ktentity.inc
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<?php
/**
* $Id$
*
* Base class for database-backed objects
*
* Copyright (c) 2003 Jam Warehouse http://www.jamwarehouse.com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* @version $Revision$
* @author Neil Blakey-Milner, Jam Warehouse (Pty) Ltd, South Africa
* @package lib
*/
class KTEntity {
/** object primary key */
var $iId;
/**
* Create the current object in the database
*
* @return boolean on successful store, false otherwise and set $_SESSION["errorMessage"]
*
*/
function create() {
if ($this->iId < 0) {
$id = DBUtil::autoInsert($this->_table(), $this->_fieldValues());
if (PEAR::isError($id)) {
$_SESSION["errorMessage"] = $id->toString();
return false;
}
$this->iId = $id;
return true;
}
$_SESSION["errorMessage"] = "Can't create an object that already exists id = " . $this->iId . ' table = ' . $this->_table();
return false;
}
/**
* Update the values in the database table with the object's current values
*
* @return boolean true on successful update, false otherwise and set $_SESSION["errorMessage"]
*
*/
function update() {
if ($this->iId > 0) {
$res = DBUtil::autoUpdate($this->_table(), $this->_fieldValues(), $this->iId);
if (PEAR::isError($res)) {
$_SESSION['errorMessage'] = $res->toString();
}
return true;
}
$_SESSION["errorMessage"] = "Can't update an object that isn't in the database";
return false;
}
/**
* Delete the current object from the database
*
* @return boolean true on successful deletion, false otherwise and set $_SESSION["errorMessage"]
*
*/
function delete() {
if ($this->iId >= 0) {
$res = DBUtil::autoDelete($this->_table(), $this->iId);
if (PEAR::isError($res)) {
$_SESSION['errorMessage'] = $res->toString();
return false;
}
return true;
}
$_SESSION["errorMessage"] = "Can't delete an object that isn't in the database";;
return false;
}
}
class KTEntityUtil {
function &getList($sTable, $sClassName, $sWhereClause = null) {
$sQuery = "SELECT id FROM " . $sTable;/*ok*/
$aParams = array();
if (!is_null($sWhereClause)) {
if (is_string($sWhereClause)) {
if (substr($sWhereClause, 0, 5) != 'WHERE') {
if (substr($sWhereClause, 0, 5) != 'ORDER') {
$sQuery .= ' WHERE';
}
}
$sQuery .= ' ' . $sWhereClause;
} else if (is_array($sWhereClause)) {
if (substr($sWhereClause[0], 0, 5) != 'WHERE') {
if (substr($sWhereClause[0], 0, 5) != 'ORDER') {
$sQuery .= ' WHERE';
}
}
$sQuery .= ' ' . $sWhereClause[0];
$aParams = $sWhereClause[1];
} else {
return new PEAR_Error('Weird WhereClause passed');
}
}
$aIDs = DBUtil::getResultArrayKey(array($sQuery, $aParams), 'id');
$aRet = array();
foreach ($aIDs as $iID) {
$aRet[] =& call_user_func(array($sClassName, 'get'), $iID);
}
return $aRet;
}
}
?>