DocumentLink.inc
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<?php
/**
* $Id$
*
* Represents a document link as per the database document_link table.
* Links a child document to a parent document. Direction of relationship
* is defined through document collaboration.
*
* 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 Rob Cherry, Jam Warehouse (Pty) Ltd, South Africa
* @package lib.documentmanagement
*/
class DocumentLink extends KTEntity {
/** primary key value */
var $iId;
/** primary key of user responsible for creating document */
var $iParentDocumentID;
/** document title name */
var $iChildDocumentID;
/** type of link */
var $iLinkTypeID;
/**
* Default constructor
*
* @param Parent document primary key
* @param Child document primary key
*
*/
function DocumentLink($iNewParentDocumentID, $iNewChildDocumentID, $iLinkTypeID) {
//object not created yet
global $default;
$this->iId = -1;
$this->iParentDocumentID = $iNewParentDocumentID;
$this->iChildDocumentID = $iNewChildDocumentID;
$this->iLinkTypeID = $iLinkTypeID;
}
/**
* Get the document field's primary key value
*
* @return int document field's primary key value
*
*/
function getID() {
return $this->iId;
}
/**
* Get the primary key of the parent document
*/
function getParentDocumentID() {
return $this->iParentDocumentID;
}
/**
* Set the primary key of the parent document
*
* @param Primary key of parent document
*
*/
function setParentDocumentID($iNewValue) {
$this->iParentDocumentID = $iNewValue;
}
/**
* Get the child document's primary key
*
* @return int primary key of child document
*
*/
function getChildDocumentID() {
return $this->iChildDocumentID;
}
/**
* Set the child document's primary key
*
* @param Primary key of child document
*
*/
function setChildDocumentID($iNewValue) {
$this->iChildDocumentID = $iNewValue;
}
/**
* Get the primary key of the link type
*/
function getLinkTypeID() {
return $this->iLinkTypeID;
}
/**
* Set the primary key of the link type
*/
function setLinkTypeID($iNewValue) {
$this->iLinkTypeID = $iNewValue;
}
function _fieldValues () {
return array(
'parent_document_id' => $this->iParentDocumentID,
'child_document_id' => $this->iChildDocumentID,
'link_type_id' => $this->iLinkTypeID,
);
}
function _table () {
global $default;
return $default->document_link_table;
}
/**
* Static function.
* Given a document_fields primary key it will create a
* DocumentFields object and populate it with the
* corresponding database values
*
* @return DocumentField populated DocumentField object on successful query, false otherwise and set $_SESSION["errorMessage"]
*/
function & get($iDocumentLinkID) {
global $default;
$sql = $default->db;
$result = $sql->query(array("SELECT * FROM $default->document_link_table WHERE id = ?", $iDocumentLinkID));/*ok*/
if ($result) {
if ($sql->next_record()) {
$oDocumentLink = & new DocumentLink($sql->f("parent_document_id"), $sql->f("child_document_id"), $sql->f("link_type_id"));
$oDocumentLink->iId = $sql->f("id");
return $oDocumentLink;
}
$_SESSION["errorMessage"] = $lang_err_object_not_exist."id = ".$iDocumentLinkID." table = $default->document_link_table";
return false;
}
$_SESSION["errorMessage"] = $lang_err_database;
return false;
}
}
?>