PERMANENT_TTL = 0 def migrate(migrator, database, fake=False, **kwargs): IPListModel = migrator.orm["iplist"] IPListModel.update(expiration=PERMANENT_TTL).where( (IPListModel.listname == "BLACK") & (IPListModel.expiration != PERMANENT_TTL) ).execute() def rollback(migrator, database, fake=False, **kwargs): pass