Magento 2 CategoryFactory exclude current product from collection

Question

I am using an extension auto-selecting related products from the same category. However, I want to exclude the current product from that list which is not really working.

protected $_categoryFactory;
protected $_registry;
$collection = $this->getRelatedProductsCollection($result);

I am getting the current product and ID like that:

$product = $this->_registry->registry('current_product');
$productId = $product->getId();

And then I tried to exclude it like that:

$collection ->removeItemByKey($productId);
$collection ->getSelect()->orderRand();

But I still can see the current product somewhere in the list. What do I need to change to exclude the current product?

Answer 1

You can set your collection to omit the current product using addAttributeToFilter.

E.g. by adding:

$collection->addAttributeToFilter('entity_id', ['neq' => $productId]);