mirror of
https://github.com/FH-Complete/FHC-Core.git
synced 2026-06-01 20:29:29 +00:00
Andreas Österreicher
338 lines
9.6 KiB
PHP
338 lines
9.6 KiB
PHP
<?php
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/* Copyright (C) 2006 Technikum-Wien
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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*
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* Authors: Christian Paminger <christian.paminger@technikum-wien.at>,
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* Andreas Oesterreicher <andreas.oesterreicher@technikum-wien.at>,
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* Rudolf Hangl <rudolf.hangl@technikum-wien.at>,
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* Stefan Puraner <puraner@technikum-wien.at>
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*/
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require_once(dirname(__FILE__).'/basis_db.class.php');
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class lehrverband extends basis_db
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{
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public $new; // boolean
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public $result = array(); // lehrverband Objekt
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//Tabellenspalten
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public $studiengang_kz; // integer
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public $semester; // integer
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public $verband; // integer
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public $gruppe; // integer
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public $aktiv; // boolean
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public $bezeichnung; // varchar(16)
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public $orgform_kurzbz;
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/**
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* Konstruktor
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*
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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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}
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/**
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* Prueft ob ein Lehrverband existiert
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*
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* @param $studiengang_kz
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* @param $semester
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* @param $verband
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* @param $gruppe
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* @return true wenn vorhanden, sonst false
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*/
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public function exists($studiengang_kz, $semester, $verband, $gruppe)
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{
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$qry = "SELECT count(*) as anzahl FROM public.tbl_lehrverband WHERE
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studiengang_kz=".$this->db_add_param($studiengang_kz, FHC_INTEGER)." AND
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semester=".$this->db_add_param($semester, FHC_INTEGER, false)." AND
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trim(verband)=".$this->db_add_param(trim($verband), FHC_STRING, false)." AND
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trim(gruppe)=".$this->db_add_param(trim($gruppe), FHC_STRING, false).";";
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if($this->db_query($qry))
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{
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if($row = $this->db_fetch_object())
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{
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if($row->anzahl>0)
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return true;
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else
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return false;
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}
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else
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{
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$this->errormsg = 'Fehler bei Abfrage';
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return false;
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}
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}
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else
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{
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$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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* Laedt einen Lehrverband
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*
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* @param $studiengang_kz
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* @param $semester
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* @param $verband
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* @param $gruppe
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* @return boolean
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*/
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public function load($studiengang_kz, $semester, $verband, $gruppe)
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{
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$qry = "SELECT * FROM public.tbl_lehrverband
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WHERE studiengang_kz=".$this->db_add_param($studiengang_kz, FHC_INTEGER)."
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AND semester=".$this->db_add_param($semester, FHC_INTEGER)."
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AND verband=".$this->db_add_param($verband)."
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AND gruppe=".$this->db_add_param($gruppe).";";
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if($this->db_query($qry))
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{
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if($row = $this->db_fetch_object())
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{
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$this->studiengang_kz = $row->studiengang_kz;
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$this->semester = $row->semester;
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$this->verband = $row->verband;
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$this->gruppe = $row->gruppe;
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$this->aktiv = $this->db_parse_bool($row->aktiv);
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$this->bezeichnung = $row->bezeichnung;
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$this->orgform_kurzbz = $row->orgform_kurzbz;
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return true;
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}
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else
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{
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$this->errormsg = 'Eintrag nicht gefunden';
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return false;
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}
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}
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else
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{
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$this->errormsg = 'Fehler beim Lesen der Daten';
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return false;
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}
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}
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/**
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* Prueft die Variablen vor dem Speichern
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* auf Gueltigkeit.
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* @return true wenn ok, false im Fehlerfall
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*/
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protected function validate()
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{
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if(!is_numeric($this->semester))
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{
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$this->errormsg = 'Semester muss eine gueltige Zahl sein';
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return false;
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}
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if(!is_numeric($this->studiengang_kz))
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{
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$this->errormsg = 'Studiengang muss eine gueltige Zahl sein';
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return false;
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}
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if($this->verband=='')
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{
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$this->verband=' ';
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}
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if($this->gruppe=='')
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{
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$this->gruppe=' ';
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}
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return true;
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}
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/**
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* Liefert alle Lehrverbaende unterhalb des uebergebenen
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*
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* @param $studiengang_kz
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* @param $semester
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* @param $verband
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* @return boolean
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*/
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public function getlehrverband($studiengang_kz=null, $semester=null, $verband=null)
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{
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$qry = 'SELECT * FROM public.tbl_lehrverband WHERE aktiv=true';
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if(!is_null($studiengang_kz))
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$qry .=' AND studiengang_kz='.$this->db_add_param($studiengang_kz, FHC_INTEGER);
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if(!is_null($semester))
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$qry .=' AND semester='.$this->db_add_param($semester, FHC_INTEGER);
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if(!is_null($verband))
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$qry .=' AND verband='.$this->db_add_param($verband);
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$qry .= ' ORDER BY studiengang_kz, semester, verband, gruppe;';
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if($this->db_query($qry))
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{
