ROLLBACK";
 				$failed = true;
 				break;
 			}
@@ -246,7 +268,7 @@ class MigrateSalary extends CLI_Controller
 				);
 				if (isset($row_gehalt['ende']) && $row_gehalt['ende']!='')
 					$data['bis'] = $row_gehalt['ende'];
-				
+
 				$resultVBS = $this->VertragsbestandteilModel->Insert($data);
 				if(!isSuccess($resultVBS))
 				{
@@ -286,7 +308,7 @@ class MigrateSalary extends CLI_Controller
 				);
 				if (isset($row_gehalt['ende']) && $row_gehalt['ende']!='')
 					$data['bis'] = $row_gehalt['ende'];
-				
+
 				$resultVBS = $this->VertragsbestandteilModel->Insert($data);
 				if(!isSuccess($resultVBS))
 				{
@@ -356,16 +378,24 @@ class MigrateSalary extends CLI_Controller
 				$date->modify('last day of this month');
 				$last_day_this_month = $date->format('Y-m-d');

-				// TODO: wenn das Dienstverhaeltnis in diesem Monat endet und nicht der Monatsletzte ist,
+				// Wenn das Dienstverhaeltnis in diesem Monat endet und nicht der Monatsletzte ist,
 				// dann muss hier das Ende Datum des DV stehen bzw das Ende
 				// oder das Ende des VBS falls die Person in der Monatsmitte Stunden wechselt
 				$data['bis'] = $last_day_this_month;
+
+				// Wenn der Vertragsbestandteil endet bevor das Gehalt endet, dann wir das Gehaltsende auf VBS Ende gesetzt
+				//echo "Ende des VBS: $vbsbis Ende des Gehalt: ".$data['bis'];
+				if ($vbsbis != '' && $vbsbis < $data['bis'])
+				{
+					$data['bis'] = $vbsbis;
+					//echo "Gehalt auf vbs ende gesetzt";
+				}
 			}

 			$ret = $this->GehaltsbestandteilModel->insert($data,
 				$this->GehaltsbestandteilModel->getEncryptedColumns()
 			);
-		}	
+		}

 		if(!$failed)
 		{
@@ -375,7 +405,7 @@ class MigrateSalary extends CLI_Controller
 		{
 			echo "ROLLBACK";
 			$this->db->trans_rollback();
-		}	
+		}
 	}

 	/**
@@ -386,17 +416,17 @@ class MigrateSalary extends CLI_Controller
 		$db = new DB_Model();

 		$qry = "
-			SELECT 
-				* 
-			FROM 
-				hr.tbl_vertragsbestandteil 
+			SELECT
+				*
+			FROM
+				hr.tbl_vertragsbestandteil
 				JOIN hr.tbl_vertragsbestandteil_freitext USING(vertragsbestandteil_id)
-			WHERE 
-				dienstverhaeltnis_id=".$db->escape($dvid)." 
-				AND vertragsbestandteiltyp_kurzbz='freitext' 
+			WHERE
+				dienstverhaeltnis_id=".$db->escape($dvid)."
+				AND vertragsbestandteiltyp_kurzbz='freitext'
 				AND ".$db->escape($datum)." BETWEEN von AND COALESCE(bis, '2999-12-31')
 				AND freitexttyp_kurzbz='allin'";
-		
+
 		$resultAllIn = $db->execReadOnlyQuery($qry);

 		if (hasData($resultAllIn))
@@ -410,15 +440,15 @@ class MigrateSalary extends CLI_Controller
 		$db = new DB_Model();

 		$qry = "
-			SELECT 
-				* 
-			FROM 
-				hr.tbl_vertragsbestandteil 
-			WHERE 
-				dienstverhaeltnis_id=".$db->escape($dvid)." 
-				AND vertragsbestandteiltyp_kurzbz='stunden' 
+			SELECT
+				*
+			FROM
+				hr.tbl_vertragsbestandteil
+			WHERE
+				dienstverhaeltnis_id=".$db->escape($dvid)."
+				AND vertragsbestandteiltyp_kurzbz='stunden'
 				AND ".$db->escape($datum)." BETWEEN von AND COALESCE(bis, '2999-12-31')";
-		
+
 		$resultVBS = $db->execReadOnlyQuery($qry);

 		return $resultVBS;
@@ -430,22 +460,22 @@ class MigrateSalary extends CLI_Controller
 	private function _getUser($svnr)
 	{
 		$db = new DB_Model();
-		
+
 		$qry = "
-		SELECT 
-			mitarbeiter_uid 
-		FROM 
-			public.tbl_person 
+		SELECT
+			mitarbeiter_uid
+		FROM
+			public.tbl_person
 			JOIN public.tbl_benutzer using(person_id)
 			JOIN public.tbl_mitarbeiter ON(uid=mitarbeiter_uid)
 		WHERE
 			tbl_person.svnr = ". $db->escape($svnr)."
 			AND EXISTS(
-				SELECT 
-					1 
-				FROM 
-					hr.tbl_dienstverhaeltnis 
-				WHERE 
+				SELECT
+					1
+				FROM
+					hr.tbl_dienstverhaeltnis
+				WHERE
 					mitarbeiter_uid=tbl_mitarbeiter.mitarbeiter_uid
 					AND oe_kurzbz=". $db->escape($this->OE_DEFAULT)."
 			)
@@ -0,0 +1,255 @@
+<?php
+
+if (!defined('BASEPATH')) exit('No direct script access allowed');
+
+/**
+ * Controller using JSON
+ */
+class FHCAPI_Controller extends FHC_Controller
+{
+
+	/**
+	 * Response status
+	 * @see https://github.com/omniti-labs/jsend
+	 */
+	const STATUS_SUCCESS = 'success';
+	const STATUS_FAIL = 'fail';
+	const STATUS_ERROR = 'error';
+
+	/**
+	 * Error types
+	 */
+	const ERROR_TYPE_PHP = 'php'; // TODO(chris): php types from severity?
+	const ERROR_TYPE_EXCEPTION = 'exception';
+	const ERROR_TYPE_GENERAL = 'general';
+	const ERROR_TYPE_404 = '404';
+	const ERROR_TYPE_DB = 'db';
+	const ERROR_TYPE_VALIDATION = 'validation';
+
+	/**
+	 * Return Object
+	 *
+	 * @var array
+	 */
+	private $returnObj = [];
+
+
+	/**
+	 * Constructor
+	 *
+	 * @param array					$requiredPermissions
+	 * @return void
+	 */
+	public function __construct($requiredPermissions = [])
+	{
+		if (is_cli())
+			show_404();
+
+		parent::__construct();
+		
+		$this->config->set_item('error_views_path', VIEWPATH.'errors'.DIRECTORY_SEPARATOR.'json'.DIRECTORY_SEPARATOR);
+
+		global $g_result;
+		$g_result = $this;
+
+		ob_start(function ($content) {
+			$http_response_code = http_response_code();
+			// NOTE(chris): For security reasons 404 will be displayed the same everywhere
+			if ($http_response_code == REST_Controller::HTTP_NOT_FOUND)
+				return $content;
+
+			header('Content-Type: application/json; charset=utf-8');
+
+			if (!isset($this->returnObj['meta']) || !isset($this->returnObj['meta']['status'])) {
+				switch ($http_response_code) {
+					case 200:
+						$this->setStatus(self::STATUS_SUCCESS);
+						break;
+					case 400:
+						$this->setStatus(self::STATUS_FAIL);
+						break;
+					default:
+						$this->setStatus(self::STATUS_ERROR);
+						break;
+				}
+			}
+
+			#$this->returnObj['test'] = implode('/n', headers_list());
+
+			return json_encode($this->returnObj);
+		});
+
+		// Load libraries
+		$this->load->library('AuthLib');
+		$this->load->library('PermissionLib');
+
+		// Checks if the caller is allowed to access to this content
+		$this->_isAllowed($requiredPermissions);
+
+		// For JSON Requests (as opposed to multipart/form-data) get the $_POST variable from the input stream instead
+		if ($this->input->get_request_header('Content-Type', true) == 'application/json')
+			$_POST = json_decode($this->security->xss_clean($this->input->raw_input_stream), true);
+		elseif (isset($_POST['_jsondata'])) {
+			$_POST = array_merge($_POST, json_decode($_POST['_jsondata'], true));
+			unset($_POST['_jsondata']);
+		}
+	}
+
+
+	// ---------------------------------------------------------------
+	// Handle Output object
+	// ---------------------------------------------------------------
+
+	/**
+	 * @param array					$data
+	 * @param string				$type (optional)
+	 * @return void
+	 */
+	public function addError($data, $type = null)
+	{
+		if (!isset($this->returnObj['errors']))
+			$this->returnObj['errors'] = [];
+
+		$error = [];
+		
+		if (is_array($data)) {
+			if ($type == self::ERROR_TYPE_VALIDATION)
+				$error['messages'] = $data;
+			else
+				$error = $data;
+		} else {
+			$error['message'] = $data;
+		}
+		
+		if ($type)
+			$error['type'] = $type;
+
+		$this->returnObj['errors'][] = $error;
+	}
+
+	/**
+	 * @param mixed					$data
+	 * @return void
+	 */
+	public function setData($data)
+	{
+		$this->returnObj['data'] = $data;
+	}
+
+	/**
+	 * @param string				$status
+	 * @return void
+	 */
+	public function setStatus($status)
+	{
+		if (!isset($this->returnObj['meta']))
+			$this->returnObj['meta'] = [];
+		$this->returnObj['meta']['status'] = $status;
+	}
+
+
+	// ---------------------------------------------------------------
+	// Handle Output object - Shortcut functions
+	// ---------------------------------------------------------------
+
+	/**
+	 * @param array					$errors
+	 * @return void
+	 */
+	protected function terminateWithValidationErrors($errors)
+	{
+		$this->output->set_status_header(REST_Controller::HTTP_BAD_REQUEST);
+		$this->addError($errors, self::ERROR_TYPE_VALIDATION);
+		$this->setStatus(self::STATUS_FAIL);
+		exit(EXIT_ERROR);
+	}
+
+	/**
+	 * @param mixed					$data (optional)
+	 * @return void
+	 */
+	protected function terminateWithSuccess($data = null)
+	{
+		$this->setData($data);
+		$this->setStatus(self::STATUS_SUCCESS);
+		exit;
+	}
+
+	/**
+	 * @param array					$error
+	 * @param string				$type (optional)
+	 * @return void
+	 */
+	protected function terminateWithError($error, $type = null)
+	{
+		$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
+		$this->addError($error, $type);
+		$this->setStatus(self::STATUS_ERROR);
+		exit;
+	}
+
+	/**
+	 * @param stdclass				$result
+	 * @param string				$errortype
+	 * @return void
+	 */
+	protected function checkForErrors($result, $errortype = self::ERROR_TYPE_GENERAL)
+	{
+		// TODO(chris): IMPLEMENT!
+		if (isError($result)) {
+			$this->terminateWithError(getError($result), $errortype);
+		}
+		return $result->retval;
+	}
+
+	// TODO(chris): complete list
+
+
+	// ---------------------------------------------------------------
+	// Security
+	// ---------------------------------------------------------------
+
+	/**
+	 * Checks if the caller is allowed to access to this content with the given permissions
+	 * If it is not allowed will set the HTTP header with code 401
+	 * Wrapper for permissionlib->isEntitled
+	 *
+	 * @param array					$requiredPermissions
+	 * @return void
+	 */
+	protected function _isAllowed($requiredPermissions)
+	{
+		// Checks if this user is entitled to access to this content
+		if (!$this->permissionlib->isEntitled($requiredPermissions, $this->router->method))
+		{
+			$this->output->set_status_header(isLogged() ? REST_Controller::HTTP_FORBIDDEN : REST_Controller::HTTP_UNAUTHORIZED);
+
+			$this->addError([
+				'message' => 'You are not allowed to access to this content',
+				'controller' => $this->router->class,
+				'method' => $this->router->method,
+				'required_permissions' => $this->_rpsToString($requiredPermissions, $this->router->method)
+			]);
+			exit; // immediately terminate the execution
+		}
+	}
+
+	/**
+	 * Converts an array of permissions to a string that contains them as a comma separated list
+	 * Ex: "<permission 1>, <permission 2>, <permission 3>"
+	 *
+	 * @param array					$requiredPermissions
+	 * @param string				$method
+	 * @return void
+	 */
+	protected function _rpsToString($requiredPermissions, $method)
+	{
+		if (!isset($requiredPermissions[$method]))
+			return '';
+
+		if (!is_array($requiredPermissions[$method]))
+			return $requiredPermissions[$method];
+
+		return implode(', ', $requiredPermissions[$method]);
+	}
+}
@@ -62,9 +62,11 @@ class AntragLib
 			'insertvon' => $insertvon
 		]);

