public function renderForContent(ContentInfo $contentInfo, array $options = array(), $provider = null)
    {
        if (isset($provider)) {
            $options['provider'] = $provider;
        }

        $request = $this->getCurrentRequest();
        if (!isset($request)) {
            throw new RuntimeException('Comments rendering needs the Request.');
        }

        return $this->commentsRenderer->renderForContent($contentInfo, $request, $options);
    }