Merge branch 'master' into feature-36185/requestAnrechnung_bootstrap3_zu_bootstrap5

application/libraries/AntragLib.php

@@ -121,7 +121,7 @@ class AntragLib
 	public function unpauseAntrag($antrag_id, $insertvon)
 	{
 		if ($insertvon == Studierendenantragstatus_model::INSERTVON_DEREGISTERED)
-			return error($this->p->t('studierendenantrag', 'error_no_right'));
+			return error($this->_ci->p->t('studierendenantrag', 'error_no_right'));
 		if ($insertvon == Studierendenantragstatus_model::INSERTVON_ABMELDUNGSTGL) {
 			return $this->_ci->StudierendenantragstatusModel->resumeAntraegeForAbmeldungStgl($antrag_id);
 		}
@@ -257,18 +257,28 @@ class AntragLib
 						if (isError($result))
 							$errors[] = getError($result);
 
+						$this->_ci->load->model('crm/Statusgrund_model', 'StatusgrundModel');
+						$result = $this->_ci->StatusgrundModel->loadWhere(['statusgrund_kurzbz' => 'abbrecherStud']);
+						if (isError($result)) {
+							$errors[] = getError($result);
+							continue;
+						} elseif (!hasData($result)) {
+							$errors[] = $this->_ci->p->t('lehre', 'error_noStatusgrund', ['statusgrund_kurzbz' => 'abbrecherStud']);
+							continue;
+						}
+						$statusgrund = current(getData($result));
+
 						$result = $this->_ci->prestudentlib->setAbbrecher(
                             $antrag->prestudent_id,
                             $antrag->studiensemester_kurzbz,
                             $insertvon,
-                            'abbrecherStud',
+                            $statusgrund->statusgrund_id,
                             $antrag->datum,
                             $insertam
                         );
-						if (isError($result))
-						{
+						if (isError($result)) {
 							$errors[] = getError($result);
-							return $errors;
+							continue;
 						}
 
 						$result = $this->_ci->PersonModel->loadPrestudent($antrag->prestudent_id);
@@ -421,11 +431,20 @@ class AntragLib
 			// NOTE(chris): here we should have error handling but at the
 			// moment there is no way to notify the user for "soft" errors
 
+			$this->_ci->load->model('crm/Statusgrund_model', 'StatusgrundModel');
+			$result = $this->_ci->StatusgrundModel->loadWhere(['statusgrund_kurzbz' => 'abbrecherStgl']);
+			if (isError($result))
+				return $result;
+			if (!hasData($result))
+				return error($this->_ci->p->t('lehre', 'error_noStatusgrund', ['statusgrund_kurzbz' => 'abbrecherStgl']));
+			
+			$statusgrund = current(getData($result));
+
 			$result = $this->_ci->prestudentlib->setAbbrecher(
                 $antrag->prestudent_id,
                 $antrag->studiensemester_kurzbz,
                 $insertvon,
-                'abbrecherStgl',
+                $statusgrund->statusgrund_id,
                 $status->insertamum
             );
 
@@ -911,7 +930,7 @@ class AntragLib
 	public function createWiederholung($prestudent_id, $studiensemester_kurzbz, $insertvon, $repeat)
 	{
 		$result = $this->_ci->StudierendenantragModel->loadIdAndStatusWhere([
-			'prestudent_id' => $prestudent_id,
+			'tbl_studierendenantrag.prestudent_id' => $prestudent_id,
 			'studiensemester_kurzbz'=> $studiensemester_kurzbz,
 			'typ' => Studierendenantrag_model::TYP_WIEDERHOLUNG
 		]);
@@ -1341,7 +1360,7 @@ 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,
+				'tbl_studierendenantrag.prestudent_id' => $prestudent_id,
 				's.studierendenantrag_statustyp_kurzbz' => Studierendenantragstatus_model::STATUS_APPROVED
 			], [
 				Studierendenantrag_model::TYP_ABMELDUNG,
@@ -1353,7 +1372,7 @@ class AntragLib
 				return success(-1);
 
 			$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere([
-				'prestudent_id' => $prestudent_id,
+				'tbl_studierendenantrag.prestudent_id' => $prestudent_id,
 				's.studierendenantrag_statustyp_kurzbz' => Studierendenantragstatus_model::STATUS_PAUSE
 			], [
 				Studierendenantrag_model::TYP_ABMELDUNG,
@@ -1367,7 +1386,7 @@ class AntragLib
 			return success(0);
 		}
 
-		$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere(['prestudent_id' => $prestudent_id]);
+		$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere(['tbl_studierendenantrag.prestudent_id' => $prestudent_id]);
 		if (isError($result))
 			return $result;
 		if (!hasData($result))
@@ -1428,7 +1447,7 @@ class AntragLib
 			&& $result->status_kurzbz != 'Unterbrecher') {
 			return success(0);
 		}
-		$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere(['prestudent_id' => $prestudent_id]);
+		$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere(['tbl_studierendenantrag.prestudent_id' => $prestudent_id]);
 		if (isError($result))
 			return $result;
 		if (!hasData($result))
@@ -1444,12 +1463,6 @@ class AntragLib
 				elseif($antrag->status == Studierendenantragstatus_model::STATUS_APPROVED && $antrag->datum > $datumStatus)
 					return success(-2);
 			}
-			if ($antrag->typ == Studierendenantrag_model::TYP_UNTERBRECHUNG)
-			{
-				// NOTE(chris): Ignore canceled ones
-				if ($antrag->status == Studierendenantragstatus_model::STATUS_CANCELLED)
-					continue;
-			}
 			if ($antrag->typ == Studierendenantrag_model::TYP_WIEDERHOLUNG)
 			{
 				if($antrag->status == Studierendenantragstatus_model::STATUS_PASS)
@@ -1510,7 +1523,7 @@ class AntragLib
 		$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,
+				'tbl_studierendenantrag.prestudent_id' => $prestudent_id,
 				'typ' => Studierendenantrag_model::TYP_WIEDERHOLUNG,
 				's.studierendenantrag_statustyp_kurzbz' => Studierendenantragstatus_model::STATUS_APPROVED
 			]);
@@ -1520,7 +1533,7 @@ class AntragLib
 				return success(-1);
 
 			$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere([
-				'prestudent_id' => $prestudent_id,
+				'tbl_studierendenantrag.prestudent_id' => $prestudent_id,
 				'typ' => Studierendenantrag_model::TYP_WIEDERHOLUNG,
 				's.studierendenantrag_statustyp_kurzbz' => Studierendenantragstatus_model::STATUS_DEREGISTERED
 			]);
@@ -1530,7 +1543,7 @@ class AntragLib
 				return success(-1);
 
 			$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere([
-				'prestudent_id' => $prestudent_id,
+				'tbl_studierendenantrag.prestudent_id' => $prestudent_id,
 				'typ' => Studierendenantrag_model::TYP_WIEDERHOLUNG,
 				's.studierendenantrag_statustyp_kurzbz' => Studierendenantragstatus_model::STATUS_PAUSE
 			]);
@@ -1541,7 +1554,7 @@ class AntragLib
 
 			return success(0);
 		}
-		$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere(['prestudent_id' => $prestudent_id]);
+		$result = $this->_ci->StudierendenantragModel->loadWithStatusWhere(['tbl_studierendenantrag.prestudent_id' => $prestudent_id]);
 		if (isError($result))
 			return $result;
 		if (!hasData($result))
@@ -1594,7 +1607,7 @@ class AntragLib
 	public function getDetailsForLastAntrag($prestudent_id, $typ = null)
 	{
 		$where = [
-			'prestudent_id' => $prestudent_id
+			'tbl_studierendenantrag.prestudent_id' => $prestudent_id
 		];
 		$types = null;
 		if ($typ) {
@@ -2058,7 +2071,7 @@ class AntragLib
 	 */
 	public function isEntitledToUnpauseAntrag($antrag_id)
 	{
-		return $this->hasAccessToAntrag($antrag_id, 'student/studierendenantrag');
+		return ($this->hasAccessToAntrag($antrag_id, 'student/antragfreigabe') || $this->hasAccessToAntrag($antrag_id, 'student/studierendenantrag'));
 	}
 
 	/**
@@ -2180,4 +2193,4 @@ class AntragLib
 		$result = $this->_ci->StudierendenantraglehrveranstaltungModel->getLvsForPrestudent($prestudent_id, $studiensemester_kurzbz);
 		return $result;
 	}
-}
+}

application/libraries/IssuesLib.php

@@ -246,7 +246,27 @@ class IssuesLib
 				$fehlertext = vsprintf($fehlertextVorlage, $fehlertext_params);
 			}
 
-			$openIssuesCountRes = $this->_ci->IssueModel->getOpenIssueCount($fehlercode, $person_id, $oe_kurzbz, $fehlercode_extern);
+			if (isset($resolution_params))
+			{
+				if (is_array($resolution_params))
+				{
+					foreach ($resolution_params as $resolution_key => $resolution_param)
+					{
+						if (!is_string($resolution_key))
+							return error("Invalid parameter for resolution, must be an associative array");
+					}
+				}
+				else
+					return error("Invalid parameters for resolution");
+			}
+
+			$openIssuesCountRes = $this->_ci->IssueModel->getOpenIssueCount(
+				$fehlercode,
+				$person_id,
+				$oe_kurzbz,
+				$fehlercode_extern,
+				$resolution_params
+			);
 
 			if (hasData($openIssuesCountRes))
 			{
@@ -256,20 +276,6 @@ class IssuesLib
 
 				if ($openIssueCount == 0)
 				{
-					if (isset($resolution_params))
-					{
-						if (is_array($resolution_params))
-						{
-							foreach ($resolution_params as $resolution_key => $resolution_param)
-							{
-								if (!is_string($resolution_key))
-									return error("Invalid parameter for resolution, must be an associative array");
-							}
-						}
-						else
-							return error("Invalid parameters for resolution");
-					}
-
 					// insert new issue
 					return $this->_ci->IssueModel->insert(
 						array(

application/libraries/PermissionLib.php

@@ -21,6 +21,8 @@ require_once(FHCPATH.'include/functions.inc.php');
 require_once(FHCPATH.'include/wawi_kostenstelle.class.php');
 require_once(FHCPATH.'include/benutzerberechtigung.class.php');
 
+use \benutzerberechtigung as benutzerberechtigung;
+
 class PermissionLib
 {
 	// Available rights in the DB
@@ -65,8 +67,10 @@ class PermissionLib
 		if (!is_cli())
 		{
 			// API Caller rights initialization
+			$authObj = $this->_ci->authlib->getAuthObj();
 			self::$bb = new benutzerberechtigung();
-			self::$bb->getBerechtigungen(($this->_ci->authlib->getAuthObj())->{AuthLib::AO_USERNAME});
+			if ($authObj)
+				self::$bb->getBerechtigungen($authObj->{AuthLib::AO_USERNAME});
 		}
 	}
 
@@ -143,19 +147,7 @@ class PermissionLib
 							if (strpos($permissions[$pCounter], PermissionLib::PERMISSION_SEPARATOR) !== false)
 							{
 								// Retrieves permission and required access type from the $requiredPermissions array
-								list($permission, $requiredAccessType) = explode(PermissionLib::PERMISSION_SEPARATOR, $permissions[$pCounter]);
-
-								$accessType = '';
-
-								// Set the access type
-								if (strpos($requiredAccessType, PermissionLib::READ_RIGHT) !== false)
-								{
-									$accessType = PermissionLib::SELECT_RIGHT; // S
-								}
-								if (strpos($requiredAccessType, PermissionLib::WRITE_RIGHT) !== false)
-								{
-									$accessType .= PermissionLib::REPLACE_RIGHT.PermissionLib::DELETE_RIGHT; // UID
-								}
+								list($permission, $accessType) = $this->convertAccessType($permissions[$pCounter]);
 
 								if (!isEmptyString($accessType)) // if compliant
 								{
@@ -166,6 +158,16 @@ class PermissionLib
 									if ($checkPermissions === true) break;
 								}
 							}
+							elseif ($permissions[$pCounter] == Auth_Controller::PERM_ANONYMOUS)
+							{
+								$checkPermissions = true;
+								break;
+							}
+							elseif ($permissions[$pCounter] == Auth_Controller::PERM_LOGGED)
+							{
+								$checkPermissions = isLogged();
+								break;
+							}
 							else
 							{
 								show_error('The given permission does not use the correct format');
@@ -195,6 +197,24 @@ class PermissionLib
 		return $checkPermissions;
 	}
 
+	/**
+	 * Retrieves permission and required access type from the newly formatted permission string
+	 *
+	 * @param string $permission
+	 *
+	 * @return array
+	 */
+	public function convertAccessType($permission)
+	{
+		list($permission, $reqAccessType) = explode(PermissionLib::PERMISSION_SEPARATOR, $permission);
+		$accessType = '';
+		if (strpos($reqAccessType, PermissionLib::READ_RIGHT) !== false)
+			$accessType = PermissionLib::SELECT_RIGHT;
+		if (strpos($reqAccessType, PermissionLib::WRITE_RIGHT) !== false)
+			$accessType = PermissionLib::REPLACE_RIGHT.PermissionLib::DELETE_RIGHT;
+		return [$permission, $accessType];
+	}
+
 	/**
 	 * Checks if at least one of the permissions given as parameter (requiredPermissions) belongs to the authenticated user
 	 * It checks the given permissions against a given method (controller method name) and a given permission type (R and/or W)

application/libraries/PrestudentLib.php

@@ -35,8 +35,15 @@ class PrestudentLib
 		$this->_ci->load->model('organisation/Studiengang_model', 'StudiengangModel');
 	}
 
-	public function setAbbrecher($prestudent_id, $studiensemester_kurzbz, $insertvon = null, $statusgrund_kurzbz = null, $datum = null, $bestaetigtam = null, $bestaetigtvon = null)
-	{
+	public function setAbbrecher(
+		$prestudent_id,
+		$studiensemester_kurzbz,
+		$insertvon = null,
+		$statusgrund_id = null,
+		$datum = null,
+		$bestaetigtam = null,
+		$bestaetigtvon = null
+	) {
 		if (!$insertvon)
 			$insertvon = getAuthUID();
 		if (!$bestaetigtvon)
@@ -70,8 +77,8 @@ class PrestudentLib
 		if(!$bestaetigtam)
 			$bestaetigtam = date('c');
 
