/**
  * Display a listing of the resource.
  *
  * @return \Illuminate\Http\Response
  */
 public function index(Request $request)
 {
     $filterColumns = ['user_id' => 'end_user_id', 'mastori_id' => 'mastori_id', 'status' => 'status', 'created_at' => 'created_at'];
     $appointments = Appointment::filterColumns($filterColumns)->with('address');
     switch (Auth::user()->userable_type) {
         case 'App\\EndUser':
             $appointments = $appointments->where('end_user_id', Auth::user()->userable->id)->with('mastori');
             break;
         case 'App\\Mastori':
             $appointments = $appointments->where('mastori_id', Auth::user()->userable->id)->with('user');
             break;
         default:
             # code...
             break;
     }
     return $appointments->with('rating')->paginate($request->input('per_page'));
 }