python - Django Rest Framework : Nested Serializer Dynamic Model Fields -

i have defined serializers below. i'm using mixin change display fields on fly.

class serializertwo(serializers.modelserializer):      class meta:         model = 2         fields = ('name', 'contact_number')  class serializerone(dynamicfieldsmodelserializer, serializers.modelserializer):     another_field = serializertwo()      class meta:         lookup_field = 'uuid'         model = 1         fields = ('status', 'another_field',) 

now want is, dynamically pass(on fly) fields used serializertwo, i'm doing serializerone.

the way i'm doing serializerone is:

# fields=('status') serializerone(queryset, fields=fields) 

is there way, using can add fields serializertwo above serializer initialization.

# fields=('status', 'name') name serializertwo # double underscore notation not work here fields, another_field__name cannot used serializerone(queryset, fields=fields) 

i use following way implement called nested serializer dynamic model fields.

class serializertwo(serializers.modelserializer):     fields_filter_key = 'two_fields'     class meta:         model = 2         fields = ('name', 'contact_number')  class serializerone(dynamicfieldsmodelserializer, serializers.modelserializer):     fields_filter_key = 'one_fields'     another_field = serializers.serializermethodfield()      class meta:         lookup_field = 'uuid'         model = 1         fields = ('status', 'another_field',)      def get_another_field(self, obj):         another_filed_serializer = serializertwo(obj.another_field,                                                   context=self.context)         return another_filed_serializer.data  

and make modification dynamicfieldsmodelserializer

class dynamicfieldsmodelserializer(serializers.modelserializer):     def __init__(self, *args, **kwargs):         super(dynamicfieldsmodelserializer, self).__init__(*args, **kwargs)          if 'request' not in self.context or not self.fields_filter_key:             return         fields = self.context['request'].query_params.get(self.fields_filter_key)         if fields:             fields = fields.split(',')             allowed = set(fields)             existing = set(self.fields.keys())             field_name in existing - allowed:                 self.fields.pop(field_name) 

so last problem how organize url, write get url this:

domain/something?one_fields=name,contact_number&two_fields=another_field