public function actionHtml()
 {
     /** @var SiteMap[] $models */
     $models = SiteMap::find()->all();
     return $this->render('html', ['models' => $models]);
 }
 public function deleteItem()
 {
     /** @var ActiveRecord $owner */
     $owner = $this->owner;
     SiteMap::deleteAll(['model_name' => $owner, 'model_id' => $owner->getPrimaryKey()]);
 }