Evan wrote:
> Hey Guys I noticed one of my pages taking over 50seconds to load, and
> found the problem out the problem was the paginator loading a lot more
> rows than needed. I was wondering if this is how the paginator is
> supposed to work or if I'm doing something incorrect.
>
> Here's the view i'm using
> def browse_posts(request, cur_page=1):
> feeds = [11,13,14,15]
> posts = Post.objects.filter(feed__in=feeds).order_by('-
> date_modified')
> cur_page=int(cur_page)
> results_per_page = 10
> paginator = Paginator(posts, results_per_page)
> thepage = paginator.page(cur_page)
This gets you what you want...it efficiently uses LIMIT where it
can (I presume you're using one of the big-3 DBs, MySQL,
PostgreSQL, or sqlite, rather than an old/hacked version that
allows SQL Server, which doesn't support a LIMIT/OFFSET syntax,
but only a TOP N syntax)
> posts = thepage.object_list
this is what likely gives you the problems, as it's the whole
record-set.
> is_paginated = True
> base_url = "/news/browse"
> return render_to_response('news/browse.html', locals(),
> context_instance=RequestContext(request))
which you're passing via locals()
So if your template makes use of "posts" anywhere (including
debugging output), instead of using "thepage", you'll see the
dire times you're seeing.
-tim
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