Hey, On Fri, Jul 17, 2009 at 5:06 PM, Miriam<magol...@gmail.com> wrote: > > There currently is no way in Django to pre-fetch one-to-many and/or > many-to-many relationships, right? > > There's select_related, which will pre-fetch FK or one-to-one, which > is great, but not sufficient. > > Suppose I am fetching a list of Blog posts and I want to pre-fetch the > Comments for each of these posts? There's no way to do that in > Django. > > I was looking through the tickets at code.djangoproject.com and I > didn't see anything about this. > > Does anyone know if this feature is planned for sometime down the > road? Anyone have a work-around or a patch or anything. This is > supremely irritating. >
I have implemented prefetching (I've choosen the name 'prefilling', but prefetching might be more appropriate) for a CMS I'm working on; you can find the code here: <http://github.com/matthiask/feincms/blob/426e1b62c3df89a990f5f569abc5ef53bf38e0e7/feincms/utils.py> I can do something like that to prefetch authors (m2m), images and richtext elements (both reverse foreign keys) for a list of blog posts for example. It wont work for django.contrib.comments though, since the comments model uses generic relations, and I've not implemented prefetching for those yet. Matthias Maybe it will inspire someone to create > Miriam > > > > -- Matthias Kestenholz Konzept & Programmierung FEINHEIT GmbH Dienerstrasse 15 CH-8004 Zürich --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
