Django 路由（SimpleRouter， DefaultRouter，ExtendedDefaultRouter）

django 路由

1.SimpleRouter

from rest_framework.routers import SimpleRouter

router = SimpleRouter()

router.register(r'users', UserViewSet)

register有两个强制参数 
prefix  此组路由的url前缀
viewset 处理请求的viewset类
还有一个可选参数
base_name 如果视图集不包括queryset属性，那么在注册视图集时必须设置base_name也就是viewset 没有自定义model 或 get_queryset方法时，必须填写此属性

生成的路由
URL pattern: ^users/$ Name: 'user-list'
URL pattern: ^users/{pk}/$ Name: 'user-detail'


 在路由中的使用
方法一：
router = routers.SimpleRouter()
router.register(r'users', UserViewSet)
router.register(r'accounts', AccountViewSet)

urlpatterns = [
    url(r'^forgot-password/$', ForgotPasswordFormView.as_view()),
]

urlpatterns += router.urls

方法二：
urlpatterns = [
    url(r'^forgot-password/$', ForgotPasswordFormView.as_view()),
    url(r'^', include(router.urls)),
]

urlpatterns = [
    url(r'^forgot-password/$', ForgotPasswordFormView.as_view()),
    url(r'^api/', include(router.urls, namespace='api')),
]

额外连接和操作 

用@detail_route或@list_route装饰的视图集上的任何方法也将被路由

class TestViewSet(viewsets.ViewSet):

    permission_classes = []

    from rest_framework.decorators import detail_route, list_route

    @detail_route(methods=['GET'])
    def url_test(self, request, pk=None, *args, **kwargs):
        return Response(pk)

生成的路由 ^/test/(?P<pk>[^/.]+)/url_test/$

如果要自定义路由名，使用url_path参数定义
@detail_route(methods=['get'], url_path='zb')


# 自定义组名和正则
class MyModelViewSet(mixins.RetrieveModelMixin, viewsets.GenericViewSet):
    lookup_field = 'my_model_id'
    lookup_value_regex = '[0-9a-f]{32}'

1.ExtendedDefaultRouter

from rest_framework_extensions.routers import ExtendedDefaultRouter

router.register(r'/we_chat', WeChatPayViewSet, 'we_chat')

class WeChatPayViewSet(viewsets.ViewSet):
    permission_classes = (IsAuthenticated,)

    @action(methods=["POST"], is_for_list=True)
    def app_pay(self, request, *args, **kwargs):
    
‘’‘
当viewset使用@action时
class TestViewSet(viewsets.ViewSet):

    model = EStoreOrder

    @action(methods=['GET'])
    def test(self, request, *args, **kwargs):

        return Response('ok')
生成的路由为
^api/ ^estore ^/test/(?P<pk>[^/.]+)/test/$ [name='estoreorder-test']
^api/ ^estore ^/test/(?P<pk>[^/.]+)/test/.(?P<format>[a-z0-9]+)$ [name='estoreorder-test']

当使用
@action(methods=['GET'], is_for_list=True)
生成的路由为
^api/ ^estore ^/test/test/$ [name='estoreorder-test-list']
^api/ ^estore ^/test/test/.(?P<format>[a-z0-9]+)$ [name='estoreorder-test-list']
’‘’