mirror of
https://github.com/FH-Complete/FHC-Core.git
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Gerald Simane
371 lines
11 KiB
PHP
371 lines
11 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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require_once(dirname(__FILE__).'/basis_db.class.php');
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class news extends basis_db
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{
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public $new; // boolean
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public $result = array(); // news Objekt
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//Tabellenspalten
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public $news_id; // serial
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public $betreff; // varchar(128)
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public $text; // string
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public $semester; // smallint
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public $fachbereich_kurzbz;// varchar(16)
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public $uid; // varchar(16)
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public $studiengang_kz; // integer
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public $verfasser; // varchar(64)
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public $datum; // @date
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public $updateamum; // timestamp
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public $updatevon=0; // string
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public $insertamum; // timestamp
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public $insertvon=0; // string
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public $datum_bis; // @date
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/**
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* Konstruktor
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* @param $conn Connection zur DB
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* $news_id ID der zu ladenden Funktion
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*/
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public function __construct($news_id=null)
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{
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parent::__construct();
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if($news_id != null)
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$this->load($news_id);
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}
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/**
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* Laedt alle verfuegbaren News
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* @return true wenn ok, false im Fehlerfall
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*/
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public function getAll()
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{
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$qry = 'SELECT * FROM campus.tbl_news ORDER BY news_id;';
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if(!$this->db_query($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 = $this->db_fetch_object())
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{
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$news_obj = new news();
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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->fachbereich_kurzbz = $row->fachbereich_kurzbz;
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$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->datum = $row->datum;
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$news_obj->datum_bis = $row->datum_bis;
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$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 alle News die nicht aelter
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* als $maxalter Tage sind
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* @param $maxalter
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*/
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public function getnews($maxalter, $studiengang_kz, $semester, $all=false, $fachbereich_kurzbz=null, $maxnews)
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{
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$qry = "SELECT * FROM campus.tbl_news WHERE true";
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if(trim($maxalter)!='0')
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{
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$qry.= " AND (now()-datum)<interval '$maxalter days'";
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}
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if(!$all)
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$qry.=' AND datum<=now() AND (datum_bis>= now()::date OR datum_bis is null)';
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if(trim($fachbereich_kurzbz)!='*')
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{
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if(is_null($fachbereich_kurzbz) || trim($fachbereich_kurzbz)=='')
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$qry.=' AND fachbereich_kurzbz is null';
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else
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$qry.=" AND fachbereich_kurzbz='".addslashes(trim($fachbereich_kurzbz))."'";
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}
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if(trim($studiengang_kz)=='0')
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$qry.=" AND studiengang_kz='".$studiengang_kz."' ".(trim($semester)!=''?(trim($semester)=='0'?' AND semester=0':''):' AND semester is null');
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elseif(trim($studiengang_kz)=='')
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$qry.='';
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else
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$qry.=" AND ((studiengang_kz='".trim($studiengang_kz)."' AND semester='".trim($semester)."') OR (studiengang_kz='".trim($studiengang_kz)."' AND semester=0) OR (studiengang_kz=0 AND semester='".trim($semester)."') OR (studiengang_kz=0 and semester is null))";
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$qry.=' ORDER BY datum DESC, updateamum DESC';
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if(trim($maxnews)!='0')
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$qry.= " LIMIT ".trim($maxnews);
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# echo "$maxalter, $studiengang_kz, $semester, $all, $fachbereich_kurzbz, $maxnews <br> $qry";
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if($this->db_query($qry))
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{
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while($row = $this->db_fetch_object())
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{
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$newsobj = new news();
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$newsobj->news_id = $row->news_id;
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$newsobj->uid = $row->uid;
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$newsobj->studiengang_kz = $row->studiengang_kz;
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$newsobj->semester = $row->semester;
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$newsobj->fachbereich_kurzbz = $row->fachbereich_kurzbz;
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$newsobj->betreff = $row->betreff;
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$newsobj->text = $row->text;
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$newsobj->verfasser = $row->verfasser;
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$newsobj->datum = $row->datum;
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$newsobj->datum_bis = $row->datum_bis;
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$newsobj->updateamum = $row->updateamum;
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$newsobj->updatevon = $row->updateamum;
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$newsobj->insertamum = $row->insertamum;
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$newsobj->insertvon = $row->insertvon;
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$this->result[] = $newsobj;
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}
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return true;
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}
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else
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{
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$this->errormsg = 'Fehler beim Laden der News';
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return false;
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}
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}
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/**
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* Liefert die News fuer einen Fachbereich
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*
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* @param $fachbereich_kurzbz
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* @param $datum
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* @return boolean
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*/
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public function getFBNews($fachbereich_kurzbz, $datum)
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{
