Adds options to control the behaviour of urls.

[osqa.git] / forum / views / readers.py

diff --git a/forum/views/readers.py b/forum/views/readers.py
index 53236d506bf78dd18a0a1dd1baa6301351ed58c4..4a839b0be81ef3f073cbb5a4518cbc8a0608a2c3 100644 (file)
--- a/forum/views/readers.py
+++ b/forum/views/readers.py
@@ -2,11 +2,12 @@
 import datetime
 import logging
 from urllib import unquote
 import datetime
 import logging
 from urllib import unquote

-from django.conf import settings as django_settings
+from forum import settings as django_settings

 from django.shortcuts import render_to_response, get_object_or_404
 from django.shortcuts import render_to_response, get_object_or_404

-from django.http import HttpResponseRedirect, HttpResponse, HttpResponseForbidden, Http404
+from django.http import HttpResponseRedirect, HttpResponse, Http404, HttpResponsePermanentRedirect

 from django.core.paginator import Paginator, EmptyPage, InvalidPage
 from django.template import RequestContext
 from django.core.paginator import Paginator, EmptyPage, InvalidPage
 from django.template import RequestContext

+from django import template

 from django.utils.html import *
 from django.utils import simplejson
 from django.db.models import Q
 from django.utils.html import *
 from django.utils import simplejson
 from django.db.models import Q


@@ -19,101 +20,172 @@ from django.utils.http import urlquote  as django_urlquote
 from django.template.defaultfilters import slugify
 from django.utils.safestring import mark_safe
 
 from django.template.defaultfilters import slugify
 from django.utils.safestring import mark_safe
 

-from forum.utils.html import sanitize_html
-from markdown2 import Markdown
+from forum.utils.html import sanitize_html, hyperlink

 from forum.utils.diff import textDiff as htmldiff
 from forum.utils.diff import textDiff as htmldiff

+from forum.utils import pagination

 from forum.forms import *
 from forum.models import *
 from forum.forms import *
 from forum.models import *

-from forum.const import *
-from forum.utils.forms import get_next_url
-from forum.models.question import question_view
+from forum.forms import get_next_url
+from forum.actions import QuestionViewAction
+from forum.http_responses import HttpResponseUnauthorized
+from forum.feed import RssQuestionFeed, RssAnswerFeed

 import decorators
 
 import decorators
 

-# used in index page
-#refactor - move these numbers somewhere?
-INDEX_PAGE_SIZE = 30
-INDEX_AWARD_SIZE = 15
-INDEX_TAGS_SIZE = 25
-# used in tags list
-DEFAULT_PAGE_SIZE = 60
-# used in questions
-QUESTIONS_PAGE_SIZE = 30
-# used in answers
-ANSWERS_PAGE_SIZE = 10
-
-markdowner = Markdown(html4tags=True)
-
-#system to display main content
-def _get_tags_cache_json():#service routine used by views requiring tag list in the javascript space
-    """returns list of all tags in json format
-    no caching yet, actually
-    """
-    tags = Tag.objects.filter(deleted=False).all()
-    tags_list = []
-    for tag in tags:
-        dic = {'n': tag.name, 'c': tag.used_count}
-        tags_list.append(dic)
-    tags = simplejson.dumps(tags_list)
-    return tags
+class QuestionListPaginatorContext(pagination.PaginatorContext):
+    def __init__(self, id='QUESTIONS_LIST', prefix='', default_pagesize=30):
+        super (QuestionListPaginatorContext, self).__init__(id, sort_methods=(
+            (_('active'), pagination.SimpleSort(_('active'), '-last_activity_at', _("most recently updated questions"))),
+            (_('newest'), pagination.SimpleSort(_('newest'), '-added_at', _("most recently asked questions"))),
+            (_('hottest'), pagination.SimpleSort(_('hottest'), '-extra_count', _("hottest questions"))),
+            (_('mostvoted'), pagination.SimpleSort(_('most voted'), '-score', _("most voted questions"))),
+        ), pagesizes=(15, 30, 50), default_pagesize=default_pagesize, prefix=prefix)
+
+class AnswerPaginatorContext(pagination.PaginatorContext):
+    def __init__(self, id='ANSWER_LIST', prefix='', default_pagesize=10):
+        super (AnswerPaginatorContext, self).__init__(id, sort_methods=(
+            (_('oldest'), pagination.SimpleSort(_('oldest answers'), ('-marked', 'added_at'), _("oldest answers will be shown first"))),
+            (_('newest'), pagination.SimpleSort(_('newest answers'), ('-marked', '-added_at'), _("newest answers will be shown first"))),
+            (_('votes'), pagination.SimpleSort(_('popular answers'), ('-marked', '-score', 'added_at'), _("most voted answers will be shown first"))),
+        ), default_sort=_('votes'), pagesizes=(5, 10, 20), default_pagesize=default_pagesize, prefix=prefix)
+
+class TagPaginatorContext(pagination.PaginatorContext):
+    def __init__(self):
+        super (TagPaginatorContext, self).__init__('TAG_LIST', sort_methods=(
+            (_('name'), pagination.SimpleSort(_('by name'), 'name', _("sorted alphabetically"))),
+            (_('used'), pagination.SimpleSort(_('by popularity'), '-used_count', _("sorted by frequency of tag use"))),
+        ), default_sort=_('used'), pagesizes=(30, 60, 120))
+    
+
+def feed(request):
+    return RssQuestionFeed(
+                request,
+                Question.objects.filter_state(deleted=False).order_by('-last_activity_at'),
+                settings.APP_TITLE + _(' - ')+ _('latest questions'),
+                settings.APP_DESCRIPTION)(request)
+

