Example Active Admin config using auto_link

companies.rb

ActiveAdmin.register Company do
  filter :name
  filter :customer_type, :as => :check_boxes

  index do
    column :name, :sortable => :name do |company|
      auto_link(company)
    end
    column :active do |company|
      company.active? ? icon(:check) : icon(:x)
    end
  end

  show :title => :name do
    panel "Company Details" do
      attributes_table_for company do
        row :name
        row :notes
        row(:active) { company.active? ? icon(:check) : icon(:x) }
      end
    end

    if company.app_servers.count > 0
      panel "App Servers" do
        table_for(company.app_servers) do |t|
          t.column(:name) { |server| link_to server.name, admin_company_app_server_path(company, server) }
          t.column("Internal IP", :internal_ip)
          t.column("External IP", :external_ip)
          t.column() { |server| link_to "Edit", edit_admin_company_app_server_path(company, server) }
        end
      end
    else
      panel "App Servers" do
        link_to 'New App Server', new_admin_company_app_server_path(company)
      end
    end
  end
end