public function store($roomId)
{
$request = json_decode(request()->getContent());
$schedule = new Schedule();
$schedule->date = $request->date;
$schedule->start = $request->start;
$schedule->course_id = $request->course_id;
$schedule->duration = $request->duration;
$schedule->room_id = $roomId;
$saved = $schedule->save();
return response()->json(array('error' => !$saved, 'schedule' => $schedule->toArray()), $saved ? 200 : 500);
}