Use the release version of South than the latest version.
South is very critical for our application. So don't take
any risk with the users data. Use the release version.
from django import shortcuts
from django.http import Http404
from django.contrib.auth.models import User
from pytask.profile.models import Notification
def get_notification(nid, user):
""" if notification exists, and belongs to the current user, return it.
else return None.
"""
user_notifications = user.notification_sent_to.filter(is_deleted=False).order_by('sent_date')
current_notifications = user_notifications.filter(pk=nid)
if user_notifications:
current_notification = current_notifications[0]
try:
newer_notification = current_notification.get_next_by_sent_date(sent_to=user, is_deleted=False)
newest_notification = user_notifications.reverse()[0]
if newest_notification == newer_notification:
newest_notification = None
except Notification.DoesNotExist:
newest_notification, newer_notification = None, None
try:
older_notification = current_notification.get_previous_by_sent_date(sent_to=user, is_deleted=False)
oldest_notification = user_notifications[0]
if oldest_notification == older_notification:
oldest_notification = None
except:
oldest_notification, older_notification = None, None
return newest_notification, newer_notification, current_notification, older_notification, oldest_notification
else:
return None, None, None, None, None
def get_user(uid):
user = shortcuts.get_object_or_404(User, pk=uid)
if user.is_active:
return user
else:
raise Http404