def add_subscription(request):
"""
This is complicated. (tm)
A subscription can be:
1) A user's service: The subscription has to be created if it doesn't exist
before and the user will be its owner (only subscriber)
2) A socnode feed: in this case, create the subscription only if it doesn't
exist before and append the user to its subscribers.
"""
host = 'http://%s' % request.get_host()
if request.method == 'POST':
surl = request.POST.get('surl', '')
is_service = request.POST.get('is_service', '0')
subscription_kind = 'service' if is_service=='1' else 'friend'
subscription = url_to_subscription(surl)
if subscription:
hub = subscription.hub
subscription.is_service = True if is_service=='1' else False
msg = '%s is on %s' % (surl, hub)
# is there any similar subscription?
similar = Subscription.all().filter('feed_url = ', subscription.feed_url)
if similar and not subscription.is_service:
subscription = similar[0]
created = False
else:
created = True
subscription.subscribers.append(request.user.key())
subscription.save()
post_subscribe.send(sender=Subscription, instance=subscription,
host=host, created=created)
else:
msg = '%s is not a valid feed url' % surl
return HttpResponseRedirect('/subscriptions/?kind=%s' %
subscription_kind)
def list_subscriptions(request):
kind = request.GET.get("kind", 'friend')
his_subscriptions = Subscription.all().filter('subscribers = ',
request.user.key())
if kind == 'service':
his_subscriptions.filter('is_service = ', True)
elif kind == 'friend':
his_subscriptions.filter('is_service = ', False)
extra_context = {'kind': kind}
return object_list(request, his_subscriptions, paginate_by=10,
extra_context=extra_context)
def cron_job(request):
"""
fetch subscriptions that aren't connected to a hub.
"""
nohub_subscriptions = Subscription.all().filter('hub = ', "")
keys = [str(s.key()) for s in nohub_subscriptions]
# now launch eftching tasks
for key in keys:
logging.info('task set to fetch subscription %s' % key)
taskqueue.add(url='/subscriptions/fetch_feed/', params={'key': key})
return HttpResponse('done')
