protected function Init() { $this->navigation = new ContentNavigation(Request::GetData('navigation')); if (!$this->navigation->Exists()) { Response::Redirect(BackendRouter::ModuleUrl(new Overview())); return true; } $this->tree = new NavigationTreeProvider($this->navigation); $this->item = $this->tree->TopMost(); $this->hasItems = (bool) $this->item; return parent::Init(); }