dot-notation not working

Based on https://github.com/rsinger86/drf-flex-fields#dynamically-setting-fields,

Here are my serializers:

class AddressBookSerializer(FlexFieldsModelSerializer):
    class Meta:
        model = SellerAddressBook
        fields = ('id', 'address', 'city', 'state', )

class OrderSerializer(FlexFieldsModelSerializer):
    address = AddressBookSerializer(many=False)

    class Meta:
        model = Order
        fields = ('id', 'order_name', 'address',)

On Get, /orders/123/?fields=id,order_name,address.city

ACTUAL RESULT

{
  "id" : 123
  "order_name" : "Order Name",
  "address" : {
    "id" : "1",
    "address": "my add",
    "city": "my_city",
    "state": " my state"
}

EXPECTED RESULT

{
  "id" : 13322
  "order_name" : "Order Name",
  "address" : {
      "city": "my_city"
 }

[cdrx]

@rsinger86 this is something I need. I will gladly work up a PR, but could you please give me some guidance on the best way to implement it?

[russian-developer]

Everybody wants it but nobody what to do anything 😄