-		//Status und Statusgrund updaten
-		$result = $this->_ci->PrestudentstatusModel->withGrund($statusgrund_kurzbz)->insert([
+		// Status und Statusgrund updaten
+		$result = $this->_ci->PrestudentstatusModel->insert([
 			'prestudent_id' => $prestudent_id,
 			'status_kurzbz' => Prestudentstatus_model::STATUS_ABBRECHER,
 			'studiensemester_kurzbz' => $prestudent_status->studiensemester_kurzbz,
@@ -82,13 +89,13 @@ class PrestudentLib
 			'orgform_kurzbz'=> $prestudent_status->orgform_kurzbz,
 			'studienplan_id'=> $prestudent_status->studienplan_id,
 			'bestaetigtvon' => $bestaetigtvon,
-			'bestaetigtam' => $bestaetigtam
+			'bestaetigtam' => $bestaetigtam,
+			'statusgrund_id' => $statusgrund_id
 		]);
 
 		if (isError($result))
 			return $result;
 
-
 		//Verband anlegen
 		$result = $this->_ci->LehrverbandModel->load([
 			'studiengang_kz' => $student->studiengang_kz,
@@ -134,7 +141,7 @@ class PrestudentLib
 			]);
 		}
 
-		//noch nicht eingetragene Zeugnisnoten auf 9 setzen
+		// noch nicht eingetragene Zeugnisnoten auf 9 setzen
 		$result = $this->_ci->ZeugnisnoteModel->getZeugnisnoten($student->student_uid, $prestudent_status->studiensemester_kurzbz);
 		if (isError($result))
 			return $result;
@@ -166,9 +173,9 @@ class PrestudentLib
 		}
 
 
-		//Update Aktionen
+		// Update Aktionen
 
-		//StudentModel updaten
+		// StudentModel updaten
 		$this->_ci->StudentModel->update([
 			'student_uid' => $student->student_uid
 		], [
@@ -192,7 +199,7 @@ class PrestudentLib
 			'updatevon' => $insertvon
 		]);
 
-		//Benutzer inaktiv setzen
+		// Benutzer inaktiv setzen
 		$this->_ci->BenutzerModel->update([
 			'uid' =>  $student->student_uid
 		], [
@@ -206,17 +213,28 @@ class PrestudentLib
 		return success();
 	}
 
-	public function setUnterbrecher($prestudent_id, $studiensemester_kurzbz, $studierendenantrag_id, $insertvon = null)
-	{
+	public function setUnterbrecher(
+		$prestudent_id,
+		$studiensemester_kurzbz,
+		$studierendenantrag_id = null,
+		$insertvon = null,
+		$ausbildungssemester = null,
+		$statusgrund_id = null
+	) {
 		$ausbildungssemester_plus = 0;
+		
 		if (!$insertvon)
 			$insertvon = getAuthUID();
 
+
 		$result = $this->_ci->PrestudentstatusModel->getLastStatus($prestudent_id, $studiensemester_kurzbz);
+		
 		if (isError($result))
 			return $result;
+		
 		$result = getData($result);
-		if (!$result) {
+		
+		if (!$result) { // NOTE(chris): no status in target stdsem
 			//NOTE(manu): only valid if nextSemester focus max
 
 			$result = $this->_ci->PrestudentstatusModel->getLastStatus($prestudent_id);
@@ -224,7 +242,7 @@ class PrestudentLib
 				return $result;
 			$result = getData($result);
 
-			//check if ausbildungssemester is last
+			// check if ausbildungssemester is last
 			$this->_ci->StudiengangModel->addJoin('public.tbl_prestudent p', 'studiengang_kz');
 			$res = $this->_ci->StudiengangModel->loadWhere(['p.prestudent_id' => $prestudent_id]);
 			if(isError($res))
@@ -236,7 +254,7 @@ class PrestudentLib
 
 			$studiengang = current(getData($res));
 			$prestudent_status = current($result);
-			if($prestudent_status->ausbildungssemester + 1 < $studiengang->max_semester)
+			if ($prestudent_status->status_kurzbz != Prestudentstatus_model::STATUS_UNTERBRECHER && $prestudent_status->ausbildungssemester + 1 < $studiengang->max_semester)
 				$ausbildungssemester_plus = 1;
 
 			if(!$result)
@@ -246,34 +264,79 @@ class PrestudentLib
 					'studiensemester_kurzbz' => $studiensemester_kurzbz
 				]));
 			}
+		} elseif (current($result)->status_kurzbz == Prestudentstatus_model::STATUS_UNTERBRECHER) {
+			if ($studierendenantrag_id)
+			{
+				$resultAntrag = $this->_ci->StudierendenantragModel->load($studierendenantrag_id);
+				if (isError($resultAntrag))
+					return $resultAntrag;
+				$resultAntrag = getData($resultAntrag);
+				if (!$resultAntrag)
+					return error($this->_ci->p->t('studierendenantrag', 'error_no_antrag_found', ['id' => $studierendenantrag_id]));
+
+				$antrag = current($resultAntrag);
+				$anmerkung = current($result)->anmerkung . ' Wiedereinstieg ' . $antrag->datum_wiedereinstieg;
+
+				$result = $this->_ci->PrestudentstatusModel->update([
+					'prestudent_id' => $prestudent_id,
+					'status_kurzbz' => Prestudentstatus_model::STATUS_UNTERBRECHER,
+					'studiensemester_kurzbz' => $studiensemester_kurzbz,
+					'ausbildungssemester' => current($result)->ausbildungssemester
+				], [
+					'updatevon' => $insertvon,
+					'updateamum' => date('c'),
+					'anmerkung'=> $anmerkung
+				]);
+
+				if (isError($result))
+					return $result;
+			}
+
+			return success();
 		}
 
 		$prestudent_status = current($result);
+
+
 		$result = $this->_ci->StudentModel->loadWhere(['prestudent_id' => $prestudent_id]);
 
 		if (isError($result))
 			return $result;
+
 		$result = getData($result);
+		
 		if (!$result)
 			return error($this->_ci->p->t('studierendenantrag', 'error_no_student_for_prestudent', ['prestudent_id' => $prestudent_id]));
 
 		$student = current($result);
 
-		$resultAntrag = $this->_ci->StudierendenantragModel->load($studierendenantrag_id);
-		if (isError($resultAntrag))
-			return $resultAntrag;
-		$resultAntrag = getData($resultAntrag);
-		if (!$resultAntrag)
-			return error($this->_ci->p->t('studierendenantrag', 'error_no_antrag_found', ['id' => $studierendenantrag_id]));
 
-		$antrag = current($resultAntrag);
+		if ($studierendenantrag_id)
+		{
+			$resultAntrag = $this->_ci->StudierendenantragModel->load($studierendenantrag_id);
+			if (isError($resultAntrag))
+				return $resultAntrag;
+			$resultAntrag = getData($resultAntrag);
+			if (!$resultAntrag)
+				return error($this->_ci->p->t('studierendenantrag', 'error_no_antrag_found', ['id' => $studierendenantrag_id]));
 
-		//Status updaten
+			$antrag = current($resultAntrag);
+			$anmerkung = 'Wiedereinstieg ' . $antrag->datum_wiedereinstieg;
+		}
+		else
+			$anmerkung = '';
+
+		if ($ausbildungssemester)
+			$semester = $ausbildungssemester;
+		else
+			$semester = $prestudent_status->ausbildungssemester + $ausbildungssemester_plus;
+
+		// Status updaten
 		$result = $this->_ci->PrestudentstatusModel->insert([
 			'prestudent_id' => $prestudent_id,
 			'status_kurzbz' => Prestudentstatus_model::STATUS_UNTERBRECHER,
 			'studiensemester_kurzbz' => $studiensemester_kurzbz,
-			'ausbildungssemester' => $prestudent_status->ausbildungssemester + $ausbildungssemester_plus,
+			'ausbildungssemester' => $semester,
 			'datum' => date('c'),
 			'insertvon' => $insertvon,
 			'insertamum' => date('c'),
@@ -281,7 +344,8 @@ class PrestudentLib
 			'studienplan_id'=> $prestudent_status->studienplan_id,
 			'bestaetigtvon' => $insertvon,
 			'bestaetigtam' => date('c'),
-			'anmerkung'=> 'Wiedereinstieg ' . $antrag->datum_wiedereinstieg
+			'anmerkung'=> $anmerkung,
+			'statusgrund_id' => $statusgrund_id
 		]);
 
 		if (isError($result))
@@ -332,7 +396,7 @@ class PrestudentLib
 			]);
 		}
 
-		//noch nicht eingetragene Zeugnisnoten auf 9 setzen
+		// noch nicht eingetragene Zeugnisnoten auf 9 setzen
 		$result = $this->_ci->ZeugnisnoteModel->getZeugnisnoten($student->student_uid, $studiensemester_kurzbz);
 		if (isError($result))
 			return $result;
@@ -363,10 +427,9 @@ class PrestudentLib
 			}
 		}
 
+		// Update Aktionen
 
-		//Update Aktionen
-
-		//StudentModel updaten
+		// StudentModel updaten
 		$this->_ci->StudentModel->update([
 			'student_uid' => $student->student_uid
 		], [
@@ -409,4 +472,463 @@ class PrestudentLib
 
