tomchristie/django-rest-framework — pull request #1052 by craigds (2013-08-21 04:55:08+00:00)
Title: Handle dotted field.source in writable serializers.

I assumed that dotted field.source worked for writable serializers already, but it turns out it doesn't.

This adds it.

Needs tests, but I can add those after the basic idea gets some review.