evorepo/public/utils.py
Dan McGee da9a1ecbf8 Cache the recent updates list
Signed-off-by: Dan McGee <dan@archlinux.org>
2010-06-21 00:51:39 -05:00

29 lines
1.1 KiB
Python

from main.models import Arch, Repo, Package
from main.utils import cache_function
@cache_function(300)
def get_recent_updates():
# This is a bit of magic. We are going to show 15 on the front page, but we
# want to try and eliminate cross-architecture wasted space. Pull enough
# packages that we can later do some screening and trim out the fat.
pkgs = []
for a in Arch.objects.all():
# grab a few extra so we can hopefully catch everything we need
pkgs += list(Package.objects.select_related('arch', 'repo').filter(arch=a).order_by('-last_update')[:50])
pkgs.sort(key=lambda q: q.last_update)
updates = []
ctr = 0
while ctr < 15 and len(pkgs) > 0:
# not particularly happy with this logic, but it works.
p = pkgs.pop()
samepkgs = filter(lambda q: p.is_same_version(q) and p.repo == q.repo, pkgs)
samepkgs.append(p)
samepkgs.sort(key=lambda q: q.arch.name)
updates.append(samepkgs)
for q in samepkgs:
if p != q: pkgs.remove(q)
ctr += 1
return updates
# vim: set ts=4 sw=4 et: