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Diffstat (limited to 'docs/api-guide/serializers.md')
| -rw-r--r-- | docs/api-guide/serializers.md | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/docs/api-guide/serializers.md b/docs/api-guide/serializers.md index a9589144..19efde3c 100644 --- a/docs/api-guide/serializers.md +++ b/docs/api-guide/serializers.md @@ -34,7 +34,7 @@ Declaring a serializer looks very similar to declaring a form: created = serializers.DateTimeField() def restore_object(self, attrs, instance=None): - if instance: + if instance is not None: instance.title = attrs['title'] instance.content = attrs['content'] instance.created = attrs['created'] @@ -77,6 +77,10 @@ When deserializing data, we can either create a new instance, or update an exist serializer = CommentSerializer(data=data) # Create new instance serializer = CommentSerializer(comment, data=data) # Update `instance` +By default, serializers must be passed values for all required fields or they will throw validation errors. You can use the `partial` argument in order to allow partial updates. + + serializer = CommentSerializer(comment, data={'content': u'foo bar'}, partial=True) # Update `instance` with partial data + ## Validation When deserializing data, you always need to call `is_valid()` before attempting to access the deserialized object. If any validation errors occur, the `.errors` and `.non_field_errors` properties will contain the resulting error messages. |