pleroma/priv/repo/migrations/20201113060459_remove_purge_expired_activity_worker_from_oban_config.exs

defmodule Pleroma.Repo.Migrations.RemovePurgeExpiredActivityWorkerFromObanConfig do
  use Ecto.Migration

  def change do
    with %Pleroma.ConfigDB{} = config <-
           Pleroma.ConfigDB.get_by_params(%{group: :pleroma, key: Oban}),
         crontab when is_list(crontab) <- config.value[:crontab],
         index when is_integer(index) <-
           Enum.find_index(crontab, fn {_, worker} ->
             worker == Pleroma.Workers.Cron.PurgeExpiredActivitiesWorker
           end) do
      updated_value = Keyword.put(config.value, :crontab, List.delete_at(crontab, index))

      config
      |> Ecto.Changeset.change(value: updated_value)
      |> Pleroma.Repo.update()
    end
  end
end