class.ilFulltextMetaDataSearch.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 ilFulltextMetaDataSearch extends ilMetaDAtaSearch
{

        function ilFulltextMetaDataSearch(&$qp_obj)
        {
                parent::ilMetaDataSearch($qp_obj);
        }

        // Private
        function __createKeywordWhereCondition()
        {
                // IN BOOLEAN MODE
                if($this->db->isMysql4_0OrHigher())
                {
                        $query .= " WHERE MATCH(keyword) AGAINST('";
                        foreach($this->query_parser->getQuotedWords(true) as $word)
                        {
                                $query .= $word;
                                $query .= '* ';
                        }
                        $query .= "' IN BOOLEAN MODE) ";
                }
                else
                {
                        // i do not see any reason, but MATCH AGAINST(...) OR MATCH AGAINST(...) does not use an index
                        $query .= " WHERE MATCH (keyword) AGAINST(' ";
                        foreach($this->query_parser->getQuotedWords(true) as $word)
                        {
                                $query .= $word;
                                $query .= ' ';
                        }
                        $query .= "') ";
                }
                return $query;
        }               
        function __createContributeWhereCondition()
        {
                // IN BOOLEAN MODE
                if($this->db->isMysql4_0OrHigher())
                {
                        $query .= " WHERE MATCH(entity) AGAINST('";
                        foreach($this->query_parser->getQuotedWords(true) as $word)
                        {
                                $query .= $word;
                                $query .= '* ';
                        }
                        $query .= "' IN BOOLEAN MODE) ";
                }
                else
                {
                        // i do not see any reason, but MATCH AGAINST(...) OR MATCH AGAINST(...) does not use an index
                        $query .= " WHERE MATCH (entity) AGAINST(' ";
                        foreach($this->query_parser->getQuotedWords(true) as $word)
                        {
                                $query .= $word;
                                $query .= ' ';
                        }
                        $query .= "') ";
                }
                return $query;
        }               
        function __createTitleWhereCondition()
        {
                // IN BOOLEAN MODE
                if($this->db->isMysql4_0OrHigher())
                {
                        $query .= " WHERE MATCH(title,coverage) AGAINST('";
                        foreach($this->query_parser->getQuotedWords(true) as $word)
                        {
                                $query .= $word;
                                $query .= '* ';
                        }
                        $query .= "' IN BOOLEAN MODE) ";
                }
                else
                {
                        // i do not see any reason, but MATCH AGAINST(...) OR MATCH AGAINST(...) does not use an index
                        $query .= " WHERE MATCH (title,coverage) AGAINST(' ";
                        foreach($this->query_parser->getQuotedWords(true) as $word)
                        {
                                $query .= $word;
                                $query .= ' ';
                        }
                        $query .= "') ";
                }
                return $query;
        }               
        function __createDescriptionWhereCondition()
        {
                // IN BOOLEAN MODE
                if($this->db->isMysql4_0OrHigher())
                {
                        $query .= " WHERE MATCH(description) AGAINST('";
                        foreach($this->query_parser->getQuotedWords(true) as $word)
                        {
                                $query .= $word;
                                $query .= '* ';
                        }
                        $query .= "' IN BOOLEAN MODE) ";
                }
                else
                {
                        // i do not see any reason, but MATCH AGAINST(...) OR MATCH AGAINST(...) does not use an index
                        $query .= " WHERE MATCH (description) AGAINST(' ";
                        foreach($this->query_parser->getQuotedWords(true) as $word)
                        {
                                $query .= $word;
                                $query .= ' ';
                        }
                        $query .= "') ";
                }
                return $query;
        }               
}
?>