我正在尝试为我的 10 位 Django 模型生成唯一的 HASH 值我已经尝试过这些方法，但我收到了这个错误
return Database.Cursor.execute(self, query, params)
django.db.utils.IntegrityError: column hash_3 is not unique
这是我尝试过的：
import os
import time
import hashlib
from os import path
from binascii import hexlify
from django.db import models
from django.contrib import admin
from django.core.files.storage import FileSystemStorage
#------------------------------------------------------------------------------
def _createHash():
"""This function generate 10 character long hash"""
hash = hashlib.sha1()
hash.update(str(time.time()))
return hash.hexdigest()[:-10]
class tags(models.Model):
""" This is the tag model """
seo_url1 = models.URLField()
seo_url2 = models.URLField()
seo_url3 = models.URLField()
tagDescription = models.TextField() # Tag Description
tag = models.CharField(max_length=200) # Tag name
tagSlug = models.CharField(max_length=400) # Extra info can be added to the existing tag using this field
updatedAt = models.DateTimeField(auto_now=True) # Time at which tag is updated
createdAt = models.DateTimeField(auto_now_add=True) # Time at which tag is created
hash_1 = models.CharField(max_length=10,default=_createHash(),unique=True)
hash_2 = models.CharField(max_length=10,default=_createHash(),unique=True)
hash_3 = models.CharField(max_length=10,default=_createHash(),unique=True)
我也试过这个方法：
def _createHash():
"""This function generate 10 character long hash"""
return hexlify(os.urandom(5))
我有一个脚本，每次我运行我的脚本时都会将数据插入到这个模型中，我得到上面提到的错误..有没有其他方法可以做到这一点..我想将唯一的哈希值存储到列hash_1,hash_2,hash_3中。