/**
  * Update the specified resource in storage.
  * PUT /reservations/{id}
  *
  * @param  int  $id
  * @return Response
  */
 public function update($id)
 {
     $user = User::whereUsername(Input::get('username'))->first();
     $table = Table::whereNumber(Input::get('table'))->first();
     $reservation = Reservation::find($id);
     $reservation->user_id = $user->id;
     $reservation->table_id = $table->id;
     $reservation->reservation_start = Input::get('start');
     $reservation->reservation_end = Input::get('end');
     $reservation->active = Input::get('active');
     $reservation->save();
     return Response::json(['data' => 'Reservation updated'], 200);
 }