 
 @decorators.render('index.html')
 def index(request):
 
 @decorators.render('index.html')
 def index(request):

-    return question_list(request, Question.objects.all(), sort='latest', base_path=reverse('questions'))
-
-@decorators.render('questions.html', 'unanswered')
+    paginator_context = QuestionListPaginatorContext()
+    paginator_context.base_path = reverse('questions')
+    return question_list(request,
+                         Question.objects.all(),
+                         sort=request.utils.set_sort_method('active'),
+                         base_path=reverse('questions'),
+                         feed_url=reverse('latest_questions_feed'),
+                         paginator_context=paginator_context)
+
+@decorators.render('questions.html', 'unanswered', _('unanswered'), weight=400)

 def unanswered(request):
 def unanswered(request):

-    return question_list(request, Question.objects.filter(answer_accepted=False),
-                         _('Open questions without an accepted answer'))
-
-@decorators.render('questions.html', 'questions')
+    return question_list(request,
+                         Question.objects.filter(extra_ref=None),
+                         _('open questions without an accepted answer'),
+                         request.utils.set_sort_method('active'),
+                         None,
+                         _("Unanswered Questions"))
+
+@decorators.render('questions.html', 'questions', _('questions'), weight=0)

 def questions(request):
 def questions(request):

-    return question_list(request, Question.objects.all())
+    return question_list(request, Question.objects.all(), _('questions'), request.utils.set_sort_method('active'))

 
 @decorators.render('questions.html')
 def tag(request, tag):
 
 @decorators.render('questions.html')
 def tag(request, tag):

-    return question_list(request, Question.objects.filter(tags__name=unquote(tag)),
-                        mark_safe(_('Questions tagged <span class="tag">%(tag)s</span>') % {'tag': tag}))
+    return question_list(request,
+                         Question.objects.filter(tags__name=unquote(tag)),
+                         mark_safe(_('questions tagged <span class="tag">%(tag)s</span>') % {'tag': tag}),
+                         request.utils.set_sort_method('active'),
+                         None,
+                         mark_safe(_('Questions Tagged With %(tag)s') % {'tag': tag}),
+                         False)
+
+@decorators.render('questions.html', 'questions', tabbed=False)
+def user_questions(request, mode, user, slug):
+    user = get_object_or_404(User, id=user)
+
+    if mode == _('asked-by'):
+        questions = Question.objects.filter(author=user)
+        description = _("Questions asked by %s")
+    elif mode == _('answered-by'):
+        questions = Question.objects.filter(children__author=user, children__node_type='answer').distinct()
+        description = _("Questions answered by %s")
+    elif mode == _('subscribed-by'):
+        if not (request.user.is_superuser or request.user == user):
+            return HttpResponseUnauthorized(request)
+        questions = user.subscriptions
+
+        if request.user == user:
+            description = _("Questions you subscribed %s")
+        else:
+            description = _("Questions subscribed by %s")
+    else:
+        raise Http404

 
 

