public static function delete_tags_for_post(post_model $post)
{
$post_id = $post->id;
$post_tags = post_tag_model::get(array('post_id' => $post_id));
if ($post_tags === []) {
return;
}
$tag_ids = [];
foreach ($post_tags as $post_tag) {
$tag_ids[] = (int) $post_tag->tag_id;
}
post_tag_model::del(array('post_id' => $post_id));
tag_model::dec_by_ids(array('refer_count' => 1), $tag_ids);
tag_model::del(array('refer_count' => 0));
}
