web.ex

defmodule MyApp.Web do
  # ... Other lines removed for brevity

  def controller do
    quote do
      use Phoenix.Controller

      alias MyApp.Repo
      import Ecto.Model
      import Ecto.Query, only: [from: 2]

      import MyApp.Router.Helpers
      import MyApp.Controllers.Helpers
    end
  end
  
  defmacro __using__(which) when is_atom(which) do
    apply(__MODULE__, which, [])
  end
end