CODEWITHSUNDEEP
elixirecto
Kociamber
Kociamber

Reputation: 1155

Unused macro, compiler warning

I've encountered weird issue with the compiler - it claims that my macro is unused despite the fact that I'm calling it in the same module. It may have something to do with using it in where statement but in the end it shouldn't be a problem I guess. Any ideas folks? ;)

defmodule Module do 
  defmacrop coalesce(left, right) do
    quote do
      fragment("COALESCE(?, ?)", unquote(left), unquote(right))
    end
  end

  def remove(timestamp \\ Timex.now) do
    Schema
    |> where([p], coalesce(p.time, ^timestamp) < ^timestamp)
    |> Repo.delete_all(returning: select_all(Schema))
  end
end

Upvotes: 1

Views: 84

Answers (1)

denis.peplin
denis.peplin

Reputation: 9851

That's because you are not using the macro you defined. You are using Ecto.Query.API.coalesce

Upvotes: 2

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