-@decorators.list('questions', QUESTIONS_PAGE_SIZE)
-def question_list(request, initial, list_description=_('questions'), sort=None, base_path=None):
-    pagesize = request.utils.page_size(QUESTIONS_PAGE_SIZE)
-    page = int(request.GET.get('page', 1))

 
 

-    questions = initial.filter(deleted=False)
+    return question_list(request, questions,
+                         mark_safe(description % hyperlink(user.get_profile_url(), user.username)),
+                         request.utils.set_sort_method('active'),
+                         page_title=description % user.username)

 
 

-    if request.user.is_authenticated():
-        questions = questions.filter(
-                ~Q(tags__id__in=request.user.marked_tags.filter(user_selections__reason='bad')))
+def question_list(request, initial,
+                  list_description=_('questions'),
+                  sort=None,
+                  base_path=None,
+                  page_title=_("All Questions"),
+                  allowIgnoreTags=True,
+                  feed_url=None,
+                  paginator_context=None):

 
 

-    if sort is None:
-        sort = request.utils.sort_method('latest')
-    else:
-        request.utils.set_sort_method(sort)
-    
-    view_dic = {"latest":"-added_at", "active":"-last_activity_at", "hottest":"-answer_count", "mostvoted":"-score" }
+    questions = initial.filter_state(deleted=False)
+
+    if request.user.is_authenticated() and allowIgnoreTags:
+        questions = questions.filter(~Q(tags__id__in = request.user.marked_tags.filter(user_selections__reason = 'bad')))
+
+    if page_title is None:
+        page_title = _("Questions")
+
+    if request.GET.get('type', None) == 'rss':
+        questions = questions.order_by('-added_at')
+        return RssQuestionFeed(request, questions, page_title, list_description)(request)
+
+    keywords =  ""
+    if request.GET.get("q"):
+        keywords = request.GET.get("q").strip()

 
 

-    questions=questions.order_by(view_dic.get(sort, '-added_at'))
+    answer_count = Answer.objects.filter_state(deleted=False).filter(parent__in=questions).count()
+    answer_description = _("answers")

 
 

-    return {
-        "questions" : questions,
-        "questions_count" : questions.count(),
-        "tags_autocomplete" : _get_tags_cache_json(),
-        "list_description": list_description,
-        "base_path" : base_path,
-        }
+    if not feed_url:
+        req_params = "&".join(["%s=%s" % (k, v) for k, v in request.GET.items() if not k in (_('page'), _('pagesize'), _('sort'))])
+        if req_params:
+            req_params = '&' + req_params
+
+        feed_url = mark_safe(request.path + "?type=rss" + req_params)
+
+    return pagination.paginated(request, ('questions', paginator_context or QuestionListPaginatorContext()), {
+    "questions" : questions,
+    "questions_count" : questions.count(),
+    "answer_count" : answer_count,
+    "keywords" : keywords,
+    "list_description": list_description,
+    "answer_description": answer_description,
+    "base_path" : base_path,
+    "page_title" : page_title,
+    "tab" : "questions",
+    'feed_url': feed_url,
+    })

 
 
 def search(request):
     if request.method == "GET" and "q" in request.GET:
         keywords = request.GET.get("q")
         search_type = request.GET.get("t")
 
 
 def search(request):
     if request.method == "GET" and "q" in request.GET:
         keywords = request.GET.get("q")
         search_type = request.GET.get("t")

-        
+

         if not keywords:
             return HttpResponseRedirect(reverse(index))
         if search_type == 'tag':
         if not keywords:
             return HttpResponseRedirect(reverse(index))
         if search_type == 'tag':

-            return HttpResponseRedirect(reverse('tags') + '?q=%s' % (keywords.strip()))
+            return HttpResponseRedirect(reverse('tags') + '?q=%s' % urlquote(keywords.strip()))

         elif search_type == "user":
         elif search_type == "user":

-            return HttpResponseRedirect(reverse('users') + '?q=%s' % (keywords.strip()))
+            return HttpResponseRedirect(reverse('users') + '?q=%s' % urlquote(keywords.strip()))

         elif search_type == "question":
             return question_search(request, keywords)
     else:
         elif search_type == "question":
             return question_search(request, keywords)
     else:


@@ -121,106 +193,127 @@ def search(request):
 
 @decorators.render('questions.html')
 def question_search(request, keywords):
 
 @decorators.render('questions.html')
 def question_search(request, keywords):

