public function before_filter(&$action, &$args)
{
parent::before_filter($action, $args);
checkObject();
checkObjectModule("schedule");
PageLayout::setTitle(sprintf('%s - %s', Course::findCurrent()->getFullname(), _("Themen")));
$seminar = new Seminar(Course::findCurrent());
$this->forum_activated = $seminar->getSlotModule('forum');
$this->documents_activated = $seminar->getSlotModule('documents');
}
