一、视图集和路由器
REST框架包括一个用于处理ViewSets
的抽象,它允许开发人员集中精力对API的状态和交互进行建模,并根据常规约定自动处理URL构造。
ViewSet类与View类几乎相同,不同之处在于它们提供诸如read
或update
之类的操作,而不是get或put等方法处理程序。
最后一个ViewSet类只绑定到一组方法处理程序,当它被实例化成一组视图的时候,通常通过使用一个Router类
来处理自己定义URL conf的复杂性。
1. 导入模块
from rest_framework import viewsets
2. 重构视图
class BookViewSet(viewsets.ModelViewSet):
queryset = Book.objects.all()
serializer_class = serializers.BookSerializer
permission_classes = (permissions.IsAuthenticatedOrReadOnly)
![img_702d7b320057bc8dba6416ad82134307.png](https://yqfile.alicdn.com/img_702d7b320057bc8dba6416ad82134307.png)
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3. 配置路由
book_list = views.BookViewSet.as_view(
{
'get': 'list',
'post': 'create'
}
)
book_detail = views.BookViewSet.as_view(
{
'get': 'retrieve',
'put': 'update',
'patch': 'partial_update',
'delete': 'destory'
}
)
urlpatterns = [
...
# 使用viewset
url(r'^books/$',book_list,name='book-list'),
url(r'^books/(?P<pk>[0-9])/$',book_detail,name='book-detail')
....
]
![img_b1e3d5a411b5dfe6e4f8d7f53a38d29c.png](https://yqfile.alicdn.com/img_b1e3d5a411b5dfe6e4f8d7f53a38d29c.png)
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- 刷新浏览器
![img_46fdfcb2f3eb7c59deb9f6012b325671.png](https://yqfile.alicdn.com/img_46fdfcb2f3eb7c59deb9f6012b325671.png)
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4. 改进代码(路由器)
- 导入模块
from rest_framework.routers import DefaultRouter
- 注册路由器
router = DefaultRouter()
router.register(r'^books/$',views.BookViewSet)
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- 刷新浏览器
![img_29728702bf18414a6ba6dc63e34d0dfe.png](https://yqfile.alicdn.com/img_29728702bf18414a6ba6dc63e34d0dfe.png)
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class PublisherViewSet(viewsets.ModelViewSet):
queryset = Publisher.objects.all()
serializer_class = serializers.PublisherSerializer
permission_classes = (permissions.IsAuthenticatedOrReadOnly,)
router.register(r'publishers', views.Publisher)
![img_ae98870c749c272f7a6588fb1f74f1ad.png](https://yqfile.alicdn.com/img_ae98870c749c272f7a6588fb1f74f1ad.png)
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![img_ab245061ef014aba1e4eeff894c959c9.png](https://yqfile.alicdn.com/img_ab245061ef014aba1e4eeff894c959c9.png)
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![img_4a686b270409ef02f526039ca0e1ba08.png](https://yqfile.alicdn.com/img_4a686b270409ef02f526039ca0e1ba08.png)
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