public function updateFields($event)
{
$post = Yii::$app->request->post();
if (($model = Seo::findOne(['item_id' => $this->owner->id, 'modelName' => $this->owner->className()])) === null) {
$model = new Seo();
}
$post['Seo']['item_id'] = $this->owner->id;
$model->load($post);
$model->save();
}
