protected function Init()
 {
     $this->container = new Container(Request::GetData('container'));
     $selectedID = Request::GetData('selected');
     $this->selected = $selectedID ? ContainerContent::Schema()->ByID($selectedID) : null;
     if (!$this->container->Exists()) {
         //TODO: error
         Response::Redirect(BackendRouter::ModuleUrl(new ContainerList()));
         return true;
     }
     $this->tree = new ContainerContentTreeProvider($this->container);
     $this->containerContent = $this->tree->TopMost();
     $this->hasContents = (bool) $this->containerContent;
     return parent::Init();
 }
 /**
  * Saves the container
  */
 protected function OnSuccess()
 {
     $action = Action::Update();
     if (!$this->container->Exists()) {
         $action = Action::Create();
         $this->container->SetUser(self::Guard()->GetUser());
     }
     $this->container->SetName($this->Value('Name'));
     $this->container->Save();
     $logger = new Logger(self::Guard()->GetUser());
     $logger->ReportContainerAction($this->container, $action);
     if ($this->CanAssignGroup()) {
         $this->SaveRights();
     }
     Response::Redirect(BackendRouter::ModuleUrl(new ContainerList()));
 }