 		return success();
 	}
+
+	public function setStudent($prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id)
+	{
+		$authUID = getAuthUID();
+		$now = date('c');
+
+
+		$result = $this->_ci->PrestudentstatusModel->getLastStatus($prestudent_id);
+
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return error($this->_ci->p->t('studierendenantrag', 'error_no_prestudentstatus', [
+				'prestudent_id' => $prestudent_id
+			]));
+
+		$prestudent_status = current(getData($result));
+
+
+		$result = $this->_ci->StudentModel->loadWhere(['prestudent_id' => $prestudent_id]);
+
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return error($this->_ci->p->t('studierendenantrag', 'error_no_student_for_prestudent', ['prestudent_id' => $prestudent_id]));
+
+		$student = current(getData($result));
+
+
+		$this->_ci->load->library('VariableLib', ['uid' => $authUID]);
+		$semester_aktuell = $this->_ci->variablelib->getVar('semester_aktuell');
+
+
+		// Update Aktionen
+
+		// Status updaten
+		$result = $this->_ci->PrestudentstatusModel->insert([
+			'prestudent_id' => $prestudent_id,
+			'status_kurzbz' => Prestudentstatus_model::STATUS_STUDENT,
+			'studiensemester_kurzbz' => $studiensemester_kurzbz,
+			'statusgrund_id' => $statusgrund_id,
+			'ausbildungssemester' => $ausbildungssemester,
+			'datum' => $now,
+			'insertvon' => $authUID,
+			'insertamum' => $now,
+			'orgform_kurzbz'=> $prestudent_status->orgform_kurzbz,
+			'studienplan_id'=> $prestudent_status->studienplan_id,
+			'bestaetigtvon' => $authUID,
+			'bestaetigtam' => $now
+		]);
+
+		if (isError($result))
+			return $result;
+
+
+		// Student updaten
+		$result = $this->_ci->StudentModel->update([
+			'student_uid' => $student->student_uid
+		], [
+			'semester' => $ausbildungssemester,
+			'verband' => '',
+			'gruppe' => '',
+			'updatevon' => $authUID,
+			'updateamum' => $now
+		]);
+
+		if (isError($result))
+			return $result;
+
+
+		// Studentlehrverband updaten
+		$result = $this->_ci->StudentlehrverbandModel->update([
+			'student_uid' => $student->student_uid,
+			'studiensemester_kurzbz' => $semester_aktuell
+		], [
+			'semester' => $ausbildungssemester,
+			'verband' => '',
+			'gruppe' => '',
+			'updatevon' => $authUID,
+			'updateamum' => $now
+		]);
+
+		if (isError($result))
+			return $result;
+
+
+		// Benutzer updaten
+		$result = $this->_ci->BenutzerModel->load([$student->student_uid]);
+
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return error($this->_ci->p->t('person', 'error_noBenutzer'));
+
+		$benutzer = current(getData($result));
+		$updateData = [
+			'aktiv' => true,
+			'updateamum' => $now,
+			'updatevon' => $authUID
+		];
+		if (!$benutzer->aktiv) {
+			$updateData['updateaktivam'] = $now;
+			$updateData['updateaktivvon'] = $authUID;
+		}
+
+
+		$this->_ci->BenutzerModel->update([$student->student_uid], $updateData);
+
+		return success();
+	}
+
+	public function setFirstStudent(
+		$prestudent_id,
+		$studiensemester_kurzbz,
+		$ausbildungssemester,
+		$orgform_kurzbz,
+		$studienplan_id,
+		$statusgrund_id
+	) {
+		$this->_ci->PrestudentModel->addJoin('public.tbl_person p', 'person_id');
+		$this->_ci->PrestudentModel->addJoin('public.tbl_studiengang stg', 'studiengang_kz');
+		$result = $this->_ci->PrestudentModel->load($prestudent_id);
+
+		if (isError($result))
+			return $result;
+
+		if (!hasData($result))
+			return error('No prestudent');
+
+		$student_data = current(getData($result));
+
+
+		$authUID = getAuthUID();
+		$now = date('c');
+		$today = date('Y-m-d');
+
+		$jahr = mb_substr($studiensemester_kurzbz, 4, 2);
+
+
+		// Genererate Personenkennzeichen
+		$personenkennzeichen = $this->_ci->StudentModel->generateMatrikelnummer2(
+			$student_data->studiengang_kz,
+			$studiensemester_kurzbz,
+			$student_data->typ
+		);
+		if (isError($personenkennzeichen))
+			return $personenkennzeichen;
+		$personenkennzeichen = getData($personenkennzeichen);
+		
+		
+		// Generate UID
+		$uid = $this->_ci->StudentModel->generateUID(
+			$student_data->kurzbz,
+			$jahr,
+			$student_data->typ,
+			$personenkennzeichen,
+			$student_data->vorname,
+			$student_data->nachname
+		);
+		if (isError($uid))
+			return $uid;
+		$uid = getData($uid);
+
+
+		// Generate Matrikelnummer
+		$matrikelnummer = $this->_ci->BenutzerModel->generateMatrikelnummer(
+			$student_data->oe_kurzbz
+		);
+		if (isError($matrikelnummer))
+			return $matrikelnummer;
+		$matrikelnummer = getData($matrikelnummer);
+
+
+		// Generate Alias
+		$alias = '';
+		if (!defined('GENERATE_ALIAS_STUDENT')
+			|| GENERATE_ALIAS_STUDENT === true
+		) {
+			$result = $this->_ci->BenutzerModel->generateAliasFromName($student_data->vorname, $student_data->nachname);
+			if (isError($result))
+				return $result;
+			$alias = getData($result);
+		}
+
+		// Generate Activation Key
+		$activationkey = $this->_ci->BenutzerModel->generateActivationkey();
+
+
+		// Overwrite stuff
+		if (defined('SET_UID_AS_MATRIKELNUMMER')
+			&& SET_UID_AS_MATRIKELNUMMER)
+			$matrikelnummer = $uid;
+		if (defined('SET_UID_AS_PERSONENKENNZEICHEN')
+			&& SET_UID_AS_PERSONENKENNZEICHEN)
+			$personenkennzeichen = $uid;
+
+
+		// Update Person
+		$this->_ci->load->model('person/Person_model', 'PersonModel');
+		$result = $this->_ci->PersonModel->update([
+			'person_id' => $student_data->person_id,
+			'matr_nr' => null
+		], [
+			'matr_nr' => $matrikelnummer
+		]);
+
+		if (isError($result))
+			return $result;
+
+
+		// Add Benutzer
+		$result = $this->_ci->BenutzerModel->insert([
+			'uid' => $uid,
+			'person_id' => $student_data->person_id,
+			'aktiv' => true,
+			'aktivierungscode' => $activationkey,
+			'alias' => $alias,
+			'insertvon' => $authUID,
+			'insertamum' => $now,
+		]);
+
+		if (isError($result))
+			return $result;
+		
+
+		// Add Student
+		$result = $this->_ci->StudentModel->insert([
+			'student_uid' => $uid,
+			'matrikelnr' => $personenkennzeichen,
+			'prestudent_id' => $prestudent_id,
+			'studiengang_kz' => $student_data->studiengang_kz,
+			'semester' => $ausbildungssemester,
+			'verband' => ' ',
+			'gruppe' => ' ',
+			'insertvon' => $authUID,
+			'insertamum' => $now
+		]);
+
+		if (isError($result))
+			return $result;
+		
+
+		// Add Lehrverband if it does not exist
+		$result = $this->_ci->LehrverbandModel->load([' ', ' ', $ausbildungssemester, $student_data->studiengang_kz]);
+		
+		if (isError($result))
+			return $result;
+		
+		if (!hasData($result)) {
+			$result = $this->_ci->LehrverbandModel->insert([
+				'studiengang_kz' => $student_data->studiengang_kz,
+				'semester' => $ausbildungssemester,
+				'verband' => ' ',
+				'gruppe' => ' ',
+				'aktiv' => true
+			]);
+
+			if (isError($result))
+				return $result;
+		}
+
+
+		// Add Rolle
+		$result = $this->_ci->PrestudentstatusModel->insert([
+			'prestudent_id' => $prestudent_id,
+			'status_kurzbz' => Prestudentstatus_model::STATUS_STUDENT,
+			'studiensemester_kurzbz' => $studiensemester_kurzbz,
+			'ausbildungssemester' => $ausbildungssemester,
+			'orgform_kurzbz'=> $orgform_kurzbz,
+			'studienplan_id'=> $studienplan_id,
+			'datum' => $today,
+			'insertamum' => $now,
+			'insertvon' => $authUID,
+			'bestaetigtam' => $today,
+			'bestaetigtvon' => $authUID,
+			'statusgrund_id' => $statusgrund_id
+		]);
+
+		if (isError($result))
+			return $result;
+
+
+		// Add Studentlehrverband
+		$result = $this->_ci->StudentlehrverbandModel->insert([
+			'student_uid' => $uid,
+			'studiensemester_kurzbz' => $studiensemester_kurzbz,
+			'studiengang_kz' => $student_data->studiengang_kz,
+			'semester' => $ausbildungssemester,
+			'verband' => ' ',
+			'gruppe' => ' ',
+			'insertamum' => $now,
+			'insertvon' => $authUID
+		]);
+
+		if (isError($result))
+			return $result;
+
+		return success();
+	}
+
+	public function setDiplomand($prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id)
+	{
+		return $this->setBasic(
+			getAuthUID(),
+			date('c'),
+			Prestudentstatus_model::STATUS_DIPLOMAND,
+			$prestudent_id,
+			$studiensemester_kurzbz,
+			$ausbildungssemester,
+			$statusgrund_id
+		);
+	}
+
+	public function setAbsolvent($prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id)
+	{
+		$authUID = getAuthUID();
+		$now = date('c');
+
+
+		$result = $this->setBasic(
+			$authUID,
+			$now,
+			Prestudentstatus_model::STATUS_ABSOLVENT,
+			$prestudent_id,
+			$studiensemester_kurzbz,
+			$ausbildungssemester,
+			$statusgrund_id
+		);
+
+		if (isError($result))
+			return $result;
+
+		
+		// Load Student
+		$result = $this->_ci->StudentModel->loadWhere(['prestudent_id' => $prestudent_id]);
+
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return error($this->_ci->p->t('studierendenantrag', 'error_no_student_for_prestudent', ['prestudent_id' => $prestudent_id]));
+
+		$student = current(getData($result));
+
+
+		// Benutzer inaktiv setzen
+		$this->_ci->BenutzerModel->update([
+			'uid' =>  $student->student_uid
+		], [
+			'aktiv' => false,
+			'updateaktivvon' => $authUID,
+			'updateaktivam' => $now,
+			'updatevon' => $authUID,
+			'updateamum' => $now
+		]);
+
+		if (isError($result))
+			return $result;
+
+		return success();
+	}
+
+	public function setBewerber($prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id)
+	{
+		$result = $this->setBasic(
+			getAuthUID(),
+			date('c'),
+			Prestudentstatus_model::STATUS_BEWERBER,
+			$prestudent_id,
+			$studiensemester_kurzbz,
+			$ausbildungssemester,
+			$statusgrund_id
+		);
+
+		if (isError($result))
+			return $result;
+
+		if (SEND_BEWERBER_INFOMAIL) {
+			// TODO(chris): IMPLEMENT!
+		}
+
+		return success();
+	}
+
+	public function setAufgenommener($prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id)
+	{
+		return $this->setBasic(
+			getAuthUID(),
+			date('c'),
+			Prestudentstatus_model::STATUS_AUFGENOMMENER,
+			$prestudent_id,
+			$studiensemester_kurzbz,
+			$ausbildungssemester,
+			$statusgrund_id
+		);
+	}
+
+	public function setAbgewiesener($prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id)
+	{
+		return $this->setBasic(
+			getAuthUID(),
+			date('c'),
+			Prestudentstatus_model::STATUS_ABGEWIESENER,
+			$prestudent_id,
+			$studiensemester_kurzbz,
+			$ausbildungssemester,
+			$statusgrund_id
+		);
+	}
+
+	public function setWartender($prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id)
+	{
+		return $this->setBasic(
+			getAuthUID(),
+			date('c'),
+			Prestudentstatus_model::STATUS_WARTENDER,
+			$prestudent_id,
+			$studiensemester_kurzbz,
+			$ausbildungssemester,
+			$statusgrund_id
+		);
+	}
+
+	protected function setBasic($authUID, $now, $status_kurzbz, $prestudent_id, $studiensemester_kurzbz, $ausbildungssemester, $statusgrund_id = null)
+	{
+		$result = $this->_ci->PrestudentstatusModel->getLastStatus($prestudent_id);
+
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return error($this->_ci->p->t('studierendenantrag', 'error_no_prestudentstatus', [
+				'prestudent_id' => $prestudent_id
+			]));
+
+		$prestudent_status = current(getData($result));
+
+
+		// Update Aktionen
+
+		// Status updaten
+		$result = $this->_ci->PrestudentstatusModel->insert([
+			'prestudent_id' => $prestudent_id,
+			'status_kurzbz' => $status_kurzbz,
+			'studiensemester_kurzbz' => $studiensemester_kurzbz,
+			'ausbildungssemester' => $ausbildungssemester,
+			'datum' => $now,
+			'insertvon' => $authUID,
+			'insertamum' => $now,
+			'orgform_kurzbz'=> $prestudent_status->orgform_kurzbz,
+			'studienplan_id'=> $prestudent_status->studienplan_id,
+			'bestaetigtvon' => $authUID,
+			'bestaetigtam' => $now,
+			'statusgrund_id' => $statusgrund_id
+		]);
+
+		if (isError($result))
+			return $result;
+
+		return success();
+	}
 }

