public function checkInOut(Request $request)
{
$result_data = ['student_id' => $this->student->id, 'exam_id' => $request->input('exam_id'), 'semester_id' => $this->semester->id];
$result = ExamResult::firstOrCreate($result_data);
if ($request->input('type', 'in') == 'in') {
$result->enter_at = new DateTime();
} else {
$result->exit_at = new DateTime();
}
$result->save();
return response()->json(['error' => false], 200, [], JSON_NUMERIC_CHECK);
}
