class.ilContainerReferenceAccess.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/Object/classes/class.ilObjectAccess.php');

class ilContainerReferenceAccess extends ilObjectAccess
{
        public function _checkAccess($a_cmd, $a_permission, $a_ref_id, $a_obj_id, $a_user_id = "")
        {
                global $ilUser, $lng, $rbacsystem, $ilAccess, $ilias;

                if ($a_user_id == "")
                {
                        $a_user_id = $ilUser->getId();
                }

                return true;
        }
        
         public static function _isAccessible($a_ref_id)
         {
                global $ilDB,$tree;
                
                $obj_id = ilObject::_lookupObjId($a_ref_id);
                $query = "SELECT target_obj_id FROM container_reference ".
                        "WHERE obj_id = ".$ilDB->quote($obj_id,'integer')." ";
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $target_id = $row->target_obj_id;
                }
                $target_ref_ids = ilObject::_getAllReferences($target_id);
                $target_ref_id = current($target_ref_ids);
                return !$tree->isDeleted($target_ref_id);
         }
} 
?>