When using the Stripe Pricing table for one-off purchases
(non-subscriptions) the webhook was encountering an error because it was
expecting subscription information which does not exist for one-off
purchases. This fix addresses that issue ensuring that no errors occur,
that users are added to the appropriate group, and that uses can see
their purchase on the billing page.
Duplicate payments were showing up in the discourse ui for users. Actual
transactions in stripe were not being duplicated. This fix ensures that
when parsing the api response we don't append any duplicates. Added a
duplicate entry to the specs to test for this.
I do think there can be some improvements made to this controller
endpoint, but I'd like to save those for a different and larger PR and
just get this fix out first.
* REFACTOR: Use api to add subscribe link
* FIX: I18n subscribe link
* REFACTOR: Use models to store some data
This enables the plugin to show only subscription information which was
generated on Discourse. Subscription data storage is limited to the
external identifiers Stripe generates so we can interact with the API.
* DEV: Test/linting fixes/rake task
