multi_insert_with_ecto.ex

        Multi.new()
        |> Multi.insert(:item_without_hash_id, changeset)
        |> Multi.run(:playlist, fn _repo, %{item_without_hash_id: playlist} ->
          playlist
          |> Playlist.changeset_generate_hash_id()
          |> Repo.update()
        end)
        # iterate over the localized_titles and add to db
        # pass in playlist that was just inserted
        |> Multi.run(:add_localized_titles, fn _repo, %{playlist: playlist} ->
          maps =
            for title <- localized_titles,
                _ = Logger.debug("title #{inspect(%{attributes: title})}"),
                {k, v} <- title do
              IO.puts("#{k} --> #{v}")

              Repo.insert(%PlaylistTitle{
                language_id: k,
                localizedname: v,
                uuid: Ecto.UUID.generate(),
                playlist_id: playlist.id
              })
            end

          Logger.debug("maps #{inspect(%{attributes: maps})}")
          {:ok, maps}
        end)
        |> Repo.transaction()
        |> case do
          {:ok, %{playlist: playlist}} ->
            {:ok, playlist}

          {:error, _, error, _} ->
            {:error, error}
        end