-		// NOTE(chris): remove "preabbrecher" statusgrund for Stgl-Abmeldungen if set
+		// NOTE(chris): remove "preabbrecher" statusgrund and paused stati for sibling Anträge for Stgl-Abmeldungen if set
 		$res = $this->_ci->StudierendenantragModel->load($antrag_id);
 		if (hasData($res) && current(getData($res))->typ == Studierendenantrag_model::TYP_ABMELDUNG_STGL) {
+			$this->unpauseAntrag($antrag_id, Studierendenantragstatus_model::INSERTVON_ABMELDUNGSTGL);
+
 			$this->_ci->PrestudentstatusModel->addSelect('tbl_status_grund.statusgrund_kurzbz');
 			$res = $this->_ci->PrestudentstatusModel->getLastStatusWithStgEmail(current(getData($res))->prestudent_id, '', 'Student');
 			if (hasData($res) && current(getData($res))->statusgrund_kurzbz == 'preabbrecher') {
@@ -83,6 +85,67 @@ class AntragLib
 		return $result;
 	}

+	/**
+	 * @param integer		$antrag_id
+	 * @param string		$insertvon
+	 *
+	 * @return stdClass
+	 */
+	public function pauseAntrag($antrag_id, $insertvon)
+	{
+		switch ($insertvon) {
+			case Studierendenantragstatus_model::INSERTVON_ABMELDUNGSTGL:
+				$result = $this->_ci->StudierendenantragstatusModel->stopAntraegeForAbmeldungStgl($antrag_id);
+				break;
+			case Studierendenantragstatus_model::INSERTVON_DEREGISTERED:
+				$result = $this->_ci->StudierendenantragstatusModel->stopAntraegeForAbbruchBy($antrag_id);
+				break;
+			default:
+				$result = $this->_ci->StudierendenantragstatusModel->insert([
+					'studierendenantrag_id' => $antrag_id,
+					'studierendenantrag_statustyp_kurzbz' => Studierendenantragstatus_model::STATUS_PAUSE,
+					'insertvon' => $insertvon
+				]);
+				break;
+		}
+
+		return $result;
+	}
+
+	/**
+	 * @param integer		$antrag_id
+	 * @param string		$insertvon
+	 *
+	 * @return stdClass
+	 */
+	public function unpauseAntrag($antrag_id, $insertvon)
+	{
+		if ($insertvon == Studierendenantragstatus_model::INSERTVON_DEREGISTERED)
+			return error($this->p->t('studierendenantrag', 'error_no_right'));
+		if ($insertvon == Studierendenantragstatus_model::INSERTVON_ABMELDUNGSTGL) {
+			return $this->_ci->StudierendenantragstatusModel->resumeAntraegeForAbmeldungStgl($antrag_id);
+		}
+		// NOTE(chris): get last status that is not pause
+		$this->_ci->StudierendenantragstatusModel->addOrder('insertamum');
+		$this->_ci->StudierendenantragstatusModel->addLimit(1);
+		$result = $this->_ci->StudierendenantragstatusModel->loadWhere([
+			'studierendenantrag_id' => $antrag_id,
+			'studierendenantrag_statustyp_kurzbz !=' => Studierendenantragstatus_model::STATUS_PAUSE
+		]);
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return error($this->_ci->p->t('studierendenantrag', 'error_no_antragstatus', ['id' => $antrag_id]));
+		$status = current(getData($result));
+
+		$result = $this->_ci->StudierendenantragstatusModel->insert([
+			'studierendenantrag_id' => $antrag_id,
+			'studierendenantrag_statustyp_kurzbz' => $status->studierendenantrag_statustyp_kurzbz,
+			'insertvon' => $insertvon
+		]);
+		return $result;
+	}
+
 	/**
 	 * NOTE(chris): permissions & verification must be handled outside
 	 *
@@ -169,7 +232,7 @@ class AntragLib
 			if (isError($result))
 				$errors[] = getError($result);
 			else {
-				$this->_ci->StudiengangModel->addJoin('public.tbl_prestudent ps','studiengang_kz');
+				$this->_ci->StudiengangModel->addJoin('public.tbl_prestudent ps', 'studiengang_kz');
 				$result = $this->_ci->StudiengangModel->loadWhere(['prestudent_id' => $antrag->prestudent_id]);
 				$stg = '';
 				$orgform = '';
@@ -190,6 +253,10 @@ class AntragLib
 						$vorlage ='Sancho_Mail_Antrag_A_Approve';
 						$subject = $this->_ci->p->t('studierendenantrag', 'mail_subject_A_Approve');

+						$result = $this->pauseAntrag($studierendenantrag_id, Studierendenantragstatus_model::INSERTVON_DEREGISTERED);
+						if (isError($result))
+							$errors[] = getError($result);
+
 						$result = $this->_ci->prestudentlib->setAbbrecher(
                            $antrag->prestudent_id,
                            $antrag->studiensemester_kurzbz,
@@ -208,7 +275,13 @@ class AntragLib
 						$data = [
 							'student' => $this->_ci->p->t('person', 'studentIn'),
 							'sem' => $antrag->studiensemester_kurzbz,
-							'linkPdf' => base_url('content/pdfExport.php?xml=Antrag' . $antrag->typ . '.xml.php&xsl=Antrag' . $antrag->typ . '&id=' . $antrag->studierendenantrag_id . '&output=pdf')
+							'linkPdf' => base_url('content/pdfExport.php?xml=Antrag' .
+								$antrag->typ .
+								'.xml.php&xsl=Antrag' .
+								$antrag->typ .
+								'&id=' .
+								$antrag->studierendenantrag_id .
+								'&output=pdf')
 						];
 						if (hasData($result)) {
 							$person = current(getData($result));
@@ -229,6 +302,10 @@ class AntragLib
 						sendSanchoMail($vorlage, $data, $prestudent_status->email, $subject);
 					}
 				} else { // ($antrag->typ == Studierendenantrag_model::TYP_ABMELDUNG_STGL)
+					$result = $this->pauseAntrag($studierendenantrag_id, Studierendenantragstatus_model::INSERTVON_ABMELDUNGSTGL);
+					if (isError($result))
+						$errors[] = getError($result);
+					
 					$result = $this->_ci->PrestudentstatusModel->getLastStatusWithStgEmail($antrag->prestudent_id, '', 'Student');
 					if (isError($result))
 					{
@@ -340,6 +417,10 @@ class AntragLib
 		if (isError($result))
 			return $result;
 		else {
+			$result = $this->pauseAntrag($studierendenantrag_id, Studierendenantragstatus_model::INSERTVON_DEREGISTERED);
+			// NOTE(chris): here we should have error handling but at the
+			// moment there is no way to notify the user for "soft" errors
+
 			$result = $this->_ci->prestudentlib->setAbbrecher(
                $antrag->prestudent_id,
                $antrag->studiensemester_kurzbz,
@@ -471,7 +552,6 @@ class AntragLib
 				'<br>Details:<br>' .
 				$error_msg;
 			} else {
-
 				$data = getData($data);

 				$result = $this->_ci->StudierendenantragstatusModel->insert([
@@ -582,7 +662,11 @@ class AntragLib
 								'nachname' => $data['person']->nachname,
 								'UID' => $data['UID'],
 								'sem' => $resultAntrag->studiensemester_kurzbz,
-								'linkPdf' => base_url('content/pdfExport.php?xml=AntragUnterbrechung.xml.php&xsl=AntragUnterbrechung&id=' . $studierendenantrag_id . '&output=pdf'),
+								'linkPdf' => base_url(
+									'content/pdfExport.php?xml=AntragUnterbrechung.xml.php&xsl=AntragUnterbrechung&id=' .
+									$studierendenantrag_id .
+									'&output=pdf'
+								),
 								'insertvon' => $approvedBy
 							],
 							$data['prestudent_status']->email,
@@ -699,7 +783,9 @@ class AntragLib
 								'Orgform' => $data['prestudent_status']->orgform_kurzbz,
 								'prestudent_id' => $data['prestudent_status']->prestudent_id,
 								'abmeldungLink' => site_url('lehre/Studierendenantrag/abmeldung/' . $data['prestudent_status']->prestudent_id),
-								'abmeldungLinkCIS' => CIS_ROOT . 'index.ci.php/lehre/Studierendenantrag/abmeldung/' . $data['prestudent_status']->prestudent_id
+								'abmeldungLinkCIS' => CIS_ROOT .
+									'index.ci.php/lehre/Studierendenantrag/abmeldung/' .
+									$data['prestudent_status']->prestudent_id
 							],
 							$data['email'],
 							$this->_ci->p->t('studierendenantrag', 'mail_subject_U_Reject')
@@ -734,7 +820,7 @@ class AntragLib
 			return error($this->_ci->p->t('studierendenantrag', 'error_no_antrag_found', ['id' => $studierendenantrag_id]));

 		$result['antrag'] = $antrag = current($res);
-		$this->_ci->StudiengangModel->addJoin('public.tbl_prestudent ps','studiengang_kz');
+		$this->_ci->StudiengangModel->addJoin('public.tbl_prestudent ps', 'studiengang_kz');
 		$res = $this->_ci->StudiengangModel->loadWhere(['prestudent_id' => $antrag->prestudent_id]);
 		if (hasData($res)) {
 			$result['studiengang'] = current(getData($res));
@@ -862,7 +948,9 @@ class AntragLib

 		$result = $this->_ci->StudierendenantragstatusModel->insert([
 			'studierendenantrag_id' => $antrag_id,
-			'studierendenantrag_statustyp_kurzbz' => $repeat ? Studierendenantragstatus_model::STATUS_CREATED : Studierendenantragstatus_model::STATUS_PASS,
+			'studierendenantrag_statustyp_kurzbz' => $repeat
+				? Studierendenantragstatus_model::STATUS_CREATED
+				: Studierendenantragstatus_model::STATUS_PASS,
 			'insertvon' => $insertvon
 		]);

