/**
* Get the plain product id of this item.
*
* <p>For items without attributes this is going to be the same as <code>getId()</code>. If attributes are present,
to use the store address.l return something like a skuId while this method will always return the plain
* product id without any attribute hash.</p>
*
* @return int The product id.
*/
public function getProductId()
{
return ShoppingCart::getBaseProductIdFor($this->getId());
}
