mirror of
https://github.com/FH-Complete/FHC-Core.git
synced 2026-06-01 20:29:29 +00:00
Harald Bamberger
594 lines
19 KiB
PHP
594 lines
19 KiB
PHP
<?php
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if (! defined('BASEPATH')) exit('No direct script access allowed');
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class StundenplanLib{
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private $_ci; // Code igniter instance
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/**
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* fetches Stundenplan events from a UID and start/end date
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* @access public
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*
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*/
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public function getStundenplan($start_date, $end_date, $lv_id = null){
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$this->_ci =& get_instance();
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$this->_ci->load->model('ressource/Mitarbeiter_model','MitarbeiterModel');
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$this->_ci->load->model('organisation/Studiensemester_model','StudiensemesterModel');
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$this->_ci->load->model('education/Studentlehrverband_model', 'StudentlehrverbandModel');
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$this->_ci->load->model('person/Benutzergruppe_model','BenutzergruppeModel');
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$this->_ci->load->model('ressource/Stundenplan_model', 'StundenplanModel');
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$student_uid = getAuthUID();
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if(is_null($student_uid))
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{
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return error("No UID");
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}
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$semester_range = $this->studienSemesterErmitteln($start_date,$end_date);
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if(isError($semester_range))
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{
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return error(getData($semester_range));
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}
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$semester_range = getData($semester_range);
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$this->sortStudienSemester($semester_range);
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$function_error = $this->applyLoadUeberSemesterHaelfte($semester_range);
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if(!is_null($function_error)){
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return $function_error;
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}
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if($lv_id) { // fetch Stundenplan for lva, irrelevant of who is requesting it (for now)
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$stundenplan_data = $this->_ci->StundenplanModel->getStundenplanLVA($start_date, $end_date, $lv_id);
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if(isError($stundenplan_data))
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{
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return error(getData($stundenplan_data));
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}
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$stundenplan_data = getData($stundenplan_data) ?? [];
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$function_error = $this->expand_object_information($stundenplan_data);
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if(!is_null($function_error)){
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return $function_error;
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}
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// query lv itself in case its Stundenplan is being queried and it has no entries
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$this->_ci->load->model('education/Lehrveranstaltung_model','LehrveranstaltungModel');
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$lv_result = $this->_ci->LehrveranstaltungModel->load($lv_id);
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if(isError($lv_result))
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{
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return error(getData($lv_result));
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}
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$lv = getData($lv_result)[0];
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return $stundenplan_data;
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}
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$is_mitarbeiter = getData($this->_ci->MitarbeiterModel->isMitarbeiter($student_uid));
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if($is_mitarbeiter)
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{
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$stundenplan_data = $this->_ci->StundenplanModel->getStundenplanMitarbeiter($start_date, $end_date, $student_uid);
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if(isError($stundenplan_data))
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{
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return error(getData($stundenplan_data));
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}
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$stundenplan_data = getData($stundenplan_data) ?? [];
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$function_error = $this->expand_object_information($stundenplan_data);
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if(!is_null($function_error)){
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return error($function_error);
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}
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return success($stundenplan_data);
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} else {
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// getting the gruppen_kurzbz of the student in the different studiensemester
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$benutzer_gruppen = $this->fetchBenutzerGruppenFromStudiensemester($semester_range);
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if(isError($benutzer_gruppen))
