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eventful

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Provide Event tracking for your Ecto Model

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eventful lib eventful transitable.ex
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lib/eventful/transitable.ex 

defmodule Eventful.Transitable do

  defmacro __using__(options) do

    field = Keyword.get(options, :eventful_state, :current_state)

    transitions_module = Keyword.fetch!(options, :transitions_module)



    quote do

      import Ecto.Changeset



      def state_changeset(%_{} = resource, attrs) do

        resource

        |> cast(attrs, [unquote(field)])

        |> validate_required(unquote(field))

        |> validate_inclusion(

          unquote(field),

          unquote(transitions_module).valid_states()

        )

      end

    end

  end

end