@@ -878,8 +966,7 @@ class AntragLib
 			$email = $prestudent_status->email;
 			// NOTE(chris): Sancho mail
 			$lvzuweisungLink = site_url('lehre/Antrag/Wiederholung/assistenz/' . $antrag_id);
-			if( defined('VILESCI_ROOT') )
-			{
+			if (defined('VILESCI_ROOT')) {
 				$lvzuweisungLink = VILESCI_ROOT . 'index.ci.php/lehre/Antrag/Wiederholung/assistenz/' . $antrag_id;
 			}
 			sendSanchoMail(
@@ -888,7 +975,7 @@ class AntragLib
 					'antrag_id' => $antrag_id,
 					'stg' => $prestudent_status->stg_bezeichnung,
 					'Orgform' => $prestudent_status->orgform,
-					'lvzuweisungLink' => $lvzuweisungLink 
+					'lvzuweisungLink' => $lvzuweisungLink
 				],
 				$email,
 				$this->_ci->p->t('studierendenantrag', 'mail_subject_W_New')
@@ -1062,7 +1149,11 @@ class AntragLib
 			if (isError($result))
 				return $result;
 			if (!hasData($result))
-				return error($this->_ci->p->t('studierendenantrag', 'error_no_stdsem', ['studiensemester_kurzbz' => $antrag->studiensemester_kurzbz]));
+				return error($this->_ci->p->t(
+					'studierendenantrag',
+					'error_no_stdsem',
+					['studiensemester_kurzbz' => $antrag->studiensemester_kurzbz]
+				));
 			$asem = current(getData($result));

 			foreach ($stdsems as $sem) {
@@ -1117,7 +1208,6 @@ class AntragLib
 						$lv->antrag_anmerkung = $lvszugewiesen[$lv->lehrveranstaltung_id]->anmerkung;
 						$lv->antrag_zugelassen = true;
 					}
-
 				}
 			} else {
 				$lvsA = null;
@@ -1224,10 +1314,10 @@ class AntragLib
 	 * @param integer		$prestudent_id
 	 *
 	 * @return \stdClass	on success retval 0 means not a student;
-     *                      retval 1 means Berechtigt;
-     *                      retval -1 means has already an Antrag pending;
-     *                      retval -2 means other Antrag pending;
-     *                      retval -3 means in blacklist stg
+	 *                      retval 1 means Berechtigt;
+	 *                      retval -1 means has already an Antrag pending;
+	 *                      retval -2 means other Antrag pending;
+	 *                      retval -3 means in blacklist stg
 	 */
 	public function getPrestudentAbmeldeBerechtigt($prestudent_id)
 	{
@@ -1251,12 +1341,24 @@ class AntragLib

 		if (!in_array($result->status_kurzbz, $this->_ci->config->item('antrag_prestudentstatus_whitelist_abmeldung'))) {
 			$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere([
-                'prestudent_id' => $prestudent_id,
-                'campus.get_status_studierendenantrag(studierendenantrag_id)' => Studierendenantragstatus_model::STATUS_APPROVED
-            ], [
-                Studierendenantrag_model::TYP_ABMELDUNG,
-                Studierendenantrag_model::TYP_ABMELDUNG_STGL
-            ]);
+				'prestudent_id' => $prestudent_id,
+				's.studierendenantrag_statustyp_kurzbz' => Studierendenantragstatus_model::STATUS_APPROVED
+			], [
+				Studierendenantrag_model::TYP_ABMELDUNG,
+				Studierendenantrag_model::TYP_ABMELDUNG_STGL
+			]);
+			if (isError($result))
+				return $result;
+			if (hasData($result))
+				return success(-1);
+
+			$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere([
+				'prestudent_id' => $prestudent_id,
+				's.studierendenantrag_statustyp_kurzbz' => Studierendenantragstatus_model::STATUS_PAUSE
+			], [
+				Studierendenantrag_model::TYP_ABMELDUNG,
+				Studierendenantrag_model::TYP_ABMELDUNG_STGL
+			]);
 			if (isError($result))
 				return $result;
 			if (hasData($result))
@@ -1297,12 +1399,12 @@ class AntragLib
 	 * @param string		$studiensemester_kurzbz		(optional)
 	 *
 	 * @return \stdClass	on success retval 0 means not a student;
-     *                      retval 1 means Berechtigt;
+	 *                      retval 1 means Berechtigt;
 	 * 						retval -1 means has already an Antrag pending;
 	 * 						retval -2 means other Antrag pending;
 	 * 						retval -3 means in blacklist stg
 	 */
-	public function getPrestudentUnterbrechungsBerechtigt($prestudent_id, $studiensemester_kurzbz = null)
+	public function getPrestudentUnterbrechungsBerechtigt($prestudent_id, $studiensemester_kurzbz = null, $datum_wiedereinstieg = null)
 	{
 		$result = $this->_ci->PrestudentModel->load($prestudent_id);
 		if (isError($result))
@@ -1320,18 +1422,10 @@ class AntragLib
 		if (!hasData($result))
 			return success(0);
 		$result = current(getData($result));
+		$prestudent_stdsem = $result->studiensemester_kurzbz;
 		$datumStatus = $result->datum;
-		if (!in_array($result->status_kurzbz, $this->_ci->config->item('antrag_prestudentstatus_whitelist'))) {
-			$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere([
-				'prestudent_id' => $prestudent_id,
-				'typ' => Studierendenantrag_model::TYP_UNTERBRECHUNG,
-				'campus.get_status_studierendenantrag(studierendenantrag_id)' => Studierendenantragstatus_model::STATUS_APPROVED
-			]);
-			if (isError($result))
-				return $result;
-			if (hasData($result))
-				return success(-1);
-
+		if (!in_array($result->status_kurzbz, $this->_ci->config->item('antrag_prestudentstatus_whitelist'))
+			&& $result->status_kurzbz != 'Unterbrecher') {
 			return success(0);
 		}
 		$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere(['prestudent_id' => $prestudent_id]);
@@ -1339,7 +1433,8 @@ class AntragLib
 			return $result;
 		if (!hasData($result))
 			return success(1);
-		$result= getData($result);
+
+		$result = getData($result);
 		foreach ($result as $antrag)
 		{
 			if ($antrag->typ == Studierendenantrag_model::TYP_ABMELDUNG || $antrag->typ == Studierendenantrag_model::TYP_ABMELDUNG_STGL)
@@ -1349,11 +1444,11 @@ class AntragLib
 				elseif($antrag->status == Studierendenantragstatus_model::STATUS_APPROVED && $antrag->datum > $datumStatus)
 					return success(-2);
 			}
-			if ($studiensemester_kurzbz && $antrag->typ == Studierendenantrag_model::TYP_UNTERBRECHUNG)
+			if ($antrag->typ == Studierendenantrag_model::TYP_UNTERBRECHUNG)
 			{
-				// NOTE(chris): check if this is an old or canceled one
-				if ($antrag->studiensemester_kurzbz == $studiensemester_kurzbz && $antrag->status != Studierendenantragstatus_model::STATUS_CANCELLED)
-					return success(-1);
+				// NOTE(chris): Ignore canceled ones
+				if ($antrag->status == Studierendenantragstatus_model::STATUS_CANCELLED)
+					continue;
 			}
 			if ($antrag->typ == Studierendenantrag_model::TYP_WIEDERHOLUNG)
 			{
@@ -1362,6 +1457,17 @@ class AntragLib
 			}
 		}

+		if (!$studiensemester_kurzbz) {
+			$sems = $this->getSemesterForUnterbrechung($prestudent_id, $prestudent_stdsem);
+			if (!count(array_filter($sems, function ($item) {
+				return !$item['disabled'];
+			})))
+				return success(-1);
+		} else {
+			if ($this->_ci->StudierendenantragModel->hasRunningUnterbrechungBetween($prestudent_id, $studiensemester_kurzbz, $datum_wiedereinstieg))
+				return success(-1);
+		}
+		
 		return success(1);
 	}

@@ -1406,7 +1512,27 @@ class AntragLib
 			$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere([
 				'prestudent_id' => $prestudent_id,
 				'typ' => Studierendenantrag_model::TYP_WIEDERHOLUNG,
-				'campus.get_status_studierendenantrag(studierendenantrag_id)' => Studierendenantragstatus_model::STATUS_APPROVED
+				's.studierendenantrag_statustyp_kurzbz' => Studierendenantragstatus_model::STATUS_APPROVED
+			]);
+			if (isError($result))
+				return $result;
+			if (hasData($result))
+				return success(-1);
+
+			$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere([
+				'prestudent_id' => $prestudent_id,
+				'typ' => Studierendenantrag_model::TYP_WIEDERHOLUNG,
+				's.studierendenantrag_statustyp_kurzbz' => Studierendenantragstatus_model::STATUS_DEREGISTERED
+			]);
+			if (isError($result))
+				return $result;
+			if (hasData($result))
+				return success(-1);
+
+			$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere([
+				'prestudent_id' => $prestudent_id,
+				'typ' => Studierendenantrag_model::TYP_WIEDERHOLUNG,
+				's.studierendenantrag_statustyp_kurzbz' => Studierendenantragstatus_model::STATUS_PAUSE
 			]);
 			if (isError($result))
 				return $result;
@@ -1457,15 +1583,16 @@ class AntragLib
 		return success($result);
 	}

+	/**
+	 * Gets details for the latest Antrag of one or more types
+	 *
+	 * @param integer		$prestudent_id
+	 * @param array|string	$typ
+	 *
+	 * @return \stdClass
+	 */
 	public function getDetailsForLastAntrag($prestudent_id, $typ = null)
 	{
-		$result = $this->_ci->PrestudentstatusModel->loadLastWithStgDetails($prestudent_id);
-		if (isError($result))
-			return $result;
-		if (!hasData($result))
-			return error($this->_ci->p->t('studierendenantrag', 'error_no_prestudentstatus', ['prestudent_id' => $prestudent_id]));
-		$resultDetails = current(getData($result));
-
 		$where = [
 			'prestudent_id' => $prestudent_id
 		];
@@ -1494,21 +1621,20 @@ class AntragLib
 				'prestudent_id' => $prestudent_id
 			]));

-		$resultDetails->status = $resultAntrag->status;
-		$resultDetails->statustyp = $resultAntrag->statustyp;
-		$resultDetails->grund = $resultAntrag->grund;
-		$resultDetails->studierendenantrag_id = $resultAntrag->studierendenantrag_id;
-		$resultDetails->typ = $resultAntrag->typ;
-		$resultDetails->datum = $resultAntrag->datum;
-		$resultDetails->studiensemester_kurzbz = $resultAntrag->studiensemester_kurzbz;
-
-		return success($resultDetails);
+		return $this->addDetailsToAntrag($resultAntrag);
 	}

+	/**
+	 * Gets details for a specific Antrag
+	 *
+	 * @param integer		$studierendenantrag_id
+	 *
+	 * @return \stdClass
+	 */
 	public function getDetailsForAntrag($studierendenantrag_id)
 	{
 		$where = [
-			'studierendenantrag_id' => $studierendenantrag_id
+			's.studierendenantrag_id' => $studierendenantrag_id
 		];

 		$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere($where);
@@ -1519,76 +1645,99 @@ class AntragLib
 			return error($this->_ci->p->t('studierendenantrag', "error_no_antrag_found", ['id' => $studierendenantrag_id]));
 		$resultAntrag = current(getData($result));

-		$result = $this->_ci->PrestudentstatusModel->loadLastWithStgDetails($resultAntrag->prestudent_id, $resultAntrag->studiensemester_kurzbz);
+		return $this->addDetailsToAntrag($resultAntrag);
+	}
+
+	/**
+	 * Helper function for getDetailsForAntrag and getDetailsForLastAntrag
+	 *
+	 * @param \stdClass		$antrag
+	 *
+	 * @return \stdClass
+	 */
+	protected function addDetailsToAntrag($antrag)
+	{
+		$result = $this->_ci->PrestudentstatusModel->loadLastWithStgDetails(
+			$antrag->prestudent_id,
+			$antrag->studiensemester_kurzbz,
+			$antrag->insertamum
+		);
 		if (isError($result))
 			return $result;
 		if (!hasData($result)) {
-			$result = $this->_ci->PrestudentstatusModel->loadLastWithStgDetails($resultAntrag->prestudent_id);
+			$result = $this->_ci->PrestudentstatusModel->loadLastWithStgDetails(
+				$antrag->prestudent_id,
+				null,
+				$antrag->insertamum
+			);
 			if (isError($result))
 				return $result;
 			if (!hasData($result))
-				return error($this->_ci->p->t('studierendenantrag', 'error_no_prestudentstatus', $resultAntrag));
+				return error($this->_ci->p->t('studierendenantrag', 'error_no_prestudent_in_sem', $antrag));
+			$tmp = current(getData($result));
+			$this->_ci->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+			$res = $this->_ci->StudiensemesterModel->load($antrag->studiensemester_kurzbz);
+			if (hasData($res))
+				$tmp->studienjahr_kurzbz = current(getData($res))->studienjahr_kurzbz;
+			else
+				$tmp->studienjahr_kurzbz = '';
+			// NOTE(chris): the semester might not be correct on this fallback so we disable it
+			$tmp->semester = '';
 		}
-		$resultDetails = current(getData($result));

