/**
* Correct product amount to add to cart.
*
* @param \XLite\Model\Product $product Product to add
* @param integer|null $amount Amount of product
*
* @return integer
*/
protected function correctAmountAsProduct(\XLite\Model\Product $product, $amount)
{
if (is_null($amount) && $product->mustHaveVariants()) {
$amount = 1;
} else {
$amount = parent::correctAmountAsProduct($product, $amount);
}
return $amount;
}
