public function actionDeleteaduan()
 {
     $model = new ModelAduan();
     $request = Yii::$app->request;
     $data = $model->deleteAduan($request->get('id'));
     header('Content-Type: application/json');
     if ($data == true) {
         // Berhasil
         echo json_encode(array('status' => '1'));
     } else {
         // Gagal
         echo json_encode(array('status' => '2'));
     }
     // URL : http://back.end/index.php?r=api/deleteaduan&id=111111
 }