mirror of
https://github.com/FH-Complete/FHC-Core.git
synced 2026-06-01 20:29:29 +00:00
Rudolf Hangl
264 lines
7.7 KiB
PHP
264 lines
7.7 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> and
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* Rudolf Hangl <rudolf.hangl@technikum-wien.at>.
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*/
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/**
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* Klasse news (FAS-Online)
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* @create 04-12-2006
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*/
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class news
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{
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var $conn; // @var resource DB-Handle
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var $new; // @var boolean
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var $errormsg; // @var string
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var $result = array(); // @var fachbereich Objekt
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//Tabellenspalten
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var $news_id; // @var serial
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var $betreff; // @var varchar(128)
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var $text; // @var string
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var $semester; // @var smallint
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var $uid; // @var varchar(16)
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var $studiengang_kz; // @var integer
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var $verfasser; // @var varchar(64)
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var $updateamum; // @var timestamp
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var $updatevon=0; // @var string
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var $insertamum; // @var timestamp
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var $insertvon=0; // @var string
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/**
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* Konstruktor
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* @param $conn Connection zur DB
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* $news_id ID der zu ladenden Funktion
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*/
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function news($conn, $news_id=null)
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{
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$this->conn = $conn;
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if($news_id != null)
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$this->load($news_id);
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}
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/**
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* Laedt alle verfuegbaren Benutzerfunktionen
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* @return true wenn ok, false im Fehlerfall
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*/
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function getAll()
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{
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$qry = 'SELECT * FROM tbl_news order by news_id;';
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if(!$res = pg_query($this->conn, $qry))
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{
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$this->errormsg = 'Fehler beim laden der Datensaetze';
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return false;
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}
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while($row = pg_fetch_object($res))
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{
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$news_obj = new news($this->conn);
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$news_obj->news_id = $row->news_id;
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$news_obj->betreff = $row->betreff;
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$news_obj->text = $row->text;
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$news_obj->semester = $row->semester;
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$news_obj->uid = $row->uid;
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$news_obj->studiengang_kz=$row->studiengang_kz;
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$news_obj->verfasser = $row->verfasser;
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$news_obj->insertamum=$row->insertamum;
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$news_obj->insertvon=$row->insertvon;
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$news_obj->updateamum=$row->updateamum;
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$news_obj->updatevon=$row->updatevon;
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$this->result[] = $news_obj;
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}
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return true;
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}
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/**
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* Laedt eine News
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* @param $news_id ID der zu ladenden Funktion
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* @return true wenn ok, false im Fehlerfall
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*/
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function load($news_id)
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{
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if($news_id == '' || !is_nan($news_id))
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{
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$this->errormsg = 'news_id muß eine gültige Zahl sein';
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return false;
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}
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$qry = "SELECT * FROM tbl_news WHERE news_id = '$this->news_id';";
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if(!$res = pg_query($this->conn, $qry))
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{
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$this->errormsg = 'Fehler beim laden des Datensatzes';
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return false;
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}
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if($row=pg_fetch_object($res))
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{
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$this->news_id = $row->news_id;
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$this->betreff = $row->betreff;
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$this->text = $row->text;
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$this->semester = $row->semester;
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$this->uid = $row->uid;
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$this->studiengang_kz = $row->studiengang_kz;
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$this->verfasser = $row->verfasser;
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$this->insertamum =$row->insertamum;
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$this->insertvon =$row->insertvon;
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$this->updateamum = $row->updateamum;
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$this->updatevon = $row->updatevon;
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}
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else
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{
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$this->errormsg = 'Es ist kein Datensatz mit dieser ID 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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* Loescht einen Datensatz
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* @param $news_id id des Datensatzes der geloescht werden soll
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* @return true wenn ok, false im Fehlerfall
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*/
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function delete($news_id)
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{
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$this->errormsg = 'Noch nicht implementiert';
