/**
  * Get the data for a question
  *
  * @return void
  */
 private function getData()
 {
     // get categories
     $this->categories = BackendSlideshowModel::getCategoriesForDropdown();
     if (empty($this->categories)) {
         $this->redirect(BackendModel::createURLForAction('AddCategory'));
     }
 }
 /**
  * Get the data for a question
  *
  * @return  void
  */
 private function getData()
 {
     // get the record
     $this->record = BackendSlideshowModel::getGallery($this->id);
     $this->settings = BackendSlideshowModel::getAllSettings($this->id);
     // get categories
     $this->categories = BackendSlideshowModel::getCategoriesForDropdown();
 }