/**
* Set checkout session flag if order has downloadable product(s)
*
* @param \Magento\Framework\Event\Observer $observer
* @return $this
*/
public function execute(\Magento\Framework\Event\Observer $observer)
{
if (!$this->_checkoutSession->getHasDownloadableProducts()) {
$order = $observer->getEvent()->getOrder();
foreach ($order->getAllItems() as $item) {
/* @var $item \Magento\Sales\Model\Order\Item */
if ($item->getProductType() == \Magento\Downloadable\Model\Product\Type::TYPE_DOWNLOADABLE || $item->getRealProductType() == \Magento\Downloadable\Model\Product\Type::TYPE_DOWNLOADABLE || $item->getProductOptionByCode('is_downloadable')) {
$this->_checkoutSession->setHasDownloadableProducts(true);
break;
}
}
}
return $this;
}