python - "http method not bound to view"在 drf_yasg 中记录基于类的 View 时

Question

之前，我记录了我基于函数的 View ，如下所示:

@swagger_auto_schema(
    operation_id='ChangePassword',
    methods=['POST'],
    request_body=ChangePasswordSerializer,
    responses={
        '200': 'empty response body',
    })
def change_password(request):
    # code here

然后我们将 View 切换为基于类的，所以我只是将文档装饰器复制粘贴到 post 方法中:

class UserChangePasswordView(APIView):
    @swagger_auto_schema(
        operation_id='ChangePassword',
        methods=['POST'],
        request_body=ChangePasswordSerializer,
        responses={
            '200': 'empty response body',
        })
    def post(self, request):
        # code here 

但是，在运行这个装饰器时，drf_yasg抛出异常

File "/usr/local/lib/python3.6/site-packages/drf_yasg/utils.py", line 126, in decorator
    assert all(mth in available_methods for mth in _methods), "http method not bound to view"

这是怎么回事？此错误消息是什么意思？

Answer 1

请注意，在 source core 中的 drf-yasg提到了

method and methods are mutually exclusive and must only be present when decorating a view method that more than one HTTP request method.

因此，如果您的 UserChangePasswordView.post() 处理了多个方法，则 methods 将有效。