-    def question_search(keywords, orderby):
-        return Question.objects.filter(Q(title__icontains=keywords) | Q(html__icontains=keywords))
+    can_rank, initial = Question.objects.search(keywords)

 
 

-    from forum.modules import get_handler
+    if can_rank:
+        paginator_context = QuestionListPaginatorContext()
+        paginator_context.sort_methods[_('ranking')] = pagination.SimpleSort(_('relevance'), '-ranking', _("most relevant questions"))
+        paginator_context.force_sort = _('ranking')
+    else:
+        paginator_context = None

 
 

-    question_search = get_handler('question_search', question_search)
-    initial = question_search(keywords)
+    return question_list(request, initial,
+                         _("questions matching '%(keywords)s'") % {'keywords': keywords},
+                         False,
+                         "%s?t=question&q=%s" % (reverse('search'),django_urlquote(keywords)),
+                         _("questions matching '%(keywords)s'") % {'keywords': keywords},
+                         paginator_context=paginator_context)

 
 

-    return question_list(request, initial, _("questions matching '%(keywords)s'") % {'keywords': keywords},
-            base_path="%s?t=question&q=%s" % (reverse('search'), django_urlquote(keywords)))
-    

 
 

-def tags(request):#view showing a listing of available tags - plain list
+@decorators.render('tags.html', 'tags', _('tags'), weight=100)
+def tags(request):

     stag = ""
     stag = ""

-    is_paginated = True
-    sortby = request.GET.get('sort', 'used')
-    try:
-        page = int(request.GET.get('page', '1'))
-    except ValueError:
-        page = 1
+    tags = Tag.active.all()

 
     if request.method == "GET":
         stag = request.GET.get("q", "").strip()
 
     if request.method == "GET":
         stag = request.GET.get("q", "").strip()

-        if stag != '':
-            objects_list = Paginator(Tag.objects.filter(deleted=False).exclude(used_count=0).extra(where=['name like %s'], params=['%' + stag + '%']), DEFAULT_PAGE_SIZE)
-        else:
-            if sortby == "name":
-                objects_list = Paginator(Tag.objects.all().filter(deleted=False).exclude(used_count=0).order_by("name"), DEFAULT_PAGE_SIZE)
-            else:
-                objects_list = Paginator(Tag.objects.all().filter(deleted=False).exclude(used_count=0).order_by("-used_count"), DEFAULT_PAGE_SIZE)
+        if stag:
+            tags = tags.filter(name__contains=stag)

 
 

-    try:
-        tags = objects_list.page(page)
-    except (EmptyPage, InvalidPage):
-        tags = objects_list.page(objects_list.num_pages)
-
-    return render_to_response('tags.html', {
-                                            "tags" : tags,
-                                            "stag" : stag,
-                                            "tab_id" : sortby,
-                                            "keywords" : stag,
-                                            "context" : {
-                                                'is_paginated' : is_paginated,
-                                                'pages': objects_list.num_pages,
-                                                'page': page,
-                                                'has_previous': tags.has_previous(),
-                                                'has_next': tags.has_next(),
-                                                'previous': tags.previous_page_number(),
-                                                'next': tags.next_page_number(),
-                                                'base_url' : reverse('tags') + '?sort=%s&' % sortby
-                                            }
-                                }, context_instance=RequestContext(request))
-
-def get_answer_sort_order(request):
-    view_dic = {"latest":"-added_at", "oldest":"added_at", "votes":"-score" }
-
-    view_id = request.GET.get('sort', request.session.get('answer_sort_order', None))
-
-    if view_id is None or not view_id in view_dic:
-        view_id = "votes"
-
-    if view_id != request.session.get('answer_sort_order', None):
-        request.session['answer_sort_order'] = view_id
-
-    return (view_id, view_dic[view_id])
+    return pagination.paginated(request, ('tags', TagPaginatorContext()), {
+        "tags" : tags,
+        "stag" : stag,
+        "keywords" : stag
+    })

 
 def update_question_view_times(request, question):
 
 def update_question_view_times(request, question):

