Cool to use for the Django Framework.
Project description
Django 框架快速使用扩展库
本项目在以下代码托管网站同步更新:
安装与升级
目前 Django Cool 支持的 Python 环境有 3.6, 3.7, 3.8, 3.9, 3.10 支持 Django 版本 2.2, 3.0, 3.1, 3.2, 4.0
为了简化安装过程,推荐使用 pip 进行安装
pip install django-cool
升级 Django Cool 到新版本:
pip install -U django-cool
如果需要安装 GitHub 上的最新代码:
pip install https://github.com/007gzs/django-cool/archive/master.zip
如果需要展示html接口文档需要安装markdown依赖:
pip install markdown
如果使用websocket功能需要安装channels依赖:
pip install channels>=2.4
开始使用
settings.py 配置
在 INSTALLED_APPS 中添加 cool
INSTALLED_APPS = ( ... 'cool', )
在 settings.py 中设置 DJANGO_COOL
DJANGO_COOL = { 'API_ERROR_CODES': ( ('ERR_DEMO_NOLOGIN', (10001, '请先登陆')), ('ERR_DEMO_NOTFOUND', (10002, '用户名密码错误')), ('ERR_DEMO_PERMISSION', (10003, '权限错误')), ('ERR_DEMO_DUPLICATE_USERNAME', (10011, '用户名已存在')), ('ERR_DEMO_DUPLICATE_MOBILE', (10012, '手机号已存在')), ) }
models扩展
自定义 Model 继承 BaseModel 可使用扩展功能:
- 支持字段变更监控记录
- 通过 save_changed() 保存已修改字段
- 主键唯一键缓存
- 缓存获取: get_obj_by_pk_from_cache() get_obj_by_unique_key_from_cache()
- 删除缓存: flush_cache_by_pk() flush_cache_by_unique_key() flush_cache()
- 搜索字段自动生成
- get_search_fields() 自动生成搜索字段,默认返回所有设置索引的char和int类型字段
后台管理扩展
BaseModelAdmin 提供扩展功能:
- 默认列出所有基础字段
- 增加相关项列,通过外键快速跳转
- 增、删、改权限统一控制
- 提交保存时,检查数据是否被修改
使用 admin_register() 装饰器可以快速将 Model 注册到后台管理
@admin_register class Module(BaseModel): name = models.CharField('module name', max_length=255) code = models.CharField('module code', max_length=100, unique=True) @admin_register( list_display=['module', 'name'], list_filter=['module', ], change_view_readonly_fields=['code', ], list_editable=['name', 'module'] ) class Permission(BaseModel): name = models.CharField('permission name', max_length=255) code = models.CharField('permission code', max_length=100) module = model.ForeignKey( Module, verbose_name='module', to_field='code', db_column='module_code', on_delete=models.PROTECT )
api接口扩展
- CoolBFFAPIView 可方便创建 application/x-www-form-urlencoded / multipart/form-data 方式的接口。
- Meta 类中配置参数列表 param_fields 后可以自动生成接口文档,自动做参数验证
- 使用 ViewSite 快速注册接口生成 urlpatterns
使用样例:
views.py:
from cool.views import ViewSite, CoolBFFAPIView, ErrorCode, CoolAPIException from django.contrib.auth import authenticate, login from django.db import IntegrityError from django.db.models import Q from rest_framework import fields from . import serializer, constants site = ViewSite(name='demo', app_name='demo') @site class UserRegister(CoolBFFAPIView): name = '用户注册' response_info_serializer_class = serializer.UserSerializer def get_context(self, request, *args, **kwargs): user = models.User.objects.filter( Q(username=request.params.username) | Q(mobile=request.params.mobile) ).first() if user is not None: if user.username == request.params.username: raise CoolAPIException(ErrorCode.ERR_DEMO_DUPLICATE_USERNAME) elif user.mobile == request.params.mobile: raise CoolAPIException(ErrorCode.ERR_DEMO_DUPLICATE_MOBILE) user = models.User() user.username = request.params.username user.mobile = request.params.mobile user.nickname = request.params.nickname user.name = request.params.name user.avatar = request.params.avatar user.gender = request.params.gender user.set_password(request.params.password) try: user.save(force_insert=True) except IntegrityError as exc: if exc.args[0] == 1062: if exc.args[1].find('username') >= 0: exc = CoolAPIException(ErrorCode.ERR_DEMO_DUPLICATE_USERNAME) elif exc.args[1].find('mobile') >= 0: exc = CoolAPIException(ErrorCode.ERR_DEMO_DUPLICATE_MOBILE) raise exc user = authenticate(self, base_username=request.params.username, base_password=request.params.password) if user is None: raise CoolAPIException(ErrorCode.ERR_DEMO_NOTFOUND) login(request, user) return serializer.UserSerializer(user, request=request).data class Meta: param_fields = ( ('username', fields.CharField(label='登陆名', max_length=64, help_text='字段说明,会显示在接口文档中')), ('password', fields.CharField(label='密码'), ('gender', fields.ChoiceField(label='性别', choices=constants.Gender.get_choices_list())), ('mobile', fields.RegexField(r'1\d{10}', label='手机号')), ('nickname', fields.CharField(label='昵称', max_length=255)), ('name', fields.CharField(label='姓名', default='', max_length=255)), ('avatar', fields.ImageField(label='头像', default=None)), ) urls = site.urls urlpatterns = site.urlpatterns
urls.py:
from django.contrib import admin from django.urls import path, include from cool.views import get_api_doc_html api_patterns = [ path('demo/', include('example.apps.demo.views')), ] urlpatterns = [ path('cool/', include('cool.urls')), path('admin/', admin.site.urls), path('api/', include(api_patterns)), path('api_doc.html', get_api_doc_html) ]
示例项目
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