Sonata\Exporter\Writer\SitemapWriter::generateVideoLine PHP Метод

    protected function generateVideoLine(array $data)
    {
        $videos = '';
        $builder = array('thumbnail' => 'thumbnail_loc');
        foreach ($data['video'] as $key => $video) {
            $videos .= sprintf('<video:%1$s>%2$s</video:%1$s>', isset($builder[$key]) ? $builder[$key] : $key, $video);
        }
        return sprintf('    ' . '<url><loc>%s</loc><video:video>%s</video:video></url>' . "\n", $data['url'], $videos);
    }