override footer of ActiveAdmin

override-footer-of-activeadmin.rb

# reference: http://stackoverflow.com/questions/20795152/how-to-remove-the-activeadmin-link-in-the-app

ActiveAdmin.setup do |config|
  config.view_factory.footer = MyFooter
end
class MyFooter < ActiveAdmin::Component
  def build
    super(id: "footer")
    para "Copyright #{Date.today.year} Your Company"
  end
end

# or provide an alternative translation
en:
  active_admin:
    powered_by: "Your custom text"