class.ilLMContentSearch.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.ilAbstractSearch.php';

class ilLMContentSearch extends ilAbstractSearch
{
    public function performSearch()
    {
        $this->setFields(array('content'));

        $in = $this->__createInStatement();
        $where = $this->__createWhereCondition();
        $locate = $this->__createLocateString();

        $query = "SELECT page_id,parent_id,parent_type " .
            $locate .
            "FROM page_object, lm_data " .
            $where .
            "AND obj_id = page_id " .
            $in;
            
        
        $res = $this->db->query($query);
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            // workaround to get term ids for definition ids (which is not the same!!!)
            if ($row->parent_type == "gdf") {
                // it is not a page id anymore now, it is a term id
                $row->page_id = ilGlossaryDefinition::_lookupTermId($row->page_id);
            }

            $this->search_result->addEntry($row->parent_id, $row->parent_type, $this->__prepareFound($row), $row->page_id);
        }

        return $this->search_result;
    }



    // Protected can be overwritten in Like or Fulltext classes
    public function __createInStatement()
    {
        global $DIC;

        $ilDB = $DIC['ilDB'];
        
        if (!$this->getFilter() and !$this->getIdFilter()) {
            return '';
        }
        
        $in = '';
        if ($this->getFilter()) {
            $type = "('";
            $type .= implode("','", $this->getFilter());
            $type .= "')";
            
            $in = " AND parent_type IN " . $type . ' ';
        }
        if ($this->getIdFilter()) {
            $in .= ' AND ';
            $in .= $ilDB->in('parent_id', $this->getIdFilter(), false, 'integer');
        }
        return $in;
    }

    public function __createAndCondition()
    {
        echo "Overwrite me!";
    }
}