public function category()
    {
        $category = $this->getCurrentCategory();

        if ($category) {
            $this->blogPosts = $category->BlogPosts();

            if ($this->isRSS()) {
                return $this->rssFeed($this->blogPosts, $category->getLink());
            }
            return $this->render();
        }

        $this->httpError(404, 'Not Found');

        return null;
    }