Override footer content in Active Admin gem

active_admin_views_pages_base.rb

# encoding: utf-8
ActiveAdmin::Views::Pages::Base.class_eval do
  private
  # Renders the content for the footer
  def build_footer
    div :id => "footer" do
      para "Copyright © #{Date.today.year.to_s} #{link_to('Example.com', 'http://example.com')}. Powered by #{link_to('Active Admin', 'http://www.activeadmin.info')} #{ActiveAdmin::VERSION}".html_safe
    end
  end
end

application_controller.rb

# app/controllers/application_controller.rb

class ApplicationController < ActionController::Base
  protect_from_forgery
  
  # Override build_footer method in ActiveAdmin::Views::Pages
  require 'active_admin_views_pages_base.rb'
end