page_parts_controller.rb

module Radiant
  class Admin::PagePartsController < ::Radiant::Admin::ResourceController
    def create
      self.model.attributes = params[model_symbol]
      @controller_name = 'page'
      @template_name = 'edit'
      render partial: "page_part", object: model,
        locals: {page_part_counter: params[:index].to_i}
    end
  end
end