def unsubscribe(request, newsletter_slug):
"""
Unsubscribe a user from the newsletter.
Requires a POST with an email
"""
newsletter = get_object_or_404(Newsletter, slug=newsletter_slug)
if request.method != 'POST':
if is_json_request:
return JSONResponse({
'success': False,
'message': 'Only POST methods are allowed.'})
return HttpResponseNotAllowed(['POST',])
if 'email' not in request.POST:
if is_json_request:
return JSONResponse({
'success': False,
'message': 'No email field was included.'})
raise Http404("email not included in POST")
try:
sub = Subscription.objects.get(email=request.POST['email'],
newsletter=newsletter)
sub.delete()
unsubscription.send(sender=newsletter, email=request.POST['email'],
newsletter=newsletter)
send_notification([newsletter], [], request.POST['email'])
except Subscription.DoesNotExist:
pass # The user wasn't subscribed, so just fail gracefully.
if is_json_request(request):
return JSONResponse({'success': True, 'message': ''})
return render_to_response('newsletters/unsubscribe.html', {
'newsletter': newsletter
}, RequestContext(request))
def sync_subscriptions(sub_form):
"""
Do all the work of (un)subscribing newsletters for an account
"""
old_subs = Subscription.objects.filter(email=sub_form.cleaned_data['email'])
old_subs_nl = [item.newsletter for item in old_subs]
new_subs = Newsletter.objects.filter(name__in=sub_form.get_subscriptions())
unsubs = [sub for sub in old_subs if sub.newsletter not in new_subs]
unsub_nl = [sub.newsletter for sub in unsubs]
subs = [nl for nl in new_subs if nl not in old_subs_nl]
for item in unsubs:
unsubscription.send(
sender=item.newsletter,
email=sub_form.cleaned_data['email'],
newsletter=item.newsletter)
item.delete()
for item in subs:
sub = Subscription.objects.create(
email=sub_form.cleaned_data['email'],
newsletter=item,
confirmed=AUTO_CONFIRM,
)
subscription.send(
sender=item,
email=sub_form.cleaned_data['email'],
newsletter=item,
)
send_notification(unsub_nl, subs, sub_form.cleaned_data['email'])
return unsub_nl, subs