BasketBuilder::isProductAvailable

protected function isProductAvailable($basketCode, $productFormData, $productProviderData, $isProductDataNeedUpdate)
{
	$result = true;

	if($this->getOrder()->getId() <= 0 && (empty($productProviderData[$basketCode]) || !$this->cacheProductProviderData || $isProductDataNeedUpdate))
	{
		if(empty($productProviderData[$basketCode]) && $productFormData["PRODUCT_PROVIDER_CLASS"] <> '')
		{
			$result = false;
		}
	}

	return $result;
}