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    Django rest framework如何自定义用户表

    作者:小龙狗 时间:2021-08-09 18:43

    目录
    • 说明
    • 1. Django项目和应用创建
    • 2. 自定义User表
    • 3. 序列化和路由
    • 3. DRF配置
    • 4. 同步数据库
    • 5. 测试
    • 6. 命令行注册用户

    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 AbstractUserUserProfile 类,给它添加 namemobile 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

    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。

    在这里插入图片描述

    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。

    在这里插入图片描述

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