method.ex

  def create_contact(conn, %{"classified_contact" => params, "id" => id}) do

    with {:ok, conn} <- CreateContactOperation.run(conn, params, %{classified_id: id}) do
      conn
      |> redirect(to: app_classified_path(conn, :show, id))
    else
      {:error, conn} ->
        conn
        |> show(%{"id" => id})
    end

  end