-		$resultDetails->status = $resultAntrag->status;
-		$resultDetails->statustyp = $resultAntrag->statustyp;
-		$resultDetails->grund = $resultAntrag->grund;
-		$resultDetails->studierendenantrag_id = $resultAntrag->studierendenantrag_id;
-		$resultDetails->typ = $resultAntrag->typ;
-		$resultDetails->dms_id = $resultAntrag->dms_id;
-		$resultDetails->datum_wiedereinstieg = $resultAntrag->datum_wiedereinstieg;
+		$result = current(getData($result));

-		return success($resultDetails);
+		$result->status = $antrag->status;
+		$result->statustyp = $antrag->statustyp;
+		$result->status_insertvon = $antrag->status_insertvon;
+		$result->grund = $antrag->grund;
+		$result->studierendenantrag_id = $antrag->studierendenantrag_id;
+		$result->typ = $antrag->typ;
+		$result->datum = $antrag->datum;
+		$result->dms_id = $antrag->dms_id;
+		$result->datum_wiedereinstieg = $antrag->datum_wiedereinstieg;
+
+		return success($result);
 	}

-	public function getSemesterForUnterbrechung($studiensemester_kurzbz)
+	/**
+	 * Rearrange the free semester slots for a new Unterbrechung
+	 *
+	 * @param integer		$prestudent_id
+	 * @param string		$studiensemester_kurzbz
+	 *
+	 * @return array
+	 */
+	public function getSemesterForUnterbrechung($prestudent_id, $studiensemester_kurzbz)
 	{
-		$this->_ci->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
-
-		$semester = [];
-
-		$result = $this->_ci->StudiensemesterModel->getNextFrom($studiensemester_kurzbz);
-		if (!hasData($result))
-			return $semester;
-		$nextSem = current(getData($result));
-
-		$semester[0] = [
-			'studiensemester_kurzbz' => $studiensemester_kurzbz,
-			'wiedereinstieg' => [$nextSem]
-		];
-
-		$result = $this->_ci->StudiensemesterModel->getNextFrom($nextSem->studiensemester_kurzbz);
-		if (!hasData($result))
-			return $semester;
-
-		$currSemester = current(getData($result));
-		$followingSemester = [$currSemester];
-
-		$max = $this->_ci->config->item('unterbrecher_semester_max_length');
-		if(!$max || $max < 1)
-			$max = 2;
-
-		for ($i = 1; $i < $max; $i++) {
-			$result = $this->_ci->StudiensemesterModel->getNextFrom($currSemester->studiensemester_kurzbz);
-			if (!hasData($result))
-				break;
-			$currSemester = current(getData($result));
-			$followingSemester[] = $currSemester;
-		}
-
-		$semester[1] = [
-			'studiensemester_kurzbz' => $nextSem->studiensemester_kurzbz,
-			'wiedereinstieg' => $followingSemester
-		];
-
-		//remove last Semester of the array
-		array_pop($followingSemester);
-
-		foreach ($followingSemester as $sem)
-			$semester[0]['wiedereinstieg'][] = $sem;
-
-		return $semester;
+		$result = $this->_ci->StudierendenantragModel->getFreeSlotsForUnterbrechung($prestudent_id, $studiensemester_kurzbz);
+		if (isError($result))
+			return [];
+		$result = getData($result);
+		if (!$result)
+			return [];
+		return array_reduce($result, function ($carry, $item) {
+			if (!isset($carry[$item->von]))
+				$carry[$item->von] = [
+					'studienjahr_kurzbz' => $item->studienjahr_kurzbz,
+					'studiensemester_kurzbz' => $item->von,
+					'wiedereinstieg' => [],
+					'disabled' => true
+				];
+			
+			$carry[$item->von]['wiedereinstieg'][] = [
+				'studiensemester_kurzbz' => $item->bis,
+				'start' => $item->ende,
+				'disabled' => (boolean)$item->studierendenantrag_id
+			];
+			
+			if ($carry[$item->von]['disabled'] && !$item->studierendenantrag_id) {
+				$carry[$item->von]['disabled'] = false;
+			}
+			
+			return $carry;
+		}, []);
+		return $result;
 	}

 	public function getAktivePrestudentenInStgs($studiengaenge, $query)
@@ -1664,7 +1813,6 @@ class AntragLib
 			return error($this->_ci->p->t('studierendenantrag', 'error_no_stg_antrag', ['id' => $antrag_id]));

 		$stg = current($result);
-		$studiengang_kz = $stg->studiengang_kz;
 		$semester = $stg->ausbildungssemester;

 		$result = $this->_ci->StudierendenantragModel->load($antrag_id);
@@ -1726,9 +1874,7 @@ class AntragLib
 			$result = $this->getLvsForAntrag($antrag_id);
 			if (hasData($result)) {
 				$lvs = getData($result);
-				$repeat_last = false;
 				if (isset($lvs['repeat_last'])) {
-					$repeat_last = true;
 					unset($lvs['repeat_last']);
 					$vorlage .= '_Lst';
 				}
@@ -1895,6 +2041,26 @@ class AntragLib
 		return $this->hasAccessToAntrag($antrag_id, 'student/studierendenantrag');
 	}

+	/**
+	 * @param integer		$antrag_id
+	 *
+	 * @return boolean
+	 */
+	public function isEntitledToPauseAntrag($antrag_id)
+	{
+		return ($this->hasAccessToAntrag($antrag_id, 'student/antragfreigabe') || $this->hasAccessToAntrag($antrag_id, 'student/studierendenantrag'));
+	}
+
+	/**
+	 * @param integer		$antrag_id
+	 *
+	 * @return boolean
+	 */
+	public function isEntitledToUnpauseAntrag($antrag_id)
+	{
+		return $this->hasAccessToAntrag($antrag_id, 'student/studierendenantrag');
+	}
+
 	/**
 	 * @param integer		$antrag_id
 	 *
@@ -1935,6 +2101,36 @@ class AntragLib
 		return $this->hasAccessToAntrag($antrag_id, 'student/antragfreigabe');
 	}

+	/**
+	 * @param integer		$antrag_id
+	 *
+	 * @return boolean
+	 */
+	public function antragCanBeManualPaused($antrag_id)
+	{
+		$this->_ci->StudierendenantragModel->db->where_not_in('campus.get_status_studierendenantrag(studierendenantrag_id)', [
+			Studierendenantragstatus_model::STATUS_DEREGISTERED,
+			Studierendenantragstatus_model::STATUS_APPROVED,
+			Studierendenantragstatus_model::STATUS_PAUSE
+		]);
+		$result = $this->_ci->StudierendenantragModel->loadWhere([
+			'studierendenantrag_id' => $antrag_id,
+			'typ' => Studierendenantrag_model::TYP_WIEDERHOLUNG
+		]);
+
+		return hasData($result);
+	}
+
+	/**
+	 * @param integer		$antrag_id
+	 *
+	 * @return boolean
+	 */
+	public function antragCanBeManualUnpaused($antrag_id)
+	{
+		return $this->_ci->StudierendenantragModel->isManuallyPaused($antrag_id);
+	}
+
 	/**
 	 * @param integer		$antrag_id
 	 * @param string|array	$status
@@ -74,7 +74,7 @@ class PrestudentLib
 		$result = $this->_ci->PrestudentstatusModel->withGrund($statusgrund_kurzbz)->insert([
 			'prestudent_id' => $prestudent_id,
 			'status_kurzbz' => Prestudentstatus_model::STATUS_ABBRECHER,
-			'studiensemester_kurzbz' => $studiensemester_kurzbz,
+			'studiensemester_kurzbz' => $prestudent_status->studiensemester_kurzbz,
 			'ausbildungssemester' => $prestudent_status->ausbildungssemester,
 			'datum' => $datum,
 			'insertvon' => $insertvon,
@@ -135,7 +135,7 @@ class PrestudentLib
 		}

 		//noch nicht eingetragene Zeugnisnoten auf 9 setzen
-		$result = $this->_ci->ZeugnisnoteModel->getZeugnisnoten($student->student_uid, $studiensemester_kurzbz);
+		$result = $this->_ci->ZeugnisnoteModel->getZeugnisnoten($student->student_uid, $prestudent_status->studiensemester_kurzbz);
 		if (isError($result))
 			return $result;
 		$result = getData($result) ?: [];
@@ -181,7 +181,7 @@ class PrestudentLib

 		//Studentlehrverband setzen
 		$this->_ci->StudentlehrverbandModel->update([
-			'studiensemester_kurzbz' => $studiensemester_kurzbz,
+			'studiensemester_kurzbz' => $prestudent_status->studiensemester_kurzbz,
 			'student_uid' => $student->student_uid
 		], [
 			'studiengang_kz' => $student->studiengang_kz,
@@ -267,7 +267,7 @@ class Prestudentstatus_model extends DB_Model
 		return $this->loadWhere($where);
 	}

-	public function loadLastWithStgDetails($prestudent_id, $studiensemester_kurzbz = null)
+	public function loadLastWithStgDetails($prestudent_id, $studiensemester_kurzbz = null, $max_date = null)
 	{
 		$this->load->config('studierendenantrag');

@@ -304,7 +304,8 @@ class Prestudentstatus_model extends DB_Model

 		$this->addLimit(1);

-		$this->db->where_in($this->dbTable . '.status_kurzbz', $this->config->item('antrag_prestudentstatus_whitelist'));
+		if ($max_date)
+			$this->db->where($this->dbTable . '.insertamum <', $max_date);

 		$whereArr = [
 			$this->dbTable . '.prestudent_id' => $prestudent_id,
@@ -87,7 +87,13 @@ class Pruefung_model extends DB_Model
        $this->addJoin('public.tbl_person pers', 'person_id');
        $this->addJoin('public.tbl_benutzer b', 's.student_uid=b.uid');
        $this->addJoin('public.tbl_studiengang g', 'ps.studiengang_kz=g.studiengang_kz');
-        $this->addJoin('public.tbl_prestudentstatus pss', 'pss.prestudent_id=ps.prestudent_id AND pss.studiensemester_kurzbz=le.studiensemester_kurzbz AND pss.status_kurzbz=get_rolle_prestudent(ps.prestudent_id, le.studiensemester_kurzbz)', 'LEFT');
+        $this->addJoin(
+        	'public.tbl_prestudentstatus pss',
+        	'pss.prestudent_id=ps.prestudent_id 
+        	AND pss.studiensemester_kurzbz=le.studiensemester_kurzbz 
+        	AND pss.status_kurzbz=get_rolle_prestudent(ps.prestudent_id, le.studiensemester_kurzbz)',
+        	'LEFT'
+        );
 		$this->addJoin('lehre.tbl_studienplan plan', 'studienplan_id', 'LEFT');
 		$this->addJoin('bis.tbl_orgform o', 'COALESCE(plan.orgform_kurzbz, pss.orgform_kurzbz, g.orgform_kurzbz)=o.orgform_kurzbz');
 		$this->db->join('campus.tbl_studierendenantrag a', 'ps.prestudent_id=a.prestudent_id and a.typ = ?', 'LEFT', false);
@@ -164,8 +170,10 @@ class Pruefung_model extends DB_Model
 		$this->addSelect('ps.prestudent_id');
 		$this->addSelect('lv.bezeichnung as lvbezeichnung');
 		$this->addSelect('le.studiensemester_kurzbz');
+		$this->addSelect('a.studierendenantrag_id');
 		$this->addSelect('a.typ');
 		$this->addSelect('campus.get_status_studierendenantrag(a.studierendenantrag_id) status');
+		$this->addSelect('pss.ausbildungssemester');