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$qry = "SELECT * FROM campus.tbl_news WHERE fachbereich_kurzbz='$fachbereich_kurzbz'";
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if($datum!='')
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$qry.=" AND datum='$datum'";
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$qry.=" ORDER BY datum";
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if($this->db_query($qry))
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{
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while($row = $this->db_fetch_object())
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{
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$newsobj = new news();
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$newsobj->news_id = $row->news_id;
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$newsobj->uid = $row->uid;
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$newsobj->studiengang_kz = $row->studiengang_kz;
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$newsobj->semester = $row->semester;
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$newsobj->fachbereich_kurzbz = $row->fachbereich_kurzbz;
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$newsobj->betreff = $row->betreff;
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$newsobj->text = $row->text;
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$newsobj->verfasser = $row->verfasser;
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$newsobj->datum = $row->datum;
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$newsobj->datum_bis = $row->datum_bis;
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$newsobj->updateamum = $row->updateamum;
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$newsobj->updatevon = $row->updateamum;
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$newsobj->insertamum = $row->insertamum;
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$newsobj->insertvon = $row->insertvon;
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$this->result[] = $newsobj;
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}
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return true;
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}
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else
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{
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$this->errormsg = 'Fehler beim Laden der News';
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return false;
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}
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}
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/**
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* Laedt eine News
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* @param $news_id ID der zu ladenden Funktion
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* @return true wenn ok, false im Fehlerfall
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*/
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public function load($news_id)
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{
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if(!is_numeric($news_id))
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{
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$this->errormsg = 'news_id muß eine gültige Zahl sein';
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return false;
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}
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$qry = "SELECT * FROM campus.tbl_news WHERE news_id = '$news_id';";
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if(!$this->db_query($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 = $this->db_fetch_object())
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{
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$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->fachbereich_kurzbz = $row->fachbereich_kurzbz;
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$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->datum = $row->datum;
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$this->datum_bis = $row->datum_bis;
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$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 $news_id id des Datensatzes der geloescht werden soll
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* @return true wenn ok, false im Fehlerfall
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*/
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public function delete($news_id)
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{
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if(!is_numeric($news_id))
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{
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$this->errormsg = 'News_id muss eine gueltige Zahl sein';
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return false;
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}
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$qry = "DELETE FROM campus.tbl_news WHERE news_id='$news_id'";
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if($this->db_query($qry))
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return true;
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else
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{
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$this->errormsg = 'Fehler beim Löschen';
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return false;
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}
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}
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/**
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* Prueft die Gueltigkeit der Variablen
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* @return true wenn ok, false im Fehlerfall
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*/
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public function validate()
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{
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//Laenge Pruefen
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if(mb_strlen($this->betreff)>128)
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{
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$this->errormsg = 'Betreff darf nicht laenger als 128 Zeichen sein';
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return false;
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}
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if(mb_strlen($this->verfasser)>64)
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{
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$this->errormsg = 'Verfasser darf nicht laenger als 64 Zeichen sein';
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return false;
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}
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$this->errormsg = '';
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return true;
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}
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/**
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* Speichert den aktuellen Datensatz
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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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//Gueltigkeit der 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 anlegen
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$qry = 'INSERT INTO campus.tbl_news (betreff, text, semester, fachbereich_kurzbz, uid, studiengang_kz, verfasser, datum, datum_bis, insertamum, insertvon,
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updateamum, updatevon) VALUES ('.
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$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($this->fachbereich_kurzbz).', '.
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$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($this->datum).', '.
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$this->addslashes($this->datum_bis).', '.
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$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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$qry = 'UPDATE campus.tbl_news SET '.
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'betreff='.$this->addslashes($this->betreff).', '.
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'text='.$this->addslashes($this->text).', '.
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'semester='.$this->addslashes($this->semester).', '.
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'fachbereich_kurzbz='.$this->addslashes($this->fachbereich_kurzbz).', '.
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'uid='.$this->addslashes($this->uid).', '.
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'studiengang_kz='.$this->addslashes($this->studiengang_kz).', '.
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'verfasser='.$this->addslashes($this->verfasser).', '.
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'datum='.$this->addslashes($this->datum).', '.
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'datum_bis='.$this->addslashes($this->datum_bis).', '.
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'insertamum='.$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($this->news_id).';';
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}
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if($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 Speichern des Datensatzes';
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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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