public function afterUpdate()
{
$original = $this->getOriginal();
// generowanie url dla podkategorii i artykułów
if (isset($original['slug']) && $original['slug'] !== $this->slug) {
$this->getSubcategories()->each(function ($elem) {
if ($elem->id !== $this->id) {
$elem->generateUrl();
}
Post::queueUrls(array_fetch($elem->posts->toArray(), 'id'));
});
}
}
