How can I customize the active admin layout?

Question

I need to customize the active admin layout, but how can I do it?

Answer 1

Maybe ActiveAdmin does provide a nicer way to do this by now? I don't know. However here would be an example for a bit cleaner patch for that situation, in my example to add the webpacker gems javascript_pack_tag to my admin area.

module MyApp
  module ActiveAdmin
    module Views
      module Pages
        module BaseExtension
          def build_active_admin_head
            super
            within @head do
              text_node(javascript_pack_tag('application'))
            end
          end
        end
      end
    end
  end
end

class ActiveAdmin::Views::Pages::Base < Arbre::HTML::Document
  prepend MyApp::ActiveAdmin::Views::Pages::BaseExtension
end