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{
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return error(getData($benutzer_gruppen));
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}
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$benutzer_gruppen = getData($benutzer_gruppen);
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// getting the student_lehrverbaende of the student in the different studiensemester
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$student_lehrverband = $this->fetchStudentlehrverbandFromStudiensemester($semester_range);
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if(isError($student_lehrverband))
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{
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return error(getData($student_lehrverband));
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}
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$student_lehrverband = getData($student_lehrverband);
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$stundenplan_query = $this->_ci->StundenplanModel->getStundenplanQuery($start_date, $end_date, $semester_range, $benutzer_gruppen, $student_lehrverband);
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if(!$stundenplan_query)
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{
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return error([]);
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}
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$stundenplan_data = $this->_ci->StundenplanModel->stundenplanGruppierung($stundenplan_query);
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if(isError($stundenplan_data))
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{
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return error(getData($stundenplan_data));
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}
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$stundenplan_data = getData($stundenplan_data) ?? [];
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$function_error = $this->expand_object_information($stundenplan_data);
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if(!is_null($function_error)){
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return $function_error;
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}
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return success($stundenplan_data);
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}
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}
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public function getReservierungen($start_date, $end_date, $ort_kurzbz){
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$this->_ci =& get_instance();
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$is_mitarbeiter = getData($this->_ci->MitarbeiterModel->isMitarbeiter(getAuthUID()));
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if($is_mitarbeiter)
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{
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$reservierungen = $this->_ci->ReservierungModel->getReservierungenMitarbeiter($start_date, $end_date, $ort_kurzbz);
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} else {
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// querying the reservierungen
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$reservierungen = $this->_ci->ReservierungModel->getReservierungen($start_date, $end_date, $ort_kurzbz);
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}
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if(isError($reservierungen))
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{
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return error(getData($reservierungen));
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}
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$reservierungen = getData($reservierungen) ?? [];
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$function_error = $this->expand_object_information($reservierungen);
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if(!is_null($function_error)){
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return $function_error;
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}
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return success($reservierungen);
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}
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public function getLektorenFromLehrveranstaltung($lehrveranstaltung_id, $semester, $studiengang_kz, $studiensemester_kurzbz){
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$this->_ci =& get_instance();
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$this->_ci->load->model('ressource/Stundenplan_model', 'StundenplanModel');
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$this->_ci->load->model('organisation/Studiensemester_model','StudiensemesterModel');
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$studiensemester = $this->_ci->StudiensemesterModel->loadWhere(["studiensemester_kurzbz"=>$studiensemester_kurzbz]);
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if(isError($studiensemester))
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{
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return error(getData($studiensemester));
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}
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$studiensemester = current(getData($studiensemester));
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$lektoren = $this->_ci->StundenplanModel->execReadOnlyQuery("
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SELECT DISTINCT uid
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FROM campus.vw_stundenplan
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WHERE lehrveranstaltung_id = ? AND
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studiengang_kz = ? AND
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semester = ? AND
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(datum BETWEEN ? AND ?)
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",[$lehrveranstaltung_id, $studiengang_kz, $semester, $studiensemester->start, $studiensemester->ende]);
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if(isError($lektoren))
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{
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return error(getData($lektoren));
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}
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$lektoren = getData($lektoren);
