/**
  * Update the specified resource in storage.
  *
  * @param  Request  $request
  * @param  int  $id
  * @return Response
  */
 public function update(UserRequest $request, User $user)
 {
     $input = $request->all();
     $user->update(['name' => $input['name'], 'password' => bcrypt($input['password'])]);
     if ($request->ajax() || $request->wantsJson()) {
         return new JsonResponse($user);
     }
     flash()->success('aggiornato con successo!');
     return redirect('users');
 }