/**
  * @param \DomDocument     $document
  * @param FeedOutInterface $content
  */
 public function setMetas(\DOMDocument $document, FeedOutInterface $content)
 {
     $elements = array();
     $elements[] = $document->createElement('title', htmlspecialchars($content->getTitle()));
     $elements[] = $document->createElement('description', htmlspecialchars($content->getDescription()));
     $elements[] = $document->createElement('link', $content->getLink());
     $elements[] = $document->createElement('lastBuildDate', $content->getLastModified()->format(\DateTime::RSS));
     $elements[] = $document->createElement('pubDate', $content->getLastModified()->format(\DateTime::RSS));
     foreach ($elements as $element) {
         $document->documentElement->firstChild->appendChild($element);
     }
 }
 /**
  * @param \DomDocument     $document
  * @param FeedOutInterface $content
  */
 public function setMetas(\DOMDocument $document, FeedOutInterface $content)
 {
     $elements = array();
     $elements[] = $document->createElement('title', htmlspecialchars($content->getTitle()));
     $elements[] = $document->createElement('subtitle', $content->getDescription());
     $elements[] = $document->createElement('id', $content->getLink());
     $link = $document->createElement('link');
     $link->setAttribute('href', $content->getLink());
     $link->setAttribute('rel', 'self');
     $elements[] = $link;
     $elements[] = $document->createElement('updated', $content->getLastModified()->format(\DateTime::ATOM));
     foreach ($elements as $element) {
         $document->documentElement->appendChild($element);
     }
 }