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

    public function checkCommentReplyTo(int $replyTo, int $blogPostId)
    {
        $parent = $this->db->cell('SELECT blogpost FROM hull_blog_comments WHERE commentid = ?', $replyTo);
        if (empty($parent)) {
            return null;
        }
        if ($parent === $blogPostId) {
            return $replyTo;
        }
        return null;
    }