Source for file OrSearch.class.php

<?php
 
require_once HARMONI."dataManager/search/MultipleCriteriaSearch.abstract.php";
/**
 * The OrSearch criteria takes a list of other search criteria and OR's them together in the SQL query.
 *
 * @package harmoni.datamanager.search
 * 
 * @copyright Copyright &copy; 2005, Middlebury College
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
 *
 * @version $Id: OrSearch.class.php,v 1.5 2007/04/12 15:37:25 adamfranco Exp $
 */
class OrSearch extends MultipleCriteriaSearch {
    
    function returnSearchString() {
        $parts = array();
        
        foreach (array_keys($this->_criteria) as $key) {
            if ($string = $this->_criteria[$key]->returnSearchString()) $parts[] = $string;
        }
        
        if (!count($parts)) return null;
        return "(" . implode(" OR ",$parts) . ")";
    }
 
    function postProcess($ids) { return $ids; }
    
}