Allow query objects to be passed into the extra ORM method

[ErikW]

It would be really handy (and probably also make ORM querys that use extra more portable) if extra() allowed "query" objects to be passed in addition to raw SQL.

For example:

In addition to:

Blog.objects.all().extra(select={'blah': 'SELECT foo FROM bar WHERE created < NOW()'})

accept:

Blog.objects.all().extra(select={'blah': Bar.objects.filter(created__lt=datetime.datetime.now().values('foo').query})

Seems like a great addition to me. :-)

[Alex Gaynor]

This is already possible using query.as_sql(), however that's an internal. In any event extra() is a down to the metal pure SQL thing, we aren't going to build up a ton of infastructure around it.

[Jacob]

Milestone 1.2 deleted