application/libraries/PrestudentstatusCheckLib.php

@@ -0,0 +1,922 @@
+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+class PrestudentstatusCheckLib
+{
+	const INTERESSENT_STATUS = 'Interessent';
+	const BEWERBER_STATUS = 'Bewerber';
+	const AUFGENOMMENER_STATUS = 'Aufgenommener';
+	const UNTERBRECHER_STATUS = 'Unterbrecher';
+	const STUDENT_STATUS = 'Student';
+	const DIPLOMAND_STATUS = 'Diplomand';
+	const ABSOLVENT_STATUS = 'Absolvent';
+	const ABBRECHER_STATUS = 'Abbrecher';
+
+	private $_ci;
+	private $_statusAbfolgeVorStudent = [self::INTERESSENT_STATUS, self::BEWERBER_STATUS, self::AUFGENOMMENER_STATUS];
+	private $_endStatusArr = [self::ABSOLVENT_STATUS, self::ABBRECHER_STATUS];
+
+	private $_cache_history = [];
+
+	/**
+	 * Object initialization
+	 */
+	public function __construct()
+	{
+		$this->_ci =& get_instance();
+
+		$this->_ci->load->model('organisation/Studiensemester_model', 'StudiensemesterModel');
+		$this->_ci->load->model('person/Person_model', 'PersonModel');
+		$this->_ci->load->model('crm/Prestudentstatus_model', 'PrestudentstatusModel');
+		$this->_ci->load->model('crm/Prestudent_model', 'PrestudentModel');
+		$this->_ci->load->model('crm/Student_model', 'StudentModel');
+		$this->_ci->load->model('organisation/Studienplan_model', 'StudienplanModel');
+		$this->_ci->load->model('codex/Bismeldestichtag_model', 'BismeldestichtagModel');
+	}
+
+	/**
+	 * Checks if a status add is valid.
+	 * @return object error if invalid
+	 */
+	public function checkStatusAdd(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_status_studiensemester_kurzbz,
+		$new_status_datum,
+		$new_status_ausbildungssemester,
+		$new_studienplan_id
+	) {
+		$studentName = '';
+
+		$nameRes = $this->_ci->PersonModel->loadPrestudent($prestudent_id);
+
+		if (hasData($nameRes))
+		{
+			$nameData = getData($nameRes)[0];
+			$studentName = $nameData->vorname.' '.$nameData->nachname;
+		}
+
+		// Datum des neuen Status darf nicht in Vergangenheit liegen, sonst Probleme wenn neues Datum < Bismeldedatum
+		if (new DateTime($new_status_datum) < new DateTime('today'))
+			return error($studentName . $this->_ci->p->t('lehre', 'error_entryInPast'));
+
+		return $this->_checkIfValidStatusHistory(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_status_studiensemester_kurzbz,
+			$new_status_datum,
+			$new_status_ausbildungssemester,
+			$new_studienplan_id
+		);
+	}
+
+	/**
+	 * Checks if a status update is valid.
+	 * @return error if invalid
+	 */
+	public function checkStatusUpdate(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_status_studiensemester_kurzbz,
+		$new_status_datum,
+		$new_status_ausbildungssemester,
+		$new_studienplan_id,
+		$old_status_studiensemester,
+		$old_status_ausbildungssemester
+	) {
+
+		return $this->_checkIfValidStatusHistory(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_status_studiensemester_kurzbz,
+			$new_status_datum,
+			$new_status_ausbildungssemester,
+			$new_studienplan_id,
+			$old_status_studiensemester,
+			$old_status_ausbildungssemester
+		);
+	}
+
+	/**
+	 * Checks if a student already exists.
+	 *
+	 * @param integer				$prestudent_id
+	 *
+	 * @return stdClass
+	 */
+	public function checkIfExistingStudent($prestudent_id)
+	{
+		$result = $this->_ci->StudentModel->loadWhere([
+			'prestudent_id' => $prestudent_id
+		]);
+
+		if (isError($result))
+			return $result;
+
+		return success(hasData($result));
+	}
+
+	/**
+	 * Check if Reihungstest was admitted
+	 *
+	 * @param stdClass $prestudent
+	 *
+	 * @return stdClass
+	 */
+	public function checkIfAngetreten($prestudent)
+	{
+		return success($prestudent->reihungstestangetreten);
+	}
+
+	/**
+	 * Check if ZGV-Code is registered
+	 *
+	 * @param stdClass $prestudent
+	 *
+	 * @return stdClass
+	 */
+	public function checkIfZGVEingetragen($prestudent_person)
+	{
+		return success((boolean)$prestudent_person->zgv_code);
+	}
+
+	/**
+	 * Check if Master ZGV-Code is registered
+	 *
+	 * @param stdClass $prestudent
+	 *
+	 * @return booleans $zgv_code, error if not registered
+	 */
+	public function checkIfZGVEingetragenMaster($prestudent)
+	{
+		$this->_ci->load->model('organisation/Studiengang_model', 'StudiengangModel');
+		$result = $this->_ci->StudiengangModel->load($prestudent->studiengang_kz);
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return error($this->_ci->p->t('studierendenantrag', 'error_no_stg', ['studiengang_kz' => $prestudent->studiengang_kz]));
+
+		if (current($result->retval)->typ != 'm')
+			return success(true); // NOTE(chris): we only test master stgs, all other stgs should default to true
+
+		return success((boolean)$prestudent->zgvmas_code);
+	}
+
+	/**
+	 * Checks if a bewerber status already exists.
+	 *
+	 * @param integer $prestudent_id
+	 *
+	 * @return stdClass
+	 */
+	public function checkIfExistingBewerberstatus($prestudent_id)
+	{
+		$result = $this->_ci->PrestudentstatusModel->loadWhere([
+			'prestudent_id' => $prestudent_id,
+			'status_kurzbz' => Prestudentstatus_model::STATUS_BEWERBER
+		]);
+		if (isError($result))
+			return $result;
+
+		return success(hasData($result));
+	}
+
+
+	/**
+	 * Checks if status aufgenommen already exists.
+	 *
+	 * @param integer $prestudent_id
+	 *
+	 * @return stdClass
+	 */
+	public function checkIfExistingAufgenommenerstatus($prestudent_id)
+	{
+		$result = $this->_ci->PrestudentstatusModel->loadWhere([
+			'prestudent_id' => $prestudent_id,
+			'status_kurzbz' => Prestudentstatus_model::STATUS_AUFGENOMMENER
+		]);
+		if (isError($result))
+			return $result;
+
+		return success(hasData($result));
+	}
+
+	/**
+	 * Checks if the last Bewerber status and the last Aufgenommener status
+	 * have the same studiensemester and ausbildungssemester.
+	 *
+	 * Attention:
+	 * If one of those two status is missing the function returns true!
+	 *
+	 * @param integer				$prestudent_id
+	 *
+	 * @return stdClass
+	 */
+	public function checkIfLastBewerberAndAufgenommenerShareSemesters($prestudent_id)
+	{
+		$this->_ci->PrestudentstatusModel->addOrder('datum', 'DESC');
+		$this->_ci->PrestudentstatusModel->addOrder('insertamum', 'DESC');
+		$this->_ci->PrestudentstatusModel->addLimit(1);
+		$result = $this->_ci->PrestudentstatusModel->loadWhere([
+			'prestudent_id' => $prestudent_id,
+			'status_kurzbz' => Prestudentstatus_model::STATUS_BEWERBER
+		]);
+
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return success(true);
+
+		$bewerber = current(getData($result));
+
+		$this->_ci->PrestudentstatusModel->addOrder('datum', 'DESC');
+		$this->_ci->PrestudentstatusModel->addOrder('insertamum', 'DESC');
+		$this->_ci->PrestudentstatusModel->addLimit(1);
+		$result = $this->_ci->PrestudentstatusModel->loadWhere([
+			'prestudent_id' => $prestudent_id,
+			'status_kurzbz' => Prestudentstatus_model::STATUS_AUFGENOMMENER
+		]);
+
+		if (isError($result))
+			return $result;
+		if (!hasData($result))
+			return success(true);
+
+		$aufgenommener = current(getData($result));
+
+		return success(
+			$bewerber->studiensemester_kurzbz == $aufgenommener->studiensemester_kurzbz
+			&& $bewerber->ausbildungssemester == $aufgenommener->ausbildungssemester
+		);
+	}
+
+	/**
+	 * Check if Bismeldestichtag erreicht
+	 *
+	 * @param DateTime				$statusDatum
+	 * @param string				$studiensemester_kurzbz
+	 *
+	 * @return stdClass
+	 */
+	public function checkIfMeldestichtagErreicht($statusDatum, $studiensemester_kurzbz = null)
+	{
+		$result = $this->_ci->BismeldestichtagModel->checkIfMeldestichtagErreicht($statusDatum, $studiensemester_kurzbz);
+		
+		if (isError($result))
+			return $result;
+		
+		return success(getData($result) == "1");
+	}
+
+	/**
+	 * Runs all checks on Status History and saves it in cache.
+	 *
+	 * @param integer				$prestudent_id
+	 * @param string				$status_kurzbz
+	 * @param DateTime				$new_date
+	 * @param string				$new_studiensemester_kurzbz
+	 * @param integer				$new_ausbildungssemester
+	 * @param string				$old_studiensemester_kurzbz
+	 * @param integer				$old_ausbildungssemester
+	 *
+	 * @return stdClass
+	 */
+	protected function prepareStatusHistory(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_date,
+		$new_studiensemester_kurzbz,
+		$new_ausbildungssemester,
+		$old_studiensemester_kurzbz,
+		$old_ausbildungssemester
+	) {
+		// Generate key for caching
+		$primary = implode('|', [
+			$prestudent_id,
+			$status_kurzbz,
+			$new_date->format('Y-m-d'),
+			$new_studiensemester_kurzbz,
+			$new_ausbildungssemester,
+			$old_studiensemester_kurzbz,
+			$old_ausbildungssemester
+		]);
+
+		if (isset($this->_cache_history[$primary]))
+			return $this->_cache_history[$primary];
+
+		$this->_ci->load->model('crm/Prestudentstatus_model', 'PrestudentstatusModel');
+
+		// Get the history
+		$result = $this->_ci->PrestudentstatusModel->getHistoryWithNewOrEditedState(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_date,
+			$new_studiensemester_kurzbz,
+			$new_ausbildungssemester,
+			$old_studiensemester_kurzbz,
+			$old_ausbildungssemester
+		);
+
+		if (isError($result))
+			return $result;
+
+		if (!hasData($result))
+			return error('This is impossible');
+
+		$history = getData($result);
+		$historyCount = count($history);
+
+		// Run checks
+		$checks = [
+			'timesequence' => true,
+			'laststatus' => true,
+			'unterbrechersemester' => true,
+			'abbrechersemester' => true,
+			'diplomant' => true,
+			'student' => true
+		];
+
+		for ($n = 0, $c = 1; $c < $historyCount; $n++, $c++) {
+			if (!$checks['timesequence']
+				&& !$checks['laststatus']
+				&& !$checks['unterbrechersemester']
+				&& !$checks['abbrechersemester']
+				&& !$checks['diplomant']
+				&& !$checks['student']
+			)
+				break; // early out
+
+			$next = $history[$n];
+			$current = $history[$c];
+
+			// Zeitabfolge ungültig?
+			if ($checks['timesequence']
+				&& $next->start < $current->start
+			)
+				$checks['timesequence'] = false;
+
+			// Abbrecher- oder Absolventenstatus muss Endstatus sein
+			if ($checks['laststatus']
+				&& in_array($current->status_kurzbz, [self::ABSOLVENT_STATUS, self::ABBRECHER_STATUS])
+			)
+				$checks['laststatus'] = false;
+
+			// wenn Unterbrecher auf Unterbrecher folgt, muss Ausbildungssemester gleich sein
+			if ($checks['unterbrechersemester']
+				&& $current->status_kurzbz == self::UNTERBRECHER_STATUS
+				&& $next->status_kurzbz == self::UNTERBRECHER_STATUS
+				&& $current->ausbildungssemester != $next->ausbildungssemester
+			)
+				$checks['unterbrechersemester'] = false;
+
+			// wenn Abbrecher auf Unterbrecher folgt, muss Ausbildungssemester gleich sein
+			if ($checks['abbrechersemester']
+				&& $current->status_kurzbz == self::UNTERBRECHER_STATUS
+				&& $next->status_kurzbz == self::ABBRECHER_STATUS
+				&& $current->ausbildungssemester != $next->ausbildungssemester
+			)
+				$checks['abbrechersemester'] = false;
+
+			if (($checks['diplomant']
+				|| $checks['student'])
+				&& $next->status_kurzbz == self::STUDENT_STATUS
+			) {
+				$restl_stati = array_unique(array_column(array_slice($history, $c), 'status_kurzbz'));
+
+				// keine Studenten nach Diplomand Status
+				if ($checks['diplomant']
+					&& in_array(self::DIPLOMAND_STATUS, $restl_stati)
+				)
+					$checks['diplomant'] = false;
+
+				// vor Studentenstatus müssen bestimmte Status vorhanden sein
+				if ($checks['student']
+					&& array_values(array_intersect($restl_stati, $this->_statusAbfolgeVorStudent)) != array_values($this->_statusAbfolgeVorStudent)
+				)
+					$checks['student'] = false;
+			}
+		}
+
+		$this->_cache_history[$primary] = success($checks);
+
+		return success($checks);
+	}
+
+	/**
+	 * Checks if the time sequence of the status history is valid.
+	 *
+	 * @param integer				$prestudent_id
+	 * @param string				$status_kurzbz
+	 * @param DateTime				$new_date
+	 * @param string				$new_studiensemester_kurzbz
+	 * @param integer				$new_ausbildungssemester
+	 * @param string				$old_studiensemester_kurzbz
+	 * @param integer				$old_ausbildungssemester
+	 *
+	 * @return stdClass
+	 */
+	public function checkStatusHistoryTimesequence(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_date,
+		$new_studiensemester_kurzbz,
+		$new_ausbildungssemester,
+		$old_studiensemester_kurzbz,
+		$old_ausbildungssemester
+	) {
+		$result = $this->prepareStatusHistory(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_date,
+			$new_studiensemester_kurzbz,
+			$new_ausbildungssemester,
+			$old_studiensemester_kurzbz,
+			$old_ausbildungssemester
+		);
+
+		if (isError($result))
+			return $result;
+
+		return success(getData($result)['timesequence']);
+	}
+
+	/**
+	 * Checks if the last status of the status history is not Abbrecher or
+	 * Absolvent.
+	 *
+	 * @param integer				$prestudent_id
+	 * @param string				$status_kurzbz
+	 * @param DateTime				$new_date
+	 * @param string				$new_studiensemester_kurzbz
+	 * @param integer				$new_ausbildungssemester
+	 * @param string				$old_studiensemester_kurzbz
+	 * @param integer				$old_ausbildungssemester
+	 *
+	 * @return stdClass
+	 */
+	public function checkStatusHistoryLaststatus(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_date,
+		$new_studiensemester_kurzbz,
+		$new_ausbildungssemester,
+		$old_studiensemester_kurzbz,
+		$old_ausbildungssemester
+	) {
+		$result = $this->prepareStatusHistory(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_date,
+			$new_studiensemester_kurzbz,
+			$new_ausbildungssemester,
+			$old_studiensemester_kurzbz,
+			$old_ausbildungssemester
+		);
+
+		if (isError($result))
+			return $result;
+
+		return success(getData($result)['laststatus']);
+	}
+
+	/**
+	 * Checks if two consecutively Unterbrecher have the same
+	 * ausbildungssemester in the status history.
+	 *
+	 * @param integer				$prestudent_id
+	 * @param string				$status_kurzbz
+	 * @param DateTime				$new_date
+	 * @param string				$new_studiensemester_kurzbz
+	 * @param integer				$new_ausbildungssemester
+	 * @param string				$old_studiensemester_kurzbz
+	 * @param integer				$old_ausbildungssemester
+	 *
+	 * @return stdClass
+	 */
+	public function checkStatusHistoryUnterbrechersemester(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_date,
+		$new_studiensemester_kurzbz,
+		$new_ausbildungssemester,
+		$old_studiensemester_kurzbz,
+		$old_ausbildungssemester
+	) {
+		$result = $this->prepareStatusHistory(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_date,
+			$new_studiensemester_kurzbz,
+			$new_ausbildungssemester,
+			$old_studiensemester_kurzbz,
+			$old_ausbildungssemester
+		);
+
+		if (isError($result))
+			return $result;
+
+		return success(getData($result)['unterbrechersemester']);
+	}
+
+	/**
+	 * Checks if an Unterbrecher followed by an Abbrecher have the same
+	 * ausbildungssemester in the status history.
+	 *
+	 * @param integer				$prestudent_id
+	 * @param string				$status_kurzbz
+	 * @param DateTime				$new_date
+	 * @param string				$new_studiensemester_kurzbz
+	 * @param integer				$new_ausbildungssemester
+	 * @param string				$old_studiensemester_kurzbz
+	 * @param integer				$old_ausbildungssemester
+	 *
+	 * @return stdClass
+	 */
+	public function checkStatusHistoryAbbrechersemester(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_date,
+		$new_studiensemester_kurzbz,
+		$new_ausbildungssemester,
+		$old_studiensemester_kurzbz,
+		$old_ausbildungssemester
+	) {
+		$result = $this->prepareStatusHistory(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_date,
+			$new_studiensemester_kurzbz,
+			$new_ausbildungssemester,
+			$old_studiensemester_kurzbz,
+			$old_ausbildungssemester
+		);
+
+		if (isError($result))
+			return $result;
+
+		return success(getData($result)['abbrechersemester']);
+	}
+
+	/**
+	 * Checks if no Diplomant is followed by a Student in the status history.
+	 *
+	 * @param integer				$prestudent_id
+	 * @param string				$status_kurzbz
+	 * @param DateTime				$new_date
+	 * @param string				$new_studiensemester_kurzbz
+	 * @param integer				$new_ausbildungssemester
+	 * @param string				$old_studiensemester_kurzbz
+	 * @param integer				$old_ausbildungssemester
+	 *
+	 * @return stdClass
+	 */
+	public function checkStatusHistoryDiplomant(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_date,
+		$new_studiensemester_kurzbz,
+		$new_ausbildungssemester,
+		$old_studiensemester_kurzbz,
+		$old_ausbildungssemester
+	) {
+		$result = $this->prepareStatusHistory(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_date,
+			$new_studiensemester_kurzbz,
+			$new_ausbildungssemester,
+			$old_studiensemester_kurzbz,
+			$old_ausbildungssemester
+		);
+
+		if (isError($result))
+			return $result;
+
+		return success(getData($result)['diplomant']);
+	}
+
+	/**
+	 * Checks if a Student precedes given stati in the status history.
+	 *
+	 * @param integer				$prestudent_id
+	 * @param string				$status_kurzbz
+	 * @param DateTime				$new_date
+	 * @param string				$new_studiensemester_kurzbz
+	 * @param integer				$new_ausbildungssemester
+	 * @param string				$old_studiensemester_kurzbz
+	 * @param integer				$old_ausbildungssemester
+	 *
+	 * @return stdClass
+	 */
+	public function checkStatusHistoryStudent(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_date,
+		$new_studiensemester_kurzbz,
+		$new_ausbildungssemester,
+		$old_studiensemester_kurzbz,
+		$old_ausbildungssemester
+	) {
+		// TODO(chris): TEST
+		$result = $this->prepareStatusHistory(
+			$prestudent_id,
+			$status_kurzbz,
+			$new_date,
+			$new_studiensemester_kurzbz,
+			$new_ausbildungssemester,
+			$old_studiensemester_kurzbz,
+			$old_ausbildungssemester
+		);
+
+		if (isError($result))
+			return $result;
+
+		return success(getData($result)['student']);
+	}
+
+	/**
+	 * Checks if Personenkennzeichen is set correctly.
+	 *
+	 * @param integer				$prestudent_id
+	 *
+	 * @return stdClass
+	 */
+	public function checkPersonenkennzeichen($prestudent_id)
+	{
+		// TODO(chris): TEST
+		$this->_ci->PrestudentstatusModel->addSelect('tbl_prestudentstatus.prestudent_id');
+		$this->_ci->PrestudentstatusModel->addSelect('tbl_student.matrikelnr');
+
+		$this->_ci->PrestudentstatusModel->addJoin('public.tbl_student', 'prestudent_id');
+
+		$this->_ci->PrestudentstatusModel->addOrder('tbl_prestudentstatus.datum', 'DESC');
+		$this->_ci->PrestudentstatusModel->addOrder('tbl_prestudentstatus.insertamum', 'DESC');
+		$this->_ci->PrestudentstatusModel->addOrder('tbl_prestudentstatus.ext_id', 'DESC');
+		
+		$this->_ci->PrestudentstatusModel->addLimit(1);
+		
+		$result = $this->_ci->PrestudentstatusModel->loadWhere([
+			'tbl_prestudentstatus.prestudent_id' => $prestudent_id,
+			'tbl_prestudentstatus.status_kurzbz' => self::STATUS_STUDENT
+		]);
+
+		if (isError($result))
+			return $result;
+
+		if (!hasData($result))
+			return success(true); // Not a student yet so no wrong personenkennzeichen
+
+		$data = current(getData($result));
+
+		$jahr = $this->_ci->StudiensemesterModel->getStudienjahrNumberFromStudiensemester($data->studiensemester_kurzbz);
+
+
+		return success($jahr == mb_substr($data->matrikelnr, 0, 2));
+	}
+
+	/**
+	 * Checks if Orgform of Student status and Bewerber status match.
+	 *
+	 * @param integer				$prestudent_id
+	 *
+	 * @return stdClass
+	 */
+	public function checkStudentOrgform($prestudent_id)
+	{
+		// TODO(chris): TEST
+		$result = $this->_ci->PrestudentstatusModel->getBewerberWhereOrgformNotStudent($prestudent_id);
+
+		if (isError($result))
+			return $result;
+
+		return success(!hasData($result));
+	}
+
+	/**
+	 * Check if History of StatusData is valid
+	 * @param integer $prestudent_id
+	 * @return error if not valid, array StatusArr if valid
+	 */
+	private function _checkIfValidStatusHistory(
+		$prestudent_id,
+		$status_kurzbz,
+		$new_status_studiensemester_kurzbz,
+		$new_status_datum,
+		$new_status_ausbildungssemester,
+		$new_studienplan_id,
+		$old_status_studiensemester = null,
+		$old_status_ausbildungssemester = null
+	) {
+		//get start studiensemester
+		$semResult = $this->_ci->StudiensemesterModel->load([
+			'studiensemester_kurzbz' => $new_status_studiensemester_kurzbz
+		]);
+
+		if (isError($semResult))
+		{
+			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
+			return $this->outputJson(getError($semResult));
+		}
+
+		if (!hasData($semResult)) {
+			return error($this->_ci->p->t('lehre', 'error_noStudiensemester') . $new_status_studiensemester_kurzbz);
+		}
+
+		$studiensemester = getData($semResult)[0];
+		$new_status_semesterstart = $studiensemester->start;
+
+		// get studienplan orgform
+		$new_studienplan_orgform_kurzbz = '';
+		$this->_ci->StudienplanModel->addSelect('orgform_kurzbz');
+		$stplResult = $this->_ci->StudienplanModel->load([
+			'studienplan_id' => $new_studienplan_id
+		]);
+
+		if (isError($stplResult))
+		{
+			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
+			return $this->outputJson(getError($stplResult));
+		}
+
+		if (hasData($stplResult)) $new_studienplan_orgform_kurzbz = getData($stplResult)[0]->orgform_kurzbz;
+
+
+		//get all prestudentstati
+		$resultPs = $this->_ci->PrestudentstatusModel->getAllPrestudentstatiWithStudiensemester($prestudent_id);
+
+		if (isError($resultPs)) return $resultPs;
+
+		$resultArr = hasData($resultPs) ? getData($resultPs) : [];
+		$statusArr = [];
+
+		$newStatusInserted = false;
+		$new_status_datum_form = new DateTime($new_status_datum);
+		$new_status_semesterstart_form = new DateTime($new_status_semesterstart);
+
+		if (!isEmptyArray($resultArr))
+		{
+			// neuen Status zum Hinzufügen
+			$first_status = $resultArr[0];
+			$neuer_status = new stdClass();
+			$neuer_status->status_kurzbz = $status_kurzbz;
+			$neuer_status->studiensemester_kurzbz = $new_status_studiensemester_kurzbz;
+			$neuer_status->datum = $new_status_datum;
+			$neuer_status->ausbildungssemester = $new_status_ausbildungssemester;
+			$neuer_status->studienplan_orgform_kurzbz = $new_studienplan_orgform_kurzbz;
+			$neuer_status->matrikelnr = $first_status->matrikelnr;
+			$neuer_status->vorname = $first_status->vorname;
+			$neuer_status->nachname = $first_status->nachname;
+
+			// Status, welcher gerade geändert wird, holen
+			$status_to_change = array_filter(
+				$resultArr,
+				function ($status) use ($status_kurzbz, $old_status_studiensemester, $old_status_ausbildungssemester) {
+					return
+						$status->status_kurzbz == $status_kurzbz
+						&& $status->studiensemester_kurzbz == $old_status_studiensemester
+						&& $status->ausbildungssemester == $old_status_ausbildungssemester;
+				}
+			);
+
+			if (!isEmptyArray($status_to_change))
+			{
+				$status_to_change_index = key($status_to_change);
+
+				// wenn sich Studiensemester und Ausbildungssemester nicht geändert haben...
+				if ($new_status_studiensemester_kurzbz == $old_status_studiensemester
+					&& $new_status_ausbildungssemester == $old_status_ausbildungssemester)
+				{
+					// ...neuen status an selber stelle einfügen wie zu ändernder Status
+					$resultArr[$status_to_change_index] = (object)array_merge((array)$resultArr[$status_to_change_index], (array)$neuer_status);
+					$newStatusInserted = true;
+				}
+				else
+				{
+					// bei Status mit neuem Semester: alten Status entfernen
+					unset($resultArr[$status_to_change_index]);
+				}
+			}
+		}
+
+		foreach ($resultArr as $row)
+		{
+			$studiensemester_start = new DateTime($row->studiensemester_start);
+			$status_datum = new DateTime($row->datum);
+
+			if ($new_status_datum_form >= $status_datum && $new_status_semesterstart_form >= $studiensemester_start)
+			{
+				if (!$newStatusInserted)
+				{
+					// neuer Status erstmals größer als Datum eines bestehenden Status -> neuen Status EINMALIG einfügen für spätere Statusprüfung
+					$statusArr[] = $neuer_status;
+					$newStatusInserted = true;
+				}
+				$statusArr[] = $row;
+			}
+			elseif ($new_status_datum_form <= $status_datum && $new_status_semesterstart_form <= $studiensemester_start)
+			{
+				$statusArr[] = $row;
+			}
+			else
+			{
+				// Zeitabfolge ungültig, Fehler
+				return error($this->_ci->p->t('lehre', 'error_statuseintrag_zeitabfolge'));
+			}
+		}
+
+		// erster Studentstatus
+		$ersterStudent = null;
+
+		// Über alle gespeicherten Status gehen und Statusabfolge prüfen
+		for ($i = 0; $i < count($statusArr); $i++)
+		{
+			$curr_status = $statusArr[$i];
+			$curr_status_kurzbz = $curr_status->status_kurzbz;
+			$curr_status_ausbildungssemester = $curr_status->ausbildungssemester;
+			$next_idx = $i - 1; //absteigend sortiert, nächster Status ist vorheriger Eintrag
+			$next_status = isset($statusArr[$next_idx]) ? $statusArr[$next_idx] : null;
+
+			$studentName = $curr_status->vorname . ' ' . $curr_status->nachname;
+
+			if ($curr_status_kurzbz == self::STUDENT_STATUS) $ersterStudent = $curr_status;
+
+			// Abbrecher- oder Absolventenstatus muss Endstatus sein
+			if (isset($next_status) && in_array($curr_status_kurzbz, $this->_endStatusArr))
+			{
+				return error($studentName . ' ' . $this->_ci->p->t('lehre', 'error_endstatus'));
+			}
+
+			// wenn Unterbrecher auf Unterbrecher folgt, muss Ausbildungssemester gleich sein
+			if
+				($curr_status_kurzbz == self::UNTERBRECHER_STATUS && isset($next_status) && $next_status->status_kurzbz == self::UNTERBRECHER_STATUS
+				&& $curr_status_ausbildungssemester != $next_status->ausbildungssemester)
+			{
+				return error($studentName . ' ' . $this->_ci->p->t('lehre', 'error_consecutiveUnterbrecher'));
+			}
+
+			// wenn Abbrecher auf Unterbrecher folgt, muss Ausbildungssemester gleich sein
+			if (isset($next_status)
+				&& $curr_status_kurzbz == self::UNTERBRECHER_STATUS
+				&& $next_status->status_kurzbz == self::ABBRECHER_STATUS && $curr_status_ausbildungssemester != $next_status->ausbildungssemester)
+			{
+				return error($studentName . ' ' . $this->_ci->p->t('lehre', 'error_consecutiveUnterbrecherAbbrecher'));
+			}
+
+			if (isset($next_status) && $next_status->status_kurzbz == self::STUDENT_STATUS)
+			{
+				$restliche_status_obj = array_slice($statusArr, $i);
+				$restliche_status = array_unique(array_column($restliche_status_obj, 'status_kurzbz'));
+				$status_intersected = array_intersect($restliche_status, $this->_statusAbfolgeVorStudent);
+
+				// Vor Studentstatus darf kein Diplomand Status vorhanden sein
+				if (in_array(self::DIPLOMAND_STATUS, $restliche_status))
+				{
+					return error($studentName . ' ' . $this->_ci->p->t('lehre', 'error_consecutiveDiplomandStudent'));
+				}
+
+				// Vor Studentstatus müssen bestimmte Status vorhanden sein
+				if (array_values($status_intersected) != array_values(array_reverse($this->_statusAbfolgeVorStudent)))
+				{
+					return error(
+						$studentName . ' '
+						. $this->_ci->p->t('lehre', 'error_wrongStatusOrderBeforeStudent', array(implode(', ', $this->_statusAbfolgeVorStudent)))
+					);
+				}
+			}
+		}
+
+		if (isset($ersterStudent))
+		{
+			$studentName = $ersterStudent->vorname . ' ' . $ersterStudent->nachname;
+
+			// wenn erster Studentstatus, checken ob Personenkennzeichen passt
+			$studienjahrNumber = $this->_ci->StudiensemesterModel->getStudienjahrNumberFromStudiensemester($ersterStudent->studiensemester_kurzbz);
+
+			if ($studienjahrNumber != mb_substr($ersterStudent->matrikelnr, 0, 2))
+			{
+				return error($studentName . ' ' . $this->_ci->p->t('lehre', 'error_personenkennzeichenPasstNichtZuStudiensemester'));
+			}
+
+			// wenn erster Studentstatus, checken ob Orgform des Bewerbers mit Studenten übereinstimmt
+			if (!isEmptyArray(
+				array_filter(
+					$restliche_status_obj,
+					function ($s) use ($ersterStudent) {
+						return
+							$s->status_kurzbz == self::BEWERBER_STATUS
+							&& (
+								$s->studienplan_orgform_kurzbz != $ersterStudent->studienplan_orgform_kurzbz
+							);
+					}
+				)
+			)
+			)
+			{
+				return error($studentName . ' ' . $this->_ci->p->t('lehre', 'error_bewerberOrgformUngleichStudentOrgform'));
+			}
+		}
+
+		return $resultPs;
+	}
+}

