add more generic message when invalid form during person update

Controller/PersonController.php

@@ -31,6 +31,7 @@ use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Security\Core\Role\Role;
 use Chill\PersonBundle\Security\Authorization\PersonVoter;
 use Chill\PersonBundle\Search\SimilarPersonMatcher;
+use Symfony\Component\Translation\TranslatorInterface;
 
 class PersonController extends Controller
 {
@@ -39,10 +40,19 @@ class PersonController extends Controller
      * @var SimilarPersonMatcher
      */
     protected $similarPersonMatcher;
+    
+    /**
+     *
+     * @var TranslatorInterface
+     */
+    protected $translator;
 
-    public function __construct(SimilarPersonMatcher $similarPersonMatcher)
-    {
+    public function __construct(
+        SimilarPersonMatcher $similarPersonMatcher,
+        TranslatorInterface $translator
+    ) {
         $this->similarPersonMatcher = $similarPersonMatcher;
+        $this->translator = $translator;
     }
 
     public function getCFGroup()
@@ -119,8 +129,8 @@ class PersonController extends Controller
 
             if ( ! $form->isValid() ) {
                 $this->get('session')
-                        ->getFlashBag()->add('error', 'The person data provided'
-                              . ' are not valid');
+                        ->getFlashBag()->add('error', $this->translator
+                            ->trans('This form contains errors'));
 
                 return $this->render('ChillPersonBundle:Person:edit.html.twig',
                         array('person' => $person,