diff options
Diffstat (limited to 'rest_framework/serializers.py')
| -rw-r--r-- | rest_framework/serializers.py | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/rest_framework/serializers.py b/rest_framework/serializers.py index cc6d60da..a81cbc29 100644 --- a/rest_framework/serializers.py +++ b/rest_framework/serializers.py @@ -358,11 +358,13 @@ class BaseSerializer(WritableField): try: value = data[field_name] except KeyError: - if self.required: - raise ValidationError(self.error_messages['required']) - if self.default is None: + if self.default is not None and not self.partial: + # Note: partial updates shouldn't set defaults + value = copy.deepcopy(self.default) + else: + if self.required: + raise ValidationError(self.error_messages['required']) return - value = copy.deepcopy(self.default) # Set the serializer object if it exists obj = getattr(self.parent.object, field_name) if self.parent.object else None |