I have this function

我有这个功能

def with_items_photos(self):
    photos_subquery = Photo.objects.filter(
        object_id=OuterRef('pk'),
        content_type=ContentType.objects.get_for_model(DeliveryItem)
    ).values('pk')

    return self.annotate(
        photos=Subquery(
            photos_subquery.annotate(
                photo_ids=ArrayAgg('pk')
            ).values('photo_ids')
        )
    )

I would like to get array of photo_ids for each item but get an error

我想要获取每个项目的照片ID数组，但得到一个错误