当包含资源 DRF returns 我的软删除记录

Question

我的 DRF API 支持在 authors get 请求中包含作者的书籍。

我们的 API 有一个软删除系统，其中 Book(2) 被标记为已删除。

但是当我执行 Book(2) 下面的请求时，仍然包含在响应中。

我希望在此请求的响应中只有 Book(1)。

GET http:///localhost/authors/2?include=books

API returns 对我来说：

{
    "data": {
        "type": "Author",
        "id": "2",
        "attributes": {...},
        "relationships": {
            "books": {
                "meta": {
                    "count": 2
                },
                "data": [
                    {
                        "type": "Book",
                        "id": "1"
                    },
                    {
                        "type": "Book",
                        "id": "2"
                    }
                ]
            }
        }
    },
    "included": [
        {
            "type": "Book",
            "id": "1",
            "attributes": {...}
        },
        {
            "type": "Book",
            "id": "2",
            "attributes": {...}
        }
    ]
}

我有一个 BaseModel 来处理覆盖 delete 方法的软删除：

class BaseModel(Model):
    archive = BoolYesNoField(db_column="archive", default=False, null=False)
    created = DateTimeField(db_column="created", auto_now_add=True, null=False)
    updated = DateTimeField(db_column="updated", auto_now=True, null=False)

    objects = BaseManager()
    all_objects = BaseManager(alive_only=False)

    def delete(self):
        self.archive = True
        self.save()
        relate_obj_delete(self)

    def hard_delete(self):
        super(Model, self).delete()

    def undelete(self):
        self.archive = False
        self.save()

经理

class BaseManager(Manager):
    def __init__(self, *args, **kwargs):
        self.alive_only = kwargs.pop("alive_only", True)
        super(BaseManager, self).__init__(*args, **kwargs)

    def get_queryset(self):
        if self.alive_only:
            return BaseQuerySet(self.model).filter(archive=False)
        return BaseQuerySet(self.model)

    def hard_delete(self):
        return self.get_queryset().hard_delete()

AuthorViewSet

class AuthorViewSet(BaseViewSet):
    queryset = Author.objects.all()
    serializer_class = AuthorSerializer
    filterset_class = AuthorFilterSet

序列化器

class AuthorSerializer(BaseSerializer):
    books = ResourceRelatedField(many=True, read_only=True)
    included_serializers = {
        "books": BookSerializer,
    }

    class Meta(BaseSerializer.Meta):
        model = Author

如果有人能指出我正确的方向，我会很有帮助。可能有一个函数我需要在某处重写，但我似乎找不到它。

Answer 1

您的问题出在您的序列化程序中。默认情况下，Django 将使用 Model._base_manager to fetch related objects and not your custom manager. You need to specify in your nested ResourceRelatedField 字段你想使用哪个管理器

class AuthorSerializer(BaseSerializer):
    books = ResourceRelatedField(
        queryset=Book.objects,
        many=True,
        read_only=True
    )
    ...

当包含资源 DRF returns 我的软删除记录

When including resources DRF returns my soft deleted records

django

django-rest-framework

json-api