Django orm 反向查询

#收货地址
class Address(models.Model):
   user = models.ForeignKey(User,related_name='addresss')             #关联用户id
   address = models.CharField(max_length=50)     #地址
   phone = models.CharField(max_length=15)          #电话

class User(models.Model):
    username = models.CharField(max_length=50) #用户名
    password = models.CharField(max_length=50) #密码
    email = models.EmailField()                #Email



然后在测试用例里面：

# Create your tests here.
# !/usr/bin/env python
# coding:utf-8
import os, django
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myshop.settings")  # project_name 项目名称
django.setup()
import unittest, requests
from goods.models import User,Address


class userTest(unittest.TestCase):
    def setUp(self):
        print("--------测试初始化--------")

    # 开始测试
    def test_user_info(self):
        print("--------测试开始--------")
        user = User.objects.filter(username='wj').first()
        address=user.addresss.first()
        print(user.username,address.address)

    def tearDown(self):
        # 关闭数据库连接
        print("--------测试结束--------")


if __name__ == '__main__':
    # 构造测试集
    suite = unittest.TestSuite()
    suite.addTest(userTest("test_user_info"))
    # 运行测试集合
    runner = unittest.TextTestRunner()
    runner.run(suite)