/**
* Check if product can be bought
*
* @param \Magento\Catalog\Model\Product $product
* @return $this
* @throws \Magento\Framework\Exception\LocalizedException
*/
public function checkProductBuyState($product)
{
parent::checkProductBuyState($product);
$option = $product->getCustomOption('info_buyRequest');
if ($option instanceof \Magento\Quote\Model\Quote\Item\Option) {
$buyRequest = new \Magento\Framework\Object(unserialize($option->getValue()));
if (!$buyRequest->hasLinks()) {
if (!$product->getLinksPurchasedSeparately()) {
$allLinksIds = $this->_linksFactory->create()->addProductToFilter($product->getId())->getAllIds();
$buyRequest->setLinks($allLinksIds);
$product->addCustomOption('info_buyRequest', serialize($buyRequest->getData()));
} else {
throw new \Magento\Framework\Exception\LocalizedException(__('Please specify product link(s).'));
}
}
}
return $this;
}
