def cleaner(self):
     private_nets = [
         '0.%', '127.%', '192.168.%', '10.%', '172.16.%', '172.17.%',
         '172.18.%', '172.19.%', '172.20.%', '172.21.%', '172.22.%',
         '172.23.%', '172.24.%', '172.25.%', '172.26.%', '172.27.%',
         '172.28.%', '172.29.%', '172.30.%', '172.31.%'
     ]
     logger.info('Dump cleaner run')
     # history = History.select(History.id).order_by(History.id.desc()).limit(self.cfg.DiffCount())
     # Item.delete().where(~(Item.purge << history)).execute()
     history_clear = History.select(History.id).order_by(
         History.id.desc()).offset(self.cfg.DiffCount())
     item_del = Item.delete().where(Item.purge << history_clear).execute()
     logger.info('Item deleted: %d', item_del)
     ip_del = IP.delete().where(IP.purge << history_clear).execute()
     logger.info('IP deleted: %d', ip_del)
     domain_del = Domain.delete().where(
         Domain.purge << history_clear).execute()
     logger.info('Domain deleted: %d', domain_del)
     url_del = URL.delete().where(URL.purge << history_clear).execute()
     logger.info('URL deleted: %d', url_del)
     history_rm = History.select(History.id).order_by(
         History.id.desc()).offset(self.cfg.HistoryCount())
     hist_del = History.delete().where(History.id << history_rm).execute()
     logger.info('History deleted: %d', hist_del)
     for net in private_nets:
         ip_count = IP.delete().where(IP.ip % net).execute()
         if ip_count:
             logger.info('IP error LIKE %s, count %d', net, ip_count)