说明
Django 默认的用户表 auth_user 包含 id, password, last_login, is_superuser, username, last_name, email, is_staff, is_active, date_joined, first_name 字段。这些基本字段不够用时，在此基本表上拓展字段是很好选择。本文介绍在 DRF(Django Rest Framework) 上使用自定义用户表进行接口访问控制的功能设计。
1. Django项目和应用创建
先装必要的模块
pip install django
pip install djangorestframework创建项目文件夹、项目和应用
E:\SweetYaya> mkdir MyProj01
E:\SweetYaya> cd MyProj01
E:\SweetYaya\MyProj01> django-admin startproject MyProj01 .
E:\SweetYaya\MyProj01> django-admin startapp MyApp
同步数据库
E:\SweetYaya\MyProj01> python manage.py migrate
Operations to perform:
Apply all migrations: admin, auth, contenttypes, sessions
Running migrations:
Applying contenttypes.0001_initial... OK
Applying auth.0001_initial... OK
Applying admin.0001_initial... OK
Applying admin.0002_logentry_remove_auto_add... OK
...
Applying sessions.0001_initial... OK
执行如下命令后测试访问 http://127.0.0.1:8000/
E:\SweetYaya\MyProj01>python manage.py runserver
Watching for file changes with StatReloader
Performing system checks...
System check identified no issues (0 silenced).
June 07, 2021 - 21:16:57
Django version 3.2.4, using settings 'MyProj01.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CTRL-BREAK.
2. 自定义User表
打开 MyApp/models.py 文件，创建继承自 AbstractUser 的 UserProfile 类，给它添加 name 和 mobile 字段，它就是我们自定义的用户表。
from django.db import models
from django.contrib.auth.models import AbstractUser
class UserProfile(AbstractUser):
name = models.CharField(max_length=30, null=True, blank=True, verbose_name="姓名")
mobile = models.CharField(max_length=11, verbose_name="电话")
class Meta:
verbose_name = "用户"
verbose_name_plural = "用户"
def __str__(self):
return self.name
3. 序列化和路由
我们直接在 MyProj01/url.py 中进行定义序列化方法和路由配置
from django.urls import path, include
from MyApp.models import UserProfile
from rest_framework import routers, serializers, viewsets
# Serializers define the API representation.
class UserSerializer(serializers.HyperlinkedModelSerializer):
class Meta:
model = UserProfile
fields = ['url', 'username', 'name', 'mobile', 'email', 'is_staff']
# ViewSets define the view behavior.
class UserViewSet(viewsets.ModelViewSet):
queryset = UserProfile.objects.all()
serializer_class = UserSerializer
# Routers provide an easy way of automatically determining the URL conf.
router = routers.DefaultRouter()
router.register('users', UserViewSet)
# Wire up our API using automatic URL routing.
# Additionally, we include login URLs for the browsable API.
urlpatterns = [
path('', include(router.urls)),
path('api-auth/', include('rest_framework.urls', namespace='rest_framework'))
]
3. DRF配置
找到 MyProj01/settings.py ，做如下配置
加入上面创建的应用和 rest_framework
INSTALLED_APPS = [
'django.contrib.admin',
...
'rest_framework',
'MyApp',
]
添加全局认证设置
REST_FRAMEWORK = {
'DEFAULT_PERMISSION_CLASSES': [
'rest_framework.permissions.IsAuthenticated'
]
}
修改默认用户表，至此 settings.py 全部配置完成了。
AUTH_USER_MODEL = 'MyApp.UserProfile'
4. 同步数据库
执行 makemigrations 命令
E:\SweetYaya\MyProj01> python manage.py makemigrations
Migrations for 'MyApp':
MyApp\migrations\0001_initial.py
- Create model UserProfile
执行 migrate 命令出现如下错误
E:\SweetYaya\MyProj01> python manage.py migrate
Traceback (most recent call last):
File "manage.py", line 22, in <module>
main()
File "manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "D:\Program Files\Python36\lib\site-packages\django\core\management\__init__.py", line 419, in execute_from_command_line
utility.execute()
File "D:\Program Files\Python36\lib\site-packages\django\core\management\__init__.py", line 413, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "D:\Program Files\Python36\lib\site-packages\django\core\management\base.py", line 354, in run_from_argv
self.execute(*args, **cmd_options)
File "D:\Program Files\Python36\lib\site-packages\django\core\management\base.py", line 398, in execute
output = self.handle(*args, **options)
File "D:\Program Files\Python36\lib\site-packages\django\core\management\base.py", line 89, in wrapped
res = handle_func(*args, **kwargs)
File "D:\Program Files\Python36\lib\site-packages\django\core\management\commands\migrate.py", line 95, in handle
executor.loader.check_consistent_history(connection)
File "D:\Program Files\Python36\lib\site-packages\django\db\migrations\loader.py", line 310, in check_consistent_history
connection.alias,
django.db.migrations.exceptions.InconsistentMigrationHistory: Migration admin.0001_initial is applied before its dependency MyApp.0001_initial on database 'default'.
解决办法
先 makemigrations打开 settings.py ，注释掉 INSTALL_APPS 中的
'django.contrib.admin',打开 urls.py ，注释掉 urlpatterns 中的 admin，再 migrate 就不报错了。最后注意把注释内容恢复回来就好了。
E:\SweetYaya\MyProj01> python manage.py migrate
Operations to perform:
Apply all migrations: MyApp, admin, auth, contenttypes, sessions
Running migrations:
Applying contenttypes.0001_initial... OK
Applying contenttypes.0002_remove_content_type_name... OK
...
Applying admin.0003_logentry_add_action_flag_choices... OK
Applying sessions.0001_initial... OK
5. 测试
执行命令
E:\SweetYaya\MyProj01>python manage.py runserver访问 http://127.0.0.1:8000/users/ 出现结果如下，此时表明配置成功，但是尚未进行用户登录无权访问。
6. 命令行注册用户
进入 Python Shell
E:\SweetYaya\MyProj01> python manage.py shell
Python 3.6.6 (v3.6.6:4cf1f54eb7, Jun 27 2018, 03:37:03) [MSC v.1900 64 bit (AMD64)]
Type 'copyright', 'credits' or 'license' for more information
IPython 6.5.0 -- An enhanced Interactive Python. Type '?' for help.
键入如下代码
In [1]: from MyApp.models import UserProfile
In [2]: from django.contrib.auth.hashers import make_password
In [3]: ist = UserProfile(username='guest01',password=make_password('123456'))
In [4]: ist.save()
In [5]: ist = UserProfile(username='guest02',password=make_password('123456'))
In [6]: ist.save()
然后在数据库中查看 MyApp_userprofile 表发现多了两条记录，添加成功，继续访问 http://127.0.0.1:8000/users/ 地址，使用用户密码登录可见如下。测试完成。
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