/** * Finds the Docdba model based on its primary key value. * If the model is not found, a 404 HTTP exception will be thrown. * @param string $ID * @param string $MDL_ID * @return Docdba the loaded model * @throws NotFoundHttpException if the model cannot be found */ protected function findModel($ID, $MDL_ID) { if (($model = Docdba::findOne(['ID' => $ID, 'MDL_ID' => $MDL_ID])) !== null) { return $model; } else { throw new NotFoundHttpException('The requested page does not exist.'); } }