How would you make this better?

sitemap.rb

module Dust
  class Sitemap

    def self.items
      menus.includes(:menu_items).map { |menu| menu.menu_items }.flatten
    end

    def self.names
      Dust.config.menus_on_sitemap.join("|")
    end

    def self.menus
      titles.where('title REGEXP ?', names)
    end

    def self.titles
      Dust::Menu.select('title, id')
    end

  end
end

items.match_(menu_title).map |menu| 
  menu.menu_items.select('title, url, updated_at') 
end