/**
* Add specific filters
*
* @param Collection $collection
* @return Collection
*/
protected function addCollectionFilters(Collection $collection)
{
$relatedProducts = [];
/** @var ProductLinkInterface $linkItem */
foreach ($this->productLinkRepository->getList($this->getProduct()) as $linkItem) {
if ($linkItem->getLinkType() !== $this->getLinkType()) {
continue;
}
$relatedProducts[] = $this->productRepository->get($linkItem->getLinkedProductSku())->getId();
}
if ($relatedProducts) {
$collection->addAttributeToFilter($collection->getIdFieldName(), ['nin' => [$relatedProducts]]);
}
return $collection;
}