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if(isset($lektoren)){
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$lektoren = array_map(function($lektor){
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return $lektor->uid;
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},$lektoren);
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}
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return $lektoren;
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}
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public function expand_object_information($data){
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$this->_ci =& get_instance();
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foreach ($data as $item)
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{
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$lektor_obj_array = array();
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$gruppe_obj_array = array();
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// load lektor object
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foreach ($item->lektor as $lv_lektor)
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{
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$this->_ci->StundenplanModel->addLimit(1);
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$lektor_object = $this->_ci->StundenplanModel->execReadOnlyQuery("
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SELECT mitarbeiter_uid, vorname, nachname, kurzbz
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FROM public.tbl_mitarbeiter
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JOIN public.tbl_benutzer benutzer ON benutzer.uid = mitarbeiter_uid
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JOIN public.tbl_person person ON person.person_id = benutzer.person_id
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WHERE kurzbz = ?", [$lv_lektor]);
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if (isError($lektor_object)) {
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$this->_ci->show_error(getError($lektor_object));
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}
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if(isError($lektor_object))
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{
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return error(getData($lektor_object));
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}
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$lektor_object = getData($lektor_object);
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if(count($lektor_object) == 0)
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{
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return error("No lektor object");
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}
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$lektor_object = current($lektor_object);
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// only provide needed information of the mitarbeiter object
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$lektor_obj_array[] = $lektor_object;
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}
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// load gruppe object
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foreach ($item->gruppe as $lv_gruppe)
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{
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$lv_gruppe = strtr($lv_gruppe, ['(' => '', ')' => '', '"' => '']);
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$lv_gruppe_array = explode(",", $lv_gruppe);
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list($gruppe, $verband, $semester, $studiengang_kz, $gruppen_kuerzel) = $lv_gruppe_array;
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$lv_gruppe_object = new stdClass();
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$lv_gruppe_object->gruppe = $gruppe;
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$lv_gruppe_object->verband = $verband;
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$lv_gruppe_object->semester = $semester;
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$lv_gruppe_object->studiengang_kz = $studiengang_kz;
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$lv_gruppe_object->kuerzel = $gruppen_kuerzel;
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$gruppe_obj_array[] = $lv_gruppe_object;
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}
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if($item->ort_kurzbz) {
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$ort_content_object = $this->_ci->StundenplanModel->execReadOnlyQuery("
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SELECT content_id
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FROM public.tbl_ort
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WHERE ort_kurzbz = ?", [$item->ort_kurzbz]);
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if (isError($ort_content_object)) {
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return error(getData($ort_content_object));
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}
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$ort_content_object = getData($ort_content_object)[0];
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if($ort_content_object) {
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$item->ort_content_id = $ort_content_object->content_id;
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}
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}
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$item->gruppe = $gruppe_obj_array;
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$item->lektor = $lektor_obj_array;
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}
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}
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// function used to sort an array of studiensemester strings
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private function sortStudienSemester(&$semester_range){
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usort(
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$semester_range,
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function($first,$second)
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{
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$sem_first = null;
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$year_first = null;
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$match_first = null;
