Hi Ben,
Thank you, I had overlooked that! It works exactly as I wanted it to! Mike On 4/6/2007, "Benjamin Slavin" <[EMAIL PROTECTED]> wrote: > >Hi Mike, > >You'll probably want to check-out select_related. [0] > >With that feature, you could use: >posts = Post.objects.select_related().filter(thread__slug=thread_slug) > >If the copy of Django you're using is recent enough (I don't know if >it's in 0.96), you can use the 'depth' argument... >posts = Post.objects.select_related(depth=2).filter(thread__slug=thread_slug) > >Also, if you want to reduce DB load you could have your ForeignKey to >User directly, rather than Profile... but I don't know if you >reference profile elsewhere. > >Good luck! > -- Ben > >[0] http://www.djangoproject.com/documentation/db-api/#select-related > >On 4/6/07, Mike H <[EMAIL PROTECTED]> wrote: >> >> >> Hi all, >> >> I'm implementing a simple forum which looks like this, but I'm >> concerned about how many queries are going to get run, and if there is a >> more efficient way o structuring my view : >> >> from django.contrib.auth.models import User >> >> class Profile(models.Model): >> ... some attributes here, avatar, tagline etc. ... >> user = models.ForeignKey(User) >> >> class Post(models.Model): >> .. some forum info here, not important ... >> poster = models.ForeignKey(Profile) >> >> So, say I am displaying a list of posts, and as part of the template I >> want to output some information from their profile, and their username >> which is stored in their user record. My view code looks something like >> this : >> >> def thread(request, thread_slug): >> posts = Post.objects.filter(thread__slug=thread_slug) >> return render_to_response('posts.html',{'posts': posts,}) >> >> and my template looks like this: >> >> {% for post in posts %} >> {{ post.poster.user.username }} said {{ post.content }} >> {% endfor %} >> >> Is accessing the username from the user inside the poster inside the post >> going to trigger a query for every post I display? Is there a better way >> to access information that's a few levels deep like that? >> >> Thanks for any pointers you can give! >> >> Mike >> >> > >> > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
