DRF wrongly moves validation business logic from models to views

[giuseppenovielli]

Start Django Rest Framework 3.0 announcement Model.full_clean() is not called before save instance into db.

This policy moves validation business logic from models to views and break DRY purpose.

encode/django-rest-framework#7850 (comment)

Workaround
ValidateModelSerializer
NestedValidateModelSerializer

SPECS
It enable developers to run model.full_clean(), when serializers.is_valid() is called.
It also have limited support to nested writable serializer. Developers can pass into **kwargs parameters, other foreignKey not yet saved into db.

It is a valid compromise to help DRY purpose?