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neue Klasse lvangebot
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<?php
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/*
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* lvangebot.class.php
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*
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* Copyright 2013 fhcomplete.org
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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 published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*
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* Authors: Martin Tatzber <tatzberm@technikum-wien.at
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*/
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require_once(dirname(__FILE__).'/basis_db.class.php');
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class lvangebot extends basis_db
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{
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private $new = true; // boolean
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public $result = array(); // Objekte
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//Tabellenspalten
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protected $lvangebot_id; // integer (PK)
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protected $lehrveranstaltung_id; // integer (FK Lehrveranstaltung)
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protected $studiensemester_kurzbz; // varchar(16) (FK Studiensemester)
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protected $gruppe_kurzbz; // varchar(32) (FK Gruppe)
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protected $incomingplaetze; // smallint
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protected $gesamtplaetze; // smallint
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protected $anmeldefenster_start; // timestamp
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protected $anmeldefenster_ende; // timestamp
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protected $updateamum; // timestamp
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protected $updatevon; // varchar(32)
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protected $insertamum; // timestamp
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protected $insertvon; // varchar(32)
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/**
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* Konstruktor
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*/
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public function __construct()
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{
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parent::__construct();
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}
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public function __set($name,$value)
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{
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$this->$name=$value;
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}
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public function __get($name)
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{
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return $this->$name;
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}
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/**
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* Laden von LV-Angebot
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* @param lvangebot_id ID des Datensatzes, der geladen werden soll
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* @return true wenn ok, false im Fehlerfall
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*/
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public function load($lvangebot_id)
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{
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if(!is_numeric($lvangebot_id))
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{
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$this->errormsg = 'lvangebot_id muss eine gueltige Zahl sein';
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return false;
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}
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$qry = "SELECT * FROM lehre.tbl_lvangebot WHERE lvangebot_id=".$this->db_add_param($lvangebot_id);
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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->lvangebot_id=$row->lvangebot_id;
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$this->lehrveranstaltung_id=$row->lehrveranstaltung_id;
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$this->studiensemester_kurzbz=$row->studiensemester_kurzbz;
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$this->gruppe_kurzbz=$row->gruppe_kurzbz;
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$this->incomingplaetze=$row->incomingplaetze;
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$this->gesamtplaetze=$row->gesamtplaetze;
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$this->anmeldefenster_start=$row->anmeldefenster_start;
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$this->anmeldefenster_ende=$row->anmeldefenster_ende;
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$this->insertamum=$row->insertamum;
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$this->insertvon=$row->insertvon;
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$this->updatenamum=$row->updateamum;
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$this->updatevon=$row->updatenvon;
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}
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}
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else
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{
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$this->errormsg = 'Datensatz konnte nicht geladen werden';
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return false;
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}
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return true;
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}
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/**
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* Prueft die Variablen 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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//Zahlenfelder pruefen
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if(!is_numeric($this->lehrveranstaltung_id) && $this->lehrveranstaltung_id!=='')
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{
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$this->errormsg='lehrveranstaltung_id enthaelt ungueltige Zeichen';
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return false;
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}
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if(!is_numeric($this->incomingplaetze) && $this->incomingplaetze!=='')
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{
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$this->errormsg='incomingplaetze enthaelt ungueltige Zeichen';
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return false;
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}
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if(!is_numeric($this->gesamtplaetze) && $this->gesamtplaetze!=='')
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{
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$this->errormsg='gesamtplaetze enthaelt ungueltige Zeichen';
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return false;
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}
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//Gesamtlaenge pruefen
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if(mb_strlen($this->studiensemester_kurzbz)>32)
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{
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$this->errormsg = 'studiensemester_kurzbz darf nicht länger als 32 Zeichen sein';
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return false;
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}
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if(mb_strlen($this->gruppe_kurzbz)>32)
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{
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$this->errormsg = 'Gruppe darf nicht länger als 32 Zeichen sein';
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return false;
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}
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$this->errormsg = '';
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return true;
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}
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/**
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* Speichert den aktuellen Datensatz in die Datenbank
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* @return true wenn ok, false im Fehlerfall
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*/
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public function save()
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{
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//Variablen pruefen
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if(!$this->validate())
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return false;
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if($this->new)
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{
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//Neuen Datensatz einfuegen
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$qry='BEGIN;INSERT INTO lehre.tbl_lvangebot (lehrveranstaltung_id, studiensemester_kurzbz,
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gruppe_kurzbz, incomingplaetze, gesamtplaetze, anmeldefenster_start, anmeldefenster_ende,
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insertamum, insertvon) VALUES ('.
