GeneralTextField.inc.php
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<?php
/**
* $Id:$
*
* KnowledgeTree Community Edition
* Document Management Made Simple
* Copyright (C) 2008, 2009, 2010 KnowledgeTree Inc.
*
*
* 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 to combine multiple search fields under the heading of GeneralText search
*
* Fields are added to the GeneralText search by declaring and initialising the
* ${fieldclass}->general_op variable within the field class you would like to
* include in the GeneralText search. To do this, add the following class variable
* declaration:
*
* public $general_op = ExprOp::CONTAINS;
*
* At the time of writing (2009/05/15) the following field classes are included:
*
* AnyMetadataField
* DiscussionTextField
* DocumentIdField
* FilenameField
* FullPathField
* TitleField
*
*/
class GeneralTextField extends SearchableText
{
public function __construct()
{
parent::__construct('General', _kt('General Text'));
$this->setAlias('GeneralText');
}
public function getInputRequirements()
{
return array('value'=>array('type'=>FieldInputType::TEXT));
}
public function is_valid()
{
return DefaultOpCollection::validateParent($this, DefaultOpCollection::$contains);
}
public function rewrite(&$left, &$op, &$right)
{
// note the grouping of the db queries
$left = new OpExpr(new DocumentTextField(), ExprOp::CONTAINS, $right);
$op = ExprOp::OP_OR;
$value = $right;
$right=null;
$registry = ExprFieldRegistry::getRegistry();
$classes = $registry->getGeneralTextClasses();
while (!empty($classes))
{
$classname = array_pop($classes);
$obj = new $classname();
$exprop = $obj->general_op;
$newexpr = new OpExpr($obj, $exprop, $value);
if (empty($right))
{
$right = $newexpr;
}
else
{
$right = new OpExpr($right, ExprOp::OP_OR, $newexpr);
}
}
}
}
?>