/**
  * Set User Config-Set
  *
  * @param integer $id
  * @return mixed
  */
 public function actionUser()
 {
     $userid = \Yii::$app->user->id;
     $model = ConfigUser::findOne(['user_ID' => $userid]);
     if (!isset($model)) {
         $model = new ConfigUser();
         $model->user_ID = $userid;
         $model->config_ID = null;
     }
     if ($model->load(\Yii::$app->request->post()) && $model->save()) {
         return $this->render('user', ['model' => $model]);
     } else {
         return $this->render('user', ['model' => $model]);
     }
 }