application/libraries/SearchBarLib.php

@@ -358,6 +358,35 @@ EOSC;
 	 */
 	private function _student($searchstr, $type)
 	{
+		$dbModel = new DB_Model();
+
+		$students = $dbModel->execReadOnlyQuery('
+		SELECT
+			\''.$type.'\' AS type,
+			s.student_uid AS uid,
+			s.matrikelnr,
+			p.person_id AS person_id,
+			p.vorname || \' \' || p.nachname AS name,
+			k.kontakt as email ,
+			p.foto
+			FROM public.tbl_student s
+			JOIN public.tbl_benutzer b ON(b.uid = s.student_uid)
+			JOIN public.tbl_person p USING(person_id)
+			LEFT JOIN (
+				SELECT kontakt, person_id
+				FROM public.tbl_kontakt
+					WHERE kontakttyp = \'email\'
+			) as k USING(person_id)
+				WHERE b.uid ILIKE \'%'.$dbModel->escapeLike($searchstr).'%\'
+			OR p.vorname ILIKE \'%'.$dbModel->escapeLike($searchstr).'%\'
+			OR p.nachname ILIKE \'%'.$dbModel->escapeLike($searchstr).'%\'
+					GROUP BY type, s.student_uid, s.matrikelnr, p.person_id, name, email, p.foto
+	');
+
+		// If something has been found then return it
+		if (hasData($students)) return getData($students);
+
+		// Otherwise return an empty array
 		return array();
 	}
 
