Mercurial > public > sg101

annotate gpp/forums/views.py @ 99:10d6182b9f6e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Forums: added error handling to the flagging of posts. Did the same with the comments function too.
author Brian Neal <bgneal@gmail.com>
date Mon, 14 Sep 2009 00:06:08 +0000
parents d0d779dd0832
children eb9f99382476
rev   line source
bgneal@81 1 """
bgneal@81 2 Views for the forums application.
bgneal@81 3 """
bgneal@83 4 from django.contrib.auth.decorators import login_required
bgneal@82 5 from django.http import Http404
bgneal@98 6 from django.http import HttpResponse
bgneal@89 7 from django.http import HttpResponseBadRequest
bgneal@90 8 from django.http import HttpResponseForbidden
bgneal@83 9 from django.http import HttpResponseRedirect
bgneal@83 10 from django.core.urlresolvers import reverse
bgneal@91 11 from django.core.paginator import InvalidPage
bgneal@82 12 from django.shortcuts import get_object_or_404
bgneal@81 13 from django.shortcuts import render_to_response
bgneal@97 14 from django.template.loader import render_to_string
bgneal@81 15 from django.template import RequestContext
bgneal@89 16 from django.views.decorators.http import require_POST
bgneal@81 17
bgneal@90 18 from core.paginator import DiggPaginator
bgneal@98 19 from core.functions import email_admins
bgneal@81 20 from forums.models import Forum
bgneal@83 21 from forums.models import Topic
bgneal@91 22 from forums.models import Post
bgneal@98 23 from forums.models import FlaggedPost
bgneal@83 24 from forums.forms import NewTopicForm
bgneal@86 25 from forums.forms import PostForm
bgneal@81 26
bgneal@90 27 #######################################################################
bgneal@90 28
bgneal@93 29 TOPICS_PER_PAGE = 50
bgneal@90 30 POSTS_PER_PAGE = 2
bgneal@90 31
bgneal@93 32 def create_topic_paginator(topics):
bgneal@93 33 return DiggPaginator(topics, TOPICS_PER_PAGE, body=5, tail=2, margin=3, padding=2)
bgneal@93 34
bgneal@93 35 def create_post_paginator(posts):
bgneal@93 36 return DiggPaginator(posts, POSTS_PER_PAGE, body=5, tail=2, margin=3, padding=2)
bgneal@90 37
bgneal@90 38 #######################################################################
bgneal@81 39
bgneal@81 40 def index(request):
bgneal@82 41 """
bgneal@82 42 This view displays all the forums available, ordered in each category.
bgneal@82 43 """
bgneal@81 44 forums = Forum.objects.all().select_related()
bgneal@81 45 cats = {}
bgneal@81 46 for forum in forums:
bgneal@81 47 cat = cats.setdefault(forum.category.id, {
bgneal@81 48 'cat': forum.category,
bgneal@81 49 'forums': [],
bgneal@81 50 })
bgneal@81 51 cat['forums'].append(forum)
bgneal@81 52
bgneal@81 53 cmpdef = lambda a, b: cmp(a['cat'].position, b['cat'].position)
bgneal@81 54 cats = sorted(cats.values(), cmpdef)
bgneal@81 55
bgneal@81 56 return render_to_response('forums/index.html', {
bgneal@81 57 'cats': cats,
bgneal@81 58 },
bgneal@81 59 context_instance=RequestContext(request))
bgneal@81 60
bgneal@82 61
bgneal@81 62 def forum_index(request, slug):
bgneal@82 63 """
bgneal@82 64 Displays all the topics in a forum.
bgneal@82 65 """
bgneal@82 66 forum = get_object_or_404(Forum, slug=slug)
bgneal@82 67 topics = forum.topics.select_related()
bgneal@93 68 paginator = create_topic_paginator(topics)
bgneal@93 69 page_num = int(request.GET.get('page', 1))
bgneal@93 70 try:
bgneal@93 71 page = paginator.page(page_num)
bgneal@93 72 except InvalidPage:
bgneal@93 73 raise Http404
bgneal@97 74
bgneal@97 75 # we do this for the template since it is rendered twice
bgneal@97 76 page_nav = render_to_string('forums/pagination.html', {'page': page})
bgneal@82 77
bgneal@82 78 return render_to_response('forums/forum_index.html', {
bgneal@82 79 'forum': forum,
bgneal@93 80 'page': page,
bgneal@97 81 'page_nav': page_nav,
bgneal@82 82 },
bgneal@82 83 context_instance=RequestContext(request))
bgneal@82 84
bgneal@82 85
bgneal@82 86 def topic_index(request, id):
bgneal@82 87 """
bgneal@82 88 Displays all the posts in a topic.
bgneal@82 89 """
bgneal@86 90 topic = get_object_or_404(Topic, pk=id)
bgneal@86 91 topic.view_count += 1
bgneal@86 92 topic.save()
bgneal@86 93
bgneal@86 94 posts = topic.posts.select_related()
bgneal@93 95 paginator = create_post_paginator(posts)
bgneal@93 96 page_num = int(request.GET.get('page', 1))
bgneal@90 97 try:
bgneal@90 98 page = paginator.page(page_num)
bgneal@90 99 except InvalidPage:
bgneal@90 100 raise Http404
bgneal@90 101
bgneal@90 102 last_page = page_num == paginator.num_pages
bgneal@86 103
bgneal@97 104 # we do this for the template since it is rendered twice
bgneal@97 105 page_nav = render_to_string('forums/pagination.html', {'page': page})
bgneal@97 106
bgneal@86 107 return render_to_response('forums/topic.html', {
bgneal@86 108 'forum': topic.forum,
bgneal@86 109 'topic': topic,
bgneal@90 110 'page': page,
bgneal@97 111 'page_nav': page_nav,
bgneal@87 112 'last_page': last_page,
bgneal@89 113 'form': PostForm(initial={'topic_id': topic.id}),
bgneal@86 114 },
bgneal@86 115 context_instance=RequestContext(request))
bgneal@83 116
bgneal@83 117
bgneal@83 118 @login_required
bgneal@83 119 def new_topic(request, slug):
bgneal@83 120 """
bgneal@83 121 This view handles the creation of new topics.
