/**
  * Update the specified Collection in storage.
  *
  * @param  int              $id
  * @param UpdateCollectionRequest $request
  *
  * @return Response
  */
 public function update($id, UpdateCollectionRequest $request)
 {
     $collection = $this->service->find($id);
     if (empty($collection)) {
         Flash::error('Collection não encontrado');
         return redirect(route('collections.index'));
     }
     $collection = $this->service->update($request->all(), $id);
     Flash::success('Collection atualizado com sucesso.');
     return redirect(route('collections.index'));
 }