public function toJson($id)
{
//$student = Student::findOrFail($id);
$student = Student::Where('nia', $id)->first();
$error = is_null($student);
$message = $error ? "No se encontró el estudiante" : "";
return response()->json(array('error' => $error, 'student' => $student, 'message' => $message), 200)->header('Content-Type', "application/json; charset=utf-8")->header("Access-Control-Allow-Origin", "*");
}
