class ActiveAdmin::Namespace

def unload_resources!
  resources.each do |resource|
    parent = (module_name || 'Object').constantize
    name   = resource.controller_name.split('::').last
    parent.send(:remove_const, name) if parent.const_defined?(name, false)
    # Remove circular references
    resource.controller.active_admin_config = nil
    if resource.is_a?(Resource) && resource.dsl
      resource.dsl.run_registration_block { @config = nil }
    end
  end
  @resources = ResourceCollection.new
end