Let's say I have a queryset of things Bill has worked on like this:
test=Things.objects.filter(user='Bill')
Now I want to sort all those things by the date they were assigned to bill. Unfortunately the assignment date isn't a field in the Thing model. Instead there's a method named thing_date() that figures it out and returns the date. For example, the following:
Thingobject.thing_date()
...returns the date. I guess what I want to do is something like:
test=Things.objects.filter(user='Bill').order_by(self__thing_date())
...but I know that won't work. Is there another way?
Update
Not surprisingly other folks have been down this road before. Link