davemccrea

davemccrea

Get module name as atom within a macro

Is it possible to generate the module name as an atom within a macro?

defmodule MyProject.Schema do
  defmacro __using__(opts) do
    quote do
      use Ecto.Schema
      import Ecto
      import Ecto.Changeset
      import Ecto.Query

      def base_query(), do: from(__MODULE__, as: :?????)

      # common functions used by most schemas ...
  end
end

The base_query() would ideally resolve to:

def base_query(), do: from(MyProject.Customer, as: :customer)

Thanks!

Marked As Solved Switch mode

kartheek

kartheek

defmacro __using__(schema: schema) do # opts
    quote do
      use Ecto.Schema
      import Ecto
      import Ecto.Changeset
      import Ecto.Query
      
      
      def base_query(), do: from(__MODULE__, as: unquote(schema))# unquote(opts[:schema]))
    end
  end

Then you can use it like:

  use MyProject.Schema, schema: :some_name

Last Post!

davemccrea

davemccrea

I am searching for a way to get the module name as an atom. For example: :projects from MyProject.SomeModule.SomeOthermodule.Projects. I think @kartheek’s solution is probably the most appropriate for my use case however.

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