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
    public function __createKeywordWhereCondition()
    {
        global $DIC;

        $ilDB = $DIC['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 . ') ';
    }

    public function __createContributeWhereCondition()
    {
        global $DIC;

        $ilDB = $DIC['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 . ') ';
    }
    public function __createTitleWhereCondition()
    {
        global $DIC;

        $ilDB = $DIC['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 $DIC;

        $ilDB = $DIC['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 . ') ';
    }
}