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$this->db_add_param($this->lehrveranstaltung_id, FHC_INTEGER).', '.
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$this->db_add_param($this->studiensemester_kurzbz).', '.
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$this->db_add_param($this->gruppe_kurzbz).', '.
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$this->db_add_param($this->incomingplaetze, FHC_INTEGER).', '.
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$this->db_add_param($this->gesamtplaetze, FHC_INTEGER).', '.
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$this->db_add_param($this->anmeldefenster_start).', '.
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$this->db_add_param($this->anmeldefenster_ende).', '.
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$this->db_add_param($this->freigabe, FHC_BOOLEAN).', '.
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'now(), '.
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$this->db_add_param($this->insertvon).');';
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}
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else
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{
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//Pruefen ob lvangebot_id eine gueltige Zahl ist
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if(!is_numeric($this->lvangebot_id))
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{
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$this->errormsg = 'lvangebot_id muss eine gueltige Zahl sein';
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return false;
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}
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$qry='UPDATE lehre.tbl_lvangebot SET'.
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' lehrveranstaltung_id='.$this->db_add_param($this->lehrveranstaltung_id, FHC_INTEGER).', '.
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' studiensemester_kurzbz='.$this->db_add_param($this->studiensemester_kurzbz).', '.
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' gruppe_kurzbz='.$this->db_add_param($this->gruppe_kurzbz).', '.
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' incomingplaetze='.$this->db_add_param($this->incomingplaetze, FHC_INTEGER).', '.
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' gesamtplaetze='.$this->db_add_param($this->gesamtplaetze, FHC_INTEGER).', '.
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' anmeldefenster_start='.$this->db_add_param($this->anmeldefenster_start).', '.
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' anmeldefenster_ende='.$this->db_add_param($this->anmeldefenster_ende).', '.
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' updateamum= now(), '.
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' updatevon='.$this->db_add_param($this->updatevon).' '.
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' WHERE lvangebot_id='.$this->db_add_param($this->lvangebot_id, FHC_INTEGER, false).';';
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}
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if($this->db_query($qry))
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{
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if($this->new)
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{
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//naechste ID aus der Sequence holen
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$qry="SELECT currval('lehre.seq_lvangebot_lvangebot_id') as id;";
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if($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->lvangebot_id = $row->id;
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$this->db_query('COMMIT');
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}
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else
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{
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$this->db_query('ROLLBACK');
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$this->errormsg = "Fehler beim Auslesen der Sequence";
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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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$this->db_query('ROLLBACK');
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$this->errormsg = 'Fehler beim Auslesen der Sequence';
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return false;
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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 Speichern des Datensatzes';
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return false;
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}
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return $this->lvangebot_id;
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}
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/**
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* Loescht den Datenensatz mit der ID die uebergeben wird
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* @param $lvangebot_id ID die geloescht werden soll
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* @return true wenn ok, false im Fehlerfall
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*/
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public function delete($lvangebot_id)
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{
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//Pruefen ob lvangebot_id eine gueltige Zahl ist
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if(!is_numeric($lvangebot_id) || $lvangebot_id === '')
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{
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$this->errormsg = 'lvangebot_id muss eine gültige Zahl sein'."\n";
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return false;
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}
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//loeschen des Datensatzes
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$qry="DELETE FROM lehre.tbl_lvangebot WHERE lvangebot_id=".$this->db_add_param($lvangebot_id, FHC_INTEGER, false).";";
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if($this->db_query($qry))
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{
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return true;
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}
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else
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{
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$this->errormsg = 'Fehler beim Löschen der Daten'."\n";
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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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