class.ilObjStudyProgrammeCollection.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2009 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. |
        +-----------------------------------------------------------------------------+
*/
require_once("./Modules/StudyProgramme/classes/class.ilObjStudyProgramme.php");
 
class ilObjStudyProgrammeCollection extends ArrayObject {
 
        public function __construct(array $data = array()) {
                parent::__construct($data);
        }
 
        public function offsetSet($index, $newval) {
                if(!$this->typeCheck($newval)) {
                        throw new ilException("You cannot add other types than ilObjStudyProgramme-Objects to ilObjStudyProgrammeCollections.");
                }
 
                parent::offsetSet($index, $newval);
        }
 
        public function append($value) {
                if(!$this->typeCheck($value)) {
                        throw new ilException("You cannot add other types than ilObjStudyProgramme-Objects to ilObjStudyProgrammeCollections.");
                }
 
                parent::append($value);
        }
 
        protected function typeCheck($value) {
                if($value instanceof ilObjStudyProgramme) {
                        return true;
                }
                return false;
        }
}