 		$this->addJoin('lehre.tbl_lehreinheit le', 'lehreinheit_id');
 		$this->addJoin('lehre.tbl_lehrveranstaltung lv', 'lehrveranstaltung_id');
@@ -174,12 +182,20 @@ class Pruefung_model extends DB_Model
 		$this->addJoin('public.tbl_person pers', 'person_id');
 		$this->addJoin('public.tbl_benutzer b', 's.student_uid=b.uid');
 		$this->addJoin('public.tbl_studiengang g', 'ps.studiengang_kz=g.studiengang_kz');
-		$this->addJoin('public.tbl_prestudentstatus pss', 'pss.prestudent_id=ps.prestudent_id AND pss.studiensemester_kurzbz=le.studiensemester_kurzbz AND pss.status_kurzbz=get_rolle_prestudent(ps.prestudent_id, le.studiensemester_kurzbz)', 'LEFT');
+		$this->addJoin(
+			'public.tbl_prestudentstatus pss',
+			'pss.prestudent_id=ps.prestudent_id 
+			AND pss.studiensemester_kurzbz=le.studiensemester_kurzbz 
+			AND pss.status_kurzbz=get_rolle_prestudent(ps.prestudent_id, le.studiensemester_kurzbz)',
+			'LEFT'
+		);
 		$this->addJoin('lehre.tbl_studienplan plan', 'studienplan_id', 'LEFT');
 		$this->addJoin('bis.tbl_orgform o', 'COALESCE(plan.orgform_kurzbz, pss.orgform_kurzbz, g.orgform_kurzbz)=o.orgform_kurzbz');
-		$this->addJoin('campus.tbl_studierendenantrag a', 'ps.prestudent_id=a.prestudent_id and a.typ=' . $this->escape(Studierendenantrag_model::TYP_WIEDERHOLUNG), 'LEFT');
-
-		$this->db->where_in("get_rolle_prestudent(ps.prestudent_id, null)", $this->config->item('antrag_prestudentstatus_whitelist'));
+		$this->addJoin(
+			'campus.tbl_studierendenantrag a',
+			'ps.prestudent_id=a.prestudent_id and a.typ=' . $this->escape(Studierendenantrag_model::TYP_WIEDERHOLUNG),
+			'LEFT'
+		);

 		$this->db->where("g.aktiv", true);

@@ -210,7 +226,7 @@ class Pruefung_model extends DB_Model
 		$this->db->where('ps.prestudent_id', $prestudent_id);

 		if ($max_date !== null) {
-			$this->db->where('p.datum <', $max_date);
+			$this->db->where('p.datum <=', $max_date);
 		}
 		if ($studiensemester_kurzbz !== null) {
 			$this->db->where('le.studiensemester_kurzbz', $studiensemester_kurzbz);
@@ -237,6 +253,8 @@ class Pruefung_model extends DB_Model

 		$this->db->where("b.aktiv", true);

+		$this->db->where_in("get_rolle_prestudent(ps.prestudent_id, null)", $this->config->item('antrag_prestudentstatus_whitelist'));
+
 		if (is_array($status)) {
 			if (in_array(null, $status)) {
 				$status = array_filter($status);
@@ -46,6 +46,8 @@ class Studierendenantrag_model extends DB_Model
 		$this->addSelect('datum_wiedereinstieg');
 		$this->addSelect($this->dbTable . '.typ');
 		$this->addSelect('st.studierendenantrag_statustyp_kurzbz as status');
+		$this->addSelect('s.insertvon as status_insertvon');
+		$this->addSelect('s.insertamum as status_insertamum');
 		$this->addSelect('dms_id');
 		$this->addSelect('st.bezeichnung[(' . $sql . ')] as statustyp');

@@ -54,7 +56,13 @@ class Studierendenantrag_model extends DB_Model
 		$this->addJoin('public.tbl_person', 'person_id');
 		$this->addJoin('public.tbl_studiengang stg', 'p.studiengang_kz=stg.studiengang_kz');
 		$this->addJoin('public.tbl_studiensemester ss', 'studiensemester_kurzbz');
-		$this->addJoin('public.tbl_prestudentstatus ps', 'ps.prestudent_id=p.prestudent_id AND ps.studiensemester_kurzbz=ss.studiensemester_kurzbz AND ps.status_kurzbz=get_rolle_prestudent(p.prestudent_id, ss.studiensemester_kurzbz)');
+		$this->addJoin(
+			'public.tbl_prestudentstatus ps',
+			'ps.prestudent_id=p.prestudent_id 
+			AND ps.studiensemester_kurzbz=ss.studiensemester_kurzbz 
+			AND ps.status_kurzbz=get_rolle_prestudent(p.prestudent_id, ss.studiensemester_kurzbz)',
+			'LEFT'
+		);
 		$this->addJoin('lehre.tbl_studienplan plan', 'studienplan_id', 'LEFT');
 		$this->addJoin('bis.tbl_orgform of', 'of.orgform_kurzbz=COALESCE(plan.orgform_kurzbz, ps.orgform_kurzbz, stg.orgform_kurzbz)');
 		$this->addJoin(
@@ -76,7 +84,9 @@ class Studierendenantrag_model extends DB_Model

 	public function loadActiveForStudiengaenge($studiengaenge)
 	{
-		// NOTE(chris): get language before changing things in the global db object because getUserLanguage() might use it and it should not have been tampered with
+		// NOTE(chris): get language before changing things in the global
+		// db object because getUserLanguage() might use it and it should
+		// not have been tampered with
 		$sql = "SELECT index FROM public.tbl_sprache WHERE sprache='" . getUserLanguage() . "' LIMIT 1";

 		$this->db->group_start();
@@ -85,7 +95,8 @@ class Studierendenantrag_model extends DB_Model
 			Studierendenantragstatus_model::STATUS_APPROVED,
 			Studierendenantragstatus_model::STATUS_REJECTED,
 			Studierendenantragstatus_model::STATUS_OBJECTION_DENIED,
-			Studierendenantragstatus_model::STATUS_DEREGISTERED
+			Studierendenantragstatus_model::STATUS_DEREGISTERED,
+			Studierendenantragstatus_model::STATUS_PAUSE
 		]);
 		$this->db->or_group_start();
 		$this->db->where('s.studierendenantrag_statustyp_kurzbz', Studierendenantragstatus_model::STATUS_APPROVED);
@@ -133,12 +144,18 @@ class Studierendenantrag_model extends DB_Model
 		$lang = 'SELECT index FROM public.tbl_sprache WHERE sprache=' . $this->escape(getUserLanguage());

 		$this->addSelect('*');
-		$this->addSelect('campus.get_status_studierendenantrag(studierendenantrag_id) status');
+		$this->addSelect($this->dbTable . '.grund AS grund');
+		$this->addSelect('s.studierendenantrag_statustyp_kurzbz status');
+		$this->addSelect('s.insertvon status_insertvon');
 		$this->addSelect('t.bezeichnung[(' . $lang . ')] statustyp');

+		$this->addJoin(
+			'campus.tbl_studierendenantrag_status s',
+			'campus.get_status_id_studierendenantrag(' . $this->dbTable . '.studierendenantrag_id)=s.studierendenantrag_status_id'
+		);
 		$this->addJoin(
 			'campus.tbl_studierendenantrag_statustyp t',
-			'campus.get_status_studierendenantrag(studierendenantrag_id)=t.studierendenantrag_statustyp_kurzbz'
+			's.studierendenantrag_statustyp_kurzbz=t.studierendenantrag_statustyp_kurzbz'
 		);

 		if ($types && is_array($types)) {
@@ -168,7 +185,11 @@ class Studierendenantrag_model extends DB_Model

 		$this->addJoin(
 			'public.tbl_prestudentstatus s',
-			$this->dbTable . '.prestudent_id=s.prestudent_id AND ' . $this->dbTable . '.studiensemester_kurzbz=s.studiensemester_kurzbz'
+			$this->dbTable . '.prestudent_id=s.prestudent_id 
+			AND ' .
+			$this->dbTable . '.studiensemester_kurzbz=s.studiensemester_kurzbz 
+			AND ' .
+			$this->dbTable . '.insertamum > s.insertamum'
 		);
 		$this->addJoin('public.tbl_prestudent p', $this->dbTable . '.prestudent_id=p.prestudent_id');
 		$this->addJoin('public.tbl_studiengang stg', 'studiengang_kz', 'LEFT');
@@ -180,8 +201,6 @@ class Studierendenantrag_model extends DB_Model

 		$this->addLimit(1);

-		$this->db->where_in('s.status_kurzbz', $this->config->item('antrag_prestudentstatus_whitelist'));
-
 		return $this->loadWhere([
 			$this->pk => $antrag_id
 		]);
@@ -233,20 +252,45 @@ class Studierendenantrag_model extends DB_Model
 		$this->addSelect($this->dbTable . '.datum_wiedereinstieg');
 		$this->addSelect($this->dbTable . '.grund');
 		$this->addSelect($this->dbTable . '.dms_id');
-		$this->addSelect("(SELECT count(1) FROM campus.tbl_studierendenantrag_status WHERE studierendenantrag_id = " . $this->dbTable . ".studierendenantrag_id AND studierendenantrag_statustyp_kurzbz = 'Genehmigt') AS isapproved", false);
+		$this->addSelect('s.insertvon AS status_insertvon');
+		$this->addSelect(
+			"(SELECT count(1) FROM campus.tbl_studierendenantrag_status WHERE studierendenantrag_id = " .
+			$this->dbTable .
+			".studierendenantrag_id AND studierendenantrag_statustyp_kurzbz = 'Genehmigt') AS isapproved",
+			false
+		);

 		$this->addJoin('public.tbl_prestudent p', 'prestudent_id', 'RIGHT');
 		$this->addJoin('public.tbl_studiengang stg', 'p.studiengang_kz=stg.studiengang_kz');
-		$this->addJoin('public.tbl_prestudentstatus ps', 'ps.prestudent_id=p.prestudent_id AND ps.studiensemester_kurzbz=' . $this->dbTable . '.studiensemester_kurzbz AND ps.status_kurzbz=get_rolle_prestudent(p.prestudent_id, ' . $this->dbTable . '.studiensemester_kurzbz)', 'LEFT');
+		$this->addJoin(
+			'public.tbl_prestudentstatus ps',
+			'ps.prestudent_id=p.prestudent_id AND ps.studiensemester_kurzbz=' .
+			$this->dbTable .
+			'.studiensemester_kurzbz AND ps.status_kurzbz=get_rolle_prestudent(p.prestudent_id, ' .
+			$this->dbTable .
+			'.studiensemester_kurzbz)',
+			'LEFT'
+		);
 		$this->addJoin('lehre.tbl_studienplan plan', 'studienplan_id', 'LEFT');
 		$this->addJoin('bis.tbl_orgform of', 'of.orgform_kurzbz=COALESCE(plan.orgform_kurzbz, ps.orgform_kurzbz, stg.orgform_kurzbz)');
+		$this->addJoin(
+			'campus.tbl_studierendenantrag_status s',
+			'campus.get_status_id_studierendenantrag(' . $this->dbTable . '.studierendenantrag_id)=s.studierendenantrag_status_id',
+			'LEFT'
+		);
 		$this->addJoin(
 			'campus.tbl_studierendenantrag_statustyp st',
-			'campus.get_status_studierendenantrag(studierendenantrag_id)=st.studierendenantrag_statustyp_kurzbz',
+			's.studierendenantrag_statustyp_kurzbz=st.studierendenantrag_statustyp_kurzbz',
 			'LEFT'
 		);
 		
