AnyMetadataField.inc.php
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<?php
/**
* $Id:$
*
* KnowledgeTree Community Edition
* Document Management Made Simple
* Copyright (C) 2008, 2009 KnowledgeTree Inc.
* Portions copyright The Jam Warehouse Software (Pty) Limited
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 3 as published by the
* Free Software Foundation.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* You can contact KnowledgeTree Inc., PO Box 7775 #87847, San Francisco,
* California 94120-7775, or email info@knowledgetree.com.
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU General Public License version 3.
*
* In accordance with Section 7(b) of the GNU General Public License version 3,
* these Appropriate Legal Notices must retain the display of the "Powered by
* KnowledgeTree" logo and retain the original copyright notice. If the display of the
* logo is not reasonably feasible for technical reasons, the Appropriate Legal Notices
* must display the words "Powered by KnowledgeTree" and retain the original
* copyright notice.
* Contributor( s): ______________________________________
*
*/
class AnyMetadataField extends DBFieldExpr
{
public $general_op = ExprOp::CONTAINS;
public $references = 0;
public function __construct()
{
parent::__construct('value', 'document_fields_link', _kt('Any Metadata'));
$this->setAlias('Metadata');
}
/*
* Overridden function to adjust table alias in cases of
* the document_fields_link table being included more than once
*
* NOTE this only works in conjunction with code in expr.inc.php which adds the left joins to the db query.
* I don't like this and think we should look for a way to make the table joining more generic
* such that it can be controlled via these classes and thereby contained as a unit.
*/
public function modifyName($name)
{
if ($this->references > 0)
{
static $count = 0;
if ($count >= $this->references)
{
$count = 0;
}
if ((($pos = strpos($name, '.')) !== false) && ($count != 0))
{
$name = substr($name, 0, $pos) . $count . substr($name, $pos);
}
++$count;
}
return $name;
}
public function getInputRequirements()
{
return array('value'=>array('type'=>FieldInputType::TEXT));
}
public function is_valid()
{
return DefaultOpCollection::validateParent($this, DefaultOpCollection::$is);
}
}
?>