public function apply($transformer, $header, $node)
{
$page_url = $this->getProperty(self::PROPERTY_SPONSOR_PAGE_URL, $node);
if ($page_url && !Type::isTextEmpty($page_url)) {
$sponsor = Sponsor::create();
$header->withSponsor($sponsor);
$sponsor->withPageUrl($page_url);
}
return $header;
}
/**
* Sets the sponsor for this Article.
*
* @param Sponsor $sponsor The sponsor of article to be set.
*
* @return $this
*/
public function withSponsor($sponsor)
{
Type::enforce($sponsor, Sponsor::getClassName());
$this->sponsor = $sponsor;
return $this;
}
