Mercurial > public > sg101

annotate forums/views/subscriptions.py @ 701:094492e66eb9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Implement rate limiting on user photo uploads.
author Brian Neal <bgneal@gmail.com>
date Sat, 14 Sep 2013 17:23:13 -0500
parents ee87ea74d46b
children 4aadaf3bc234
rev   line source
bgneal@232 1 """This module handles the subscriptions of users to forum topics."""
bgneal@232 2 from django.conf import settings
bgneal@232 3 from django.contrib.auth.decorators import login_required
bgneal@232 4 from django.contrib.sites.models import Site
bgneal@232 5 from django.core.paginator import InvalidPage
bgneal@232 6 from django.core.urlresolvers import reverse
bgneal@232 7 from django.http import HttpResponseRedirect
bgneal@232 8 from django.http import Http404
bgneal@232 9 from django.template.loader import render_to_string
bgneal@232 10 from django.shortcuts import get_object_or_404
bgneal@232 11 from django.shortcuts import render_to_response
bgneal@232 12 from django.template import RequestContext
bgneal@232 13 from django.views.decorators.http import require_POST
bgneal@232 14
bgneal@386 15 from forums.models import Topic
bgneal@459 16 import forums.permissions as perms
bgneal@232 17 from core.functions import send_mail
bgneal@232 18 from core.paginator import DiggPaginator
bgneal@232 19
bgneal@232 20
bgneal@522 21 def notify_topic_subscribers(post, defer=True):
bgneal@301 22 """
bgneal@301 23 The argument post is a newly created post. Send out an email
bgneal@301 24 notification to all subscribers of the post's parent Topic.
bgneal@522 25
bgneal@522 26 The defer flag is passed to core.functions.send_mail. If True, the mail is
bgneal@522 27 sent on a Celery task. If False, the mail is sent on the caller's thread.
bgneal@301 28 """
bgneal@232 29 topic = post.topic
bgneal@386 30 recipients = topic.subscribers.exclude(id=post.user.id).values_list(
bgneal@386 31 'email', flat=True)
bgneal@232 32
bgneal@232 33 if recipients:
bgneal@232 34 site = Site.objects.get_current()
bgneal@232 35 subject = "[%s] Topic Reply: %s" % (site.name, topic.name)
bgneal@232 36 url_prefix = "http://%s" % site.domain
bgneal@232 37 post_url = url_prefix + post.get_absolute_url()
bgneal@232 38 unsubscribe_url = url_prefix + reverse("forums-manage_subscriptions")
bgneal@232 39 msg = render_to_string("forums/topic_notify_email.txt", {
bgneal@232 40 'poster': post.user.username,
bgneal@232 41 'topic_name': topic.name,
bgneal@232 42 'message': post.body,
bgneal@232 43 'post_url': post_url,
bgneal@232 44 'unsubscribe_url': unsubscribe_url,
bgneal@232 45 })
bgneal@232 46 for recipient in recipients:
bgneal@522 47 send_mail(subject, msg, settings.DEFAULT_FROM_EMAIL, [recipient],
bgneal@522 48 defer=defer)
bgneal@232 49
bgneal@232 50
bgneal@232 51 @login_required
bgneal@232 52 @require_POST
bgneal@232 53 def subscribe_topic(request, topic_id):
bgneal@232 54 """Subscribe the user to the requested topic."""
bgneal@232 55 topic = get_object_or_404(Topic.objects.select_related(), id=topic_id)
bgneal@459 56 if perms.can_access(topic.forum.category, request.user):
bgneal@386 57 topic.subscribers.add(request.user)
bgneal@232 58 return HttpResponseRedirect(
bgneal@232 59 reverse("forums-subscription_status", args=[topic.id]))
bgneal@386 60 raise Http404
bgneal@232 61
bgneal@232 62
bgneal@232 63 @login_required
bgneal@232 64 @require_POST
bgneal@232 65 def unsubscribe_topic(request, topic_id):
bgneal@232 66 """Unsubscribe the user to the requested topic."""
bgneal@232 67 topic = get_object_or_404(Topic, id=topic_id)
bgneal@386 68 topic.subscribers.remove(request.user)
bgneal@232 69 return HttpResponseRedirect(
bgneal@232 70 reverse("forums-subscription_status", args=[topic.id]))
bgneal@232 71
bgneal@232 72
bgneal@232 73 @login_required
bgneal@232 74 def subscription_status(request, topic_id):
bgneal@232 75 """Display the subscription status for the given topic."""
bgneal@232 76 topic = get_object_or_404(Topic.objects.select_related(), id=topic_id)
bgneal@232 77 is_subscribed = request.user in topic.subscribers.all()
bgneal@232 78 return render_to_response('forums/subscription_status.html', {
bgneal@232 79 'topic': topic,
bgneal@232 80 'is_subscribed': is_subscribed,
bgneal@232 81 },
bgneal@232 82 context_instance=RequestContext(request))
bgneal@232 83
bgneal@232 84
bgneal@232 85 @login_required
bgneal@232 86 def manage_subscriptions(request):
bgneal@232 87 """Display a user's topic subscriptions, and allow them to be deleted."""
bgneal@232 88
bgneal@232 89 user = request.user
bgneal@232 90 if request.method == "POST":
bgneal@232 91 if request.POST.get('delete_all'):
bgneal@386 92 user.subscriptions.clear()
bgneal@232 93 else:
bgneal@232 94 delete_ids = request.POST.getlist('delete_ids')
bgneal@232 95 try:
bgneal@232 96 delete_ids = [int(id) for id in delete_ids]
bgneal@232 97 except ValueError:
bgneal@232 98 raise Http404
bgneal@232 99
bgneal@386 100 for topic in user.subscriptions.filter(id__in=delete_ids):
bgneal@386 101 user.subscriptions.remove(topic)
bgneal@232 102
bgneal@383 103 return HttpResponseRedirect(reverse("forums-manage_subscriptions"))
bgneal@383 104
bgneal@383 105 page_num = request.GET.get('page', 1)
bgneal@232 106 topics = user.subscriptions.select_related().order_by('-update_date')
bgneal@232 107 paginator = DiggPaginator(topics, 20, body=5, tail=2, margin=3, padding=2)
bgneal@232 108 try:
bgneal@232 109 page_num = int(page_num)
bgneal@232 110 except ValueError:
bgneal@232 111 page_num = 1
bgneal@232 112 try:
bgneal@232 113 page = paginator.page(page_num)
bgneal@232 114 except InvalidPage:
bgneal@232 115 raise Http404
bgneal@232 116
bgneal@232 117 return render_to_response('forums/manage_topics.html', {
bgneal@232 118 'page_title': 'Topic Subscriptions',
bgneal@232 119 'description': 'The forum topics you are currently subscribed to are listed below.',
bgneal@232 120 'page': page,
bgneal@232 121 },
bgneal@232 122 context_instance=RequestContext(request))