class.ilLikeMetaDataSearch.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2001 ILIAS open source, University of Cologne            |
        |                                                                             |
        | 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. |
        +-----------------------------------------------------------------------------+
*/
 
include_once 'Services/Search/classes/class.ilMetaDataSearch.php';
 
class ilLikeMetaDataSearch extends ilMetaDataSearch
{
 
        // Private
        function __createKeywordWhereCondition()
        {
                global $ilDB;
                
                $concat = ' keyword ';
                $where = " WHERE (";
                $counter = 0;
                foreach($this->query_parser->getQuotedWords() as $word)
                {
                        if($counter++)
                        {
                                $where .= "OR";
                        }
                        $where .= $ilDB->like($concat,'text','%'.$word.'%');
                        #$where .= $concat;
                        #$where .= (" LIKE ('%".$word."%')");
                }
                return $where.') ';
        }               
 
        function __createContributeWhereCondition()
        {
                global $ilDB;
                
                $concat = ' entity ';
                $where = " WHERE (";
                $counter = 0;
                foreach($this->query_parser->getQuotedWords() as $word)
                {
                        if($counter++)
                        {
                                $where .= "OR";
                        }
                        #$where .= $concat;
                        #$where .= (" LIKE ('%".$word."%')");
                        $where .= $ilDB->like($concat,'text','%'.$word.'%');
                }
                return $where.') ';
        }               
        function __createTitleWhereCondition()
        {
                global $ilDB;
                
                /*
                $concat = ' CONCAT(title,coverage) '; // broken if coverage is null
                // DONE: fix coverage search
                $concat = ' title ';
                */
                
                $concat = $ilDB->concat(
                        array(
                                array('title','text'),
                                array('coverage','text')));
                
                
                $where = " WHERE (";
                $counter = 0;
                foreach($this->query_parser->getQuotedWords() as $word)
                {
                        if($counter++)
                        {
                                $where .= "OR";
                        }
                        #$where .= $concat;
                        #$where .= (" LIKE ('%".$word."%')");
                        $where .= $ilDB->like($concat,'text','%'.$word.'%');
                }
                return $where.' )';
        }
 
        public function __createDescriptionWhereCondition()
        {
                global $ilDB;
                
                $concat = ' description ';
                $where = " WHERE (";
                $counter = 0;
                foreach($this->query_parser->getQuotedWords() as $word)
                {
                        if($counter++)
                        {
                                $where .= "OR";
                        }
                        #$where .= $concat;
                        #$where .= (" LIKE ('%".$word."%')");
                        $where .= $ilDB->like($concat,'text','%'.$word.'%');
                }
                return $where.') ';
        }
}
?>