/**
  * 告警级别黑名单
  */
 public function actionLevelBlacklist()
 {
     if (Yii::$app->request->isPost) {
         $level = Yii::$app->request->post('level');
         $m = AlarmLevel::findOne(["id" => $level]);
         $exist = AlarmLevelBlacklist::find()->where(["level" => $level])->count();
         if ($m && !$exist) {
             $model = new AlarmLevelBlacklist(['level' => $level, "level_name" => $m->desc]);
             $model->save();
             echo '<script>alert("操作成功")</script>';
         } else {
             echo '<script>alert("操作失败")</script>';
         }
     }
     $model = AlarmLevelBlacklist::find();
     $provider = new ActiveDataProvider(['query' => $model]);
     $ids = AlarmLevelBlacklist::find()->select("level")->column();
     $ids[] = 255;
     $lists = AlarmLevel::find()->where(['not', ['id' => $ids]])->asArray()->all();
     $lists = ArrayHelper::map($lists, 'id', 'desc');
     return $this->render('blacklist', ['dataProvider' => $provider, 'lists' => $lists]);
 }