from operator import attrgetter from main.models import Arch, 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 arch 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=arch).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() is_same = lambda q: p.is_same_version(q) and p.repo == q.repo samepkgs = filter(is_same, pkgs) samepkgs.append(p) samepkgs.sort(key=attrgetter('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: