```ruby
module RailsAdmin
  module Extensions
    module PaperTrail
      class VersionProxy
        def message
           @message = @version.event
         end
        def version_id
          @version.id
        end
      end
      class AuditingAdapter
        COLUMN_MAPPING[:rollback] = :id
      end
    end
  end
end
```

Fix issue with frozen constants in RailsAdmin at v1.0.0
user
```ruby
module RailsAdmin
  module Extensions
    module PaperTrail
      class VersionProxy
        def message
           @message = @version.event
         end
        def version_id
          @version.id
        end
      end
    end
  end
end
```
assistant