Airship\Cabin\Hull\Blueprint\Blog::getCommentDepth PHP 메소드

    public function getCommentDepth(int $commentId) : int
    {
        $parent = $this->db->cell('SELECT replyto FROM hull_blog_comments WHERE commentid = ?', $commentId);
        if (!$parent) {
            return 0;
        }
        return 1 + $this->getCommentDepth($parent);
    }