public function addTagsToArticle(Article $article, array $tags)
{
$article->tags()->sync($tags);
return $article;
}
public function addStateToArticle(Article $article, $state_id, $last = true, $user_id = null)
{
$article->states()->attach([$state_id => ['last' => $last, 'user_id' => $user_id]]);
return $article;
}
