@shortdoc "A collection of database related tasks"
@moduledoc File.read!("docs/administration/CLI_tasks/database.md")
+ # Rolls back a specific migration (leaving subsequent migrations applied)
+ # Based on https://stackoverflow.com/a/53825840
+ def run(["rollback", version]) do
+ start_pleroma()
+
+ version = String.to_integer(version)
+ re = ~r/^#{version}_.*\.exs/
+ path = Application.app_dir(:pleroma, Path.join(["priv", "repo", "migrations"]))
+
+ result =
+ with {:find, "" <> file} <- {:find, Enum.find(File.ls!(path), &String.match?(&1, re))},
+ {:compile, [{mod, _} | _]} <- {:compile, Code.compile_file(Path.join(path, file))},
+ {:rollback, :ok} <- {:rollback, Ecto.Migrator.down(Repo, version, mod)} do
+ {:ok, "Reversed migration: #{file}"}
+ else
+ {:find, _} -> {:error, "No migration found with version prefix: #{version}"}
+ {:compile, e} -> {:error, "Problem compiling migration module: #{inspect(e)}"}
+ {:rollback, e} -> {:error, "Problem reversing migration: #{inspect(e)}"}
+ e -> {:error, "Something unexpected happened: #{inspect(e)}"}
+ end
+
+ IO.inspect(result)
+ end
+
def run(["remove_embedded_objects" | args]) do
{options, [], []} =
OptionParser.parse(
def change do
create_if_not_exists table(:hashtags_objects, primary_key: false) do
- add(:hashtag_id, references(:hashtags), null: false)
- add(:object_id, references(:objects), null: false)
+ add(:hashtag_id, references(:hashtags), null: false, primary_key: true)
+ add(:object_id, references(:objects), null: false, primary_key: true)
end
create_if_not_exists(unique_index(:hashtags_objects, [:hashtag_id, :object_id]))
def change do
create_if_not_exists table(:data_migration_failed_ids, primary_key: false) do
- add(:data_migration_id, references(:data_migrations), null: false)
- add(:record_id, :bigint, null: false)
+ add(:data_migration_id, references(:data_migrations), null: false, primary_key: true)
+ add(:record_id, :bigint, null: false, primary_key: true)
end
create_if_not_exists(