Assert ShippingAddress failed

[Loocos]

Hi!

Just tried your plugin and it seems to have an error when going from cart to checkout (address).
An exception has been thrown during the rendering of a template ("Warning: assert(): assert($shippingAddress instanceof AddressInterface) failed").
At first time, the shipping and billing address are null.

And I saw in your MangoSyliusResolvePaymentMethodForOrder class than you :
$shippingAddress = $order->getShippingAddress(); assert($shippingAddress instanceof AddressInterface);
But you doesn't check if it's null or not.

I would suggest to add this between this two lines :
if(is_null($shippingAddress)) return true;
Everything should be eligible until we got an address, am I wrong ?
I would like to have your confirmation. Can submit a PR if you're ok with that.

[jaroslavtyc]

@Loocos Hi, I have made a fix proposal to 480f46e

It does not follow your suggestion as it would change current behavior, just solve fatal.

To make a payment allowed for order without shipping address (How did you do that? Do you have some "license delivered by email" products ?), simply do not set any restrictive zone to it. In that case this will be triggered

sylius-payment-restrictions-plugin/src/Model/ThreeBRSSyliusResolvePaymentMethodForOrder.php

Line 34 in 05d9815

if ($paymentMethod->getZone() === null) {