More than one Configured AdyenHPP Payment Causes Redirect Controller to Fail

[geofflane]

If you have a "Production" and a "Development" AdyenHPP payment method configured in the same application, the AdyenRedirectController#payment_method might fail.

It uses Gateway::AdyenHPP.last which just picks up the last configured one. I overrode it to Gateway::AdyenHPP.where(active: true).last to at least try and get one that's active. It might be better to also look at the environment the application is running under and the one that is configured in the PaymentMethod.

[mvz]

I'm using a different flow by first creating a payment and then sending the user on to Adyen. On return, I fetch the payment method from the order's active payment.