用相关p进行味觉筛选

Question

我想通过相关字段pk过滤资源。在

例如，我有乡村pk，我想从那个国家得到所有的城市。我怎么能那样做？在

class CityResource(ModelResource):
    class Meta:
        queryset = City.objects.all()
        resource_name = 'city'
        fields = ['name','id']

        filtering = {
           #Something here
        }

class CountryResource(ModelResource):
    class Meta:
        queryset = Country.objects.all()
        resource_name = 'country'
        fields = ['name','code2','id']

以及一个URL示例：

^{pr2}$

有什么想法吗？在

Answer 1

from tastypie.fields import ForeignKey
from tastypie.resources import ALL_WITH_RELATIONS

class CityResource(ModelResource):
    country = ForeignKey("path.to.api.CountryResource", "country")

    class Meta:
        queryset = City.objects.all()
        resource_name = 'city'
        fields = ['name','id']

        filtering = {
           "country": ALL_WITH_RELATIONS
        }

class CountryResource(ModelResource):
    class Meta:
        queryset = Country.objects.all()
        resource_name = 'country'
        fields = ['name','code2','id']
        filtering = { "id": ALL }