class ActiveAdmin::Views::TabbedNavigation

def build_menu_item(item)
  li :id => item.dom_id do |li_element|
    li_element.add_class "current" if current?(item)
    link_path = url_for_menu_item(item)
    if item.children.any?
      li_element.add_class "has_nested"
      text_node link_to(item.name, link_path)
      render_nested_menu(item)
    else
      link_to item.name, link_path
    end
  end
end