Django-Rest-Fram中的关系条件检查

Question

嗨，我正在尝试验证Django rest framework json中至少需要一个字段。在

这是我的序列化程序类

class WorkloadPutSerializer(serializers.Serializer):

    vdi = VdiSerializer(required = False)
    db = DbSerializer(required = False)
    vm= VmSerializer(required = False)
    pk = serializers.IntegerField(read_only=True)

我想强制用户输入vdi或{}，或者两者都输入。在

有什么方法可以在django rest框架中验证这个条件吗？请帮助我在django rest框架文档中找不到。在

Answer 1

为什么不重写序列化程序上的validate()？见Object-level validation

class WorkloadPutSerializer(serializers.Serializer):

    vdi = VdiSerializer(required = False)
    db = DbSerializer(required = False)
    pk = serializers.IntegerField(read_only=True)

    def validate(self, data):
        """
        Check if at least one of data['vdi'] or data['vm']
        exists and then return the data. Otherwise raise 
        ValidationError. 
        """
        if data['vdi'] or data['vm']:
            return data
        else:
            raise serializers.ValidationError("No No No")