-		$this->db->where("(SELECT status_kurzbz FROM public.tbl_prestudentstatus WHERE prestudent_id=p.prestudent_id AND status_kurzbz='Student' LIMIT 1) IS NOT NULL", null, false);
+		$this->db->where("(
+			SELECT status_kurzbz 
+			FROM public.tbl_prestudentstatus 
+			WHERE prestudent_id=p.prestudent_id 
+			AND status_kurzbz='Student' 
+			LIMIT 1
+		) IS NOT NULL", null, false);


 		return $this->loadWhere([
@@ -287,4 +331,144 @@ class Studierendenantrag_model extends DB_Model

 		return $this->loadWhere($where);
 	}
+
+	/**
+	 * Checks if the Prestudent has an active Unterbrechung between
+	 * the start of the given semester and the given enddate.
+	 * If the enddate is omitted the end of the given semester is used.
+	 *
+	 * @param integer		$prestudent_id
+	 * @param string		$studiensemester_kurzbz
+	 * @param string		$enddate					(optional)
+	 *
+	 * @return boolean
+	 */
+	public function hasRunningUnterbrechungBetween($prestudent_id, $studiensemester, $enddate = null)
+	{
+		$start = '(SELECT start FROM public.tbl_studiensemester WHERE studiensemester_kurzbz=' . $this->db->escape($studiensemester) . ')';
+		$end = $enddate
+			? $this->db->escape($enddate)
+			: '(SELECT ende FROM public.tbl_studiensemester WHERE studiensemester_kurzbz=' . $this->db->escape($studiensemester) . ')';
+
+		$this->addJoin('public.tbl_studiensemester', 'studiensemester_kurzbz');
+		$this->db->where([
+			'prestudent_id' => $prestudent_id,
+			'typ' => Studierendenantrag_model::TYP_UNTERBRECHUNG,
+			'campus.get_status_studierendenantrag(studierendenantrag_id) !=' => Studierendenantragstatus_model::STATUS_CANCELLED,
+			'start < ' . $end => null,
+			'datum_wiedereinstieg > ' . $start => null,
+		]);
+		return (boolean)$this->db->count_all_results($this->dbTable);
+	}
+
+	/**
+	 * Gets free semester slots for a new Unterbrechung.
+	 *
+	 * @param integer		$prestudent_id
+	 * @param string		$studiensemester_kurzbz		(optional)
+	 *
+	 * @return stdClass
+	 */
+	public function getFreeSlotsForUnterbrechung($prestudent_id, $studiensemester = null)
+	{
+		$max_starters = 2;
+		$max_length = max(
+			2,
+			(integer)$this->config->item('unterbrecher_semester_max_length')
+		);
+
+
+		$subquery = '';
+		if ($studiensemester)
+			$subquery = 'SELECT start FROM public.tbl_studiensemester WHERE studiensemester_kurzbz=?';
+		else
+			$subquery = 'SELECT start FROM public.tbl_studiensemester WHERE studiensemester_kurzbz=public.get_stdsem_prestudent (?, null)';
+
+		$sql = "WITH numbered_sems AS (
+		    SELECT
+		        a.studienjahr_kurzbz AS studienjahr_kurzbz,
+		        a.studiensemester_kurzbz AS von,
+		        b.studiensemester_kurzbz AS bis,
+		        a.start AS start,
+		        b.start AS ende,
+		        ROW_NUMBER() OVER (
+		            PARTITION BY a.studiensemester_kurzbz
+		            ORDER BY b.start
+		        ) AS row_number
+		    FROM public.tbl_studiensemester a
+		    LEFT JOIN public.tbl_studiensemester b ON (b.start > a.ende)
+		),
+		last_sems AS (
+		    SELECT *
+		    FROM numbered_sems 
+		    WHERE numbered_sems.row_number <= ?
+		)
+		SELECT s.von, s.bis, s.start, s.ende, studierendenantrag_id, studienjahr_kurzbz
+		FROM last_sems s
+		LEFT JOIN (
+			SELECT studierendenantrag_id, start, datum_wiedereinstieg AS ende 
+			FROM campus.tbl_studierendenantrag 
+			LEFT JOIN public.tbl_studiensemester USING(studiensemester_kurzbz) 
+			WHERE typ=? 
+			AND campus.get_status_studierendenantrag(studierendenantrag_id) != ?
+			AND prestudent_id=?
+		) a ON (s.start < a.ende AND s.ende > a.start)
+		WHERE s.start >= (" . $subquery . ")
+		ORDER BY s.start, s.ende
+		LIMIT ?;";
+
+		return $this->execQuery($sql, [
+			$max_length,
+			self::TYP_UNTERBRECHUNG,
+			Studierendenantragstatus_model::STATUS_CANCELLED,
+			$prestudent_id,
+			$studiensemester ?: $prestudent_id,
+			$max_length * $max_starters
+		]);
+	}
+
+	/**
+	 * Returns if an Antrag is manually paused
+	 *
+	 * @param integer		$antrag_id
+	 *
+	 * @return boolean
+	 */
+	public function isManuallyPaused($antrag_id)
+	{
+		$this->addJoin(
+			'campus.tbl_studierendenantrag_status s',
+			'campus.get_status_id_studierendenantrag(' . $this->dbTable . '.studierendenantrag_id)=s.studierendenantrag_status_id'
+		);
+
+		$this->db->where([
+			's.studierendenantrag_id' => $antrag_id,
+			's.studierendenantrag_statustyp_kurzbz' => Studierendenantragstatus_model::STATUS_PAUSE
+		]);
+
+		$this->db->group_start();
+		$this->db->where_not_in('s.insertvon', [
+			Studierendenantragstatus_model::INSERTVON_DEREGISTERED,
+			Studierendenantragstatus_model::INSERTVON_ABMELDUNGSTGL
+		]);
+		$this->db->or_group_start();
+		$this->db->where('s.insertvon', Studierendenantragstatus_model::INSERTVON_ABMELDUNGSTGL);
+		$this->db->where('1 !=', '(
+			SELECT COUNT(*)%2 
+			FROM campus.tbl_studierendenantrag_status i 
+			WHERE i.studierendenantrag_id = s.studierendenantrag_id 
+			AND i.insertamum > (
+				SELECT ii.insertamum 
+				FROM campus.tbl_studierendenantrag_status ii 
+				WHERE ii.studierendenantrag_id = s.studierendenantrag_id 
+				AND ii.insertvon <> ' . $this->escape(Studierendenantragstatus_model::INSERTVON_ABMELDUNGSTGL) . ' 
+				ORDER BY ii.insertamum DESC 
+				LIMIT 1
+			)
+		)', false);
+		$this->db->group_end();
+		$this->db->group_end();
+		
+		return hasData($this->load());
+	}
 }
@@ -15,6 +15,10 @@ class Studierendenantragstatus_model extends DB_Model
 	const STATUS_OBJECTED = 'Beeinsprucht';
 	const STATUS_OBJECTION_DENIED = 'EinspruchAbgelehnt';
 	const STATUS_DEREGISTERED = 'Abgemeldet';
+	const STATUS_PAUSE = 'Pause';
+
+	const INSERTVON_ABMELDUNGSTGL = "AbmeldungStgl";
+	const INSERTVON_DEREGISTERED = "Studienabbruch";

 	/**
 	 * Constructor
@@ -49,4 +53,157 @@ class Studierendenantragstatus_model extends DB_Model

 		return $this->loadWhere($where);
 	}
+
+	public function stopAntraegeForAbmeldungStgl($antrag_id)
+	{
+		$sql = 'INSERT INTO campus.tbl_studierendenantrag_status 
+		(studierendenantrag_id, studierendenantrag_statustyp_kurzbz, insertvon, insertamum)
+		SELECT studierendenantrag_id, ?, ?, (
+			SELECT insertamum 
+			FROM campus.tbl_studierendenantrag_status 
+			WHERE studierendenantrag_status_id = campus.get_status_id_studierendenantrag(?)
+		) 
+		FROM campus.tbl_studierendenantrag 
+		WHERE prestudent_id = (
+			SELECT prestudent_id 
+			FROM campus.tbl_studierendenantrag 
+			WHERE studierendenantrag_id = ?
+		)
+		AND studierendenantrag_id <> ? 
+		AND  (
+			(
+				typ = ?
+				AND campus.get_status_studierendenantrag(studierendenantrag_id) IN ?
+			) OR (
+				typ = ?
+				AND campus.get_status_studierendenantrag(studierendenantrag_id) IN ?
+			) OR (
+				typ = ?
+				AND campus.get_status_studierendenantrag(studierendenantrag_id) IN ?
+			)
+		)';
+		
+		return $this->execQuery($sql, [
+			self::STATUS_PAUSE,
+			self::INSERTVON_ABMELDUNGSTGL,
+			$antrag_id,
+			$antrag_id,
+			$antrag_id,
+			Studierendenantrag_model::TYP_ABMELDUNG,
+			[
+				Studierendenantragstatus_model::STATUS_CREATED
+			],
+			Studierendenantrag_model::TYP_UNTERBRECHUNG,
+			[
+				Studierendenantragstatus_model::STATUS_CREATED
+			],
+			Studierendenantrag_model::TYP_WIEDERHOLUNG,
+			[
+				Studierendenantragstatus_model::STATUS_REQUESTSENT_1,
+				Studierendenantragstatus_model::STATUS_REQUESTSENT_2,
+				Studierendenantragstatus_model::STATUS_CREATED,
+				Studierendenantragstatus_model::STATUS_LVSASSIGNED,
+				Studierendenantragstatus_model::STATUS_PAUSE
+			],
+		]);
+	}
+
+	public function resumeAntraegeForAbmeldungStgl($antrag_id)
+	{
+		$sql = 'INSERT INTO campus.tbl_studierendenantrag_status 
+		(studierendenantrag_id, studierendenantrag_statustyp_kurzbz, insertvon, insertamum)
+		SELECT studierendenantrag_id, (
+			SELECT studierendenantrag_statustyp_kurzbz
+			FROM campus.tbl_studierendenantrag_status s 
+			WHERE s.studierendenantrag_id=a.studierendenantrag_id 
+			AND campus.get_status_id_studierendenantrag(a.studierendenantrag_id) <> studierendenantrag_status_id 
+			ORDER BY insertamum DESC 
+			LIMIT 1
+		), ?, (
+			SELECT insertamum 
+			FROM campus.tbl_studierendenantrag_status 
+			WHERE studierendenantrag_status_id = campus.get_status_id_studierendenantrag(?)
+		)
+		FROM campus.tbl_studierendenantrag a
+		WHERE prestudent_id = (
+			SELECT prestudent_id 
+			FROM campus.tbl_studierendenantrag 
+			WHERE studierendenantrag_id = ?
+		)
+		AND typ <> ?
+		AND campus.get_status_studierendenantrag(studierendenantrag_id) = ?
+		';
+		
+		return $this->execQuery($sql, [
+			self::INSERTVON_ABMELDUNGSTGL,
+			$antrag_id,
+			$antrag_id,
+			Studierendenantrag_model::TYP_ABMELDUNG_STGL,
+			Studierendenantragstatus_model::STATUS_PAUSE
+		]);
+	}
+
+	public function stopAntraegeForAbbruchBy($antrag_id)
+	{
+		$sql = 'INSERT INTO campus.tbl_studierendenantrag_status 
+		(studierendenantrag_id, studierendenantrag_statustyp_kurzbz, insertvon, insertamum)
+		SELECT studierendenantrag_id, ?, ?, (
+			SELECT insertamum 
+			FROM campus.tbl_studierendenantrag_status 
+			WHERE studierendenantrag_status_id = campus.get_status_id_studierendenantrag(?)
+		)
+		FROM campus.tbl_studierendenantrag 
+		WHERE prestudent_id = (
+			SELECT prestudent_id 
+			FROM campus.tbl_studierendenantrag 
+			WHERE studierendenantrag_id = ?
+		)
+		AND studierendenantrag_id <> ? 
+		AND (
+			(
+				typ = ?
+				AND campus.get_status_studierendenantrag(studierendenantrag_id) NOT IN ?
+			) OR (
+				typ = ?
+				AND campus.get_status_studierendenantrag(studierendenantrag_id) NOT IN ?
+			) OR (
+				typ = ?
+				AND campus.get_status_studierendenantrag(studierendenantrag_id) NOT IN ?
+			) OR (
+				typ = ?
+				AND campus.get_status_studierendenantrag(studierendenantrag_id) NOT IN ?
+			)
+		)';
+		
+		return $this->execQuery($sql, [
+			self::STATUS_PAUSE,
+			self::INSERTVON_DEREGISTERED,
+			$antrag_id,
+			$antrag_id,
+			$antrag_id,
+			Studierendenantrag_model::TYP_ABMELDUNG,
+			[
+				Studierendenantragstatus_model::STATUS_APPROVED,
+				Studierendenantragstatus_model::STATUS_CANCELLED
+			],
+			Studierendenantrag_model::TYP_UNTERBRECHUNG,
+			[
+				Studierendenantragstatus_model::STATUS_APPROVED,
+				Studierendenantragstatus_model::STATUS_CANCELLED,
+				Studierendenantragstatus_model::STATUS_REMINDERSENT,
+				Studierendenantragstatus_model::STATUS_REJECTED
+			],
+			Studierendenantrag_model::TYP_ABMELDUNG_STGL,
+			[
+				Studierendenantragstatus_model::STATUS_CANCELLED,
+				Studierendenantragstatus_model::STATUS_DEREGISTERED,
+				Studierendenantragstatus_model::STATUS_OBJECTION_DENIED
+			],
+			Studierendenantrag_model::TYP_WIEDERHOLUNG,
+			[
+				Studierendenantragstatus_model::STATUS_DEREGISTERED,
+				Studierendenantragstatus_model::STATUS_APPROVED
+			],
+		]);
+	}
 }
@@ -0,0 +1,15 @@
+<?php
+class Kennzeichen_model extends DB_Model
+{
+
+	/**
+	 * Constructor
+	 */
+	public function __construct()
+	{
+		parent::__construct();
+		$this->dbTable = 'public.tbl_kennzeichen';
+		$this->pk = 'kennzeichen_id';
+	}
+
+}
@@ -18,7 +18,7 @@ class Dienstverhaeltnis_model extends DB_Model
        $result = null;

