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from operator import attrgetter
from main.models import Arch, Package, Repo
from main.utils import cache_function
class RecentUpdate(object):
def __init__(self, packages):
if len(packages) == 0:
raise Exception
first = packages[0]
self.pkgbase = first.pkgbase
self.repo = first.repo
self.version = ''
packages = sorted(packages, key=attrgetter('arch', 'pkgname'))
# split the packages into two lists. we need to prefer packages
# matching pkgbase as our primary, and group everything else in other.
self.packages = [pkg for pkg in packages if pkg.pkgname == pkg.pkgbase]
self.others = [pkg for pkg in packages if pkg.pkgname != pkg.pkgbase]
if self.packages:
version = self.packages[0].full_version
if all(version == pkg.full_version for pkg in self.packages):
self.version = version
elif self.others:
version = self.others[0].full_version
if all(version == pkg.full_version for pkg in self.others):
self.version = version
def package_links(self):
'''Returns either actual packages or package-standins for virtual
pkgbase packages.'''
if self.packages:
# we have real packages- just yield each in sequence
for package in self.packages:
yield package
else:
# time to fake out the template, this is a tad dirty
arches = set(pkg.arch for pkg in self.others)
for arch in arches:
url = '/packages/%s/%s/%s/' % (
self.repo.name.lower(), arch.name, self.pkgbase)
package_stub = {
'pkgname': self.pkgbase,
'arch': arch,
'repo': self.repo,
'get_absolute_url': url
}
yield package_stub
@cache_function(300)
def get_recent_updates(number=15):
# 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 = []
# grab a few extra so we can hopefully catch everything we need
fetch = number * 6
for arch in Arch.objects.all():
pkgs += list(Package.objects.normal().filter(
arch=arch).order_by('-last_update')[:fetch])
pkgs.sort(key=attrgetter('last_update'))
updates = []
while len(pkgs) > 0:
pkg = pkgs.pop()
in_group = lambda x: pkg.repo == x.repo and pkg.pkgbase == x.pkgbase
samepkgs = [other for other in pkgs if in_group(other)]
samepkgs.append(pkg)
# now remove all the packages we just pulled out
pkgs = [other for other in pkgs if other not in samepkgs]
update = RecentUpdate(samepkgs)
updates.append(update)
return updates[:number]
# vim: set ts=4 sw=4 et:
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