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annotate gpp/forums/views/subscriptions.py @ 467:b910cc1460c8

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Add the ability to conditionally add model instances to the search index on update. This is not perfect, as some instances should be deleted from the index if they are updated such that they should not be in the index anymore. Will think about and address that later.
author Brian Neal <bgneal@gmail.com>
date Sun, 24 Jul 2011 18:12:20 +0000
parents 9d3bd7304050
children 82b97697312e
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@232 21 def notify_topic_subscribers(post):
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@301 25 """
bgneal@301 26 #TODO: consider moving this function of the HTTP request/response cycle.
bgneal@232 27
bgneal@232 28 topic = post.topic
bgneal@386 29 recipients = topic.subscribers.exclude(id=post.user.id).values_list(
bgneal@386 30 'email', flat=True)
bgneal@232 31
bgneal@232 32 if recipients:
bgneal@232 33 site = Site.objects.get_current()
bgneal@232 34 subject = "[%s] Topic Reply: %s" % (site.name, topic.name)
bgneal@232 35 url_prefix = "http://%s" % site.domain
bgneal@232 36 post_url = url_prefix + post.get_absolute_url()
bgneal@232 37 unsubscribe_url = url_prefix + reverse("forums-manage_subscriptions")
bgneal@232 38 msg = render_to_string("forums/topic_notify_email.txt", {
bgneal@232 39 'poster': post.user.username,
bgneal@232 40 'topic_name': topic.name,
bgneal@232 41 'message': post.body,
bgneal@232 42 'post_url': post_url,
bgneal@232 43 'unsubscribe_url': unsubscribe_url,
bgneal@232 44 })
bgneal@232 45 for recipient in recipients:
bgneal@232 46 send_mail(subject, msg, settings.DEFAULT_FROM_EMAIL, [recipient])
bgneal@232 47
bgneal@232 48
bgneal@232 49 @login_required
bgneal@232 50 @require_POST
bgneal@232 51 def subscribe_topic(request, topic_id):
bgneal@232 52 """Subscribe the user to the requested topic."""
bgneal@232 53 topic = get_object_or_404(Topic.objects.select_related(), id=topic_id)
bgneal@459 54 if perms.can_access(topic.forum.category, request.user):
bgneal@386 55 topic.subscribers.add(request.user)
bgneal@232 56 return HttpResponseRedirect(
bgneal@232 57 reverse("forums-subscription_status", args=[topic.id]))
bgneal@386 58 raise Http404
bgneal@232 59
bgneal@232 60
bgneal@232 61 @login_required
bgneal@232 62 @require_POST
bgneal@232 63 def unsubscribe_topic(request, topic_id):
bgneal@232 64 """Unsubscribe the user to the requested topic."""
bgneal@232 65 topic = get_object_or_404(Topic, id=topic_id)
bgneal@386 66 topic.subscribers.remove(request.user)
bgneal@232 67 return HttpResponseRedirect(
bgneal@232 68 reverse("forums-subscription_status", args=[topic.id]))
bgneal@232 69
bgneal@232 70
bgneal@232 71 @login_required
bgneal@232 72 def subscription_status(request, topic_id):
bgneal@232 73 """Display the subscription status for the given topic."""
bgneal@232 74 topic = get_object_or_404(Topic.objects.select_related(), id=topic_id)
bgneal@232 75 is_subscribed = request.user in topic.subscribers.all()
bgneal@232 76 return render_to_response('forums/subscription_status.html', {
bgneal@232 77 'topic': topic,
bgneal@232 78 'is_subscribed': is_subscribed,
bgneal@232 79 },
bgneal@232 80 context_instance=RequestContext(request))
bgneal@232 81
bgneal@232 82
bgneal@232 83 @login_required
bgneal@232 84 def manage_subscriptions(request):
bgneal@232 85 """Display a user's topic subscriptions, and allow them to be deleted."""
bgneal@232 86
bgneal@232 87 user = request.user
bgneal@232 88 if request.method == "POST":
bgneal@232 89 if request.POST.get('delete_all'):
bgneal@386 90 user.subscriptions.clear()
bgneal@232 91 else:
bgneal@232 92 delete_ids = request.POST.getlist('delete_ids')
bgneal@232 93 try:
bgneal@232 94 delete_ids = [int(id) for id in delete_ids]
bgneal@232 95 except ValueError:
bgneal@232 96 raise Http404
bgneal@232 97
bgneal@386 98 for topic in user.subscriptions.filter(id__in=delete_ids):
bgneal@386 99 user.subscriptions.remove(topic)
bgneal@232 100
bgneal@383 101 return HttpResponseRedirect(reverse("forums-manage_subscriptions"))
bgneal@383 102
bgneal@383 103 page_num = request.GET.get('page', 1)
bgneal@232 104 topics = user.subscriptions.select_related().order_by('-update_date')
bgneal@232 105 paginator = DiggPaginator(topics, 20, body=5, tail=2, margin=3, padding=2)
bgneal@232 106 try:
bgneal@232 107 page_num = int(page_num)
bgneal@232 108 except ValueError:
bgneal@232 109 page_num = 1
bgneal@232 110 try:
bgneal@232 111 page = paginator.page(page_num)
bgneal@232 112 except InvalidPage:
bgneal@232 113 raise Http404
bgneal@232 114
bgneal@232 115 return render_to_response('forums/manage_topics.html', {
bgneal@232 116 'page_title': 'Topic Subscriptions',
bgneal@232 117 'description': 'The forum topics you are currently subscribed to are listed below.',
bgneal@232 118 'page': page,
bgneal@232 119 },
bgneal@232 120 context_instance=RequestContext(request))