How to store PaperTrail whodunnit model name + ID

[sedubois]

I managed to set up PaperTrail so that the whodunnit column stores User #1 when an app user does a change (configured via ApplicationController.user_for_paper_trail). I also managed to store info such as userid: console or userid: rake task_context:task_name via the PaperTrail initializer.

However I did not find how to do the same for changes done through my RailsAdmin panels as an administrator. If I use the config below, it only stores in the whodunnit column the administrator ID and not Administrator #1, which is in my view not clear enough (is it a user or an administrator ID?):

config.current_user_method(&:current_administrator)
config.audit_with :paper_trail, 'Administrator', 'PaperTrail::Version'

I tried the following too, but in that case the rails admin panel's "logout" button disappears:

config.current_user_method do
   "Administrator ##{current_administrator.id}"
end

I've defined a method user_for_paper_trail in my Admin::BaseController but it does not get called:

class Admin::BaseController < ApplicationController
  def user_for_paper_trail
    return unless defined?(current_administrator)
    "Administrator ##{current_administrator.id}"
  end
end

What is the clean way to tell RailsAdmin to let my user_for_paper_trail be called by papertrail?

[FrBenjamin]

Maybe you found a solution but in cases others are looking for one: This article describes that case: https://www.railsagency.com/blog/2016/09/06/papertrail-polymorphic-whodunnit/