/**
* If the cart's shipping amount is not defined, then put an empty Money
* value
*
* @param CartInterface $cart Cart
*/
public function validateEmptyShippingAmount(CartInterface $cart)
{
$shippingAmount = $cart->getShippingAmount();
if (!$shippingAmount instanceof MoneyInterface) {
$cart->setShippingAmount($this->emptyMoneyWrapper->get());
}
}
/**
* If the cart's shipping amount is not defined, then put an empty Money
* value
*
* @param CartOnLoadEvent $event Event
*
* @return $this Self object
*/
public function checkEmptyShippingAmount(CartOnLoadEvent $event)
{
$cart = $event->getCart();
if (!$cart->getShippingAmount() instanceof Money) {
$cart->setShippingAmount($this->emptyMoneyWrapper->get());
}
return $this;
}
/**
* Returns a zero-initialized Money object
* to be assigned to product prices.
*
* @return MoneyInterface
*/
protected function createZeroAmountMoney()
{
return $this->emptyMoneyWrapper->get();
}