@@ -366,6 +395,41 @@ EOSC;
 	 */
 	private function _prestudent($searchstr, $type)
 	{
+		$dbModel = new DB_Model();
+
+		$prestudent = $dbModel->execReadOnlyQuery('
+		SELECT
+			\''.$type.'\' AS type,
+			ps.prestudent_id,
+			ps.studiengang_kz,
+			p.person_id AS person_id,
+			b.uid,
+			p.vorname || \' \' || p.nachname AS name,
+			(
+				SELECT kontakt
+				FROM public.tbl_kontakt
+				WHERE kontakttyp = \'email\'
+				AND person_id = p.person_id
+				LIMIT 1
+			) as email,
+			p.foto,
+			sg.bezeichnung
+			FROM public.tbl_prestudent ps
+			LEFT JOIN public.tbl_student s USING (prestudent_id)
+			LEFT JOIN public.tbl_benutzer b ON (b.uid = s.student_uid)
+			JOIN public.tbl_person p ON (p.person_id = ps.person_id)
+			LEFT JOIN public.tbl_studiengang sg ON (sg.studiengang_kz = ps.studiengang_kz)
+			WHERE b.uid ILIKE \'%'.$dbModel->escapeLike($searchstr).'%\'
+				OR p.vorname ILIKE \'%'.$dbModel->escapeLike($searchstr).'%\'
+				OR p.nachname ILIKE \'%'.$dbModel->escapeLike($searchstr).'%\'
+				or cast(ps.prestudent_id as text) ILIKE \'%'.$dbModel->escapeLIKE($searchstr).'%\'
+			GROUP BY type, b.uid, ps.prestudent_id, ps.studiengang_kz, sg.bezeichnung, s.student_uid, s.matrikelnr, p.person_id, name, email, p.foto
+			');
+
+		// If something has been found then return it
+		if (hasData($prestudent)) return getData($prestudent);
+
+		// Otherwise return an empty array
 		return array();
 	}
 

application/libraries/UDFLib.php

@@ -65,6 +65,8 @@ class UDFLib
 
 	private $_udfUniqueId; // Property that contains the UDF widget unique id
 
+	private $_definition_cache = [];
+
 	/**
 	 * Gets CI instance
 	 */
@@ -157,7 +159,7 @@ class UDFLib
 					$found = false; // used to check if the field is found or not in the json schema
 
 					$this->_sortJsonSchemas($jsonSchemasArray); // Sort the list of UDF by sort property
-					
+
 					// Loops through json schemas
 					foreach ($jsonSchemasArray as $jsonSchema)
 					{
@@ -292,7 +294,7 @@ class UDFLib
 				// Checks if the requiredPermissions is available and it is a valid array or a valid string
 				if (isset($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER})
 					&& (!isEmptyArray($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER})
-					|| !isEmptyString($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER})))
+						|| !isEmptyString($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER})))
 				{
 					// Then check if the user has the permissions to read such UDF
 					if (!$this->_readAllowed($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER}))
@@ -353,7 +355,7 @@ class UDFLib
 				// Checks if the requiredPermissions is available and it is a valid array or a valid string
 				if (isset($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER})
 					&& (!isEmptyArray($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER})
-					|| !isEmptyString($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER})))
+						|| !isEmptyString($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER})))
 				{
 					// Then check if the user has the permissions to write such UDF
 					if (!$this->_writeAllowed($decodedUDFDefinition->{self::REQUIRED_PERMISSIONS_PARAMETER}))
@@ -613,6 +615,162 @@ class UDFLib
 		);
 	}
 
+	/**
+	 * Gets the UDF definitions for a model
+	 *
+	 * @param DB_Model			$targetModel
+	 *
+	 * @return stdClass
+	 */
+	public function getDefinitionForModel($targetModel)
+	{
+		$dbTable = $targetModel->getDbTable();
+		if (!isset($this->_definition_cache[$dbTable])) {
+			$this->_ci->load->model('system/UDF_model', 'UDFModel');
+			list($schema, $table) = explode('.', $dbTable);
+			$result = $this->_ci->UDFModel->loadWhere([
+				'schema' => $schema,
+				'table' => $table
+			]);
+			if (isError($result))
+				return $result;
+			if (!hasData($result))
+				$this->_definition_cache[$dbTable] = [];
+			else
+				$this->_definition_cache[$dbTable] = json_decode(current($result->retval)->jsons, true);
+		}
+		return success($this->_definition_cache[$dbTable]);
+	}
+
+	/**
+	 * Gets the UDFs for db entry with translated params and resolved listValues for dropdowns
+	 *
+	 * @param DB_Model			$targetModel
+	 * @param mixed				$id
+	 *
+	 * @return stdClass
+	 */
+	public function getFieldArray($targetModel, $id)
+	{
+		// Load Libraries
+		$this->_ci->load->library('PhrasesLib');
+		$this->_ci->load->library('PermissionLib');
+
+		$result = $this->getDefinitionForModel($targetModel);
+		if (isError($result))
+			return $result;
+		$definitions = $result->retval;
+
+		usort($definitions, function ($a, $b) {
+			return $a[self::SORT] - $b[self::SORT];
+		});
+
+		$values = $targetModel->getUDFs($id);
+
+		$fields = [];
+		foreach ($definitions as $field) {
+			// check read permissions
+			if (!$this->_ci->permissionlib->hasAtLeastOne(
+				$field[self::REQUIRED_PERMISSIONS_PARAMETER],
+				self::PERMISSION_TABLE_METHOD,
+				self::PERMISSION_TYPE_READ
+			))
+				continue;
+
+			// set value
+			if (isset($values[$field[self::NAME]])) {
+				$field['value'] = $values[$field[self::NAME]];
+			} elseif (isset($field['defaultValue'])) {
+				$field['value'] = $field['defaultValue'];
+			} elseif (isset($field[self::TYPE]) && $field[self::TYPE] == 'checkbox') {
+				$field['value'] = false;
+			} else {
+				$field['value'] = '';
+			}
+
+			// translate params
+			foreach ([self::LABEL, self::TITLE, self::PLACEHOLDER] as $key) {
+				if (isset($field[$key])) {
+					$res = $this->_ci->phraseslib->getPhrases(self::PHRASES_APP_NAME, getUserLanguage(), $field[$key], null, null, 'no');
+					if (hasData($res))
+						$field[$key] = current(getData($res))->text;
+				}
+			}
+
+			// check write permissions
+			$field['disabled'] = !$this->_ci->permissionlib->hasAtLeastOne(
+				$field[self::REQUIRED_PERMISSIONS_PARAMETER],
+				self::PERMISSION_TABLE_METHOD,
+				self::PERMISSION_TYPE_WRITE
+			);
+
+			// set listValues for dropdowns
+			if (isset($field[self::LIST_VALUES])) {
+				if (isset($field[self::LIST_VALUES]['enum'])) {
+					$field['options'] = $field[self::LIST_VALUES]['enum'];
+				} elseif (isset($field[self::LIST_VALUES]['sql'])) {
+					$res = $this->_ci->UDFModel->execReadOnlyQuery($field[self::LIST_VALUES]['sql']);
+					$field['options'] = hasData($res) ? getData($res) : [];
+				}
+			}
+
+			// add to array
+			$fields[] = $field;
+		}
+		return success($fields);
+	}
+
+	/**
+	 * Gets a validation config array for CI form_validation
+	 *
+	 * @param DB_Model			$targetModel
+	 * @param array				(optional) $filter
+	 *
+	 * @return stdClass
+	 */
+	public function getCiValidations($targetModel, $filter = null)
+	{
+		$result = $this->getDefinitionForModel($targetModel);
+		if (isError($result))
+			return $result;
+		$definitions = getData($result);
+
+		$result = [];
+		foreach ($definitions as $def) {
+			if ($filter && !isset($filter[$def['name']]))
+				continue;
+			$validations = [];
+			if (isset($def['requiredPermissions']))
+				$validations[] = 'has_write_permissions[' . implode(',', $def['requiredPermissions']) . ']';
+			if (isset($def['required']))
+				$validations[] = 'required';
+			if (isset($def['validation'])) {
+				if (isset($def['validation']['max-value']))
+					$validations[] = 'less_than_equal_to[' . $def['validation']['max-value'] . ']';
+				if (isset($def['validation']['min-value']))
+					$validations[] = 'greater_than_equal_to[' . $def['validation']['min-value'] . ']';
+				if (isset($def['validation']['max-length']))
+					$validations[] = 'max_length[' . $def['validation']['max-length'] . ']';
+				if (isset($def['validation']['min-length']))
+					$validations[] = 'min_length[' . $def['validation']['min-length'] . ']';
+				if (isset($def['validation']['regex']) && is_array($def['validation']['regex'])) {
+					foreach ($def['validation']['regex'] as $regex) {
+						if ($regex['language'] == 'php') {
+							$validations[] = 'regex_match[' . $regex['expression'] . ']';
+						}
+					}
+				}
+			}
+			if ($validations)
+				$result[] = [
+					'field' => $def['name'],
+					'label' => $def['title'],
+					'rules' => $validations
+				];
+		}
+		return success($result);
+	}
+
 	// -------------------------------------------------------------------------------------------------
 	// Private methods
 	//
@@ -841,7 +999,7 @@ class UDFLib
 		$htmlParameters[HTMLWidget::HTML_ID] = $jsonSchema->{self::NAME};
 		$htmlParameters[HTMLWidget::HTML_NAME] = $jsonSchema->{self::NAME};
 	}
-	
+
 	/**
 	 * Sort the list of UDF by sort property
 	 */
@@ -864,7 +1022,7 @@ class UDFLib
 			return ($a->{self::SORT} < $b->{self::SORT}) ? -1 : 1;
 		});
 	}
-	
+
 	/**
 	 * Loads the UDF description by the given schema and table
 	 */

application/libraries/issues/PlausicheckDefinitionLib.php

@@ -15,7 +15,6 @@ class PlausicheckDefinitionLib
 		'AktSemesterNull' => 'AktSemesterNull',
 		'AktiverStudentOhneStatus' => 'AktiverStudentOhneStatus',
 		'AusbildungssemPrestudentUngleichAusbildungssemStatus' => 'AusbildungssemPrestudentUngleichAusbildungssemStatus',
-		'BewerberNichtZumRtAngetreten' => 'BewerberNichtZumRtAngetreten',
 		'DatumAbschlusspruefungFehlt' => 'DatumAbschlusspruefungFehlt',
 		'DatumSponsionFehlt' => 'DatumSponsionFehlt',
 		'DatumStudiensemesterFalscheReihenfolge' => 'DatumStudiensemesterFalscheReihenfolge',
@@ -33,8 +32,10 @@ class PlausicheckDefinitionLib
 		'PrestudentMischformOhneOrgform' => 'PrestudentMischformOhneOrgform',
 		'StgPrestudentUngleichStgStudienplan' => 'StgPrestudentUngleichStgStudienplan',
 		'StgPrestudentUngleichStgStudent' => 'StgPrestudentUngleichStgStudent',
-		'StudentstatusNachAbbrecher' => 'StudentstatusNachAbbrecher'
+		'StudentstatusNachAbbrecher' => 'StudentstatusNachAbbrecher',
+		'DualesStudiumOhneMarkierung' => 'DualesStudiumOhneMarkierung'
 		//'StudienplanUngueltig' => 'StudienplanUngueltig'
+		//'BewerberNichtZumRtAngetreten' => 'BewerberNichtZumRtAngetreten'
 	);
 
 	/**

application/libraries/issues/PlausicheckProducerLib.php

@@ -12,19 +12,25 @@ class PlausicheckProducerLib
 
 	private $_ci; // ci instance
 	private $_extensionName; // name of extension
-	private $_app; // name of application
-	private $_konfiguration = array(); // konfigratio parameters
+	private $_konfiguration = []; // configuration parameters
+	private $_fehlerLibMappings = []; // mappings of fehler and libraries for producing them
+	private $_isForResolutionCheck = false; // mappings of fehler and libraries for producing them
 
 	public function __construct($params = null)
 	{
 		// set extension name if called from extension
 		if (isset($params['extensionName'])) $this->_extensionName = $params['extensionName'];
+		if (isset($params['fehlerLibMappings'])) $this->_fehlerLibMappings = $params['fehlerLibMappings'];
+		if (isset($params['isForResolutionCheck'])) $this->_isForResolutionCheck = $params['isForResolutionCheck'];
 
 		// set application
 		$app = isset($params['app']) ? $params['app'] : null;
 
 		$this->_ci =& get_instance(); // get ci instance
 
+		// load libraries
+		$this->_ci->load->library('IssuesLib');
+
 		// load models
 		$this->_ci->load->model('system/Fehlerkonfiguration_model', 'FehlerkonfigurationModel');
 
