public function updateTags()
{
$oldTags = $this->string2array($this->oldTags);
$newTags = $this->string2array($this->owner->{$this->attribute});
Tag::addTags(array_values(array_diff($newTags, $oldTags)), $this->tagType);
Tag::removeTags(array_values(array_diff($oldTags, $newTags)), $this->tagType);
}
/**
* Look into Tag model by tag type
* @return mixed
*/
private function getAllTags()
{
return Tag::find()->where(['tag_type' => $this->model->className()])->limit(20);
}