Sylius/Sylius — pull request #1379 by winzou (2014-04-14 14:29:07+00:00)
Title: Enable payment validation in backend

| Q | A
| ------------- | ---
| Bug fix? | no
| New feature? | yes
| BC breaks? | no
| Deprecations? | no
| Fixed tickets | na
| License | MIT
| Doc PR | na

This fix 2 things:
- the order state, which was stuck on `cart` before. Now thanks to the listener it's changed to `confirmed` when Order is fully paid (listening at order.pre_pay event)
- the proper event dispatching when changing manually the state of a payment. Now it dispatches the payment.pre_state_change event, that triggers itself order.pre_pay and so it confirms the Order

You can now use non-instant payment like check and transfer, and confirm the Order manually once the payment is received from the backend.