If an admin changes the amount on a tax rate, and that rate has been used by adjustments in the past, we need to soft-delete and clone it to preserve the data integrity of previous adjustments that were created using that rate.
This makes it possible to deploy it without releasing it to users since
the toggle is not enabled for anyone.
It aims to make the balance calculation consistent across pages.
This query object is meant to be reusable but those includes are
context-specific and will likely not be needed when reusing the query
elsewhere. If we keep them there, chances are next dev might not notice
it and will introduce a performance regression.
It's simpler and many orders of magnitude more efficient to ask the DB
to aggregate the customer balance based on their orders. It removes
a nasty N+1.
The resulting SQL query is:
```sql
SELECT customers.*, SUM(spree_orders.total - spree_orders.payment_total) AS balance
FROM "customers"
INNER JOIN "spree_orders"
ON "spree_orders"."customer_id" = "customers"."id"
WHERE "customers"."enterprise_id" = 1
AND (completed_at IS NOT NULL)
AND (state != 'canceled')
GROUP BY customers.id
ORDER BY email;
```
DEPRECATION WARNING: `#deliver` is deprecated and will be removed in Rails 5. Use `#deliver_now` to deliver immediately or `#deliver_later` to deliver through Active Job.
Sometimes the objects are not paginated. In this case we need to avoid trying to render pagination data, as it will throw an error. This guard clause also means we can remove messy conditionals from several controllers.
For some reason the process is now working correctly, the authorization step succeeds and a redirect link is stored in the payment with state pending. The payment state is correctly left at pending. Here we add a check for the redirect path sent by stripe and fail the authorization if there is one (it means the payment would need an extra auth step only available in the frontoffice now and probably through email to customer at some point in the future). For some reason the flash with the authorization failure message is not showing up for the user