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while($row = $this->db_fetch_object())
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{
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$lv_obj = new lehrverband();
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$lv_obj->studiengang_kz = $row->studiengang_kz;
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$lv_obj->semester = $row->semester;
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$lv_obj->verband = $row->verband;
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$lv_obj->gruppe = $row->gruppe;
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$lv_obj->aktiv = $this->db_parse_bool($row->aktiv);
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$lv_obj->bezeichnung = $row->bezeichnung;
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$lv_obj->orgform_kurzbz = $row->orgform_kurzbz;
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$this->result[] = $lv_obj;
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}
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return true;
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}
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else
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{
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$this->errormsg = 'Fehler beim Lesen der Lehrverbaende '.$qry;
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return false;
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}
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}
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public function getSemesterFromStudiengang($studiengang_kz, $aktiv=false)
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{
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$qry = 'SELECT semester, aktiv FROM public.tbl_lehrverband WHERE studiengang_kz='.$this->db_add_param($studiengang_kz, FHC_INTEGER)." AND verband=' ' ";
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if($aktiv)
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$qry.= ' AND aktiv=true';
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$qry .= ' GROUP BY semester, aktiv ORDER BY semester;';
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if($this->db_query($qry))
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{
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$lv_obj = array();
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while($row = $this->db_fetch_object())
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{
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$sem = array();
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$sem["aktiv"] = $row->aktiv;
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$sem["semester"] = $row->semester;
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array_push($lv_obj, $sem);
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}
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return $lv_obj;
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}
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else
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{
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$this->errormsg = 'Fehler beim Lesen der Semester '.$qry;
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return false;
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}
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}
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public function getVerbandFromSemester($studiengang_kz, $semester, $aktiv=false)
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{
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$qry = 'SELECT verband, aktiv, bezeichnung FROM public.tbl_lehrverband WHERE studiengang_kz='.$this->db_add_param($studiengang_kz, FHC_INTEGER).' AND semester='.$this->db_add_param($semester, FHC_INTEGER)." AND gruppe=' ' ";
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if($aktiv)
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$qry.=' AND aktiv=true';
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$qry .= ' GROUP BY verband, aktiv, bezeichnung ORDER BY verband;';
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if($this->db_query($qry))
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{
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$lv_obj = array();
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while($row = $this->db_fetch_object())
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{
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$verb = array();
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$verb["verband"] = $row->verband;
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$verb["aktiv"] = $row->aktiv;
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$verb["bezeichnung"] = $row->bezeichnung;
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array_push($lv_obj, $verb);
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}
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return $lv_obj;
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}
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else
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{
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$this->errormsg = 'Fehler beim Lesen der Lehrverbaende '.$qry;
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return false;
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}
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}
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public function getGruppeFromVerband($studiengang_kz, $semester, $verband, $aktiv=false)
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{
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$qry = 'SELECT gruppe, bezeichnung, aktiv FROM public.tbl_lehrverband WHERE studiengang_kz='.$this->db_add_param($studiengang_kz, FHC_INTEGER).' AND semester='.$this->db_add_param($semester, FHC_INTEGER).' AND verband='.$this->db_add_param($verband, FHC_STRING);
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if($aktiv)
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{
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$qry.=' AND aktiv=true';
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}
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$qry .= ' GROUP BY gruppe, bezeichnung, aktiv ORDER BY gruppe;';
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if($this->db_query($qry))
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{
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$lv_obj = array();
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while($row = $this->db_fetch_object())
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{
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$grp = array();
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$grp["bezeichnung"] = $row->bezeichnung;
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$grp["gruppe"] = $row->gruppe;
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$grp["aktiv"] = $row->aktiv;
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array_push($lv_obj, $grp);
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}
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return $lv_obj;
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}
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else
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{
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$this->errormsg = 'Fehler beim Lesen der Lehrverbaende '.$qry;
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return false;
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}
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}
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/**
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* Speichert Lehrverband in die Datenbank
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* Wenn $new auf true gesetzt ist wird ein neuer Datensatz
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* angelegt, ansonsten der Datensatz upgedated
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* @return true wenn erfolgreich, false im Fehlerfall
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*/
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public function save($new=null)
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{
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if($new==null)
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$new = $this->new;
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//Variablen auf Gueltigkeit pruefen
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if(!$this->validate())
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return false;
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if($new)
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{
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$qry = 'INSERT INTO public.tbl_lehrverband (studiengang_kz, semester, verband, gruppe, aktiv, bezeichnung, orgform_kurzbz)
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VALUES('.$this->db_add_param($this->studiengang_kz, FHC_INTEGER).','.
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$this->db_add_param($this->semester, FHC_INTEGER).','.
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$this->db_add_param($this->verband).','.
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$this->db_add_param($this->gruppe).','.
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$this->db_add_param($this->aktiv, FHC_BOOLEAN).','.
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$this->db_add_param($this->bezeichnung).','.
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$this->db_add_param($this->orgform_kurzbz).');';
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}
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else
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{
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$qry = "UPDATE public.tbl_lehrverband SET ".
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" aktiv=".$this->db_add_param($this->aktiv, FHC_BOOLEAN).", ".
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" bezeichnung=".$this->db_add_param($this->bezeichnung).",".
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" orgform_kurzbz=".$this->db_add_param($this->orgform_kurzbz).
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" WHERE studiengang_kz=".$this->db_add_param($this->studiengang_kz, FHC_INTEGER).
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" AND semester=".$this->db_add_param($this->semester, FHC_INTEGER).
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" AND verband=".$this->db_add_param($this->verband).
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" AND gruppe=".$this->db_add_param($this->gruppe).";";
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}
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if($this->db_query($qry))
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{
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//Log schreiben
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return true;
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}
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else
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{
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$this->errormsg = 'Fehler beim Speichern des Lehrverbands:'.$qry;
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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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