engine/app/controllers/admin/pages_controller.rb

module Admin
  class PagesController < BaseController

    sections 'contents'

    respond_to :json, :only => [:update, :sort, :get_path]

    def index
      @pages = current_site.pages.roots
    end

    def new
      @page = current_site.pages.build
      @page.parts << PagePart.build_body_part
    end

    def sort
      @page = current_site.pages.find(params[:id])
      @page.sort_children!(params[:children])

      respond_with @page
    end

    def get_path
      page = current_site.pages.build(:parent => current_site.pages.find(params[:parent_id]), :slug => params[:slug].slugify)

      render :json => { :url => page.url, :slug => page.slug }
    end

  end
end