tomchristie/django-rest-framework — pull request #511 by toranb (2012-12-16 01:42:43+00:00)
Title: ManyPrimaryKeyRelatedField now supports create for one-to-many rel

In the current release if you are using the field type "ManyPrimaryKeyRelatedField" you cannot create a model unless you flip the "read_only" bit on. In the event that you actually need to create a model with this related data it blew up.