> Instances of Place will be stored in one table, and instances
> of Restaurant will be stored in another table. How would I go
> about implementing an efficient 'extent' query: a QuerySet
> which would give me an instance of Place for each row in
> **both** tables? (Or instances of Place or Restaurant as
> appropriate, but all in one query set.)
>>> from bennett.james.caveats.subclassing import is_wise
>>> print is_wise
False
That said... ;)
Would something like the following work for you?
places = Place.objects.filter(...)
restaurants = Restaurants.objects.filter(...)
all_places = itertools.chain(places, restaurants)
for place in all_places:
do_something(place)
There's some duplication of the filter(...) code, which one could
unify into something like
f = {'category': 42, 'city__icontains': 'burg'}
places = Place.objects.filter(**f)
restaurants = Restaurants.objects.filter(**f)
all_places = itertools.chain(places, restaurants)
to filter both as if you had done
...filter(category=42, city_icontains='burg')
on both datasets.
Just an idea,
-tkc
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Django users" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/django-users?hl=en
-~----------~----~----~----~------~----~------~--~---
