public function getEntityCollectionFormAction(Request $request)
 {
     $entity = $this->resource->getEntity($request);
     list($rel, $formRel) = $this->getRelsFromEntityCollectionFormRoute($request);
     $formDescription = $this->resource->createEntityCollectionFormDescription($formRel, $entity, $rel);
     $formRepresentation = $this->formNormalizer->normalizeFormDescription($formDescription);
     return $this->viewHandler->handle(View::create($formRepresentation));
 }