App\Models\Forum\Topic::addPost PHP Метод

    public function addPost($poster, $body)
    {
        $post = new Post(['post_text' => $body, 'post_username' => $poster->username, 'poster_id' => $poster->user_id, 'forum_id' => $this->forum_id, 'post_time' => Carbon::now()]);
        DB::transaction(function () use($post) {
            $this->posts()->save($post);
            $this->refreshCache();
            if ($this->forum !== null) {
                $this->forum->refreshCache();
            }
            if ($post->user !== null) {
                $post->user->refreshForumCache($this->forum, 1);
            }
        });
        return $post;
    }