public function getPostCommentsAction($id, ParamFetcherInterface $paramFetcher)
    {
        $post = $this->getPost($id);

        $page = $paramFetcher->get('page');
        $count = $paramFetcher->get('count');

        $criteria = $this->filterCriteria($paramFetcher);
        $criteria['postId'] = $post->getId();

        /** @var PagerInterface $pager */
        $pager = $this->commentManager->getPager($criteria, $page, $count);

        return $pager;
    }