Merge pull request 'Adapt some migrations so they can be rolled back' (#565) from ilja/akkoma:fix_some_migrations_for_rollback into develop

Reviewed-on: AkkomaGang/akkoma#565
This commit is contained in:
floatingghost 2023-06-26 12:52:22 +00:00
commit 4db42f5ab5
4 changed files with 36 additions and 4 deletions

View file

@ -117,4 +117,16 @@ To fix this, run:
mix pleroma.config delete pleroma frontends
```
which will remove the config from the database. Things should work now.
which will remove the config from the database. Things should work now.
## Migrating back to Pleroma
Akkoma is a hard fork of Pleroma. As such, migrating back is not guaranteed to always work. But if you want to migrate back to Pleroma, you can always try. Just note that you may run into unexpected issues and you're basically on your own. The following are some tips that may help, but note that these are barely tested, so proceed at your own risk.
First you will need to roll back the database migrations. The latest migration both Akkoma and Pleroma still have in common should be 20210416051708, so roll back to that. If you run from source, that should be
```sh
MIX_ENV=prod mix ecto.rollback --to 20210416051708
```
Then switch back to Pleroma for updates (similar to how was done to migrate to Akkoma), and remove the front-ends. The front-ends are installed in the `frontends` folder in the [static directory](../configuration/static_dir.md). Once you are back to Pleroma, you will need to run the database migrations again. See the Pleroma documentation for this.

View file

@ -1,11 +1,19 @@
defmodule Pleroma.Repo.Migrations.ForcePinnedObjectsToExist do
use Ecto.Migration
def change do
def up do
execute("UPDATE users SET pinned_objects = '{}' WHERE pinned_objects IS NULL")
alter table("users") do
modify(:pinned_objects, :map, null: false, default: %{})
end
end
def down do
alter table("users") do
modify(:pinned_objects, :map, null: true, default: nil)
end
execute("UPDATE users SET pinned_objects = NULL WHERE pinned_objects = '{}'")
end
end

View file

@ -1,9 +1,15 @@
defmodule Pleroma.Repo.Migrations.AddMastofeSettings do
use Ecto.Migration
def change do
def up do
alter table(:users) do
add_if_not_exists(:mastofe_settings, :map)
end
end
def down do
alter table(:users) do
remove_if_exists(:mastofe_settings, :map)
end
end
end

View file

@ -1,9 +1,15 @@
defmodule Pleroma.Repo.Migrations.AddLanguageToUsers do
use Ecto.Migration
def change do
def up do
alter table(:users) do
add_if_not_exists(:language, :string)
end
end
def down do
alter table(:users) do
remove_if_exists(:language, :string)
end
end
end