/**
* Format field.
*
* @param array $field A field instance
* @param FeedItem $item An entity instance
*
* @return XDOMElement
*/
protected function format($field, FeedItem $item)
{
$name = $field['name'];
$method = $field['method'];
$value = $item->{$method}();
if (isset($field['cdata'])) {
$value = $this->dom->createCDATASection($value);
$element = $this->dom->createElement($name);
$element->appendChild($value);
} elseif (isset($field['attribute'])) {
$element = $this->dom->createElement($name);
$element->setAttribute($field['attribute'], $item->getLink());
} else {
if (isset($field['date_format'])) {
$format = $field['date_format'];
if (!$value instanceof \DateTime) {
throw new \InvalidArgumentException(sprintf('Field "%s" should be a DateTime instance.', $name));
}
$value = $value->format($format);
}
$element = $this->dom->createElement($name, $value);
}
return $element;
}
/**
* Preview an item that is already cached.
*
* @param FeedItem $feedItem The document FeedItem (retrieving for a ParamConverter with the id)
*
* @return string
*/
public function previewCachedAction(FeedItem $feedItem)
{
return $this->render('Api43FeedBundle:FeedItem:content.html.twig', array('title' => $feedItem->getTitle(), 'content' => $feedItem->getContent(), 'url' => $feedItem->getLink(), 'modal' => true));
}
