Prevents questions on which the slug comes out empty to enter a redirect loop.

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

diff --git a/forum/views/readers.py b/forum/views/readers.py
index e6afdfe33a2edff99cd91a7addc6195e1209d6c9..6a490876506c59acaf03e944444d7a6acc3a7511 100644 (file)
--- a/forum/views/readers.py
+++ b/forum/views/readers.py
@@ -4,7 +4,7 @@ import logging
 from urllib import unquote
 from forum import settings as django_settings
 from django.shortcuts import render_to_response, get_object_or_404
 from urllib import unquote
 from forum import settings as django_settings
 from django.shortcuts import render_to_response, get_object_or_404

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

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


@@ -20,169 +20,217 @@ 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 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.utils.forms import get_next_url
+from forum.forms import get_next_url

 from forum.actions import QuestionViewAction
 from forum.actions import QuestionViewAction

-from forum.modules.decorators import decoratable
+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
+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='active', 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(extra_ref=None),
-                         _('Open questions without an accepted answer'),
-                         'active', None, _("Unanswered questions"))
-
-@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(), _('questions'), 'active')
+    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}),
-                        'active',
-                        None,
-                        mark_safe(_('Questions tagged %(tag)s') % {'tag': tag}),
-                        False)
+    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, page_title=None, allowIgnoreTags=True):
-    questions = initial.filter(deleted=None, in_moderation=None)
+    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)

 
 

-    test = request.user.marked_tags
+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):
+
+    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 request.user.is_authenticated() and allowIgnoreTags:
         questions = questions.filter(~Q(tags__id__in = request.user.marked_tags.filter(user_selections__reason = 'bad')))
 

-    if sort is not False:
-        if sort is None:
-            sort = request.utils.sort_method('latest')
-        else:
-            request.utils.set_sort_method(sort)
+    if page_title is None:
+        page_title = _("Questions")

 
 

-        view_dic = {"latest":"-added_at", "active":"-last_activity_at", "hottest":"-extra_count", "mostvoted":"-score" }
+    if request.GET.get('type', None) == 'rss':
+        questions = questions.order_by('-added_at')
+        return RssQuestionFeed(request, questions, page_title, list_description)(request)

 
 

-        questions=questions.order_by(view_dic.get(sort, '-added_at'))
+    keywords =  ""
+    if request.GET.get("q"):
+        keywords = request.GET.get("q").strip()

 
 

-    if page_title is None:
-        page_title = _("Questions")
+    answer_count = Answer.objects.filter_state(deleted=False).filter(parent__in=questions).count()
+    answer_description = _("answers")
+
+    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

 
 

-    return {
-        "questions" : questions,
-        "questions_count" : questions.count(),
-        #"tags_autocomplete" : _get_tags_cache_json(),
-        "list_description": list_description,
-        "base_path" : base_path,
-        "page_title" : page_title,
-        }
+        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:
         return render_to_response("search.html", context_instance=RequestContext(request))
 
         elif search_type == "question":
             return question_search(request, keywords)
     else:
         return render_to_response("search.html", context_instance=RequestContext(request))
 

-@decoratable
-def do_question_search(keywords):
-    return Question.objects.filter(Q(title__icontains=keywords) | Q(body__icontains=keywords))
-

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

-    initial = do_question_search(keywords)
+    can_rank, initial = Question.objects.search(keywords)

 
 

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

 
 

-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):
     if not 'last_seen_in_question' in request.session:
         request.session['last_seen_in_question'] = {}
 
 
 def update_question_view_times(request, question):
     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)
+    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()
 
     if (not last_seen) or last_seen < question.last_activity_at:
         QuestionViewAction(question, request.user, ip=request.META['REMOTE_ADDR']).save()


@@ -192,7 +240,7 @@ def update_question_view_times(request, question):
 
 def match_question_slug(slug):
     slug_words = slug.split('-')
 
 def match_question_slug(slug):
     slug_words = slug.split('-')

-    qs = Question.objects.filter(node_type="question", title__istartswith=slug_words[0])
+    qs = Question.objects.filter(title__istartswith=slug_words[0])

 
     for q in qs:
         if slug == urlquote(slugify(q.title)):
 
     for q in qs:
         if slug == urlquote(slugify(q.title)):


@@ -200,34 +248,72 @@ def match_question_slug(slug):
 
     return None
 
 
     return None
 

-def question(request, id, slug):
+def answer_redirect(request, answer):
+    pc = AnswerPaginatorContext()
+
+    sort = pc.sort(request)
+
+    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
+
+    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='', answer=None):

     try:
     try:

-        question = Question.objects.get(node_type="question", id=id)
+        question = Question.objects.get(id=id)

     except:
     except:

-        question = match_question_slug(slug)
-        if question is not None:
-            return HttpResponsePermanentRedirect(question.get_absolute_url())
-        else:
-            raise Http404()
-
-    if slug != urlquote(slugify(question.title)):
-        return HttpResponsePermanentRedirect(question.get_absolute_url())
+        if slug:
+            question = match_question_slug(slug)
+            if question is not None:
+                return HttpResponseRedirect(question.get_absolute_url())

 
 

-    page = int(request.GET.get('page', 1))
-    view_id, order_by = get_answer_sort_order(request)
+        raise Http404()

 
 

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

         raise Http404
 
         raise Http404
 

-    answer_form = AnswerForm(question)
-    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 answers is not None:
-        answers = [a for a in answers.order_by("-marked", order_by)
-                   if not a.deleted or a.author == request.user]
+        if (question.nis.deleted and not request.user.can_view_deleted_post(question)) or answer.question != question:
+            raise Http404
+
+        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 (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)
 


@@ -239,25 +325,13 @@ 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,
-        "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))
+    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')
 
 
 REVISION_TEMPLATE = template.loader.get_template('node/revision.html')


@@ -265,14 +339,13 @@ 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'))
 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):
     rev_ctx = []
 
     for i, revision in enumerate(revisions):

-        rev_ctx.append(dict(inst=revision, html=REVISION_TEMPLATE.render(template.Context({
-                'title': revision.title,
-                'html': revision.html,
-                'tags': revision.tagname_list(),
+        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:


@@ -284,11 +357,13 @@ def revisions(request, id):
             rev_ctx[i]['summary'] = _('Revision n. %(rev_number)d') % {'rev_number': revision.revision}
         else:
             rev_ctx[i]['summary'] = revision.summary
             rev_ctx[i]['summary'] = _('Revision n. %(rev_number)d') % {'rev_number': revision.revision}
         else:
             rev_ctx[i]['summary'] = revision.summary

-            
+
+    rev_ctx.reverse()
+

     return render_to_response('revisions.html', {
     return render_to_response('revisions.html', {

-                              'post': post,
-                              'revisions': rev_ctx,
-                              }, context_instance=RequestContext(request))
+    'post': post,
+    'revisions': rev_ctx,
+    }, context_instance=RequestContext(request))