bgneal@83 122 """
bgneal@83 123 forum = get_object_or_404(Forum, slug=slug)
bgneal@83 124 if request.method == 'POST':
bgneal@83 125 form = NewTopicForm(request.POST)
bgneal@83 126 if form.is_valid():
bgneal@83 127 topic = form.save(forum, request.user, request.META.get("REMOTE_ADDR"))
bgneal@83 128 return HttpResponseRedirect(reverse('forums-new_topic_thanks',
bgneal@83 129 kwargs={'tid': topic.pk}))
bgneal@83 130 else:
bgneal@83 131 form = NewTopicForm()
bgneal@83 132
bgneal@83 133 return render_to_response('forums/new_topic.html', {
bgneal@83 134 'forum': forum,
bgneal@83 135 'form': form,
bgneal@83 136 },
bgneal@83 137 context_instance=RequestContext(request))
bgneal@83 138
bgneal@83 139
bgneal@83 140 @login_required
bgneal@83 141 def new_topic_thanks(request, tid):
bgneal@83 142 """
bgneal@83 143 This view displays the success page for a newly created topic.
bgneal@83 144 """
bgneal@83 145 topic = get_object_or_404(Topic, pk=tid)
bgneal@83 146 return render_to_response('forums/new_topic_thanks.html', {
bgneal@83 147 'forum': topic.forum,
bgneal@83 148 'topic': topic,
bgneal@83 149 },
bgneal@83 150 context_instance=RequestContext(request))
bgneal@89 151
bgneal@89 152
bgneal@89 153 @require_POST
bgneal@89 154 def quick_reply_ajax(request):
bgneal@89 155 """
bgneal@89 156 This function handles the quick reply to a thread function. This
bgneal@89 157 function is meant to be the target of an AJAX post, and returns
bgneal@89 158 the HTML for the new post, which the client-side script appends
bgneal@89 159 to the document.
bgneal@89 160 """
bgneal@90 161 if not request.user.is_authenticated():
bgneal@90 162 return HttpResponseForbidden()
bgneal@90 163
bgneal@89 164 form = PostForm(request.POST)
bgneal@89 165 if form.is_valid():
bgneal@89 166 post = form.save(request.user, request.META.get("REMOTE_ADDR"))
bgneal@89 167 return render_to_response('forums/display_post.html', {
bgneal@89 168 'post': post,
bgneal@89 169 },
bgneal@89 170 context_instance=RequestContext(request))
bgneal@89 171
bgneal@89 172 return HttpResponseBadRequest();
bgneal@89 173
bgneal@91 174
bgneal@91 175 def goto_post(request, post_id):
bgneal@91 176 """
bgneal@91 177 This function calculates what page a given post is on, then redirects
bgneal@91 178 to that URL. This function is the target of get_absolute_url() for
bgneal@91 179 Post objects.
bgneal@91 180 """
bgneal@91 181 post = get_object_or_404(Post, pk=post_id)
bgneal@91 182 count = post.topic.posts.filter(creation_date__lt=post.creation_date).count()
bgneal@91 183 page = count / POSTS_PER_PAGE + 1
bgneal@91 184 url = reverse('forums-topic_index', kwargs={'id': post.topic.id}) + \
bgneal@91 185 '?page=%s#p%s' % (page, post.id)
bgneal@91 186 return HttpResponseRedirect(url)
bgneal@91 187
bgneal@98 188
bgneal@98 189 @require_POST
bgneal@98 190 def flag_post(request):
bgneal@98 191 """
bgneal@98 192 This function handles the flagging of posts by users. This function should
bgneal@98 193 be the target of an AJAX post.
bgneal@98 194 """
bgneal@98 195 if not request.user.is_authenticated():
bgneal@99 196 return HttpResponseForbidden('Please login or register to flag a post.')
bgneal@98 197
bgneal@98 198 id = request.POST.get('id')
bgneal@98 199 if id is None:
bgneal@98 200 return HttpResponseBadRequest('No post id')
bgneal@98 201
bgneal@98 202 try:
bgneal@98 203 post = Post.objects.get(pk=id)
bgneal@98 204 except Post.DoesNotExist:
bgneal@98 205 return HttpResponseBadRequest('No post with id %s' % id)
bgneal@98 206
bgneal@98 207 flag = FlaggedPost(user=request.user, post=post)
bgneal@98 208 flag.save()
bgneal@98 209 email_admins('A Post Has Been Flagged', """Hello,
bgneal@98 210
bgneal@98 211 A user has flagged a forum post for review.
bgneal@98 212 """)
bgneal@98 213 return HttpResponse('The post was flagged. A moderator will review the post shortly. ' \
bgneal@98 214 'Thanks for helping to improve the discussions on this site.')