Services/Tracking/classes/class.ilLPStatusTypicalLearningTime.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/Tracking/classes/class.ilLPStatus.php';

class ilLPStatusTypicalLearningTime extends ilLPStatus
{

        function ilLPStatusTypicalLearningTime($a_obj_id)
        {
                global $ilDB;

                parent::ilLPStatus($a_obj_id);
                $this->db =& $ilDB;
        }

        function _getInProgress($a_obj_id)
        {
                global $ilDB;

                include_once './Services/MetaData/classes/class.ilMDEducational.php';

                $status_info = ilLPStatusWrapper::_getStatusInfo($a_obj_id);
                $tlt = $status_info['tlt'];

                $query = "SELECT DISTINCT(user_id) FROM ut_learning_progress ".
                        "WHERE spent_time < '".$tlt."' ".
                        "AND obj_id = '".$a_obj_id."'";

                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $user_ids[] = $row->user_id;
                }
                return $user_ids ? $user_ids : array();
        }

        function _getCompleted($a_obj_id)
        {
                global $ilDB;

                include_once './Services/MetaData/classes/class.ilMDEducational.php';

                $status_info = ilLPStatusWrapper::_getStatusInfo($a_obj_id);
                $tlt = $status_info['tlt'];
                #$tlt = ilMDEducational::_getTypicalLearningTimeSeconds($a_obj_id);
                $query = "SELECT DISTINCT(user_id) FROM ut_learning_progress ".
                        "WHERE spent_time >= '".$tlt."' ".
                        "AND obj_id = '".$a_obj_id."'";

                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $user_ids[] = $row->user_id;
                }
                return $user_ids ? $user_ids : array();
        }

        function _getStatusInfo($a_obj_id)
        {
                include_once './Services/MetaData/classes/class.ilMDEducational.php';
                $status_info['tlt'] = ilMDEducational::_getTypicalLearningTimeSeconds($a_obj_id);

                return $status_info;
        }
}       
?>