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comparison forums/views/subscriptions.py @ 581:ee87ea74d46b

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For Django 1.4, rearranged project structure for new manage.py.
author Brian Neal <bgneal@gmail.com>
date Sat, 05 May 2012 17:10:48 -0500
parents gpp/forums/views/subscriptions.py@82b97697312e
children 4aadaf3bc234
comparison
equal deleted inserted replaced
580:c525f3e0b5d0 581:ee87ea74d46b
1 """This module handles the subscriptions of users to forum topics."""
2 from django.conf import settings
3 from django.contrib.auth.decorators import login_required
4 from django.contrib.sites.models import Site
5 from django.core.paginator import InvalidPage
6 from django.core.urlresolvers import reverse
7 from django.http import HttpResponseRedirect
8 from django.http import Http404
9 from django.template.loader import render_to_string
10 from django.shortcuts import get_object_or_404
11 from django.shortcuts import render_to_response
12 from django.template import RequestContext
13 from django.views.decorators.http import require_POST
14
15 from forums.models import Topic
16 import forums.permissions as perms
17 from core.functions import send_mail
18 from core.paginator import DiggPaginator
19
20
21 def notify_topic_subscribers(post, defer=True):
22 """
23 The argument post is a newly created post. Send out an email
24 notification to all subscribers of the post's parent Topic.
25
26 The defer flag is passed to core.functions.send_mail. If True, the mail is
27 sent on a Celery task. If False, the mail is sent on the caller's thread.
28 """
29 topic = post.topic
30 recipients = topic.subscribers.exclude(id=post.user.id).values_list(
31 'email', flat=True)
32
33 if recipients:
34 site = Site.objects.get_current()
35 subject = "[%s] Topic Reply: %s" % (site.name, topic.name)
36 url_prefix = "http://%s" % site.domain
37 post_url = url_prefix + post.get_absolute_url()
38 unsubscribe_url = url_prefix + reverse("forums-manage_subscriptions")
39 msg = render_to_string("forums/topic_notify_email.txt", {
40 'poster': post.user.username,
41 'topic_name': topic.name,
42 'message': post.body,
43 'post_url': post_url,
44 'unsubscribe_url': unsubscribe_url,
45 })
46 for recipient in recipients:
47 send_mail(subject, msg, settings.DEFAULT_FROM_EMAIL, [recipient],
48 defer=defer)
49
50
51 @login_required
52 @require_POST
53 def subscribe_topic(request, topic_id):
54 """Subscribe the user to the requested topic."""
55 topic = get_object_or_404(Topic.objects.select_related(), id=topic_id)
56 if perms.can_access(topic.forum.category, request.user):
57 topic.subscribers.add(request.user)
58 return HttpResponseRedirect(
59 reverse("forums-subscription_status", args=[topic.id]))
60 raise Http404
61
62
63 @login_required
64 @require_POST
65 def unsubscribe_topic(request, topic_id):
66 """Unsubscribe the user to the requested topic."""
67 topic = get_object_or_404(Topic, id=topic_id)
68 topic.subscribers.remove(request.user)
69 return HttpResponseRedirect(
70 reverse("forums-subscription_status", args=[topic.id]))
71
72
73 @login_required
74 def subscription_status(request, topic_id):
75 """Display the subscription status for the given topic."""
76 topic = get_object_or_404(Topic.objects.select_related(), id=topic_id)
77 is_subscribed = request.user in topic.subscribers.all()
78 return render_to_response('forums/subscription_status.html', {
79 'topic': topic,
80 'is_subscribed': is_subscribed,
81 },
82 context_instance=RequestContext(request))
83
84
85 @login_required
86 def manage_subscriptions(request):
87 """Display a user's topic subscriptions, and allow them to be deleted."""
88
89 user = request.user
90 if request.method == "POST":
91 if request.POST.get('delete_all'):
92 user.subscriptions.clear()
93 else:
94 delete_ids = request.POST.getlist('delete_ids')
95 try:
96 delete_ids = [int(id) for id in delete_ids]
97 except ValueError:
98 raise Http404
99
100 for topic in user.subscriptions.filter(id__in=delete_ids):
101 user.subscriptions.remove(topic)
102
103 return HttpResponseRedirect(reverse("forums-manage_subscriptions"))
104
105 page_num = request.GET.get('page', 1)
106 topics = user.subscriptions.select_related().order_by('-update_date')
107 paginator = DiggPaginator(topics, 20, body=5, tail=2, margin=3, padding=2)
108 try:
109 page_num = int(page_num)
110 except ValueError:
111 page_num = 1
112 try:
113 page = paginator.page(page_num)
114 except InvalidPage:
115 raise Http404
116
117 return render_to_response('forums/manage_topics.html', {
118 'page_title': 'Topic Subscriptions',
119 'description': 'The forum topics you are currently subscribed to are listed below.',
120 'page': page,
121 },
122 context_instance=RequestContext(request))