-    if not 'question_view_times' in request.session:
-        request.session['question_view_times'] = {}
+    if not 'last_seen_in_question' in request.session:
+        request.session['last_seen_in_question'] = {}
+
+    last_seen = request.session['last_seen_in_question'].get(question.id, None)
+
+    if (not last_seen) or last_seen < question.last_activity_at:
+        QuestionViewAction(question, request.user, ip=request.META['REMOTE_ADDR']).save()
+        request.session['last_seen_in_question'][question.id] = datetime.datetime.now()
+
+    request.session['last_seen_in_question'][question.id] = datetime.datetime.now()
+
+def match_question_slug(slug):
+    slug_words = slug.split('-')
+    qs = Question.objects.filter(title__istartswith=slug_words[0])

 
 

-    last_seen = request.session['question_view_times'].get(question.id,None)
-    updated_when, updated_who = question.get_last_update_info()
+    for q in qs:
+        if slug == urlquote(slugify(q.title)):
+            return q

 
 

-    if not last_seen or last_seen < updated_when:
-        question.view_count = question.view_count + 1
-        question_view.send(sender=update_question_view_times, instance=question, user=request.user)
+    return None

 
 

-    request.session['question_view_times'][question.id] = datetime.datetime.now()
+def answer_redirect(request, answer):
+    pc = AnswerPaginatorContext()

 
 

-def question(request, id, slug):
-    question = get_object_or_404(Question, id=id)
+    sort = pc.sort(request)

 
 

-    if slug != urlquote(slugify(question.title)):
-        return HttpResponseRedirect(question.get_absolute_url())
+    if sort == _('oldest'):
+        filter = Q(added_at__lt=answer.added_at)
+    elif sort == _('newest'):
+        filter = Q(added_at__gt=answer.added_at)
+    elif sort == _('votes'):
+        filter = Q(score__gt=answer.score) | Q(score=answer.score, added_at__lt=answer.added_at)
+    else:
+        raise Http404()
+        
+    count = answer.question.answers.filter(Q(marked=True) | filter).count()
+    pagesize = pc.pagesize(request)
+
+    page = count / pagesize
+    
+    if count % pagesize:
+        page += 1
+        
+    if page == 0:
+        page = 1

 
 

-    page = int(request.GET.get('page', 1))
-    view_id, order_by = get_answer_sort_order(request)
+    return HttpResponsePermanentRedirect("%s?%s=%s#%s" % (
+        answer.question.get_absolute_url(), _('page'), page, answer.id))
+
+@decorators.render("question.html", 'questions')
+def question(request, id, slug=None, answer=None):
+    try:
+        question = Question.objects.get(id=id)
+    except:
+        if slug:
+            question = match_question_slug(slug)
+            if question is not None:
+                return HttpResponseRedirect(question.get_absolute_url())

 
 

-    if question.deleted and not request.user.can_view_deleted_post(question):
+        raise Http404()
+
+    if question.nis.deleted and not request.user.can_view_deleted_post(question):

         raise Http404
 
         raise Http404
 

-    answer_form = AnswerForm(question,request.user)
-    answers = request.user.get_visible_answers(question)
+    if request.GET.get('type', None) == 'rss':
+        return RssAnswerFeed(request, question, include_comments=request.GET.get('comments', None) == 'yes')(request)
+
+    if answer:
+        answer = get_object_or_404(Answer, id=answer)
+
+        if (question.nis.deleted and not request.user.can_view_deleted_post(question)) or answer.question != question:
+            raise Http404

 
 

-    if answers is not None:
-        answers = [a for a in answers.order_by("-accepted", order_by)
-                   if not a.deleted or a.author == request.user]
+        if answer.marked:
+            return HttpResponsePermanentRedirect(question.get_absolute_url())

 
 

-    objects_list = Paginator(answers, ANSWERS_PAGE_SIZE)
-    page_objects = objects_list.page(page)
+        return answer_redirect(request, answer)
+
+    if settings.FORCE_SINGLE_URL and ((not slug) or (slug != slugify(question.title))):
+        return HttpResponsePermanentRedirect(question.get_absolute_url())
+
+    if request.POST:
+        answer_form = AnswerForm(question, request.POST)
+    else:
+        answer_form = AnswerForm(question)
+
+    answers = request.user.get_visible_answers(question)

 
     update_question_view_times(request, question)
 
 
     update_question_view_times(request, question)
 


