class.ilLPStatusEvent.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';
include_once './Services/Tracking/classes/class.ilLPStatusWrapper.php';

class ilLPStatusEvent extends ilLPStatus
{

        function __construct($a_obj_id)
        {
                global $ilDB;

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

        static function _getNotAttempted($a_obj_id)
        {               
                $status_info = ilLPStatusWrapper::_getStatusInfo($a_obj_id);
                
                $users = array();
                
                $members = self::getMembers($status_info['crs_id'], true);
                if($members)
                {
                        // diff in progress and completed (use stored result in LPStatusWrapper)
                        $users = array_diff((array) $members, ilLPStatusWrapper::_getInProgress($a_obj_id));
                        $users = array_diff((array) $users, ilLPStatusWrapper::_getCompleted($a_obj_id));
                }

                return $users;
        }

        static function _getInProgress($a_obj_id)
        {
                $status_info = ilLPStatusWrapper::_getStatusInfo($a_obj_id);

                // If registration is disabled in_progress is not available
                if(!$status_info['registration'])
                {
                        return array();
                }
                // If event has occured in_progress is impossible
                if($status_info['starting_time'] < time())
                {
                        return array();
                }

                // Otherwise all users who registered will get the status in progress
                return $status_info['registered_users'] ? $status_info['registered_users'] : array();
        }

        static function _getCompleted($a_obj_id)
        {
                $status_info = ilLPStatusWrapper::_getStatusInfo($a_obj_id);
                return $status_info['participated_users'] ? $status_info['participated_users'] : array();
        }

        static function _getStatusInfo($a_obj_id)
        {
                global $tree;

                include_once './Modules/Session/classes/class.ilEventParticipants.php';
                include_once('./Modules/Session/classes/class.ilObjSession.php');
                include_once('./Modules/Session/classes/class.ilSessionAppointment.php');

                $references     = ilObject::_getAllReferences($a_obj_id);       
                $ref_id = end($references);
                
                $course_ref_id = $tree->checkForParentType($ref_id,'crs');
                $course_obj_id = ilObject::_lookupObjId($course_ref_id);
                
                $status_info = array();
                $status_info['crs_id'] = $course_obj_id;
                $status_info['registration'] = ilObjSession::_lookupRegistrationEnabled($a_obj_id);
                $status_info['title'] = ilObject::_lookupTitle($a_obj_id);
                $status_info['description'] = ilObject::_lookupDescription($a_obj_id);
                
                $time_info = ilSessionAppointment::_lookupAppointment($a_obj_id);
                $status_info['starting_time'] = $time_info['start'];
                $status_info['ending_time'] = $time_info['end'];
                $status_info['fullday'] = $time_info['fullday'];

                $status_info['registered_users'] = ilEventParticipants::_getRegistered($a_obj_id);
                $status_info['participated_users'] = ilEventParticipants::_getParticipated($a_obj_id);

                return $status_info;
        }
        
        function determineStatus($a_obj_id, $a_user_id, $a_obj = null)
        {
                global $ilObjDataCache;
                
                $status = self::LP_STATUS_NOT_ATTEMPTED_NUM;
                switch ($ilObjDataCache->lookupType($a_obj_id))
                {
                        case 'sess':
                                include_once './Modules/Session/classes/class.ilEventParticipants.php';
                                include_once('./Modules/Session/classes/class.ilSessionAppointment.php');
                                include_once('./Modules/Session/classes/class.ilObjSession.php');
                                
                                $time_info = ilSessionAppointment::_lookupAppointment($a_obj_id);
                                $registration = ilObjSession::_lookupRegistrationEnabled($a_obj_id);
                                
                                // If registration is disabled in_progress is not available
                                // If event has occured in_progress is impossible
                                if ($registration && $time_info['start'] >= time())
                                {
                                        // is user registered -> in progress
                                        if (ilEventParticipants::_isRegistered($a_user_id, $a_obj_id))
                                        {
                                                $status = self::LP_STATUS_IN_PROGRESS_NUM;
                                        }
                                }
                                if (ilEventParticipants::_hasParticipated($a_user_id, $a_obj_id))
                                {
                                        $status = self::LP_STATUS_COMPLETED_NUM;
                                }
                                break;
                }
                return $status;         
        }
        
        protected static function getMembers($a_obj_id, $a_is_crs_id = false)
        {               
                // find course in path
                if(!$a_is_crs_id)
                {
                        $references     = ilObject::_getAllReferences($a_obj_id);       
                        $ref_id = end($references);             
                        $course_ref_id = $tree->checkForParentType($ref_id,'crs');
                        $course_obj_id = ilObject::_lookupObjId($course_ref_id);
                }
                else
                {
                        $course_obj_id = $a_obj_id;
                }
                
                include_once 'Modules/Course/classes/class.ilCourseParticipants.php';
                $member_obj = ilCourseParticipants::_getInstanceByObjId($course_obj_id);
                return $member_obj->getMembers();                                               
        }
        
        public static function _lookupCompletedForObject($a_obj_id, $a_user_ids = null)
        {
                if(!$a_user_ids)
                {
                        $a_user_ids = self::getMembers($a_obj_id);
                        if(!$a_user_ids)
                        {
                                return array();
                        }
                }
                return self::_lookupStatusForObject($a_obj_id, self::LP_STATUS_COMPLETED_NUM, $a_user_ids);
        }
        
        public static function _lookupFailedForObject($a_obj_id, $a_user_ids = null)
        {
                return array();
        }
        
        public static function _lookupInProgressForObject($a_obj_id, $a_user_ids = null)
        {
                if(!$a_user_ids)
                {
                        $a_user_ids = self::getMembers($a_obj_id);
                        if(!$a_user_ids)
                        {
                                return array();
                        }
                }
                return self::_lookupStatusForObject($a_obj_id, self::LP_STATUS_IN_PROGRESS_NUM, $a_user_ids);
        }       
}       
?>