Can I have a field be writable for validation, but not get passed to the model save in django rest framework? -

currently i'm doing this:

class surveyresponseserializer(serializers.modelserializer):     repeat_email = serializers.charfield()      def create(self, validated_data):         validated_data.pop('repeat_email')         return super(surveyresponseserializer, self).create(validated_data) 

is there nicer way fix this? don't want keep growing create every field.