 		$qry = "
-        SELECT 
+        SELECT
            dv.dienstverhaeltnis_id,
            tbl_benutzer.uid,
            tbl_mitarbeiter.personalnummer,
@@ -30,8 +30,8 @@ class Dienstverhaeltnis_model extends DB_Model
            org.oe_kurzbz,
            org.bezeichnung oe_bezeichnung,
            dv.von,
-            dv.bis,     
-            dv.vertragsart_kurzbz,       
+            dv.bis,
+            dv.vertragsart_kurzbz,
            dv.updateamum,
            dv.updatevon
        FROM tbl_mitarbeiter
@@ -59,13 +59,13 @@ class Dienstverhaeltnis_model extends DB_Model
        ";

        return $this->execQuery($qry, $data);
-		
+
    }

    public function getDVByID($dvid) {
        $this->addSelect('hr.tbl_dienstverhaeltnis.*, public.tbl_organisationseinheit.bezeichnung as unternehmen');
 		$this->addJoin('public.tbl_organisationseinheit', 'hr.tbl_dienstverhaeltnis.oe_kurzbz = public.tbl_organisationseinheit.oe_kurzbz');
-		$result = $this->load($dvid); 
+		$result = $this->load($dvid);

 		if (hasData($result)) {
            return $result;
@@ -81,7 +81,7 @@ class Dienstverhaeltnis_model extends DB_Model
        $datestring = $date->format("Y-m-d");

 		$qry = "
-        SELECT 
+        SELECT
            dv.dienstverhaeltnis_id,
            tbl_benutzer.uid,
            tbl_mitarbeiter.personalnummer,
@@ -115,26 +115,26 @@ class Dienstverhaeltnis_model extends DB_Model
 			$params = array_merge($params, array($dvid, $dvid));
 			$dvidclause = <<<EODVIDC
            AND (
-				SELECT 
-					COUNT(*) AS karenzen 
-				FROM 
-					hr.tbl_vertragsbestandteil vb 
-				WHERE 
+				SELECT
+					COUNT(*) AS karenzen
+				FROM
+					hr.tbl_vertragsbestandteil vb
+				WHERE
 					vb.dienstverhaeltnis_id = ?
-				AND 
-					vb.vertragsbestandteiltyp_kurzbz = 'karenz' 
-				AND 
-					dv.von::date >= COALESCE(vb.von, '1970-01-01'::date) 
-				AND 
-					COALESCE(dv.bis::date, '2170-12-31'::date) <= COALESCE(vb.bis, '2170-12-31') 
+				AND
+					vb.vertragsbestandteiltyp_kurzbz = 'karenz'
+				AND
+					dv.von::date >= COALESCE(vb.von, '1970-01-01'::date)
+				AND
+					COALESCE(dv.bis::date, '2170-12-31'::date) <= COALESCE(vb.bis, '2170-12-31')
 			) = 0
 			AND dv.dienstverhaeltnis_id != ?
 EODVIDC;
-		
+
 		}
-		
+
 		$query = <<<EOSQL
-			SELECT 
+			SELECT
 				count(*) AS dvcount
 			FROM
 				hr.tbl_dienstverhaeltnis dv
@@ -142,35 +142,86 @@ EODVIDC;
 				dv.mitarbeiter_uid = ?
 			AND
 				dv.oe_kurzbz = ?
-			AND 
-				dv.vertragsart_kurzbz != 'werkvertrag' 
+			AND
+				dv.vertragsart_kurzbz != 'werkvertrag'
 			AND
 				?::date <= COALESCE(dv.bis, '2170-12-31'::date)
-			AND 
-				COALESCE(?::date, '2170-12-31'::date) >= dv.von 
+			AND
+				COALESCE(?::date, '2170-12-31'::date) >= dv.von
 			AND (
-				SELECT 
-					COUNT(*) AS karenzen 
-				FROM 
-					hr.tbl_vertragsbestandteil vb 
-				WHERE 
+				SELECT
+					COUNT(*) AS karenzen
+				FROM
+					hr.tbl_vertragsbestandteil vb
+				WHERE
 					vb.dienstverhaeltnis_id = dv.dienstverhaeltnis_id
-				AND 
-					vb.vertragsbestandteiltyp_kurzbz = 'karenz' 
-				AND 
-					?::date >= COALESCE(vb.von, '1970-01-01'::date) 
-				AND 
-					COALESCE(?::date, '2170-12-31'::date) <= COALESCE(vb.bis, '2170-12-31') 
-			) = 0 
+				AND
+					vb.vertragsbestandteiltyp_kurzbz = 'karenz'
+				AND
+					?::date >= COALESCE(vb.von, '1970-01-01'::date)
+				AND
+					COALESCE(?::date, '2170-12-31'::date) <= COALESCE(vb.bis, '2170-12-31')
+			) = 0
 			{$dvidclause}
 EOSQL;
-		
+
 		$ret = $this->execReadOnlyQuery($query, $params);
-		
+
 		if( ($dvcount = getData($ret)) && ($dvcount[0]->dvcount > 0) ) {
 			return true;
 		}
-		
-		return false;	
+
+		return false;
 	}
-}
+
+	public function getDVByPersonUIDOverlapping($uid, $oe_kurzbz=null, $beginn=null, $ende=null)
+    {
+        $result = null;
+
+		$qry = "
+        SELECT
+            dv.dienstverhaeltnis_id,
+            tbl_benutzer.uid,
+            tbl_mitarbeiter.personalnummer,
+            tbl_mitarbeiter.kurzbz,
+            tbl_mitarbeiter.lektor,
+            tbl_mitarbeiter.fixangestellt,
+            tbl_person.person_id,
+            tbl_benutzer.alias,
+            org.oe_kurzbz,
+            org.bezeichnung oe_bezeichnung,
+            dv.von,
+            dv.bis,
+            dv.vertragsart_kurzbz,
+            dv.updateamum,
+            dv.updatevon
+        FROM tbl_mitarbeiter
+            JOIN tbl_benutzer ON tbl_mitarbeiter.mitarbeiter_uid::text = tbl_benutzer.uid::text
+            JOIN tbl_person USING (person_id)
+            JOIN hr.tbl_dienstverhaeltnis dv ON(tbl_benutzer.uid::text = dv.mitarbeiter_uid::text)
+            JOIN public.tbl_organisationseinheit org USING(oe_kurzbz)
+        WHERE tbl_benutzer.uid=?";
+		$data = array($uid);
+
+		if(!is_null($oe_kurzbz))
+		{
+			$qry.=" AND oe_kurzbz=?";
+			$data[] = $oe_kurzbz;
+		}
+
+		if (!is_null($beginn) && !is_null($ende))
+		{
+			$qry.=" AND (?,?) OVERLAPS (dv.von, COALESCE(dv.bis, '2999-12-31'))";
+			$data[] = $beginn;
+			$data[] = $ende;
+		}
+
+		$qry .="
+        ORDER BY dv.von desc
+        ";
+
+        return $this->execQuery($qry, $data);
+
+    }
+
+}
@@ -0,0 +1,65 @@
+<?php
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+// NOTE(chris): For security reasons 404 will be displayed the same everywhere
+?><!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<title>404 Page Not Found</title>
+<style type="text/css">
+
+::selection { background-color: #E13300; color: white; }
+::-moz-selection { background-color: #E13300; color: white; }
+
+body {
+	background-color: #fff;
+	margin: 40px;
+	font: 13px/20px normal Helvetica, Arial, sans-serif;
+	color: #4F5155;
+}
+
+a {
+	color: #003399;
+	background-color: transparent;
+	font-weight: normal;
+}
+
+h1 {
+	color: #444;
+	background-color: transparent;
+	border-bottom: 1px solid #D0D0D0;
+	font-size: 19px;
+	font-weight: normal;
+	margin: 0 0 14px 0;
+	padding: 14px 15px 10px 15px;
+}
+
+code {
+	font-family: Consolas, Monaco, Courier New, Courier, monospace;
+	font-size: 12px;
+	background-color: #f9f9f9;
+	border: 1px solid #D0D0D0;
+	color: #002166;
+	display: block;
+	margin: 14px 0 14px 0;
+	padding: 12px 10px 12px 10px;
+}
+
+#container {
+	margin: 10px;
+	border: 1px solid #D0D0D0;
+	box-shadow: 0 0 8px #D0D0D0;
+}
+
+p {
+	margin: 12px 15px 12px 15px;
+}
+</style>
+</head>
+<body>
+	<div id="container">
+		<h1><?php echo $heading; ?></h1>
+		<?php echo $message; ?>
+	</div>
+</body>
+</html>
@@ -0,0 +1,49 @@
+<?php
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+global $g_result;
+
+// NOTE(chris): remove p tags from CI_Exceptions::show_error() function
+$msg = substr($message, 3);
+$msg = substr($msg, 0, -4);
+$msg = explode('</p><p>', $msg);
+
+$msgs = [];
+
+$error = [
+	'heading' => $heading
+];
+
+/** NOTE(chris): extract Error Number and SQL
+ * @see: DB_driver.php:692
+ */
+if (substr(current($msg), 0, 14) == 'Error Number: ') {
+	$code = substr(array_shift($msg), 14);
+	if ($code)
+		$error['code'] = (int)$code;
+	$msgs[] = array_shift($msg);
+	$error['sql'] = array_shift($msg);
+}
+
+/** NOTE(chris): extract Line Number and Filename
+ * @see: DB_driver.php:1782
+ * @see: DB_driver.php:1783
+ */
+if (count($msg) >= 2) {
+	if (substr(end($msg), 0, 13) == 'Line Number: ' && substr(prev($msg), 0, 10) == 'Filename: ') {
+			$error['line'] = (int)substr(array_pop($msg), 13);
+			$error['filename'] = substr(array_pop($msg), 10);
+	}
+}
+
+foreach ($msg as $m)
+	$msgs[] = $m;
+
+
+if (count($msgs) == 1)
+	$error['message'] = current($msgs);
+else
+	$error['messages'] = $msgs;
+
+$g_result->addError($error, FHCAPI_Controller::ERROR_TYPE_DB);
+$g_result->setStatus(FHCAPI_Controller::STATUS_ERROR);
@@ -0,0 +1,27 @@
+<?php
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+global $g_result;
+
+$error = [
+	'message' => $message,
+	'class' => get_class($exception),
+	'filename' => $exception->getFile(),
+	'line' => $exception->getLine()
+];
+
+if (defined('SHOW_DEBUG_BACKTRACE') && SHOW_DEBUG_BACKTRACE === true) {
+	$error['backtrace'] = [];
+	foreach (debug_backtrace() as $err) {
+		if (isset($err['file']) && strpos($err['file'], realpath(BASEPATH)) !== 0) {
+			$error['backtrace'][] = [
+				'file' => $err['file'],
+				'line' => $err['line'],
+				'function' => $err['function']
+			];
+		}
+	}
+}
+
+$g_result->addError($error, FHCAPI_Controller::ERROR_TYPE_EXCEPTION);
+$g_result->setStatus(FHCAPI_Controller::STATUS_ERROR);
@@ -0,0 +1,20 @@
+<?php
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+global $g_result;
+
+// NOTE(chris): remove p tags from CI_Exceptions::show_error() function
+$msg = substr($message, 3);
+$msg = substr($msg, 0, -4);
+$msg = explode('</p><p>', $msg);
+
+$error = [
+	'heading' => $heading
+];
+if (count($msg) == 1)
+	$error['message'] = current($msg);
+else
+	$error['messages'] = $msg;
+
+$g_result->addError($error, FHCAPI_Controller::ERROR_TYPE_GENERAL);
+$g_result->setStatus(FHCAPI_Controller::STATUS_ERROR);
@@ -0,0 +1,31 @@
+<?php
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+global $g_result;
+
+$error = [
+	'message' => $message,
+	'severity' => $severity,
+	'filename' => $filepath,
+	'line' => $line
+];
+
+if (defined('SHOW_DEBUG_BACKTRACE') && SHOW_DEBUG_BACKTRACE === true) {
+	$error['backtrace'] = [];
+	foreach (debug_backtrace() as $err) {
+		if (isset($err['file']) && strpos($err['file'], realpath(BASEPATH)) !== 0) {
+			$error['backtrace'][] = [
+				'file' => $err['file'],
+				'line' => $err['line'],
+				'function' => $err['function']
+			];
+		}
+	}
+}
+
+// TODO(chris): change type with severity
+$g_result->addError($error, 'php');
+
+if (((E_ERROR | E_PARSE | E_COMPILE_ERROR | E_CORE_ERROR | E_USER_ERROR) & $severity) === $severity) {
+	$g_result->setStatus('error');
+}
@@ -31,9 +31,9 @@ $this->load->view(
 	<div class="fhc-container row">
 		<div class="col-sm-8 mb-3">
 			<studierendenantrag-antrag
-				prestudent-id="<?= $prestudent_id; ?>"
+				:prestudent-id="<?= $prestudent_id; ?>"
 				antrag-type="<?= $antrag_type; ?>"
-				studierendenantrag-id="<?= $studierendenantrag_id; ?>"
+				:studierendenantrag-id="<?= $studierendenantrag_id ?: 'undefined'; ?>"
 				v-model:info-array="infoArray"
 				v-model:status-msg="status.msg"
 				v-model:status-severity="status.severity"
@@ -38,7 +38,10 @@ $this->load->view(
 						<div class="alert alert-secondary">
 							<p><?= $this->p->t('studierendenantrag', 'calltoaction_' . $type); ?></p>
 							<hr>
-							<a href="<?= site_url('lehre/Studierendenantrag/' . strtolower($type) . '/' . $prestudent_id); ?>" class="btn btn-outline-secondary">
+							<a 
+								href="<?= site_url('lehre/Studierendenantrag/' . strtolower($type) . '/' . $prestudent_id); ?>" 
+								class="btn btn-outline-secondary"
+								>
 								<i class="fa fa-plus"></i> <?= $this->p->t('studierendenantrag', 'antrag_typ_' . $type); ?>
 							</a>
 						</div>
@@ -63,7 +66,16 @@ $this->load->view(
 							<tr>
 								<td><?= $antrag->studierendenantrag_id; ?></td>
 								<td><?= $this->p->t('studierendenantrag', 'antrag_typ_' . $antrag->typ); ?></td>
-								<td><?= $antrag->status_bezeichnung; ?></td>
+								<td>
+									<?=
+										(
+											$antrag->status == Studierendenantragstatus_model::STATUS_PAUSE
+											&& $antrag->status_insertvon == Studierendenantragstatus_model::INSERTVON_DEREGISTERED
+										)
+										? $this->p->t('studierendenantrag', 'status_stop')
+										: $antrag->status_bezeichnung;
+									?>
+								</td>
 								<td><?= $antrag->studiensemester_kurzbz; ?></td>
 								<td><?= (new DateTime($antrag->datum))->format('d.m.Y'); ?></td>
 								<td><?= $antrag->datum_wiedereinstieg ? (new DateTime($antrag->datum_wiedereinstieg))->format('d.m.Y') : ''; ?></td>
@@ -74,15 +86,32 @@ $this->load->view(
 									</a>