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$sem_second = null;
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$year_second = null;
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$match_second = null;
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preg_match('/([WS]+)([0-9]+)/',$first,$match_first);
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preg_match('/([WS]+)([0-9]+)/',$second,$match_second);
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$sem_first = $match_first[1];
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$year_first = intval($match_first[2]);
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$sem_second = $match_second[1];
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$year_second = intval($match_second[2]);
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if($year_first < $year_second)
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{
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return -1;
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}
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else if($year_first > $year_second)
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{
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return 1;
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}
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else if($year_first == $year_second && $sem_first > $sem_second)
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{
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return 1;
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}
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else if($year_first == $year_second && $sem_first < $sem_second)
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{
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return -1;
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}
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return 0;
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}
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);
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}
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private function fetchBenutzerGruppenFromStudiensemester($semester_range){
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$student_uid = getAuthUID();
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$benutzer_gruppen = [];
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// for each studiensemester fetch the benutzer gruppen and add them to an associate $bentuzer_gruppen array
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/*
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[
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['WS2023'] => [['gruppe1_SS2023','gruppe2_SS2023'],['gruppe1_WS2023','gruppe2_WS2023']],
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['SS2024'] => [['gruppe1_WS2023','gruppe2_WS2023'],['gruppe1_SS2024','gruppe2_SS2024']],
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['WS2024'] => [['gruppe1_SS2024','gruppe2_SS2024'],['gruppe1_WS2024','gruppe2_WS2024']],
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]
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*/
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foreach($semester_range as $semester_key => $semester_array)
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{
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$benutzer_gruppen[$semester_key] = [];
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// each semester could have ajoint semesters that need to be checked
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foreach($semester_array as $semester=>$semester_date_range)
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{
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// for each active semester query the benutzer_gruppen associated to the semester
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$benutzer_query = $this->_ci->BenutzergruppeModel->execReadOnlyQuery("
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SELECT * FROM tbl_benutzergruppe where uid = ? AND studiensemester_kurzbz = ?",[$student_uid, $semester]);
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if(isError($benutzer_query)){
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return error(getData($benutzer_query));
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}
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$benutzer_query_result = getData($benutzer_query)??[];
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array_push(
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$benutzer_gruppen[$semester_key],
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array_map(
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function($item)
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{
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return "'".$item->gruppe_kurzbz. "'";
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},
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$benutzer_query_result
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)
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);
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}
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}
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// merge the gruppen of each studiensemester together for the original studiensemester
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/*
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[
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['WS2023'] => ['gruppe1_SS2023','gruppe2_SS2023','gruppe1_WS2023','gruppe2_WS2023'],
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['SS2024'] => ['gruppe1_WS2023','gruppe2_WS2023','gruppe1_SS2024','gruppe2_SS2024'],
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['WS2024'] => ['gruppe1_SS2024','gruppe2_SS2024','gruppe1_WS2024','gruppe2_WS2024'],
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]
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*/
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$benutzer_gruppen = array_map(
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function($gruppe)
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{
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$merged_gruppe = [];
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foreach($gruppe as $gruppen_array)
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{
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$merged_gruppe = array_merge($merged_gruppe, $gruppen_array);
