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kartenverlängerungsautomat sucht sich den zu letzt bezahlten Studienbeitrag und druckt dieses datum
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@@ -514,6 +514,63 @@ class konto extends basis_db
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return false;
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}
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}
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/**
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* ueberprueft, ob studiengebuehr gebucht ist fuer
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* student_uid und studiensemester
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* gibt true/false zurueck und setzt bei true das buchungsdatum $this->buchungsdatum
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*/
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public function getLastStudienbeitrag($uid)
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{
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$subqry = "SELECT tbl_konto.buchungsnr, tbl_konto.buchungsdatum, tbl_konto.buchungsnr_verweis, tbl_konto.studiensemester_kurzbz FROM public.tbl_konto, public.tbl_benutzer, public.tbl_student
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WHERE
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tbl_benutzer.uid = '".addslashes($uid)."'
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AND tbl_benutzer.uid = tbl_student.student_uid
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AND tbl_benutzer.person_id = tbl_konto.person_id
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AND tbl_konto.studiengang_kz=tbl_student.studiengang_kz
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AND tbl_konto.buchungstyp_kurzbz = 'Studiengebuehr' ORDER BY buchungsnr DESC";
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if($result = $this->db_query($subqry))
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{
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if ($this->db_num_rows($result)==0)
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return false;
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else
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{
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while ($subrow = $this->db_fetch_object($result))
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{
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if($subrow->buchungsnr_verweis != '')
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{
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$qry = "SELECT sum(betrag) as differenz FROM public.tbl_konto
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WHERE buchungsnr=".$this->db_add_param($subrow->buchungsnr_verweis, FHC_INTEGER)." OR buchungsnr_verweis=".$this->db_add_param($subrow->buchungsnr_verweis, FHC_INTEGER).";";
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if($result_test = $this->db_query($qry))
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{
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if($row = $this->db_fetch_object($result_test))
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{
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if ($row->differenz == 0)
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{
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return $subrow->studiensemester_kurzbz;
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}
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}
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}
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else
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{
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$this->errormsg = 'Fehler beim Ermitteln der Differenz';
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return false;
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}
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}
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}
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}
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}
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else
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{
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$this->errormsg = 'Fehler bei einer Abfrage';
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return false;
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}
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}
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/**
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*
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