Proposed changes to `payment_processor.subscription`

[deanpcmad]

If you have a number of different plans, it can be hard to grab the subscription for a customer.

You can't just do @user.payment_processor.subscription to grab that user's subscription, as it checks by the name.

In the billing code I currently use in one of my apps, which I'm hoping to migrate to Pay, I have a default boolean and then in the account model it's just a has_one association.

has_one :subscription, -> { where(default: true) }, class_name: "Billing::Subscription"

Thoughts?

[excid3]

Do you have a more thorough example? You can pass a plan to the subscription method to filter by the plan ID too.