Patryk Osmaczko 73a45dd58e feat: add SpectateCommunity api
- added `SpectateCommunity` endpoint, it is supposed to be used in
  scenarios where we want to "Go to public Community" and see its
  content without joining
- added `spectated` field to `Community`, it means we are observing the
  community and its chats but we are not members

Use case:
https://github.com/status-im/status-desktop/issues/7072#issuecomment-1246560885
2022-10-06 21:21:37 +02:00
..
2021-01-08 08:43:16 +01:00

How to write migrations?

We only write up migrations, down migrations are not always possible in sqlite or too complex/too expensive. For example to remove a column you would have to duplicate the table, copy over the data, delete and recreated. This can be very expensive for some tables (user_messages for example), so should not be attempted.

Notes

One issue we faced multiple times is that updates to user_messages can be very expensive, leading to slow upgrade times and interrupted migrations. So avoid writes if not necessary.