def merge(user, light_user):
        entries = LightModerator.objects.filter(light_user=light_user)
        for entry in entries:
            with log.fields(username=user.username,
                            light_user=light_user):
                log.info('Transforming light moderator into the permanent')
                Moderator.objects.create(
                    changelog=entry.changelog,
                    user=user,
                    from_light_user=light_user)
        entries.delete()