Define an extra function for all the phoenix modules

Questions & Help Questions
3

I created use modules for schemas and context modules in my application to include things like this.

For example

defmodule MyApp.Schema do
  defmacro __using__(_) do
    quote do
      use Ecto.Schema
      import Ecto.Changeset
      alias Ecto.Changeset
    
      import MyApp.ChangesetHelpers
    end
  end
end

defmodule MyApp.ChangesetHelpers do
  def put_assoc_new ...
end 

defmodule MyApp.User do
  use MyApp.Schema
  schema "users" ...
end