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https://github.com/FH-Complete/FHC-Core.git
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Include VZ Bereinigung
This commit is contained in:
Andreas Österreicher
+139
-133
@@ -1,154 +1,160 @@
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<?php
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<?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> and
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* Rudolf Hangl <rudolf.hangl@technikum-wien.at>.
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*/
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class studiensemester
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class studiensemester
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{
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/**
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* @var string
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*/
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var $kurzbz;
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/**
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* @var string
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*/
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var $start;
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/**
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* @var string
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*/
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var $ende;
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/**
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* @var string
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*/
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var $errormsg;
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/**
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* @var conn
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*/
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var $conn;
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var $conn; // resource DB-Handle
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var $errormsg; // string
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var $new; // boolean
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var $studiensemester = array(); // studiensemester Objekt
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function studiensemester($conn)
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{
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$this->conn=$conn;
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}
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/**
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* Verbindung zur Datenbank herstellen
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* @return PostgreSQL-Connection oder NULL
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//Tabellenspalten
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var $studiensemester_kurzbz; // varchar(16)
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var $start; // date
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var $ende; // date
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function getConnection()
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// ***********************************************************************
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// * Konstruktor - Uebergibt die Connection und laedt optional ein LF
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// * @param $conn Datenbank-Connection
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// * $studiensemester_kurzbz StSem das geladen werden soll (default=null)
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// * $unicode Gibt an ob die Daten mit UNICODE Codierung
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// * oder LATIN9 Codierung verarbeitet werden sollen
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// ***********************************************************************
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function studiensemester($conn, $studiensemester_kurzbz=null, $unicode=false)
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{
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if (!$conn = @ pg_pconnect(CONN_STRING))
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{
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$this->errormsg = "Es konnte keine Verbindung zum Server "."aufgebaut werden.";
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return null;
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}
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return $conn;
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}*/
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function load()
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{
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}
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/**
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* Alle Studiensemester zurückgeben
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* @return array mit Studiensemester oder false=fehler
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*/
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function getAll($order='studiensemester_kurzbz')
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{
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if (is_null($this->conn))
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{
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return false;
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}
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$qry = "select * from tbl_studiensemester ".
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"order by $order";
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//echo $qry;
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if (!($erg = pg_exec($this->conn, $qry)))
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{
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$this->errormsg = pg_errormessage($this->conn);
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return false;
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}
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$result = array();
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$num_rows = pg_numrows($erg);
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for ($i = 0; $i < $num_rows; $i ++)
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{
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// Record holen
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$row = pg_fetch_object($erg, $i);
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// Instanz erzeugen
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$lf = new studiensemester($this->conn);
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$lf->kurzbz = $row->studiensemester_kurzbz;
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$lf->start = $row->start;
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$lf->ende = $row->ende;
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// in array speichern
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$result[] = $lf;
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}
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return $result;
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}
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/**
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* Liefert das Aktuelle Studiensemester
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* @return aktuelles Studiensemester oder false wenn es keines gibt
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*/
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function getakt()
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{
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$qry = "Select studiensemester_kurzbz from tbl_studiensemester where start <= now() and ende >= now()";
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if(!$res=pg_exec($this->conn,$qry))
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{
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$this->errormsg = pg_errormessage($this->conn);
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return false;
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}
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$this->conn = $conn;
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if(pg_num_rows($res)>0)
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{
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$erg = pg_fetch_object($res);
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return $erg->studiensemester_kurzbz;
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}
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if($unicode)
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$qry = "SET CLIENT_ENCODING TO 'UNICODE';";
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else
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$qry = "SET CLIENT_ENCODING TO 'LATIN9';";
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if(!pg_query($conn,$qry))
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{
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$this->errormsg = "Kein aktuelles Studiensemester vorhanden";
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$this->errormsg = 'Encoding konnte nicht gesetzt werden';
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return false;
