/**
  * Handle the command.
  *
  * @param Request    $request
  * @param MessageBag $messages
  * @param Translator $translator
  */
 public function handle(Request $request, MessageBag $messages, Translator $translator)
 {
     if ($this->builder->isAjax()) {
         return;
     }
     $errors = $this->builder->getFormErrors();
     $messages->error($errors->all());
     if ($request->segment(1) == 'admin' && ($stream = $this->builder->getFormStream()) && $stream->isTrashable()) {
         /* @var AssignmentInterface $assignment */
         foreach ($stream->getUniqueAssignments() as $assignment) {
             if ($this->builder->hasFormError($assignment->getFieldSlug())) {
                 $messages->warning($translator->trans('streams::validation.unique_trash', ['attribute' => '"' . $translator->trans($assignment->getFieldName()) . '"']));
             }
         }
     }
 }