public function manufacturerFormSucceeded(UI\Form $form, $values)
 {
     $manufacturerId = $this->getParameter('id');
     if ($manufacturerId) {
         $manufacturer = $this->manufacturer->get($manufacturerId);
         if (!$manufacturer) {
             $this->error('Data nebyla nalezena v databázi.', '404');
         } else {
             $manufacturer->update($values);
         }
         $this->flashMessage('Změny uloženy.', 'success');
     } else {
         $manufacturer = $this->manufacturer->insert($values);
         $this->flashMessage('Výrobce vložen do databáze.', 'success');
     }
     $this->redirect('edit', $manufacturer->id);
 }