refs https://github.com/TryGhost/Ghost/issues/12602
This allows us to backfill the data for testing purposes as well as for
use by existing sites. The mechanism for determining the date of an
unsubscribe event is crude, we use the date of the last update, which we
might expect to be _sometimes_ correct, but not always. We store the
`source` as NULL for unsubscribes as we cannot determine that with any
certainty whatsoever.
no-issue
This value is nullable from the Stripe API so we're making sure that we
can store exact values locally.
SQLite3 does not supports altering columns so instead we have to:
1. Create a temp table and copy the data to it
2. Delete the original table
3. Recreate the original table with the necessary modifications
4. Copy the data from the temp table
5. Drop the temp table
refs #12160
This flag will allow us easier filtering of members via the API
* Added status column to members table
This flag will be used to determine if a member is free or paid, rather
than relying on joins with the customers and subscriptions tables.
* Added migration to populate members.status
As we add the column with a default value of "free" we only need to care
about the paid members here. We also preemptively handle migrations for
SQLite where there are > 998 paid members.
