<?php
/**
 * $Id$
 *
 * Represents a document field link as per the database table document_fields_link.
 *
 * The contents of this file are subject to the KnowledgeTree Public
 * License Version 1.1.2 ("License"); You may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.knowledgetree.com/KPL
 * 
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
 * See the License for the specific language governing rights and
 * limitations under the License.
 *
 * All copies of the Covered Code must include on each user interface screen:
 *    (i) the "Powered by KnowledgeTree" logo and
 *    (ii) the KnowledgeTree copyright notice
 * in the same form as they appear in the distribution.  See the License for
 * requirements.
 * 
 * The Original Code is: KnowledgeTree Open Source
 * 
 * The Initial Developer of the Original Code is The Jam Warehouse Software
 * (Pty) Ltd, trading as KnowledgeTree.
 * Portions created by The Jam Warehouse Software (Pty) Ltd are Copyright
 * (C) 2007 The Jam Warehouse Software (Pty) Ltd;
 * All Rights Reserved.
 * Contributor( s): ______________________________________
 */

class DocumentFieldLink extends KTEntity {
	
	/** document field link primary key */
	var $iId;
	/** primary key of document to which field is linked */
	var $iMetadataVersionId;
	/** primary key of field to which document is linked */
	var $iDocumentFieldId;
	/** field value */
	var $sValue;

    var $_aFieldToSelect = array(
        'iId' => 'id',
        'iMetadataVersionId' => 'metadata_version_id',
        'iDocumentFieldId' => 'document_field_id',
        'sValue' => 'value',
    );
	
	/**
	* Default constructor 
	*
	* @param 	Primary key of document to which field is linked
	* @param 	Primary key of field to which document is linked
	* @param 	Value of field
	*
	*/
	function DocumentFieldLink($iNewDocumentId = null, $iNewDocumentFieldId = null, $sNewValue = null) {
		//object not create in database yet
		$this->iId = -1;
		$this->iDocumentId = $iNewDocumentId;
		$this->iDocumentFieldId = $iNewDocumentFieldId;
		$this->sValue = $sNewValue;
	}
	
	/**
	* Get the document field link primary key
	*
	*  @return int document field link primary key
	*
	*/
	function getId() {
		return $this->iId;
	}
	
	/**
	* Get the primary key of the document to which the field is linked
	*
	* @return int document primary key to which the field is linked
	*
	*/
	function getMetadataVersionId() {
		return $this->iMetadataVersionId;
	}
	
	/**
	* Set the primary key of the document to which the field is linked
	*
	* @param 	Document primary key to which field is linked
	*
	*/
	function setMetadataVersionId($iNewValue) {
		$this->iMetadataVersionId = $iNewValue;
	}
	
	/**
	* Get the primary key of the field to which the document is linked
	*
	* @return int primary key of field to which the document is related
	*
	*/
	function getDocumentFieldId() {
		return $this->iDocumentFieldId;
	}
	
	/**
	* Set the primary key of the field to which the document is related
	*
	* @param 	New primary key of field to which document is related
	*
	*/
	function setDocumentFieldId($iNewVale) {
		$this->iDocumentFieldId = $iNewValue;
	}
	
	/**
	* Get the value of the field
	*
	* @return String value of the field
	*
	*/
	function getValue() {
		return sanitizeForSQLtoHTML($this->sValue);
	}
	
	/**
	* Set the value of the field
	*
	* @param 	New value of the field
	*
	*/
	function setValue($sNewValue) {
		$this->sValue = sanitizeForSQL($sNewValue);
	}

    function _table () {
        return KTUtil::getTableName('document_fields_link');
    }
	
	/**
	*
	* Static function.  Given a document fields link primary key will create
	* a DocumentFieldLink object and populate it with the corresponding
	* database values
	*
	* @return DocumentFieldLink populated DocumentFieldLink object on success, false otherwise and set $_SESSION["errorMessage"]
	*/
	function &get($iId) {
        return KTEntityUtil::get('DocumentFieldLink', $iId);
	}

    function &getList($sWhereClause = null) {
        return KTEntityUtil::getList2('DocumentFieldLink', $sWhereClause);
    }


    function &getByDocument($oDocument) {
        $oDocument =& KTUtil::getObject('Document', $oDocument);
        $iMetadataVersionId = $oDocument->getMetadataVersionId();
        return KTEntityUtil::getByDict('DocumentFieldLink', array(
            'metadata_version_id' => $iMetadataVersionId,
        ), array('multi' => true));
    }

    function &getByDocumentAndField($oDocument, $oField) {
        $oDocument =& KTUtil::getObject('Document', $oDocument);
        $iMetadataVersionId = $oDocument->getMetadataVersionId();
        return KTEntityUtil::getByDict('DocumentFieldLink', array(
            'metadata_version_id' => $iMetadataVersionId,
            'document_field_id' => KTUtil::getId($oField),
        ));
    }

    function clearAllCaches() {
        return KTEntityUtil::clearAllCaches('DocumentFieldLink');
    }
}
?>