Make originator of change tracked with paper_trail available in Sidekiq background workers

sidekiq_paper_trail_middleware.rb

module Acme
  module Sidekiq
    module PaperTrailMiddleware
      class Client
        # @param [Object]
        # @param [Hash] job
        def call(_, job, *)
          job['whodunnit'] = ::PaperTrail.whodunnit
          yield
        end
      end

      class Server
        # @param [Object]
        # @param [Hash] job
        def call(_, job, *)
          unless ::PaperTrail.whodunnit.present?
            ::PaperTrail.whodunnit = job['whodunnit']
          end
          yield
        end
      end
    end
  end
end