 									<!-- Modal -->
-									<div class="modal fade" id="modalgrund<?= $antrag->studierendenantrag_id; ?>" tabindex="-1" aria-labelledby="modalgrundLabel<?= $antrag->studierendenantrag_id; ?>" aria-hidden="true">
+									<div
+										class="modal fade"
+										id="modalgrund<?= $antrag->studierendenantrag_id; ?>"
+										tabindex="-1"
+										aria-labelledby="modalgrundLabel<?= $antrag->studierendenantrag_id; ?>"
+										aria-hidden="true"
+										>
 										<div class="modal-dialog modal-dialog modal-lg">
 											<div class="modal-content">
 												<div class="modal-header">
-													<h5 class="modal-title" id="modalgrundLabel<?= $antrag->studierendenantrag_id; ?>"><?= $this->p->t('studierendenantrag', 'antrag_grund'); ?></h5>
+													<h5
+														class="modal-title"
+														id="modalgrundLabel<?= $antrag->studierendenantrag_id; ?>"
+														>
+														<?= $this->p->t('studierendenantrag', 'antrag_grund'); ?>
+													</h5>
 													<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
 												</div>
 												<div class="modal-body">
-													<textarea class="form-control" style="width: 100%; height: 250px;" readonly><?= $antrag->grund; ?></textarea>
+													<textarea
+														class="form-control"
+														style="width: 100%; height: 250px;"
+														readonly
+														>
+														<?= $antrag->grund; ?>
+													</textarea>
 												</div>
 											</div>
 										</div>
@@ -100,18 +129,78 @@ $this->load->view(
 									<?php } ?>
 								</td>
 								<td>
-									<a href="<?= site_url('lehre/Studierendenantrag/' . strtolower($antrag->typ) . '/' . $antrag->prestudent_id . '/' . $antrag->studierendenantrag_id); ?>"><i class="fa-solid fa-pen" title="<?= $this->p->t('studierendenantrag', 'btn_edit'); ?>"></i></a>
-									<?php if ($antrag->typ != Studierendenantrag_model::TYP_WIEDERHOLUNG && in_array($antrag->status, [
-										Studierendenantragstatus_model::STATUS_APPROVED,
-										Studierendenantragstatus_model::STATUS_OBJECTED,
-										Studierendenantragstatus_model::STATUS_OBJECTION_DENIED,
-										Studierendenantragstatus_model::STATUS_REMINDERSENT
-									])) { ?>
-										<a class="ms-2" target="_blank" href="<?= base_url('cis/private/pdfExport.php?xml=Antrag' . $antrag->typ . '.xml.php&xsl=Antrag' . $antrag->typ . '&id=' . $antrag->studierendenantrag_id . '&uid=' . getAuthUID()); ?>"><i class="fa-solid fa-download" title="<?= $this->p->t('studierendenantrag', 'btn_download_antrag'); ?>"></i></a>
+									<a
+										href="<?= site_url('lehre/Studierendenantrag/' .
+											strtolower($antrag->typ) .
+											'/' .
+											$antrag->prestudent_id .
+											'/' .
+											$antrag->studierendenantrag_id); ?>"
+										>
+										<i class="fa-solid fa-pen" title="<?= $this->p->t('studierendenantrag', 'btn_edit'); ?>"></i>
+									</a>
+									<?php
+									$allowed = [];
+									switch ($antrag->typ) {
+										case Studierendenantrag_model::TYP_ABMELDUNG:
+											$allowed = [
+												Studierendenantragstatus_model::STATUS_APPROVED
+											];
+											break;
+										case Studierendenantrag_model::TYP_ABMELDUNG_STGL:
+											$allowed = [
+												Studierendenantragstatus_model::STATUS_APPROVED,
+												Studierendenantragstatus_model::STATUS_OBJECTED,
+												Studierendenantragstatus_model::STATUS_OBJECTION_DENIED,
+												Studierendenantragstatus_model::STATUS_DEREGISTERED
+											];
+											break;
+										case Studierendenantrag_model::TYP_UNTERBRECHUNG:
+											$allowed = [
+												Studierendenantragstatus_model::STATUS_APPROVED,
+												Studierendenantragstatus_model::STATUS_REMINDERSENT
+											];
+											break;
+										case Studierendenantrag_model::TYP_WIEDERHOLUNG:
+											$allowed = [
+												Studierendenantragstatus_model::STATUS_DEREGISTERED
+											];
+											break;
+									}
+									if (in_array($antrag->status, $allowed)) { ?>
+										<a
+											class="ms-2"
+											target="_blank"
+											href="<?= base_url('cis/private/pdfExport.php?xml=Antrag' .
+											$antrag->typ .
+											'.xml.php&xsl=Antrag' .
+											$antrag->typ .
+											'&id=' .
+											$antrag->studierendenantrag_id .
+											'&uid=' .
+											getAuthUID()); ?>"
+											>
+											<i
+												class="fa-solid fa-download"
+												title="<?= $this->p->t('studierendenantrag', 'btn_download_antrag'); ?>"
+												>
+											</i>
+										</a>
 									<?php } ?>
-									<?php if ($antrag->typ == Studierendenantrag_model::TYP_WIEDERHOLUNG && $antrag->status == Studierendenantragstatus_model::STATUS_APPROVED) { ?>
-										<a class="ms-2" href="#modallv<?= $antrag->studierendenantrag_id; ?>" data-bs-toggle="modal"><?= $this->p->t('studierendenantrag', 'btn_show_lvs'); ?></a>
-										<lv-popup id="modallv<?= $antrag->studierendenantrag_id; ?>" antrag-id = "<?= $antrag->studierendenantrag_id; ?>">
+									<?php if ($antrag->typ == Studierendenantrag_model::TYP_WIEDERHOLUNG
+										&& $antrag->status == Studierendenantragstatus_model::STATUS_APPROVED
+									) { ?>
+										<a
+											class="ms-2"
+											href="#modallv<?= $antrag->studierendenantrag_id; ?>"
+											data-bs-toggle="modal"
+											>
+											<?= $this->p->t('studierendenantrag', 'btn_show_lvs'); ?>
+										</a>
+										<lv-popup
+											id="modallv<?= $antrag->studierendenantrag_id; ?>"
+											antrag-id = "<?= $antrag->studierendenantrag_id; ?>"
+											>
 											<?= $this->p->t('studierendenantrag', 'my_lvs'); ?>
 										</lv-popup>
 									<?php } ?>
@@ -142,14 +142,17 @@ $this->load->view(
 		<br>

 		<!-- link for external lectors 'Informationsblatt fuer externe Lehrende'. Show only for external lecturers -->
-		<?php if ($is_external_lector): ?>
+
 		<div class="row">
 			<div class="col-xs-12">
-				<span class="pull-right"><?php echo $this->p->t('dms' , 'informationsblattExterneLehrende'); ?></span>
+				<span class="pull-left"><?php echo $this->p->t('ui' , 'hinweistextLehrauftrag'); ?></span>
+				<?php if ($is_external_lector): ?>
+					<span class="pull-right"><?php echo $this->p->t('dms' , 'informationsblattExterneLehrende'); ?></span>
+				<?php endif; ?>
 			</div>
 		</div>
 		<br>
-		<?php endif; ?>
+

 		<!-- filter buttons & PDF downloads & password field & akzeptieren-button -->
 		<div class="row">