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A set of common Ecto interfaces generated on the fly with macros

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ecto_interface lib ecto_interface read list.ex
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lib/ecto_interface/read/list.ex 

defmodule EctoInterface.Read.List do

  @moduledoc """

  All functions that help read data from the database.

  """

  defmacro __using__([schema, plural])

           when is_atom(plural) do

    quote(location: :keep) do

      import Ecto.Query



      @doc """

      Returns all `#{unquote(schema)}` records from a modified query

      """

      @spec unquote(:"list_#{plural}")((Ecto.Query.t() -> Ecto.Query.t())) ::

              list(unquote(schema))

      def unquote(:"list_#{plural}")(subquery) when is_function(subquery, 1),

        do:

          subquery.(from(unquote(schema)))

          |> Application.get_env(:ecto_interface, :default_repo).all()



      @doc """

      Returns all `#{unquote(schema)}` records, unsorted

      """

      @spec unquote(:"list_#{plural}")() :: list(unquote(schema).t())

      def unquote(:"list_#{plural}")(),

        do: from(unquote(schema)) |> Application.get_env(:ecto_interface, :default_repo).all()

    end

  end

end