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ash_paper_trail

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The extension for keeping an audit log of changes to your Ash resources.

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ash_paper_trail lib change_builders changes_only.ex
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lib/change_builders/changes_only.ex 

defmodule AshPaperTrail.ChangeBuilders.ChangesOnly do

  @moduledoc false

  def build_changes(attributes, changeset, result) do

    Enum.reduce(attributes, %{}, &build_attribute_change(&1, changeset, result, &2))

  end



  def build_attribute_change(attribute, changeset, result, changes) do

    if Ash.Changeset.changing_attribute?(changeset, attribute.name) do

      value = Map.get(result, attribute.name)



      {:ok, dumped_value} =

        Ash.Type.dump_to_embedded(attribute.type, value, attribute.constraints)



      Map.put(changes, attribute.name, dumped_value)

    else

      changes

    end

  end

end