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}
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return $merged_gruppe;
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},
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$benutzer_gruppen
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);
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return success($benutzer_gruppen);
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}
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private function fetchStudentlehrverbandFromStudiensemester($semester_range){
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$student_uid = getAuthUID();
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$student_lehrverband = [];
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// for each studiensemester fetch the studentlehrverbaende and add them to an associate $student_lehrverband array
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/*
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[
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['WS2023'] => [ [ ['stg_kz'=>298,'semester'=>1,'verband'=>"A",'gruppe'=>""] ] ],
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['SS2024'] => [ [ ['stg_kz'=>298,'semester'=>1,'verband'=>"A",'gruppe'=>""] ], [ ['stg_kz'=>298,'semester'=>2,'verband'=>"A",'gruppe'=>""] ] ],
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['WS2024'] => [ [ ['stg_kz'=>298,'semester'=>2,'verband'=>"A",'gruppe'=>""] ], [ ['stg_kz'=>298,'semester'=>3,'verband'=>"A",'gruppe'=>""] ] ],
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]
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*/
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foreach($semester_range as $semester_key => $semester_array)
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{
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$student_lehrverband[$semester_key] = [];
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foreach($semester_array as $semester=>$semester_date_range)
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{
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// for each active semester query the student_lehrverband associated to the semester
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$lehrverband_query = $this->_ci->BenutzergruppeModel->execReadOnlyQuery("
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SELECT * FROM tbl_studentlehrverband where student_uid = ? AND studiensemester_kurzbz = ?", [$student_uid, $semester]);
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if(isError($lehrverband_query)){
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return error(getData($lehrverband_query));
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}
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$lehrverband_query_result = getData($lehrverband_query)??[];
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$converted_studentLehrverband= array_map(
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function ($item)
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{
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$result = new stdClass();
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$result->studiengang_kz = $item->studiengang_kz;
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$result->semester = $item->semester;
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$result->verband = $item->verband;
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$result->gruppe = $item->gruppe;
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return $result;
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},
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$lehrverband_query_result);
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array_push($student_lehrverband[$semester_key], $converted_studentLehrverband);
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}
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}
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// merge the studentlehrverband of each studiensemester together for the original studiensemester
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/*
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[
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['WS2023'] => [ ['stg_kz'=>298,'semester'=>1,'verband'=>"A",'gruppe'=>""] ],
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['SS2024'] => [ ['stg_kz'=>298,'semester'=>1,'verband'=>"A",'gruppe'=>""], ['stg_kz'=>298,'semester'=>2,'verband'=>"A",'gruppe'=>""] ],
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['WS2024'] => [ ['stg_kz'=>298,'semester'=>2,'verband'=>"A",'gruppe'=>""], ['stg_kz'=>298,'semester'=>3,'verband'=>"A",'gruppe'=>""] ],
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]
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*/
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$student_lehrverband = array_map(
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function($studentlehrverband)
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{
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$merged_studentlehrverband = [];
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foreach($studentlehrverband as $studentlehrverband_array)
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{
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$merged_studentlehrverband = array_merge($merged_studentlehrverband, $studentlehrverband_array);
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}
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return $merged_studentlehrverband;
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},
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$student_lehrverband
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);
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return success($student_lehrverband);
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}
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private function applyLoadUeberSemesterHaelfte(&$semester_range){
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/*
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@var($semester_collection)
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convert the array of studiensemester into an associative array with the studiensemester as the key
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and the values of each key are the studiensemester needed for the query associated to that studiensemester
