public function scheduleQuiz()
{
$user_id = Auth::user()->id;
$quiz = Input::get('quiz');
$class = Input::get('class');
$start_time = Input::get('start_time');
$end_time = Input::get('end_time');
$start_timestamp_array = $this->timestampToArray($start_time);
extract($start_timestamp_array);
$datetime_from = Carbon::create($year, $month, $day, $hour, $minute, $second)->toDateTimeString();
$end_timestamp_array = $this->timestampToArray($end_time);
extract($end_timestamp_array);
$datetime_to = Carbon::create($year, $month, $day, $hour, $minute, $second)->toDateTimeString();
$quiz_id = DB::table('quiz')->where('title', '=', $quiz)->pluck('id');
$class_id = DB::table('classes')->where('name', '=', $class)->pluck('id');
$quiz_code = str_random(10);
$quiz_schedule = new QuizSchedule();
$quiz_schedule->user_id = $user_id;
$quiz_schedule->quiz_id = $quiz_id;
$quiz_schedule->class_id = $class_id;
$quiz_schedule->quiz_code = $quiz_code;
$quiz_schedule->datetime_from = $datetime_from;
$quiz_schedule->datetime_to = $datetime_to;
$quiz_schedule->save();
return Redirect::back()->with('message', array('type' => 'success', 'text' => 'Quiz Scheduled!'));
}