@@ -42,6 +48,52 @@ class PlausicheckProducerLib
 		}
 	}
 
+	/**
+	 * Produces multiple plausicheck issues at once and saved them to db.
+	 * @param array $params passed to each plausicheck
+	 * @return result object with occured error and info
+	 */
+	public function producePlausicheckIssues($params)
+	{
+		$result = new StdClass();
+		$result->errors = [];
+		$result->infos = [];
+
+		foreach ($this->_fehlerLibMappings as $fehler_kurzbz => $libName)
+		{
+			$plausicheckRes = $this->producePlausicheckIssue(
+				$libName,
+				$fehler_kurzbz,
+				$params
+			);
+
+			if (hasData($plausicheckRes))
+			{
+				$plausicheckData = getData($plausicheckRes);
+
+				foreach ($plausicheckData as $plausiData)
+				{
+					// get the data needed for issue production
+					$person_id = isset($plausiData['person_id']) ? $plausiData['person_id'] : null;
+					$oe_kurzbz = isset($plausiData['oe_kurzbz']) ? $plausiData['oe_kurzbz'] : null;
+					$fehlertext_params = isset($plausiData['fehlertext_params']) ? $plausiData['fehlertext_params'] : null;
+					$resolution_params = isset($plausiData['resolution_params']) ? $plausiData['resolution_params'] : null;
+
+					// write the issue
+					$addIssueRes = $this->_ci->issueslib->addFhcIssue($fehler_kurzbz, $person_id, $oe_kurzbz, $fehlertext_params, $resolution_params);
+
+					// log if error, or log info if inserted new issue
+					if (isError($addIssueRes))
+						$result->errors[] = getError($addIssueRes);
+					elseif (hasData($addIssueRes) && is_integer(getData($addIssueRes)))
+						$result->infos[] = "Plausicheck issue " . $fehler_kurzbz . " successfully produced, person_id: " . $person_id;
+				}
+			}
+		}
+
+		return $result;
+	}
+
 	/**
 	 * Executes plausicheck using a given library, returns the result.
 	 * @param $libName string name of library producing the issue
@@ -67,7 +119,10 @@ class PlausicheckProducerLib
 		$config = isset($this->_konfiguration[$fehler_kurzbz]) ? $this->_konfiguration[$fehler_kurzbz] : null;
 
 		// load library connected to fehlercode
-		$this->_ci->load->library($issuesLibPath . $libName, $config);
+		$this->_ci->load->library(
+			$issuesLibPath . $libName,
+			['configurationParams' => $config, 'isForResolutionCheck' => $this->_isForResolutionCheck]
+		);
 
 		$lowercaseLibName = mb_strtolower($libName);
 

application/libraries/issues/PlausicheckResolverLib.php

@@ -0,0 +1,136 @@
+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+class PlausicheckResolverLib
+{
+	const CI_PATH = 'application';
+	const CI_LIBRARY_FOLDER = 'libraries';
+	const EXTENSIONS_FOLDER = 'extensions';
+	const ISSUE_RESOLVERS_FOLDER = 'issues/resolvers';
+	const CHECK_ISSUE_RESOLVED_METHOD_NAME = 'checkIfIssueIsResolved';
+
+	private $_ci; // ci instance
+	private $_extensionName; // name of extension
+	private $_codeLibMappings = []; // mappings for issues which explicitly defined resolver
+	private $_codeProducerLibMappings = []; // mappings for issues which are resolved as produced
+
+	public function __construct($params = null)
+	{
+		// set extension name if called from extension
+		if (isset($params['extensionName'])) $this->_extensionName = $params['extensionName'];
+		if (isset($params['codeLibMappings'])) $this->_codeLibMappings = $params['codeLibMappings'];
+		if (isset($params['codeProducerLibMappings'])) $this->_codeProducerLibMappings = $params['codeProducerLibMappings'];
+
+		$this->_ci =& get_instance(); // get ci instance
+
+		$this->_ci->load->library('IssuesLib');
+		$this->_ci->load->library('issues/PlausicheckProducerLib', ['extensionName' => $this->_extensionName, 'isForResolutionCheck' => true]);
+	}
+
+	/**
+	 * Reseolves multiple plausicheck issues at once.
+	 * @param array $codeLibMappings contains fehler type to check and library responsible for check (fehlercode => libName)
+	 * @param array $openIssues passed issues to resolve
+	 * @return result object with occured error and info
+	 */
+	public function resolvePlausicheckIssues($openIssues)
+	{
+		$result = new StdClass();
+		$result->errors = [];
+		$result->infos = [];
+
+		foreach ($openIssues as $issue)
+		{
+			// add person id and oe kurzbz automatically as params, merge it with additional params
+			// decode bewerbung_parameter into assoc array
+			$params = array_merge(
+				array('issue_id' => $issue->issue_id, 'issue_person_id' => $issue->person_id, 'issue_oe_kurzbz' => $issue->oe_kurzbz),
+				isset($issue->behebung_parameter) ? json_decode($issue->behebung_parameter, true) : array()
+			);
+
+			$issueResolved = false;
+
+			// ignore if Fehlercode is not in libmappings (shouldn't be checked)
+			if (isset($this->_codeLibMappings[$issue->fehlercode]))
+			{
+				$libName = $this->_codeLibMappings[$issue->fehlercode];
+
+				// if called from extension (extension name set), path includes extension names
+				$libRootPath = isset($this->_extensionName) ? self::EXTENSIONS_FOLDER . '/' . $this->_extensionName . '/' : '';
+
+				// path for loading issue library
+				$issuesLibPath = $libRootPath . self::ISSUE_RESOLVERS_FOLDER . '/';
+
+				// file path of library for check if file exists
+				$issuesLibFilePath = DOC_ROOT . self::CI_PATH
+					. '/' . $libRootPath . self::CI_LIBRARY_FOLDER . '/' . self::ISSUE_RESOLVERS_FOLDER . '/' . $libName . '.php';
+
+				// check if library file exists
+				if (!file_exists($issuesLibFilePath))
+				{
+					// log error and continue with next issue if not
+					$result->errors[] = "Issue library file " . $issuesLibFilePath . " does not exist";
+					continue;
+				}
+
+				// load library connected to fehlercode
+				$this->_ci->load->library($issuesLibPath . $libName);
+
+				$lowercaseLibName = mb_strtolower($libName);
+
+				// check if method is defined in library class
+				if (!is_callable(array($this->_ci->{$lowercaseLibName}, self::CHECK_ISSUE_RESOLVED_METHOD_NAME)))
+				{
+					// log error and continue with next issue if not
+					$result->errors[] = "Method " . self::CHECK_ISSUE_RESOLVED_METHOD_NAME . " is not defined in library $lowercaseLibName";
+					continue;
+				}
+
+				// call the function for checking for issue resolution
+				$issueResolvedRes = $this->_ci->{$lowercaseLibName}->{self::CHECK_ISSUE_RESOLVED_METHOD_NAME}($params);
+
+				if (isError($issueResolvedRes))
+				{
+					$result->errors[] = getError($issueResolvedRes);
+				}
+				else
+				{
+					$issueResolved = getData($issueResolvedRes) === true;
+				}
+			}
+			elseif (isset($this->_codeProducerLibMappings[$issue->fehlercode]))
+			{
+				$libName = $this->_codeProducerLibMappings[$issue->fehlercode];
+
+				$issueResolvedRes = $this->_ci->plausicheckproducerlib->producePlausicheckIssue(
+					$libName,
+					$issue->fehler_kurzbz,
+					$params
+				);
+
+				if (isError($issueResolvedRes))
+				{
+					$result->errors[] = getError($issueResolvedRes);
+				}
+				else
+				{
+					$issueResolved = !hasData($issueResolvedRes);
+				}
+			}
+
+			// set issue to resolved if needed
+			if ($issueResolved)
+			{
+				$behobenRes = $this->_ci->issueslib->setBehoben($issue->issue_id, null);
+
+				if (isError($behobenRes))
+					$result->errors[] = getError($behobenRes);
+				else
+					$result->infos[] = "Issue " . $issue->issue_id . " successfully resolved";
+			}
+		}
+
+		return $result;
+	}
+}

application/libraries/issues/plausichecks/AbbrecherAktiv.php

@@ -9,83 +9,21 @@ require_once('PlausiChecker.php');
  */
 class AbbrecherAktiv extends PlausiChecker
 {
-	public function executePlausiCheck($params)
-	{
-		$results = array();
+	protected $_base_sql = "
+		SELECT
+			pre.person_id, pre.prestudent_id, stg.oe_kurzbz AS prestudent_stg_oe_kurzbz
+		FROM
+			public.tbl_prestudentstatus pre_status
+			JOIN public.tbl_prestudent pre USING(prestudent_id)
+			JOIN public.tbl_student student USING(prestudent_id)
+			JOIN public.tbl_benutzer benutzer on(benutzer.uid=student.student_uid)
+			JOIN public.tbl_studiengang stg ON pre.studiengang_kz = stg.studiengang_kz
+		WHERE
+			pre_status.status_kurzbz ='Abbrecher'
+			AND benutzer.aktiv=true";
 
-		// get parameters from config
-		$exkludierte_studiengang_kz = isset($this->_config['exkludierteStudiengaenge']) ? $this->_config['exkludierteStudiengaenge'] : null;
-
-		// pass parameters needed for plausicheck
-		$studiengang_kz = isset($params['studiengang_kz']) ? $params['studiengang_kz'] : null;
-
-		// get all students failing the plausicheck
-		$prestudentRes = $this->getAbbrecherAktiv($studiengang_kz, null, $exkludierte_studiengang_kz);
-
-		if (isError($prestudentRes)) return $prestudentRes;
-
-		if (hasData($prestudentRes))
-		{
-			$prestudents = getData($prestudentRes);
-
-			// populate results with data necessary for writing issues
-			foreach ($prestudents as $prestudent)
-			{
-				$results[] = array(
-					'person_id' => $prestudent->person_id,
-					'oe_kurzbz' => $prestudent->prestudent_stg_oe_kurzbz,
-					'fehlertext_params' => array('prestudent_id' => $prestudent->prestudent_id),
-					'resolution_params' => array('prestudent_id' => $prestudent->prestudent_id)
-				);
-			}
-		}
-
-		// return the results
-		return success($results);
-	}
-
-	/**
-	 * Abbrecher cannot be active.
-	 * @param studiengang_kz int if check is to be executed for certain Studiengang
-	 * @param prestudent_id int if check is to be executed only for one prestudent
-	 * @param exkludierte_studiengang_kz array if certain Studiengänge have to be excluded from check
-	 * @return success with prestudents or error
-	 */
-	public function getAbbrecherAktiv($studiengang_kz = null, $prestudent_id = null, $exkludierte_studiengang_kz = null)
-	{
-		$params = array();
-
-		$qry = "
-			SELECT
-				pre.person_id, pre.prestudent_id, stg.oe_kurzbz AS prestudent_stg_oe_kurzbz
-			FROM
-				public.tbl_prestudentstatus pre_status
-				JOIN public.tbl_prestudent pre USING(prestudent_id)
-				JOIN public.tbl_student student USING(prestudent_id)
-				JOIN public.tbl_benutzer benutzer on(benutzer.uid=student.student_uid)
-				JOIN public.tbl_studiengang stg ON pre.studiengang_kz = stg.studiengang_kz
-			WHERE
-				pre_status.status_kurzbz ='Abbrecher'
-				AND benutzer.aktiv=true";
-
-		if (isset($studiengang_kz))
-		{
-			$qry .= " AND stg.studiengang_kz = ?";
-			$params[] = $studiengang_kz;
-		}
-
-		if (isset($prestudent_id))
-		{
-			$qry .= " AND pre.prestudent_id = ?";
-			$params[] = $prestudent_id;
-		}
-
-		if (isset($exkludierte_studiengang_kz) && !isEmptyArray($exkludierte_studiengang_kz))
-		{
-			$qry .= " AND stg.studiengang_kz NOT IN ?";
-			$params[] = $exkludierte_studiengang_kz;
-		}
-
-		return $this->_db->execReadOnlyQuery($qry, $params);
-	}
+	protected $_config_params = ['exkludierteStudiengaenge' => " AND stg.studiengang_kz NOT IN ?"];
+	protected $_params_for_checking = ['studiengang_kz' => " AND stg.studiengang_kz = ?", 'prestudent_id' => " AND pre.prestudent_id = ?"];
+	protected $_fehlertext_params = ['prestudent_id'];
+	protected $_resolution_params = ['prestudent_id'];
 }

