mirror of
https://github.com/FH-Complete/FHC-Core.git
synced 2026-06-02 20:59:28 +00:00
Harald Bamberger
108 lines
4.2 KiB
PHP
108 lines
4.2 KiB
PHP
<?php
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class Oehbeitrag_model extends DB_Model
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{
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/**
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* Constructor
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*/
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public function __construct()
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{
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parent::__construct();
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$this->dbTable = 'bis.tbl_oehbeitrag';
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$this->pk = 'oehbeitrag_id';
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}
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/**
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* Gets oehbeitrag data valid for a certain Studiensemester.
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* @param string $studiensemester_kurzbz
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* @return object
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*/
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public function getByStudiensemester($studiensemester_kurzbz)
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{
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$qry = "WITH semstart AS (
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SELECT start FROM public.tbl_studiensemester
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WHERE studiensemester_kurzbz = ?
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)
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SELECT * FROM bis.tbl_oehbeitrag oehb
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JOIN public.tbl_studiensemester semvon ON oehb.von_studiensemester_kurzbz = semvon.studiensemester_kurzbz
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LEFT JOIN public.tbl_studiensemester sembis ON oehb.bis_studiensemester_kurzbz = sembis.studiensemester_kurzbz
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JOIN semstart ON semstart.start::date >= semvon.start::date AND (sembis.studiensemester_kurzbz IS NULL OR semstart.start::date <= sembis.start::date)
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ORDER BY semvon.start
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LIMIT 1";
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return $this->execQuery($qry, array($studiensemester_kurzbz));
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}
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/**
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* Gets all Studiensemester for which no Oehbeitrag value assignment exists.
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* @param string $start_studiensemester_kurzbz semester before the given semester are ignored
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* @param array $excluded_oehbeitrag_id oehbeitraege to be ignored, i.e. which are assigned
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* @return object
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*/
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public function getUnassignedStudiensemester($start_studiensemester_kurzbz, $excluded_oehbeitrag_id = array())
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{
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$params = array($start_studiensemester_kurzbz);
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$qry = "SELECT * FROM public.tbl_studiensemester sem
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WHERE sem.start >= (SELECT start FROM public.tbl_studiensemester WHERE studiensemester_kurzbz = ?)
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AND NOT EXISTS (SELECT 1 FROM bis.tbl_oehbeitrag oeh
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JOIN public.tbl_studiensemester oeh_von ON oeh.von_studiensemester_kurzbz = oeh_von.studiensemester_kurzbz
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LEFT JOIN public.tbl_studiensemester oeh_bis ON oeh.bis_studiensemester_kurzbz = oeh_bis.studiensemester_kurzbz
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WHERE sem.start::date >= oeh_von.start::date AND (sem.start::date <= oeh_bis.start::date OR oeh_bis.studiensemester_kurzbz IS NULL)";
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if (!isEmptyArray($excluded_oehbeitrag_id))
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{
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$qry .= " AND oehbeitrag_id NOT IN ?";
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$params[] = $excluded_oehbeitrag_id;
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}
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$qry .= ") ORDER BY sem.start";
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return $this->execQuery($qry, $params);
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}
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/**
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* Checks if a Öhbeitrag can be assigned for a Studiensemester range.
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* @param string $von_studiensemester_kurzbz
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* @param string $bis_studiensemester_kurzbz
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* @param array $excluded_oehbeitrag_id oehbeitraege to ignore, i.e. which are assignable
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* @return object array with true if assignable, with false if not
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*/
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public function checkIfStudiensemesterAssignable($von_studiensemester_kurzbz, $bis_studiensemester_kurzbz = null, $excluded_oehbeitrag_id = array())
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{
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$params = array($von_studiensemester_kurzbz);
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$allStdSemSpanQry = "SELECT count(studiensemester_kurzbz) as number_assigned FROM public.tbl_studiensemester sem
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WHERE start >= (SELECT start FROM public.tbl_studiensemester WHERE studiensemester_kurzbz = ?)";
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if ($bis_studiensemester_kurzbz != null)
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{
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$allStdSemSpanQry .= " AND (start <= (SELECT start FROM public.tbl_studiensemester WHERE studiensemester_kurzbz = ?))";
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$params[] = $bis_studiensemester_kurzbz;
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}
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$allStdSemSpanQry .= " AND EXISTS (SELECT 1 FROM bis.tbl_oehbeitrag
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JOIN public.tbl_studiensemester sem_von ON tbl_oehbeitrag.von_studiensemester_kurzbz = sem_von.studiensemester_kurzbz
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LEFT JOIN public.tbl_studiensemester sem_bis ON tbl_oehbeitrag.bis_studiensemester_kurzbz = sem_bis.studiensemester_kurzbz
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WHERE sem.start >= sem_von.start AND (sem.start <= sem_bis.start OR sem_bis.studiensemester_kurzbz IS NULL)";
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if (!isEmptyArray($excluded_oehbeitrag_id))
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{
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$allStdSemSpanQry .= " AND oehbeitrag_id NOT IN ?";
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$params[] = $excluded_oehbeitrag_id;
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}
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$allStdSemSpanQry .= ")";
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$nrAssigned = $this->execQuery($allStdSemSpanQry, $params);
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if (isError($nrAssigned))
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return $nrAssigned;
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if (!hasData($nrAssigned))
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return error("Fehler bei Überprüfung der Möglichkeit der Semesterzuweisung");
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return success(array(getData($nrAssigned)[0]->number_assigned == 0));
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}
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}
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