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return false;
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}
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function addslashes($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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* Prueft die Gueltigkeit der Variablen
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* @return true wenn ok, false im Fehlerfall
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*/
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function checkvars()
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{
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$this->betreff = str_replace("'",'´',$this->betreff);
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$this->text = str_replace("'",'´',$this->text);
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$this->verfasser = str_replace("'",'´',$this->verfasser);
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//Laenge Pruefen
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if(strlen($this->betreff)>128)
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{
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$this->errormsg = "Betreff darf nicht laenger als 128 Zeichen sein bei <b>$this->news_id</b> - $this->betreff";
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return false;
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}
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if(strlen($this->verfasser)>64)
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{
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$this->errormsg = "Verfasser darf nicht laenger als 64 Zeichen sein bei <b>$this->news_id</b> - $this->verfasser";
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return false;
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}
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$this->errormsg = '';
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return true;
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}
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/**
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* Speichert den aktuellen Datensatz
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* @return true wenn ok, false im Fehlerfall
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*/
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function save()
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{
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//Gueltigkeit der Variablen pruefen
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if(!$this->checkvars())
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return false;
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if($this->new)
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{
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//Neuen Datensatz anlegen
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//Pruefen ob funktion_kurzbz befüllt ist
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if($this->news_id == '' || !is_numeric($this->news_id))
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{
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$this->errormsg = 'News_id ungültig';
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return false;
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}
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$qry = 'INSERT INTO tbl_news (news_id, betreff, text, semester, uid, studiengang_kz, verfasser, insertamum, insertvon,
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updateamum, updatevon) VALUES ('.
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$this->addslashes($this->news_id).', '.
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$this->addslashes($this->betreff).', '.
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$this->addslashes($this->text).', '.
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$this->addslashes($this->semester).', '.
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$this->addslashes($this->uid).', '.
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$this->addslashes($this->studiengang_kz).', '.
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$this->addslashes($this->verfasser).', '.
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$this->addslashes($this->insertamum).', '.
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$this->addslashes($this->insertvon).', '.
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$this->addslashes($this->updateamum).', '.
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$this->addslashes($this->updatevon).'); ';
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}
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else
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{
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//bestehenden Datensatz akualisieren
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//Pruefen ob news_id eine gueltige Zahl ist
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if(!is_numeric($this->news_id) || $this->news_id == '')
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{
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$this->errormsg = 'News_id muss eine gueltige Zahl sein';
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return false;
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}
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$qry = 'UPDATE tbl_news SET '.
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'news_id='.$this->addslashes($this->news_id).', '.
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'betreff='.$this->addslashes($this->betreff).', '.
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'text='.$this->addslashes($this->text).', '.
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'semester='.$this->addslashes($this->semester).', '.
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'uid='.$this->addslashes($this->uid).', '.
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'studiengang_kz='.$this->addslashes($this->studiengang_kz).', '.
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'verfasser='.$this->addslashes($this->verfasser).', '.
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'insertamum='.$this->addslashes($this->insertamum).', '.
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'insertvon='.$this->addslashes($this->insertvon).', '.
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'updateamum='.$this->addslashes($this->updateamum).', '.
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'updatevon='.$this->addslashes($this->updatevon).' '.
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'WHERE news_id = '.$this->addslashes($this->news_id).';';
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}
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if(pg_query($this->conn, $qry))
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{
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/*//Log schreiben
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$sql = $qry;
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$qry = "SELECT nextval('log_seq') as id;";
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if(!$row = pg_fetch_object(pg_query($this->conn, $qry)))
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{
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$this->errormsg = 'Fehler beim Auslesen der Log-Sequence';
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return false;
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}
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$qry = "INSERT INTO log(log_pk, creationdate, creationuser, sql) VALUES('$row->id', now(), '$this->updatevon', '".addslashes($sql)."')";
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if(pg_query($this->conn, $qry))
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return true;
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else
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{
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$this->errormsg = 'Fehler beim Speichern des Log-Eintrages';
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return false;
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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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$this->errormsg = 'Fehler beim Speichern des Datensatzes - '.$this->uid;
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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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