diff options
Diffstat (limited to 'priv/repo/migrations/20200914105638_delete_notification_without_activity.exs')
-rw-r--r-- | priv/repo/migrations/20200914105638_delete_notification_without_activity.exs | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/priv/repo/migrations/20200914105638_delete_notification_without_activity.exs b/priv/repo/migrations/20200914105638_delete_notification_without_activity.exs new file mode 100644 index 000000000..9333fc5a1 --- /dev/null +++ b/priv/repo/migrations/20200914105638_delete_notification_without_activity.exs @@ -0,0 +1,30 @@ +defmodule Pleroma.Repo.Migrations.DeleteNotificationWithoutActivity do + use Ecto.Migration + + import Ecto.Query + alias Pleroma.Repo + + def up do + from( + q in Pleroma.Notification, + left_join: c in assoc(q, :activity), + select: %{id: type(q.id, :integer)}, + where: is_nil(c.id) + ) + |> Repo.chunk_stream(1_000, :batches) + |> Stream.each(fn records -> + notification_ids = Enum.map(records, fn %{id: id} -> id end) + + Repo.delete_all( + from(n in "notifications", + where: n.id in ^notification_ids + ) + ) + end) + |> Stream.run() + end + + def down do + :ok + end +end |