<?php

/*
**************************************************************************************************************************
** CORAL Resources Module v. 1.2
**
** Copyright (c) 2010 University of Notre Dame
**
** This file is part of CORAL.
**
** CORAL 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 3 of the License, or (at your option) any later version.
**
** CORAL 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 CORAL.  If not, see <http://www.gnu.org/licenses/>.
**
**************************************************************************************************************************
*/

class ResourceSubject extends DatabaseObject {

	protected function defineRelationships() {}

	protected function overridePrimaryKeyName() {}

	//Delete subject links.
	public function removeResourceSubject($resourceID, $generalDetailSubjectLinkID){
		$query = "DELETE FROM ResourceSubject WHERE resourceID = '" . $resourceID . "' AND generalDetailSubjectLinkID = '" . $generalDetailSubjectLinkID . "'";

		return $this->db->processQuery($query);
	}

	//returns number of subject links that match what is passed.
	public function duplicateCheck($resourceID, $generalDetailSubjectLinkID){
		$query = "SELECT count(*) duplicateCount FROM ResourceSubject WHERE resourceID = '" . $resourceID . "' AND generalDetailSubjectLinkID = '" . $generalDetailSubjectLinkID . "'";
		$result = $this->db->processQuery($query, 'assoc');

		return $result['duplicateCount'];
	}

}

?>
