module Draper::Compatibility::ApiOnly

Draper expects your `ApplicationController` to include `ActionView::Rendering`. The `ApplicationController` generated by Rails 5 API-only applications (created with `rails new –api`) don't by default. However, including `ActionView::Rendering` in `ApplicatonController` breaks `render :json` due to `render_to_body` being overridden.

This compatibility patch fixes the issue by restoring the original `render_to_body` method after including `ActionView::Rendering`. Ultimately, including `ActionView::Rendering` in an ActionController::API may not be supported functionality by Rails (see Rails issue for more detail: github.com/rails/rails/issues/27211). This hack is meant to be a temporary solution until we can find a way to not rely on the controller layer.