old_contents: from tastypie.serializers import Serializer
  from indicator.models import *
  from api.v3.resources.helper_resources import *
  
  
  
  class RegionResource(ModelResource):
  
      class Meta:
          queryset = Region.objects.all()
          resource_name = 'regions'
          include_resource_uri = False
          serializer = Serializer(formats=['xml', 'json'])
          allowed_methods = ['get']
  
  class CityResource(ModelResource):
  
      class Meta:
          queryset = City.objects.all()
          resource_name = 'cities'
          include_resource_uri = False
          serializer = Serializer(formats=['xml', 'json'])
          filtering = {
              'id': ['exact'],
          }
          allowed_methods = ['get']
  
  class CountryResource(ModelResource):
      capital_city = fields.OneToOneField(CityResource, 'capital_city', full=True, null=True)
      unesco_region = fields.ForeignKey(RegionResource, 'unesco_region', full=True, null=True)
      cities = fields.ToManyField(CityResource, 'city_set', full=True, null=True, use_in="detail")
  
  
      class Meta:
          queryset = Country.objects.all()
          resource_name = 'countries'
          # excludes = ['polygon']
          include_resource_uri = False
          serializer = Serializer(formats=['xml', 'json'])
          filtering = {
              'code': ['exact'],
          }
          allowed_methods = ['get']
  
      def dehydrate(self, bundle):
          bundle.data['region_id'] = bundle.obj.region_id
          return bundle
  
  
  
  
  class SectorResource(ModelResource):
  
      class Meta:
          queryset = Sector.objects.all()
          resource_name = 'sectors'
          include_resource_uri = False
          serializer = Serializer(formats=['xml', 'json'])
          allowed_methods = ['get']
  
  class OrganisationResource(ModelResource):
      type = fields.OneToOneField(OrganisationTypeResource, 'type', full=True, null=True)
  
      class Meta:
          queryset = Organisation.objects.all()
          resource_name = 'organisations'
          serializer = Serializer(formats=['xml', 'json'])
          filtering = {
              # example to allow field specific filtering.
              'name': ALL,
              'abbreviation': ALL
          }
  
new_contents: from tastypie.serializers import Serializer
  from indicator.models import *
  from api.v3.resources.helper_resources import *
  
  
  
  class RegionResource(ModelResource):
  
      class Meta:
          queryset = Region.objects.all()
          resource_name = 'regions'
          include_resource_uri = False
          serializer = Serializer(formats=['xml', 'json'])
          allowed_methods = ['get']
  
  class CityResource(ModelResource):
  
      class Meta:
          queryset = City.objects.all()
          resource_name = 'cities'
          include_resource_uri = False
          serializer = Serializer(formats=['xml', 'json'])
          filtering = {
              'id': ['exact'],
          }
          allowed_methods = ['get']
  
      def dehydrate(self, bundle):
          bundle.data['country_id'] = bundle.obj.country_id
          return bundle
  
  
  class CountryResource(ModelResource):
      capital_city = fields.OneToOneField(CityResource, 'capital_city', full=True, null=True)
      unesco_region = fields.ForeignKey(RegionResource, 'unesco_region', full=True, null=True)
      cities = fields.ToManyField(CityResource, 'city_set', full=True, null=True, use_in="detail")
  
  
      class Meta:
          queryset = Country.objects.all()
          resource_name = 'countries'
          # excludes = ['polygon']
          include_resource_uri = False
          serializer = Serializer(formats=['xml', 'json'])
          filtering = {
              'code': ['exact'],
          }
          allowed_methods = ['get']
  
      def dehydrate(self, bundle):
          bundle.data['region_id'] = bundle.obj.region_id
          return bundle
  
  
  
  
  class SectorResource(ModelResource):
  
      class Meta:
          queryset = Sector.objects.all()
          resource_name = 'sectors'
          include_resource_uri = False
          serializer = Serializer(formats=['xml', 'json'])
          allowed_methods = ['get']
  
  class OrganisationResource(ModelResource):
      type = fields.OneToOneField(OrganisationTypeResource, 'type', full=True, null=True)
  
      class Meta:
          queryset = Organisation.objects.all()
          resource_name = 'organisations'
          serializer = Serializer(formats=['xml', 'json'])
          filtering = {
              # example to allow field specific filtering.
              'name': ALL,
              'abbreviation': ALL
          }
  
subject: add country_id to cities api call