euscan-ng/euscanwww/djeuscan/helpers.py
volpino d1058aed8b euscanwww: initial implementation of euscan updates email
Signed-off-by: volpino <fox91@anche.no>
2012-08-11 15:09:42 +02:00

129 lines
3.2 KiB
Python

"""
djeuscan.helpers
"""
from distutils.version import StrictVersion, LooseVersion
from django.db.models import Q
def xint(i):
"""
Tries to cast to int, fallbacks to 0
"""
try:
return int(i)
except Exception:
return 0
def select_related_last_versions(queryset):
queryset = queryset.select_related(
'last_version_gentoo',
'last_version_overlay',
'last_version_upstream'
)
def version_key(version):
version = version.version
try:
return StrictVersion(version)
# in case of abnormal version number, fall back to LooseVersion
except ValueError:
return LooseVersion(version)
def packages_from_names(data):
"""
Returns a list of Package objects from a string of names
"""
from djeuscan.models import Package
packages = []
data = data.replace("\r", "")
for pkg in data.split('\n'):
if '/' in pkg:
cat, pkg = pkg.split('/')
packages.extend(Package.objects.filter(category=cat, name=pkg))
else:
packages.extend(Package.objects.filter(name=pkg))
return packages
def rename_fields(vqs, fields):
ret = []
for n in vqs:
for tr in fields:
if tr[0] in n:
n[tr[1]] = n[tr[0]]
del n[tr[0]]
ret.append(n)
return ret
class catch_and_return(object):
def __init__(self, err, response):
self.err = err
self.response = response
def __call__(self, fn):
def wrapper(*args, **kwargs):
try:
return fn(*args, **kwargs)
except self.err:
return self.response
return wrapper
def get_profile(user):
from djeuscan.models import UserProfile
try:
return user.get_profile()
except UserProfile.DoesNotExist:
UserProfile.objects.create(user=user)
return user.get_profile()
def get_account_categories(user):
from djeuscan.models import Package
# TODO: This is quite ugly
category_names = [obj.name for obj in get_profile(user).categories.all()]
return [c for c in Package.objects.categories()
if c["category"] in category_names]
def get_account_herds(user):
from djeuscan.models import Package
ids = [herd.pk for herd in get_profile(user).herds.all()]
return Package.objects.herds(ids=ids)
def get_account_maintainers(user):
from djeuscan.models import Package
ids = [obj.pk for obj in get_profile(user).maintainers.all()]
return Package.objects.maintainers(ids=ids)
def get_account_versionlogs(profile):
"""
Returns all watched packages
"""
from djeuscan.models import Package, VersionLog
q_categories = Q(category__in=[
category.name for category in profile.categories.all()])
q_herds = Q(herds__in=profile.herds.all())
q_maintainers = Q(maintainers__in=profile.maintainers.all())
packages = list(profile.packages.all()) + list(Package.objects.filter(
q_categories | q_herds | q_maintainers))
overlays = [o.name for o in profile.overlays.all()]
return VersionLog.objects.filter(
Q(package__in=packages) | Q(overlay__in=overlays)
)