过滤错误：查询不允许超过一级深度 [英] Filtering Error: Lookups are not allowed more than one level deep

问题描述

从四周看别人在做什么，这应该是有效的，但我错了一句话：

From looking around at what others are doing this should be working, but I an error saying:

查找不允许超过照片字段中的一级。

Lookups are not allowed more than one level deep on the 'photos' field.

这是我有的代码。我已经尝试了一些轻微的变化，我如何设置，但我没有运气。

Here is the code that I have. I've tried a few slight variations with how I set things up but I've had no luck.

class CollectionResource(ModelResource):
    photos = fields.ToManyField('photoproject.apps.kit.api.PhotoResource', 'photo_set', null=True, full=True)

    class Meta:
        authorization = Authorization()
        resource_name = 'collection'

        queryset = Collection.objects.all()

        filtering = {
            'name': ['exact'],
            'photos': ALL
        }

class PhotoResource(ModelResource):
    collection = fields.ToOneField(CollectionResource, 'collection')

    class Meta:
        authorization = Authorization()
        resource_name = 'photo'

        queryset = Photo.objects.all()

        filtering = {
            'id': ALL_WITH_RELATIONS
        }

而且我试图查询是：

/api/v1/collection/?photos__id=2

推荐答案

根据 StackOverflow answer ，尝试将ALL更改为ALL_WITH_RELATIONS照片：

Per this StackOverflow answer, try changing ALL to ALL_WITH_RELATIONS for "photos":

class CollectionResource(ModelResource):
    photos = fields.ToManyField('photoproject.apps.kit.api.PhotoResource', 'photo_set', null=True, full=True)

    class Meta:
        authorization = Authorization()
        resource_name = 'collection'

        queryset = Collection.objects.all()

        filtering = {
            'name': ['exact'],
            'photos': ALL_WITH_RELATIONS
        }

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