class.ilGroupParticipants.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2006 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/Membership/classes/class.ilParticipants.php');

class ilGroupParticipants extends ilParticipants
{
        protected static $instances = array();

        protected function __construct($a_obj_id)
        {
                $this->type = 'grp';
                parent::__construct($a_obj_id);
        }
        
        public static function _getInstanceByObjId($a_obj_id)
        {
                if(isset(self::$instances[$a_obj_id]) and self::$instances[$a_obj_id])
                {
                        return self::$instances[$a_obj_id];
                }
                return self::$instances[$a_obj_id] = new ilGroupParticipants($a_obj_id);
        }
        
        public static function _isParticipant($a_ref_id,$a_usr_id)
        {
                global $rbacreview,$ilObjDataCache,$ilDB,$ilLog;

                $rolf = $rbacreview->getRoleFolderOfObject($a_ref_id);
                if(!isset($rolf['ref_id']) or !$rolf['ref_id'])
                {
                        $title = $ilObjDataCache->lookupTitle($ilObjDataCache->lookupObjId($a_ref_id));
                        $ilLog->write(__METHOD__.': Found object without role folder. Ref_id: '.$a_ref_id.', title: '.$title);
                        $ilLog->logStack();
                        
                        return false;
                }
                $local_roles = $rbacreview->getRolesOfRoleFolder($rolf["ref_id"],false);
                
        return $rbacreview->isAssignedToAtLeastOneGivenRole($a_usr_id, $local_roles);
        }
        
        
}
?>