From 71eb45ed5a093c814342240355276d8d04fd0c22 Mon Sep 17 00:00:00 2001 From: Ciprian Herman Date: Tue, 18 Aug 2020 17:28:15 +0300 Subject: [PATCH] fix nested serializer validation --- rest_framework/serializers.py | 2 ++ 1 file changed, 2 insertions(+) diff --git a/rest_framework/serializers.py b/rest_framework/serializers.py index 916f8bec4..06458adfd 100644 --- a/rest_framework/serializers.py +++ b/rest_framework/serializers.py @@ -476,6 +476,8 @@ class Serializer(BaseSerializer, metaclass=SerializerMetaclass): validate_method = getattr(self, 'validate_' + field.field_name, None) primitive_value = field.get_value(data) try: + if self.instance and hasattr(field, 'fields'): + field.instance = getattr(self.instance, field.source) validated_value = field.run_validation(primitive_value) if validate_method is not None: validated_value = validate_method(validated_value)