Services/Tracking/classes/class.ilLPStatusManual.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 ilLPStatusManual extends ilLPStatus
{

        function ilLPStatusManual($a_obj_id)
        {
                global $ilDB;

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

        function _getNotAttempted($a_obj_id)
        {
                global $ilObjDataCache;

                global $ilBench;
                $ilBench->start('LearningProgress','9161_LPStatusManual_notAttempted');

                switch($ilObjDataCache->lookupType($a_obj_id))
                {
                        case 'crs':

                                include_once 'Modules/Course/classes/class.ilCourseParticipants.php';
                                $members_obj = ilCourseParticipants::_getInstanceByObjId($a_obj_id);
                                $members = $members_obj->getParticipants();
                        
                                // diff in progress and completed (use stored result in LPStatusWrapper)
                                $users = array_diff($members,$inp = ilLPStatusWrapper::_getInProgress($a_obj_id));
                                $users = array_diff($users,$com = ilLPStatusWrapper::_getCompleted($a_obj_id));

                                $ilBench->stop('LearningProgress','9161_LPStatusManual_notAttempted');
                                return $users;

                        case 'grp':
                                
                                include_once 'classes/class.ilObjGroup.php';

                                $members = ilObjGroup::_getMembers($a_obj_id);
                                // diff in progress and completed (use stored result in LPStatusWrapper)
                                $users = array_diff($members,$inp = ilLPStatusWrapper::_getInProgress($a_obj_id));
                                $users = array_diff($users,$com = ilLPStatusWrapper::_getCompleted($a_obj_id));

                                $ilBench->stop('LearningProgress','9161_LPStatusManual_notAttempted');
                                return $users;

                        default:
                                $ilBench->stop('LearningProgress','9161_LPStatusManual_notAttempted');
                                return array();
                }
        }

        function _getInProgress($a_obj_id)
        {
                global $ilObjDataCache;

                global $ilBench;
                $ilBench->start('LearningProgress','9162_LPStatusManual_inProgress');


                switch($ilObjDataCache->lookupType($a_obj_id))
                {
                        case 'lm':
                        case 'htlm':
                                $ilBench->stop('LearningProgress','9162_LPStatusManual_inProgress');
                                return ilLPStatusManual::__getLMInProgress($a_obj_id);

                        case 'crs':
                                $ilBench->stop('LearningProgress','9162_LPStatusManual_inProgress');
                                return ilLPStatusManual::__getCourseInProgress($a_obj_id);

                        case 'grp':
                                $ilBench->stop('LearningProgress','9162_LPStatusManual_inProgress');
                                return ilLPStatusManual::__getGroupInProgress($a_obj_id);

                        default:
                                $ilBench->stop('LearningProgress','9162_LPStatusManual_inProgress');
                                echo "ilLPStatusManual: unknown type ".$ilObjDataCache->lookupType($a_obj_id);
                                
                }
                return array();
        }

        function _getCompleted($a_obj_id)
        {
                global $ilDB;

                global $ilBench;
                $ilBench->start('LearningProgress','9163_LPStatusManual_completed');

                $query = "SELECT DISTINCT(usr_id) as user_id FROM ut_lp_marks ".
                        "WHERE obj_id = '".$a_obj_id."' ".
                        "AND completed = '1'";

                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $usr_ids[] = $row->user_id;
                }
                $ilBench->stop('LearningProgress','9163_LPStatusManual_completed');
                return $usr_ids ? $usr_ids : array();
        }

        // Private
        function __getLMInProgress($a_obj_id)
        {
                global $ilDB;

                $completed = ilLPStatusWrapper::_getCompleted($a_obj_id);
                $query = "SELECT DISTINCT(user_id) FROM ut_learning_progress ".
                        "WHERE obj_id = '".$a_obj_id."'";

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

        function __getCourseInProgress($a_obj_id)
        {
                global $ilDB;

                $completed = ilLPStatusWrapper::_getCompleted($a_obj_id);
                
                include_once 'Modules/Course/classes/class.ilCourseParticipants.php';
                $members_obj = ilCourseParticipants::_getInstanceByObjId($a_obj_id);
                $members = $members_obj->getParticipants();

                $query = "SELECT DISTINCT(user_id) FROM ut_learning_progress ".
                        "WHERE obj_id = '".$a_obj_id."' AND obj_type = 'crs'";

                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        if(!in_array($row->user_id,$completed) and in_array($row->user_id,$members))
                        {
                                $user_ids[] = $row->user_id;
                        }
                }
                return $user_ids ? $user_ids : array();
        }

        function __getGroupInProgress($a_obj_id)
        {
                global $ilDB;

                $completed = ilLPStatusWrapper::_getCompleted($a_obj_id);
                
                include_once 'classes/class.ilObjGroup.php';
                $members = ilObjGroup::_getMembers($a_obj_id);

                $query = "SELECT DISTINCT(user_id) FROM ut_learning_progress ".
                        "WHERE obj_id = '".$a_obj_id."' AND obj_type = 'grp'";

                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        if(!in_array($row->user_id,$completed) and in_array($row->user_id,$members))
                        {
                                $user_ids[] = $row->user_id;
                        }
                }
                return $user_ids ? $user_ids : array();
        }
}       
?>