Export elixir Ecto models as plain maps

ecto_utils.ex

defmodule Util.Ecto do
  def export(model = %{__meta__: _meta, __struct__: _struct}) when is_map(model) do
    stripped =
      model
      |> Map.from_struct()
      |> Map.delete(:__meta__)

    associations = model.__struct__.__schema__(:associations)

    Enum.reduce(associations, stripped, fn assoc, model ->
      Map.update!(model, assoc, &export/1)
    end)
  end

  def export(%Ecto.Association.NotLoaded{}) do
    nil
  end

  def export(items) when is_list(items) do
    Enum.map(items, &export/1)
  end
end