/**
* @param SimpleXMLElement $parent
* @param Logo $logo
*/
private function serializeLogo(SimpleXMLElement $parent, Logo $logo)
{
$imageXML = $parent->addChild('image');
$imageXML->addChild('uri', $logo->getURI());
$imageXML->addChild('link', $logo->getLink() ?: $feed->getURI());
$imageXML->addChild('title', $logo->getTitle() ?: $feed->getTitle());
$description = $logo->getDescription();
$width = $logo->getWidth();
$height = $logo->getHeight();
if (!is_null($description)) {
$imageXML->addChild('description', $description);
}
if (!is_null($width)) {
$imageXML->addChild('width', $width);
}
if (!is_null($height)) {
$imageXML->addChild('height', $height);
}
}