Get module name as atom within a macro

Questions / Help
1

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!

2

Not sure I get your goal, do you need a function that takes e.g. MyProject.Customer as an argument and returns :customer? And also takes MyApp.Auth.Users and returns :users, as another example?

Or are you asking a question about how to get current module name in macros?

3 
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
3 Likes
4

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.