user admin: prevent deleting user if its adherent account has flux

src/Controller/CRUD/CRUDController.php

@@ -9,9 +9,20 @@ use Symfony\Component\Form\FormView;
 use Symfony\Component\HttpFoundation\RedirectResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\Security\Core\Exception\AccessDeniedException;
+use App\Utils\CustomEntityManager;
+use App\Entity\User;
+use App\Entity\Flux;
 
 class CRUDController extends Controller
 {
+
+    protected $em;
+
+    public function __construct(CustomEntityManager $em)
+    {
+        $this->em = $em;
+    }
+
     /**
      * Create action.
      *
@@ -220,6 +231,19 @@ class CRUDController extends Controller
             return $this->redirectTo($object);
         }
 
+        // Prevent deleting user if flux related to its Adherent account exist
+        if ($object instanceof User && $object->getAdherent()) {
+            $query = $this->em->getRepository(Flux::class)->getQueryByAdherent($object->getAdherent());
+            if (null != $query && count($query->getResult()) > 0) {
+                $this->addFlash(
+                    'sonata_flash_error',
+                    'Vous ne pouvez pas supprimer ce compte utilisateur car des flux en relation à son compte Adhérent existent.'
+                );
+
+                return $this->redirectTo($object);
+            }
+        }
+
         return parent::deleteAction($id);
     }