django扩展用户一对一关联

因为django自带的用户认证系统是通过username、password， 已经无法满足现在大多数使用手机号和密码验证的需求，

所以：

A 需要扩展用户模型，添加telephone

B自定义验证方法，通过telephone获取用户，并验证密码

1、app01/models.py里面创建模型UserExtension, 一对一关联User

from django.db import models
from django.contrib.auth.models import  User
from django.dispatch import receiver
from django.db.models.signals import  post_save




class UserExtension(models.Model):
    user = models.OneToOneField( User, related_name="extension", on_delete= models.CASCADE )
    telephone = models.CharField(max_length=11)
    school  = models.CharField(max_length=100)



'''
sender  发送者
instance 代表调用的对象
created 是否是新创建
　　　　如果是新建User对象， 则User扩展对象UserExtension里面创建与User的关联
　　　　如果不是新建， User保存一次， 则User扩展对象UserExtension也自动保存
'''

@receiver(post_save, sender = User)
def create_user_extension( sender, instance, created, **kwargs ):
    if created:
        UserExtension.objects.create( user = instance)
    else:
        instance.extension.save()

2、执行makemigrations和migrate, 同步映射数据库

2、app01/views.py视图调用扩展模型，创建User和UserExtension对象

from django.shortcuts import render, HttpResponse
from django.db import  connection
from django.contrib.auth.models import  User
def test(request):
    user = User.objects.create_user( username="zhiliao3", password="333333", email="zhiliao3@qq.com" )
    user.extension.telephone = "18888688888"
    user.save()
return  HttpResponse("success")

通过url： http://127.0.0.1:8080/test访问后，数据库就创建User和UserExtension相关的数据：

 

3、若需要使用 telephone和password方式验证用户，需要自定义验证方法

from django.shortcuts import render, HttpResponse
from django.db import  connection
from django.contrib.auth.models import  User


def my_authenticate(telephone, password):
    user = User.objects.filter( extension__telephone= telephone ).first()
    if user:
        is_correct =  user.check_password( password)
        if is_correct:
            return user
        else:
            return None
    else:
        return None


def test(request):
    # user = User.objects.create_user( username="zhiliao3", password="333333", email="zhiliao3@qq.com" )
    # user.extension.telephone = "18888688888"
    # user.save()

    telephone = request.GET.get("telephone")
    password = request.GET.get("password")
    user = my_authenticate( telephone, password)
    if user:
        print("验证成功：%s" % user.username)
    else:
        print("验证失败！")
    return  HttpResponse("success")

通过URL访问： http://127.0.0.1:8080/test/?telephone=18888688888&password=333333

打印结果如下：

erforming system checks...

System check identified no issues (0 silenced).
November 05, 2019 - 16:11:31
Django version 2.2.2, using settings 'untitled1019.settings'
Starting development server at http://127.0.0.1:8080/
Quit the server with CTRL-BREAK.
验证成功：zhiliao3