使用tastypie进行ToOneField过滤

Question

我尝试使用OneToField字段过滤ressource。

我想要通过此url给出与任务secure_key相关的最喜欢的相关：
/喜爱/ API /所有/？task__secure_key = sdsd900kljhiu987bbhU

和tastypie返回：

{"error": "The 'secure_key' field does not allow filtering."}

以下是我的文件：

喜爱/ api.py

class FavoriteRessource(ModelResource):
    task = fields.ToOneField('task.api.TaskResource', attribute='task', full=True)
    user = fields.ToOneField('foruser.api.UserRessource', attribute='user', full=True)

    class Meta:
        queryset = Favorite.objects.all()
        resource_name = 'all'
        excludes = ['id']
        allowed_methods = ['get', 'post']
        include_resource_uri = False
        authentication = BaseAuthentication()
        authorization = Authorization()
        filtering = {
            'task': ALL_WITH_RELATIONS,
        }

任务/ api.py

class TaskResource(ModelResource):
    city = fields.ToOneField(AppCityRessource, attribute='city', null=True, full=True)
    category = fields.ToOneField(TaskCategoryResource, attribute='category', null=True, full=True)
    user = fields.ToOneField(UserRessource, attribute='user', null=True, full=True)
    skill = fields.ToManyField(SkillRessource, attribute='skill', full=True)

    class Meta:
        #queryset = Task.objects.filter(active=True, admin_active=True, skill_active=True)
        queryset = Task.objects.all()
        resource_name = 'all'
        excludes = ['active', 'admin_active', 'skill_active', 'participant_history']
        allowed_methods = ['get', 'post', 'put', 'delete']
        always_return_data = True
        include_resource_uri = False
        authentication = BaseAuthentication()
        authorization = Authorization()        
        filtering = { 
            'secure_key': ALL,
        }

我的错误在哪里？