当你看此文的时候，默认你才刚刚创建django项目并且没有修改过任何一处的代码（包括settings里的数据库配置）。
默认认为你的settings中的数据库配置为默认的sqllit3，（django自带该数据库，请放心使用）

创建app

python3 manage.py startapp user
首先创建一个新的app
之后到settings里找到INSTALL_APPS中添加”user”

编写User模型

  1. from django.contrib.auth.models import AbstractBaseUser, PermissionsMixin, BaseUserManager
  2. from django.db import models
  5. class UserManager(BaseUserManager):
  6.     def _create_user(self, username, password, email, **kwargs):
  7.         if not username:
  8.             raise ValueError("请传入用户名！")
  9.         if not password:
  10.             raise ValueError("请传入密码！")
  11.         user = self.model(username=username, email=email, **kwargs)
  12.         user.set_password(password)
  13.         user.save()
  14.         return user
  16.     def _add_phone(self, username, password, phone):
  17.         if not username:
  18.             raise ValueError('请输入用户名!')
  19.         if not password:
  20.             raise ValueError("请传入密码！")
  21.         user = self.model(username=username)
  22.         if not user.check_password(password):
  23.             raise ValueError('密码不正确!')
  24.         user.phone = phone
  25.         user.save()
  26.         return user
  28.     def create_user(self, username, password, email, **kwargs):
  29.         kwargs['is_superuser'] = False
  30.         return self._create_user(username, password, email, **kwargs)
  32.     def create_superuser(self, username, password, email, **kwargs):
  33.         kwargs['is_superuser'] = True
  34.         kwargs['is_staff'] = True
  35.         return self._create_user(username, password, email, **kwargs)
  37.     def add_phone(self, username, password, phone):
  38.         return self._add_phone(username, password, phone)
  41. class User(AbstractBaseUser, PermissionsMixin):  # 继承AbstractBaseUser，PermissionsMixin
  42.     GENDER_TYPE = (
  43.         ("1", "男"),
  44.         ("2", "女")
  45.     )
  46.     username = models.CharField(max_length=15, verbose_name="用户名", unique=True)
  47.     nickname = models.CharField(max_length=13, verbose_name="昵称", null=True, blank=True)
  48.     age = models.IntegerField(verbose_name="年龄", null=True, blank=True)
  49.     gender = models.CharField(max_length=2, choices=GENDER_TYPE, verbose_name="性别", null=True, blank=True)
  50.     phone = models.CharField(max_length=11, null=True, blank=True, verbose_name="手机号码", unique=True)
  51.     email = models.EmailField(verbose_name="邮箱")
  52.     picture = models.ImageField(upload_to="Store/user_picture", verbose_name="用户头像", null=True, blank=True)
  53.     home_address = models.CharField(max_length=100, null=True, blank=True, verbose_name="地址")
  54.     card_id = models.CharField(max_length=30, verbose_name="身份证", null=True, blank=True)
  55.     is_active = models.BooleanField(default=True, verbose_name="激活状态")
  56.     is_staff = models.BooleanField(default=True, verbose_name="是否是员工")
  57.     date_joined = models.DateTimeField(auto_now_add=True)
  59.     USERNAME_FIELD = 'username'
  60.     REQUIRED_FIELDS = []
  61.     EMAIL_FIELD = 'email'
  63.     objects = UserManager()
  65.     def get_full_name(self):
  66.         return self.username
  68.     def get_short_name(self):
  69.         return self.username
  71.     class Meta:
  72.         verbose_name = "用户"
  73.         verbose_name_plural = verbose_name

编写完user模型后 先去settings.py中新增一行 AUTH_USER_MODEL = “user.User” # app_name.model_name
python3 manage.py makemigrations user
python3 manage.py migrate
此时数据库中会生成一张名为user_user表 此时就代表我们成功重写了django自带的user表