Django REST框架：在删除之前验证

问题描述：

我想在对象被删除之前运行一个验证，以防在某些情况下被删除并作为验证错误返回。我怎么做？我目前看起来不是正确的：

I want to run a validation before an object is deleted, to prevent deletion in certain cases and return as a validation error. How do I do that? What I have currently doesn't seem right:

class CallDetail(generics.RetrieveUpdateDestroyAPIView):
    queryset = XCall.objects.all()
    serializer_class = CallSerializer
    ...

    def pre_delete(self, obj):
        if obj.survey:
            raise serializers.ValidationError("Too late to delete")

答

提出一个 ValidationError ，我只会提出一个 ParseError 或适合错误描述的其他自定义错误：

Rather than raising a ValidationError, I will just raise a ParseError or another custom error that fits the error description:

from rest_framework import exceptions
def pre_delete(self, obj):
        if obj.survey:
            raise exceptions.ParseError("Too late to delete")

Django REST框架：在删除之前验证

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