# -*- coding: utf-8 -*-

from photo.models import UUIDInfo

import shortuuid


def curtailUUID(length=10):
    flag = True
    while flag:
        uuid = shortuuid.uuid()[-length:]
        try:
            UUIDInfo.objects.get(uuid=uuid)
        except UUIDInfo.DoesNotExist:
            flag = False
    return uuid