Generics can't filter on a different lookup kwarg

[kevin-brown]

lookup_kwarg was added at in dc45bc7, that allowed you to get an object based on a different kwarg than the lookup_field. This was useful for cases where having the kwarg match the lookup_field does not make sense (too generic) or where it needs to be consistent across your appplication.

In the merge for that branch (835d3f8), lookup_kwargs was dropped. I can't find the commit that it was dropped in, or any reason for why it was done.

This is probably related to django/#20342, but that was eventually closed.

[tomchristie]

Added lookup_url_kwarg to allow the URL kwarg and the model lookup field to differ.

lookup_kwargs was dropped

I don't think lookup_kwarg was ever a bit of public API - I think the name probably just changed to lookup_field somewhere before it was released.

Latest commit now adds lookup_url_kwarg, matching the django-vanilla-views lookup style.

https://github.com/tomchristie/django-vanilla-views/blob/master/vanilla/model_views.py