Question

我有一个模型，如下：

class BModel(models.Model):
    name = models.CharField(max_length=11)
    status = models.CharField(default="is_active")  # if delete:  deleted
    a = models.ForeignKey(AModel)

    def delete(self, using=None, keep_parents=False):
        pass  # there I want to set the BModel's status to `deleted`

串行：

class BModelSerializer(ModelSerializer):
    class Meta:
        model = BModel
        fields = "__all__"

其观点如下：

class BModelListAPIView(ListAPIView):
    serializer_class = BModelSerializer
    permission_classes = []
    queryset = BModel.objects.all()

class BModelDestroyAPIView(DestroyAPIView):
    serializer_class = BModelSerializer
    permission_classes = []
    queryset = BModel.objects.all()

我的要求是当使用Django-Rest-Framework删除我的BModel时，我想将BModel的状态字段设置为deleted，而不是真正删除实例。如何访问它？

当我尝试将删除方法写入我的模型时，会出现默认的删除方法：

def delete(self, using=None, keep_parents=False):

我对此有一些疑问：这是针对BModel的实例吗？是否应该通过delete方法来访问我的要求？

Answer 1

DestroyAPIView有perform_destroy方法。您可以覆盖它并添加删除逻辑。例如：

class BModelDestroyAPIView(DestroyAPIView):
    serializer_class = BModelSerializer
    permission_classes = []
    queryset = BModel.objects.all()

    def perform_destroy(self, instance):
        instance.delete_flag = True
        instance.save()

delete的{{1}}方法将覆盖默认的删除方法。哪个也会影响Django Admin。您还可以向该模型的Manager添加自定义删除方法。 Refer

如何设置DestroyAPIView方法不是真正删除我的实例？

1 个答案: