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prototyp fuer die Stundenplan query fuer Studierende

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This commit is contained in:
SimonGschnell
2024-10-02 13:25:39 +02:00
parent c461480d1d
commit 7f9352b820
2 changed files with 54 additions and 15 deletions
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application/models/ressource/Stundenplan_model.php
+45 -14
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@@ -193,20 +193,51 @@ class Stundenplan_model extends DB_Model
* @return string
*/
public function getStundenplanQuery($uid, $start_date, $end_date,$studiengang_kz,$semester){
return
"select sp.*
from lehre.vw_stundenplan sp
left join public.tbl_benutzergruppe bg ON sp.gruppe_kurzbz=bg.gruppe_kurzbz AND bg.uid =".$this->escape($uid)."
left join public.tbl_studiensemester ss1 ON bg.studiensemester_kurzbz=ss1.studiensemester_kurzbz AND ss1.start <=sp.datum AND ss1.ende>= sp.datum
left join public.tbl_studentlehrverband slv ON sp.studiengang_kz=slv.studiengang_kz and slv.student_uid=".$this->escape($uid)." and (slv.semester=sp.semester OR sp.semester IS NULL) AND (slv.verband=sp.verband OR sp.verband IS NULL OR sp.verband='' OR sp.verband='0') AND
(slv.gruppe=sp.gruppe OR sp.gruppe IS NULL OR sp.gruppe='' OR sp.gruppe='0') AND sp.gruppe_kurzbz IS NULL
left join public.tbl_studiensemester ss2 ON slv.studiensemester_kurzbz=ss2.studiensemester_kurzbz AND ss2.start<=sp.datum and ss2.ende >= sp.datum
WHERE
sp.datum >= ".$this->escape($start_date)."
AND sp.datum <= ".$this->escape($end_date)."
AND sp.studiengang_kz = ".$this->escape($studiengang_kz)."
AND sp.semester = ".$this->escape($semester)."
AND (ss1.studiensemester_kurzbz IS NOT NULL or ss2.studiensemester_kurzbz IS NOT NULL)";
$studiensemester = null;
$check_with_start_date = $this->execReadOnlyQuery("SELECT * FROM public.tbl_studiensemester WHERE " . $this->escape($start_date) . " BETWEEN start AND ende ;");
$check_with_start_date = getData($check_with_start_date);
if (count($check_with_start_date)>0)
{
$studiensemester = current($check_with_start_date)->studiensemester_kurzbz;
}
else
{
$check_with_end_date = $this->execReadOnlyQuery("SELECT * FROM public.tbl_studiensemester WHERE " . $this->escape($end_date) . " BETWEEN start AND ende ;");
$check_with_end_date = getData($check_with_end_date);
if (count($check_with_start_date) > 0)
{
$studiensemester = current($check_with_end_date)->studiensemester_kurzbz;
}
}
if(!is_null($studiensemester))
{
$semester_with_studiensemester = $this->execReadOnlyQuery("SELECT * FROM public.tbl_studentlehrverband WHERE student_uid = " . $this->escape($uid) . " AND studiensemester_kurzbz = " . $this->escape($studiensemester));
$semester_with_studiensemester = getData($semester_with_studiensemester);
$semester_with_studiensemester = current($semester_with_studiensemester)->semester;
return
"select sp.*
from lehre.vw_stundenplan sp
left join public.tbl_benutzergruppe bg ON sp.gruppe_kurzbz=bg.gruppe_kurzbz AND bg.uid =".$this->escape($uid)."
left join public.tbl_studiensemester ss1 ON bg.studiensemester_kurzbz=ss1.studiensemester_kurzbz AND ss1.start <=sp.datum AND ss1.ende>= sp.datum
left join public.tbl_studentlehrverband slv ON sp.studiengang_kz=slv.studiengang_kz and slv.student_uid=".$this->escape($uid)." and (slv.semester=sp.semester OR sp.semester IS NULL) AND (slv.verband=sp.verband OR sp.verband IS NULL OR sp.verband='' OR sp.verband='0') AND
(slv.gruppe=sp.gruppe OR sp.gruppe IS NULL OR sp.gruppe='' OR sp.gruppe='0') AND sp.gruppe_kurzbz IS NULL
left join public.tbl_studiensemester ss2 ON slv.studiensemester_kurzbz=ss2.studiensemester_kurzbz AND ss2.start<=sp.datum and ss2.ende >= sp.datum
WHERE
sp.datum >= ".$this->escape($start_date)."
AND sp.datum <= ".$this->escape($end_date)."
AND sp.studiengang_kz = ".$this->escape($studiengang_kz)."
AND sp.semester = ".$this->escape($semester_with_studiensemester)."
AND (ss1.studiensemester_kurzbz IS NOT NULL or ss2.studiensemester_kurzbz IS NOT NULL)";
}
else
{
return error("studiensemester could not be retrieved with the student_uid: ".$uid);
}
}
/**