Am 29.03.2011 um 20:46 schrieb Shawn Milochik: > They can create a custom manager on the abstract class that would > return an iterable, perhaps using itertools.chain() of the querysets. > > It depends on what they expect to do with the output of this custom > manager, and they'd obviously lose the ability to treat this output as > a queryset by using additional sorts & filters and such. But if the > goal is to be able to get instances from all subclasses at once then > this is a viable solution, FWIW.
FWIW, here is an implementation that does just that: https://github.com/emulbreh/shrubbery/blob/master/shrubbery/db/union.py __ Johannes -- You received this message because you are subscribed to the Google Groups "Django developers" group. To post to this group, send email to django-developers@googlegroups.com. To unsubscribe from this group, send email to django-developers+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-developers?hl=en.
