/**
* @param AssociationInterface $association
* @param array $productsIdentifiers
*/
protected function addAssociatedProducts(AssociationInterface $association, $productsIdentifiers)
{
foreach ($productsIdentifiers as $productIdentifier) {
$associatedProduct = $this->productRepository->findOneByIdentifier($productIdentifier);
if (null === $associatedProduct) {
throw InvalidArgumentException::expected('associations', 'existing product identifier', 'adder', 'association', $productIdentifier);
}
$association->addProduct($associatedProduct);
}
}