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example:
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#INPUT:
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['WS2023','SS2024','WS2024']
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#OUTPUT:
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[
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'WS2023' => ['SS2023','WS2023']
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'SS2024' => ['WS2023','SS2024']
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'WS2024' => ['SS2024','WS2024']
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]
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*/
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$semester_collection = [];
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foreach($semester_range as $studiensemester)
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{
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$previous_studiensemester = $this->_ci->StudiensemesterModel->getPreviousFrom($studiensemester);
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if(isError($previous_studiensemester))
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{
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return error(getData($previous_studiensemester));
|
|
}
|
|
$previous_studiensemester = getData($previous_studiensemester);
|
|
if (count($previous_studiensemester) == 0) {
|
|
return error('no previous semester');
|
|
}
|
|
$previous_studiensemester = current($previous_studiensemester)->studiensemester_kurzbz;
|
|
$semester_collection[$studiensemester] = [$previous_studiensemester, $studiensemester];
|
|
}
|
|
|
|
/*
|
|
@var($studienSemesterDateRanges)
|
|
fetches for each studiensemester the start and end date, (SS) summer studiensemester are extended by 1 month to cover the summerbreak
|
|
based on the LVPLAN_LOAD_UEBER_SEMESTERHAELFTE constant it will load both the semester and the previous semester with the full date range
|
|
or the semester with the full date range and the previous semester with the half date range:
|
|
|
|
#INPUT:
|
|
[
|
|
'WS2023' => ['SS2023','WS2023']
|
|
'SS2024' => ['WS2023','SS2024']
|
|
'WS2024' => ['SS2024','WS2024']
|
|
]
|
|
#OUTPUT: depends whether LVPLAN_LOAD_UEBER_SEMESTERHAELFTE is true or false
|
|
~ if LVPLAN_LOAD_UEBER_SEMESTERHAELFTE == true
|
|
[
|
|
"SS2024": [
|
|
"WS2023": [
|
|
"start"=> "2024-02-03",
|
|
"ende"=> "2024-08-31"
|
|
],
|
|
"SS2024": [
|
|
"start"=> "2024-02-03",
|
|
"ende"=> "2024-08-31"
|
|
]
|
|
]
|
|
]
|
|
~ if LVPLAN_LOAD_UEBER_SEMESTERHAELFTE == false
|
|
[
|
|
"SS2024": [
|
|
"WS2023": [
|
|
"start"=> "2024-02-03",
|
|
"ende"=> "2024-05-17"
|
|
],
|
|
"SS2024": [
|
|
"start"=> "2024-02-03",
|
|
"ende"=> "2024-08-31"
|
|
]
|
|
]
|
|
]
|
|
*/
|
|
$studienSemesterDateRanges=[];
|
|
foreach($semester_collection as $semester_original => $semester_adjoint)
|
|
{
|
|
$semester_start_ende = $this->_ci->StudiensemesterModel->getStartEndeFromStudiensemester($semester_original);
|
|
if(isError($semester_start_ende))
|
|
{
|
|
return error(getData($semester_start_ende));
|
|
}
|
|
$semester_start_ende = current(getData($semester_start_ende));
|
|
|
|
// initialize empty arrays to add key value pairs
|
|
$studienSemesterDateRanges[$semester_original] = [];
|
|
|
|
// check if the studiensemester is a summer semester and add 1 month to bridge the school summer break
|
|
$match = null;
|
|
preg_match("/^(SS)([0-9]+)/",$semester_original,$match);
|
|
if(count($match) >0)
|
|
{
|
|
$one_month = new DateInterval('P1M');
|
|
$one_day = DateInterval::createFromDateString('1 days');
|
|
$summer_studiensemester_end_date = DateTime::createFromFormat('Y-m-d',$semester_start_ende->ende);
|
|
$summer_studiensemester_end_date->add($one_month);
|
|
$summer_studiensemester_end_date->sub($one_day);
|
|
$semester_start_ende->ende = date_format($summer_studiensemester_end_date,'Y-m-d');
|
|
}
|
|
if (defined('LVPLAN_LOAD_UEBER_SEMESTERHAELFTE') && LVPLAN_LOAD_UEBER_SEMESTERHAELFTE === true)
|
|
{
|
|
foreach($semester_adjoint as $adjoint)
|
|
{
|
|
$studienSemesterDateRanges[$semester_original][$adjoint]=$semester_start_ende;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//TODO: half of a DateInterval might not be correctly calculated
|
|
// calculate the half of the studiensemester
|
|
$studiensemester_start_date = DateTime::createFromFormat('Y-m-d',$semester_start_ende->start);
|
|
$studiensemester_end_date = DateTime::createFromFormat('Y-m-d',$semester_start_ende->ende);
|
|
$studiensemester_time_difference = $studiensemester_start_date->diff($studiensemester_end_date);
|
|
$half_dateNumber = ceil($studiensemester_time_difference->d/2)+ceil(($studiensemester_time_difference->m*30)/2);
|
|
$half_dateInterval = new DateInterval('P'.strval($half_dateNumber) .'D');
|
|
$studiensemester_half = date_format($studiensemester_start_date->add($half_dateInterval),'Y-m-d');
|
|
|
|
$first_half = new stdClass();
|
|
$first_half->start = $semester_start_ende->start;
|
|
$first_half->ende = $studiensemester_half;
|
|
|
|
$studienSemesterDateRanges[$semester_original][$semester_adjoint[0]] = $first_half;
|
|
$studienSemesterDateRanges[$semester_original][$semester_adjoint[1]] = $semester_start_ende;
|
|
}
|
|
$semester_range = $studienSemesterDateRanges;
|
|
}
|
|
}
|
|
|
|
private function studienSemesterErmitteln($start_date,$end_date){
|
|
|
|
// gets all studiensemester from the student from start_date to end_date
|
|
$semester_range = $this->_ci->StudiensemesterModel->getByDateRange($start_date,$end_date);
|
|
if(isError($semester_range))
|
|
{
|
|
return error(getData($semester_range));
|
|
}
|
|
$semester_range = array_map(
|
|
function($sem)
|
|
{
|
|
return $sem->studiensemester_kurzbz;
|
|
},
|
|
getData($semester_range)
|
|
);
|
|
|
|
// if no studiensemester is found for the given timespan, get the nearest studiensemester
|
|
if(count($semester_range) == 0)
|
|
{
|
|
$aktuelle_studiensemester = $this->_ci->StudiensemesterModel->getNearest();
|
|
if(isError($aktuelle_studiensemester))
|
|
{
|
|
return error(getData($aktuelle_studiensemester));
|
|
}
|
|
$aktuelle_studiensemester = getData($aktuelle_studiensemester);
|
|
if (count($aktuelle_studiensemester) == 0) {
|
|
return error("No aktuelles semester");
|
|
}
|
|
$aktuelle_studiensemester = current($aktuelle_studiensemester)->studiensemester_kurzbz;
|
|
// push aktuelles semester in active semester array
|
|
array_push($semester_range, $aktuelle_studiensemester);
|
|
|
|
}
|
|
return success($semester_range);
|
|
}
|
|
}
|