application/libraries/issues/plausichecks/DualesStudiumOhneMarkierung.php

@@ -0,0 +1,143 @@
+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+require_once('PlausiChecker.php');
+
+/**
+ *
+ */
+class DualesStudiumOhneMarkierung extends PlausiChecker
+{
+	public function executePlausiCheck($params)
+	{
+		$results = array();
+
+		// get parameters from config
+		$exkludierte_studiengang_kz = isset($this->_config['exkludierteStudiengaenge']) ? $this->_config['exkludierteStudiengaenge'] : null;
+
+		// pass parameters needed for plausicheck
+		$studiensemester_kurzbz = isset($params['studiensemester_kurzbz']) ? $params['studiensemester_kurzbz'] : null;
+		$studiengang_kz = isset($params['studiengang_kz']) ? $params['studiengang_kz'] : null;
+
+		// get all students failing the plausicheck
+		$prestudentRes = $this->getDualesStudiumOhneMarkierung(
+			$studiensemester_kurzbz,
+			$studiengang_kz,
+			null,
+			$exkludierte_studiengang_kz
+		);
+
+		if (isError($prestudentRes)) return $prestudentRes;
+
+		if (hasData($prestudentRes))
+		{
+			$prestudents = getData($prestudentRes);
+
+			// populate results with data necessary for writing issues
+			foreach ($prestudents as $prestudent)
+			{
+				$results[] = array(
+					'person_id' => $prestudent->person_id,
+					'oe_kurzbz' => $prestudent->prestudent_stg_oe_kurzbz,
+					'fehlertext_params' => array(
+						'prestudent_id' => $prestudent->prestudent_id,
+						'studienplan' => $prestudent->studienplan
+					),
+					'resolution_params' => array(
+						'prestudent_id' => $prestudent->prestudent_id,
+						'studiensemester_kurzbz' => $prestudent->studiensemester_kurzbz
+					)
+				);
+			}
+		}
+
+		// return the results
+		return success($results);
+	}
+
+	/**
+	 * All prestudents in dual Studiengang should have set the dual flag to true.
+	 * @param studiensemester_kurzbz string check is to be executed for certain Studiensemester
+	 * @param studiengang_kz int if check is to be executed for certain Studiengang
+	 * @param prestudent_id int if check is to be executed only for one prestudent
+	 * @param exkludierte_studiengang_kz array if certain Studiengänge have to be excluded from check
+	 * @return success with prestudents or error
+	 */
+	public function getDualesStudiumOhneMarkierung(
+		$studiensemester_kurzbz,
+		$studiengang_kz = null,
+		$prestudent_id = null,
+		$exkludierte_studiengang_kz = null
+	) {
+		$params = array($studiensemester_kurzbz);
+
+		$qry = "
+			SELECT
+				DISTINCT pre.person_id, pre.prestudent_id,
+				stpl.bezeichnung AS studienplan,
+				status.studiensemester_kurzbz,
+				status.ausbildungssemester,
+				stg.oe_kurzbz AS prestudent_stg_oe_kurzbz
+			FROM
+				public.tbl_prestudent pre
+				JOIN public.tbl_prestudentstatus status USING(prestudent_id)
+				JOIN public.tbl_person USING(person_id)
+				JOIN lehre.tbl_studienplan stpl USING(studienplan_id)
+				JOIN public.tbl_studiengang stg ON pre.studiengang_kz = stg.studiengang_kz
+				JOIN public.tbl_studiensemester sem USING(studiensemester_kurzbz)
+			WHERE
+				(stpl.orgform_kurzbz = 'DUA' OR status.orgform_kurzbz = 'DUA')
+				AND pre.dual = FALSE
+				AND status.studiensemester_kurzbz=?
+				AND pre.bismelden
+				AND stg.melderelevant
+				AND NOT EXISTS (
+					SELECT 1
+					FROM
+						public.tbl_prestudentstatus
+						JOIN lehre.tbl_studienplan USING(studienplan_id)
+						JOIN public.tbl_studiensemester USING(studiensemester_kurzbz)
+					WHERE
+						prestudent_id = pre.prestudent_id
+						AND
+						(
+							-- if there is a newer non-dual status, dual has not to be set
+							(
+								(
+									tbl_studienplan.orgform_kurzbz <> stpl.orgform_kurzbz
+									OR status.orgform_kurzbz <> tbl_prestudentstatus.orgform_kurzbz
+								)
+								AND
+								(
+									tbl_studiensemester.ende::date > sem.ende::date
+									OR (tbl_studiensemester.ende::date = sem.ende::date AND tbl_prestudentstatus.datum::date > status.datum::date)
+								)
+							)
+							OR
+								-- exclude Abgewiesene - they are not reported
+								tbl_prestudentstatus.status_kurzbz = 'Abgewiesener'
+						)
+				)";
+
+		if (isset($studiengang_kz))
+		{
+			$qry .= " AND stg.studiengang_kz = ?";
+			$params[] = $studiengang_kz;
+		}
+
+		if (isset($prestudent_id))
+		{
+			$qry .= " AND pre.prestudent_id = ?";
+			$params[] = $prestudent_id;
+		}
+
+		if (isset($exkludierte_studiengang_kz) && !isEmptyArray($exkludierte_studiengang_kz))
+		{
+			$qry .= " AND stg.studiengang_kz NOT IN ?";
+			$params[] = $exkludierte_studiengang_kz;
+		}
+
+		return $this->_db->execReadOnlyQuery($qry, $params);
+	}
+}

application/libraries/issues/plausichecks/InaktiverStudentAktiverStatus.php

@@ -67,6 +67,7 @@ class InaktiverStudentAktiverStatus extends PlausiChecker
 		$prestudent_id = null,
 		$exkludierte_studiengang_kz = null
 	) {
+		$this->_ci->load->model('organisation/studiensemester_model', 'StudiensemesterModel');
 		$aktStudiensemesterRes = $this->_ci->StudiensemesterModel->getAkt();
 
 		if (isError($aktStudiensemesterRes)) return $aktStudiensemesterRes;

application/libraries/issues/plausichecks/PlausiChecker.php

@@ -6,15 +6,25 @@
 abstract class PlausiChecker
 {
 	protected $_ci; // code igniter instance
-	protected $_config; // configuration parameters for this plausicheck
+	protected $_config; // all applicable configuration parameters for this plausicheck
 	protected $_db; // database for queries
 
-	public function __construct($configurationParams = null)
+	protected $_isForResolutionCheck; // if true, additional parameters only needed for resolution are checked
+
+	protected $_config_params = []; // name of all config params which should be applied for this plausicheck, with sql [name] => [sql]
+	protected $_params_for_checking = []; // name of all passed params for checking, with sql [name] => [sql]
+
+	protected $_fehlertext_params = []; // parameter names for fehlertext params used for this plausicheck
+	protected $_resolution_params = []; // parameter names for resolution params used for this plausicheck
+
+	public function __construct($params = null)
 	{
 		$this->_ci =& get_instance(); // get code igniter instance
 
 		// set configuration
-		$this->_config = $configurationParams;
+		$this->_config = $params['configurationParams'] ?? [];
+
+		$this->_isForResolutionCheck = $params['isForResolutionCheck'] ?? false;
 
 		// get database for queries
 		$this->_db = new DB_Model();
@@ -25,5 +35,83 @@ abstract class PlausiChecker
 	 * @param $paramsForChecking array parameters needed for executing the check
 	 * @return array with objects which failed the plausi check
 	 */
-	abstract public function executePlausiCheck($paramsForChecking);
+	public function executePlausiCheck($paramsForChecking)
+	{
+		$results = [];
+		$params = [];
+		$qry = $this->_base_sql;
+
+		if ($this->_isForResolutionCheck == true)
+		{
+			foreach ($this->_resolution_params as $resParam)
+			{
+				if (!isset($paramsForChecking[$resParam]))
+					return error("$resParam missing".(isset($paramsForChecking['issue_id']) ? ", issue ID: ".$paramsForChecking['issue_id'] : ""));
+			}
+		}
+
+		// add config params to query
+		if (isset($this->_config_params) && !isEmptyArray($this->_config_params))
+		{
+			foreach ($this->_config_params as $param_name => $param_sql)
+			{
+				if (isset($this->_config[$param_name]))
+				{
+					$qry .= $param_sql;
+					$params[] = $this->_config[$param_name];
+				}
+			}
+		}
+
+		// add check params to query
+		if (isset($this->_params_for_checking) && !isEmptyArray($this->_params_for_checking))
+		{
+			foreach ($this->_params_for_checking as $param_name => $param_sql)
+			{
+				if (isset($paramsForChecking[$param_name]))
+				{
+					$qry .= $param_sql;
+					$params[] = $paramsForChecking[$param_name];
+				}
+			}
+		}
+
+		$result = $this->_db->execReadOnlyQuery($qry, $params);
+
+		if (isError($result)) return $result;
+
+		if (hasData($result))
+		{
+			$data = getData($result);
+
+			// populate results with data necessary for writing issues
+			foreach ($data as $d)
+			{
+				$fehlertext_params = [];
+				$resolution_params = [];
+
+				// add params for error texts
+				foreach ($this->_fehlertext_params as $param)
+				{
+					if (isset($d->{$param})) $fehlertext_params[$param] = $d->{$param};
+				}
+
+				// add params for resolution of issue
+				foreach ($this->_resolution_params as $param)
+				{
+					if (isset($d->{$param})) $resolution_params[$param] = $d->{$param};
+				}
+
+				$results[] = array(
+					'person_id' => $d->person_id,
+					'oe_kurzbz' => $d->prestudent_stg_oe_kurzbz,
+					'fehlertext_params' => $fehlertext_params,
+					'resolution_params' => $resolution_params
+				);
+			}
+		}
+
+		// return the results
+		return success($results);
+	}
 }

application/libraries/issues/resolvers/CORE_STUDENTSTATUS_0016.php

@@ -0,0 +1,36 @@
+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+/**
+ * Student in dual Studiengang should have set the dual flag to true.
+ */
+class CORE_STUDENTSTATUS_0016 implements IIssueResolvedChecker
+{
+	public function checkIfIssueIsResolved($params)
+	{
+		if (!isset($params['prestudent_id']) || !is_numeric($params['prestudent_id']))
+			return error('Prestudent Id missing, issue_id: '.$params['issue_id']);
+
+		if (!isset($params['studiensemester_kurzbz']) || isEmptyString($params['studiensemester_kurzbz']))
+			return error('Studiensemester missing, issue_id: '.$params['issue_id']);
+
+		$this->_ci =& get_instance(); // get code igniter instance
+
+		$this->_ci->load->library('issues/plausichecks/DualesStudiumOhneMarkierung');
+
+		// check if issue persists
+		$checkRes = $this->_ci->dualesstudiumohnemarkierung->getDualesStudiumOhneMarkierung(
+			$params['studiensemester_kurzbz'],
+			null,
+			$params['prestudent_id']
+		);
+
+		if (isError($checkRes)) return $checkRes;
+
+		if (hasData($checkRes))
+			return success(false); // not resolved if issue is still present
+		else
+			return success(true); // resolved otherwise
+	}
+}

application/libraries/vertragsbestandteil/Dienstverhaeltnis.php

@@ -29,6 +29,9 @@ class Dienstverhaeltnis extends AbstractBestandteil {
 	protected $updateamum;
 	protected $updatevon;
 
+	protected $dvendegrund_kurzbz;
+	protected $dvendegrund_anmerkung;
+
 	public function __construct()
 	{
 		parent::__construct();
@@ -49,6 +52,8 @@ class Dienstverhaeltnis extends AbstractBestandteil {
 		isset($data->insertvon) && $this->setInsertvon($data->insertvon);
 		isset($data->updateamum) && $this->setUpdateamum($data->updateamum);
 		isset($data->updatevon) && $this->setUpdatevon($data->updatevon);
+		isset($data->dvendegrund_kurzbz) && $this->setDvendegrund_kurzbz($data->dvendegrund_kurzbz);
+		isset($data->dvendegrund_anmerkung) && $this->setDvendegrund_anmerkung($data->dvendegrund_anmerkung);
 		$this->fromdb = false;
 	}
 	
@@ -64,7 +69,9 @@ class Dienstverhaeltnis extends AbstractBestandteil {
 			'insertamum' => $this->getInsertamum(),
 			'insertvon' => $this->getInsertvon(),
 			'updateamum' => $this->getUpdateamum(),
-			'updatevon' => $this->getUpdatevon()
+			'updatevon' => $this->getUpdatevon(), 
+			'dvendegrund_kurzbz' => $this->getDvendegrund_kurzbz(), 
+			'dvendegrund_anmerkung' => $this->getDvendegrund_anmerkung()
 		);
 		
 		$tmp = array_filter($tmp, function($k) {
@@ -139,6 +146,16 @@ EOTXT;
 		return $this->updatevon;
 	}
 
+	public function getDvendegrund_kurzbz()
+	{
+	    return $this->dvendegrund_kurzbz;
+	}
+
+	public function getDvendegrund_anmerkung()
+	{
+	    return $this->dvendegrund_anmerkung;
+	}
+
 	public function setDienstverhaeltnis_id($dienstverhaeltnis_id)
 	{
 		$this->markDirty('dienstverhaeltnis_id', $this->dienstverhaeltnis_id, $dienstverhaeltnis_id);
@@ -214,6 +231,20 @@ EOTXT;
 		return $this;
 	}
 	
+	public function setDvendegrund_kurzbz($dvendegrund_kurzbz)
+	{
+	    $this->markDirty('dvendegrund_kurzbz', $this->dvendegrund_kurzbz, $dvendegrund_kurzbz);
+	    $this->dvendegrund_kurzbz = $dvendegrund_kurzbz;
+	    return $this;
+	}
+
+	public function setDvendegrund_anmerkung($dvendegrund_anmerkung)
+	{
+	    $this->markDirty('dvendegrund_anmerkung', $this->dvendegrund_anmerkung, $dvendegrund_anmerkung);
+	    $this->dvendegrund_anmerkung = $dvendegrund_anmerkung;
+	    return $this;
+	}
+
 	public function validate() {		
 		//do Validation here
 		$ci = get_instance();

application/libraries/vertragsbestandteil/Gehaltsbestandteil.php

@@ -201,6 +201,10 @@ class Gehaltsbestandteil extends AbstractBestandteil implements \JsonSerializabl
 
 	public function setGrundbetrag($grundbetrag)
 	{
+		if(is_float($grundbetrag))
+		{
+		    $grundbetrag = number_format($grundbetrag, 2, '.', '');
+		}
 		$this->markDirty('grundbetrag', $this->grundbetrag, $grundbetrag);
 		$this->grundbetrag = $grundbetrag;
 		return $this;
@@ -208,6 +212,10 @@ class Gehaltsbestandteil extends AbstractBestandteil implements \JsonSerializabl
 
 	public function setBetrag_valorisiert($betrag_valorisiert)
 	{
+		if(is_float($betrag_valorisiert))
+		{
+		    $betrag_valorisiert = number_format($betrag_valorisiert, 2, '.', '');
+		}
 		$this->markDirty('betrag_valorisiert', $this->betrag_valorisiert, $betrag_valorisiert);
 		$this->betrag_valorisiert = $betrag_valorisiert;
 		return $this;

application/libraries/vertragsbestandteil/VertragsbestandteilLib.php

@@ -435,7 +435,7 @@ class VertragsbestandteilLib
 	    return $result;
 	}
 
-	public function endDienstverhaeltnis(Dienstverhaeltnis $dv, $enddate)
+	public function endDienstverhaeltnis(Dienstverhaeltnis $dv, $enddate, $dvendegrund_kurzbz=null, $dvendegrund_anmerkung=null)
 	{
 		if( $dv->getBis() !== null && $dv->getBis() < $enddate )
 		{
@@ -460,6 +460,14 @@ class VertragsbestandteilLib
 					$this->endVertragsbestandteil($vb, $enddate);
 				}
 
+				if( $dvendegrund_kurzbz !== null )
+				{
+				    $dv->setDvendegrund_kurzbz($dvendegrund_kurzbz);
+				}
+				if( $dvendegrund_anmerkung !== null )
+				{
+				    $dv->setDvendegrund_anmerkung($dvendegrund_anmerkung);
+				}
 				$dv->setBis($enddate);
 				$this->updateDienstverhaeltnis($dv);