@@ -232,73 +325,45 @@ def question(request, id, slug):
     else:
         subscription = False
 
     else:
         subscription = False
 

-    return render_to_response('question.html', {
-        "question" : question,
-        "answer" : answer_form,
-        "answers" : page_objects.object_list,
-        "tags" : question.tags.all(),
-        "tab_id" : view_id,
-        "similar_questions" : question.get_related_questions(),
-        "subscription": subscription,
-        "context" : {
-            'is_paginated' : True,
-            'pages': objects_list.num_pages,
-            'page': page,
-            'has_previous': page_objects.has_previous(),
-            'has_next': page_objects.has_next(),
-            'previous': page_objects.previous_page_number(),
-            'next': page_objects.next_page_number(),
-            'base_url' : request.path + '?sort=%s&' % view_id,
-            'extend_url' : "#sort-top"
-        }
-        }, context_instance=RequestContext(request))
-
-
-QUESTION_REVISION_TEMPLATE = ('<h1>%(title)s</h1>\n'
-                              '<div class="text">%(html)s</div>\n'
-                              '<div class="tags">%(tags)s</div>')
-def question_revisions(request, id):
-    post = get_object_or_404(Question, id=id)
-    revisions = list(post.revisions.all())
-    revisions.reverse()
+    return pagination.paginated(request, ('answers', AnswerPaginatorContext()), {
+    "question" : question,
+    "answer" : answer_form,
+    "answers" : answers,
+    "similar_questions" : question.get_related_questions(),
+    "subscription": subscription,
+    })
+
+
+REVISION_TEMPLATE = template.loader.get_template('node/revision.html')
+
+def revisions(request, id):
+    post = get_object_or_404(Node, id=id).leaf
+    revisions = list(post.revisions.order_by('revised_at'))
+    rev_ctx = []
+

     for i, revision in enumerate(revisions):
     for i, revision in enumerate(revisions):

-        revision.html = QUESTION_REVISION_TEMPLATE % {
-            'title': revision.title,
-            'html': sanitize_html(markdowner.convert(revision.text)),
-            'tags': ' '.join(['<a class="post-tag">%s</a>' % tag
-                              for tag in revision.tagnames.split(' ')]),
-        }
+        rev_ctx.append(dict(inst=revision, html=template.loader.get_template('node/revision.html').render(template.Context({
+        'title': revision.title,
+        'html': revision.html,
+        'tags': revision.tagname_list(),
+        }))))
+

         if i > 0:
         if i > 0:

-            revisions[i].diff = htmldiff(revisions[i-1].html, revision.html)
+            rev_ctx[i]['diff'] = mark_safe(htmldiff(rev_ctx[i-1]['html'], rev_ctx[i]['html']))

         else:
         else:

-            revisions[i].diff = QUESTION_REVISION_TEMPLATE % {
-                'title': revisions[0].title,
-                'html': sanitize_html(markdowner.convert(revisions[0].text)),
-                'tags': ' '.join(['<a class="post-tag">%s</a>' % tag
-                                 for tag in revisions[0].tagnames.split(' ')]),
-            }
-            revisions[i].summary = _('initial version') 
-    return render_to_response('revisions_question.html', {
-                              'post': post,
-                              'revisions': revisions,
-                              }, context_instance=RequestContext(request))
-
-ANSWER_REVISION_TEMPLATE = ('<div class="text">%(html)s</div>')
-def answer_revisions(request, id):
-    post = get_object_or_404(Answer, id=id)
-    revisions = list(post.revisions.all())
-    revisions.reverse()
-    for i, revision in enumerate(revisions):
-        revision.html = ANSWER_REVISION_TEMPLATE % {
-            'html': sanitize_html(markdowner.convert(revision.text))
-        }
-        if i > 0:
-            revisions[i].diff = htmldiff(revisions[i-1].html, revision.html)
+            rev_ctx[i]['diff'] = mark_safe(rev_ctx[i]['html'])
+
+        if not (revision.summary):
+            rev_ctx[i]['summary'] = _('Revision n. %(rev_number)d') % {'rev_number': revision.revision}

         else:
         else:

-            revisions[i].diff = revisions[i].text
-            revisions[i].summary = _('initial version')
-    return render_to_response('revisions_answer.html', {
-                              'post': post,
-                              'revisions': revisions,
-                              }, context_instance=RequestContext(request))
+            rev_ctx[i]['summary'] = revision.summary
+
+    rev_ctx.reverse()
+
+    return render_to_response('revisions.html', {
+    'post': post,
+    'revisions': rev_ctx,
+    }, context_instance=RequestContext(request))
+
+