Django rest Framework：即使定义了模式名称，也不会出现NoReverseMatch错误 [英] Django rest Framework: NoReverseMatch error even when pattern name has been defined

问题描述

我已经在views.py中创建了一个api_root。

I've created a api_root in my views.py

@api_view(['GET'])
def api_root(request, format=None):
  return Response({
      'books': reverse('api_book_list'),
      'users': reverse('api_user_list')
})

我的rest_api.urls.py

Which is referred to by my rest_api.urls.py

urlpatterns = [
url(r'', api_root),
url(r'^books/$', BookList.as_view(), name='api_book_list'),
url(r'^books/(?P<pk>[0-9]+)/$', BookDetail.as_view(), name='book-detail'),


url(r'^users/$', UserList.as_view(), name='api_user_list'),
url(r'^users/(?P<pk>[0-9]+)/$', UserDetail.as_view(), name='user-detail'),
]

我的项目根urls.py使用以下url-config链接到rest_api.urls.py：

My project root urls.py links to the rest_api.urls.py with the following url-config:

url(r'^api/v1/', include('rest_api.urls', namespace='api')),

但是，当我访问/ api / v1 /页面I出现以下错误：

Yet, when I visit the /api/v1/ page I get the following error:

NoReverseMatch at /api/v1/
Reverse for 'api_book_list' not found. 'api_book_list' is not a valid view 
function or pattern name.

但是我在urls.py中定义了模式名称，有人知道为什么Django吗还是不会认出它？

But I've defined the pattern name in my urls.py, does anyone have a idea why Django still wont recognize it?

推荐答案

您已定义 namespace ='api' 到根URL，因此您需要在反转 时在URL名称前附加 api p>

You have defined namespace='api' to root url so you need append api before url name while reversing

reverse('api:api_book_list')
reverse('api:api_user_list')

阅读官方文档：反转名称空间网址

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