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}
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if($studiensemester_kurzbz != null)
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$this->load($studiensemester_kurzbz);
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}
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/**
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* Liefert das Aktuelle Studiensemester oder das darauffolgende
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* @return Studiensemester oder false wenn es keines gibt
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*/
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function getaktorNext()
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// **************************************************************
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// * Laedt das Studiensemester mit der uebergebenen ID
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// * @param $studiensemester_kurzbz Stsem das geladen werden soll
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// **************************************************************
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function load($studiensemester_kurzbz)
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{
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if($stsem=$this->getakt())
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return $stsem;
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else
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$qry = "SELECT * FROM tbl_studiensemester WHERE studiensemester_kurzbz='".addslashes($studiensemester_kurzbz)."'";
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if(!$result=pg_query($this->conn,$qry))
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{
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$qry = "Select studiensemester_kurzbz from tbl_studiensemester where ende >= now() ORDER BY ende";
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if(!$res=pg_exec($this->conn,$qry))
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{
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$this->errormsg = pg_errormessage($this->conn);
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return false;
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}
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if(pg_num_rows($res)>0)
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{
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$erg = pg_fetch_object($res);
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return $erg->studiensemester_kurzbz;
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}
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else
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{
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$this->errormsg = "Kein aktuelles Studiensemester vorhanden";
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return false;
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}
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$this->errormsg = 'Fehler beim lesen des Studiensemesters';
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return false;
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}
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if($row = pg_fetch_object($result))
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{
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$this->studiensemester_kurzbz = $row->studiensemester_kurzbz;
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$this->start = $row->start;
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$this->ende = $row->ende;
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}
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else
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{
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$this->errormsg = "Es ist kein Studiensemester mit der Kurzbezeichung $studiensemester_kurzbz vorhanden";
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return false;
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}
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return true;
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}
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// *******************************************
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// * Prueft die Variablen vor dem Speichern
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// * auf Gueltigkeit.
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// * @return true wenn ok, false im Fehlerfall
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// *******************************************
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function validate()
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{
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if(strlen($this->studiensemester_kurzbz)>16)
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{
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$this->errormsg = 'Studiensemester Kurzbezeichnung darf nicht laenger als 16 Zeichen sein';
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return false;
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}
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if($this->studiensemester_kurzbz=='')
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{
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$this->errormsg = 'Es muss eine Kurzbezeichnung eingegeben 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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// * wenn $var '' ist wird "null" zurueckgegeben
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// * wenn $var !='' ist werden Datenbankkritische
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// * zeichen mit backslash versehen und das ergbnis
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// * unter hochkomma gesetzt.
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// ************************************************
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function addslashes($var)
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{
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return ($var!=''?"'".addslashes($var)."'":'null');
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}
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// ************************************************************
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// * Speichert das Studiensemester in die Datenbank
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// * Wenn $new auf true gesetzt ist wird ein neuer Datensatz
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// * angelegt, ansonsten der Datensatz upgedated
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// * @return true wenn erfolgreich, false im Fehlerfall
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// ************************************************************
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function save()
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{
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//Variablen auf Gueltigkeit pruefen
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if(!$this->validate())
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return false;
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if($this->new)
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{
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$qry = "INSERT INTO tbl_studiensemester (studiensemester_kurzbz, start, ende)
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VALUES('".addslashes($this->studiensemester_kurzbz)."',".
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$this->addslashes($this->start).','.
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$this->addslashes($this->ende).');';
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}
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else
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{
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$qry = 'UPDATE tbl_studiensemester SET'.
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' start='.$this->addslashes($this->start).','.
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' ende='.$this->addslashes($this->ende).
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" WHERE studiensemester_kurzbz='$this->studiensemester_kurzbz'";
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}
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if(pg_query($this->conn,$qry))
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{
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//Log schreiben
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return true;
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}
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else
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{
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$this->errormsg = 'Fehler beim Speichern des Studiensemesters:'.$qry;
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return false;
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}
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}
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function delete()
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{
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}
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}
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?>
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