finished splitting views/content.py, some new bugs: html wont validate, image upload broken

12 files changed, 648 insertions, 594 deletions

diff --git a/PENDING b/PENDING
index 0f053357..9d2f00ee 100644
--- a/PENDING
+++ b/PENDING
@@ -4,7 +4,6 @@ new features (go to law school, get a job, do something real)
 Just a joke - pick yourself a task and work on it.
 
 ==Refactoring==
-* (see note 1) analyze and split /views/content.py - Evgeny
 * analyze and split models.py --> models/
 * create forum/modules directory
 * make modules load into the forum app like they
diff --git a/forum/skins/default/media/js/com.cnprog.utils.js b/forum/skins/default/media/js/com.cnprog.utils.js
index 93083288..3f7720c1 100644
--- a/forum/skins/default/media/js/com.cnprog.utils.js
+++ b/forum/skins/default/media/js/com.cnprog.utils.js
@@ -41,7 +41,7 @@ var notify = function() {
 
 function appendLoader(containerSelector) {
     $(containerSelector).append('<img class="ajax-loader" ' +
-        'src="mediaUrl("media/images/indicator.gif")" title="' +
+        'src="' + mediaUrl("media/images/indicator.gif") + '" title="' +
         $.i18n._('loading...') +
         '" alt="' +
         $.i18n._('loading...') +
diff --git a/forum/skins/default/media/js/wmd/wmd.js b/forum/skins/default/media/js/wmd/wmd.js
index 9888cda0..b5f1c9e0 100644
--- a/forum/skins/default/media/js/wmd/wmd.js
+++ b/forum/skins/default/media/js/wmd/wmd.js
@@ -54,7 +54,7 @@ Attacklab.wmdBase = function(){
 	var uploadImageHTML ="<div>" + $.i18n._('upload image') + "</div>" + 
         '<input type="file" name="file-upload" id="file-upload" size="26" '+
         'onchange="return ajaxFileUpload($("#image-url"));"/><br>' + 
-        '<img id="loading" src="mediaUrl("media/images/indicator.gif")" style="display:none;"/>';
+        '<img id="loading" src="' + mediaUrl("media/images/indicator.gif") + '" style="display:none;"/>';
     
 	// The default text that appears in the dialog input box when entering
 	// links.
diff --git a/forum/skins/default/templates/base.html b/forum/skins/default/templates/base.html
index 9033b0c9..3a1848ef 100755
--- a/forum/skins/default/templates/base.html
+++ b/forum/skins/default/templates/base.html
@@ -18,9 +18,11 @@
         <script src="http://www.google.com/jsapi" type="text/javascript"></script>
         <script type="text/javascript">google.load("jquery", "1.2.6");</script>
         <script type="text/javascript">
+        /* <![CDATA[ */
             var i18nLang = '{{settings.LANGUAGE_CODE}}';
             var scriptUrl = '/{{settings.FORUM_SCRIPT_ALIAS}}'
             var osqaSkin = '{{settings.OSQA_SKIN}}';
+        /* ]] */
         </script>
         <script type='text/javascript' src='{% media  "/media/js/com.cnprog.i18n.js" %}'></script>
         <script type='text/javascript' src='{% media  "/media/js/jquery.i18n.js" %}'></script>
@@ -30,10 +32,12 @@
             body { margin-top:2.4em; }
         </style>
         <script type="text/javascript">
+        /* <![CDATA[ */
             $(document).ready(function() {
                 $('#validate_email_alert').click(function(){notify.close(true)})
                 notify.show();
             });
+        /* ]] */
         </script>
         {% endif %}
       
diff --git a/forum/urls.py b/forum/urls.py
index f5cc561f..a045b027 100644
--- a/forum/urls.py
+++ b/forum/urls.py
@@ -17,47 +17,49 @@ sitemaps = {
 
 APP_PATH = os.path.dirname(__file__)
 urlpatterns = patterns('',
-    url(r'^$', app.content.index, name='index'),
-    url(r'^sitemap.xml$', 'django.contrib.sitemaps.views.sitemap', {'sitemaps': sitemaps}),
+    url(r'^$', app.readers.index, name='index'),
+    url(r'^sitemap.xml$', 'django.contrib.sitemaps.views.sitemap', {'sitemaps': sitemaps}, name='sitemap'),
     #(r'^favicon\.ico$', 'django.views.generic.simple.redirect_to', {'url': '/media/images/favicon.ico'}),
     #(r'^favicon\.gif$', 'django.views.generic.simple.redirect_to', {'url': '/media/images/favicon.gif'}),
-    (r'^m/(?P<path>.*)$', 'django.views.static.serve',
-        {'document_root': os.path.join(APP_PATH,'skins').replace('\\','/')}
+    url(r'^m/(?P<path>.*)$', 'django.views.static.serve',
+        {'document_root': os.path.join(APP_PATH,'skins').replace('\\','/')},
+        name='osqa_media',
     ),
-    (r'^%s(?P<path>.*)$' % _('upfiles/'), 'django.views.static.serve',
-        {'document_root': os.path.join(APP_PATH,'upfiles').replace('\\','/')}
+    url(r'^%s(?P<path>.*)$' % _('upfiles/'), 'django.views.static.serve',
+        {'document_root': os.path.join(APP_PATH,'upfiles').replace('\\','/')},
+        name='uploaded_file',
     ),
-    (r'^%s/$' % _('signin/'), 'django_authopenid.views.signin'),
+    url(r'^%s/$' % _('signin/'), 'django_authopenid.views.signin', name='signin'),
     url(r'^%s$' % _('about/'), app.meta.about, name='about'),
     url(r'^%s$' % _('faq/'), app.meta.faq, name='faq'),
     url(r'^%s$' % _('privacy/'), app.meta.privacy, name='privacy'),
     url(r'^%s$' % _('logout/'), app.meta.logout, name='logout'),
-    url(r'^%s(?P<id>\d+)/%s$' % (_('answers/'), _('comments/')), app.content.answer_comments, name='answer_comments'),
-    url(r'^%s(?P<id>\d+)/%s$' % (_('answers/'), _('edit/')), app.content.edit_answer, name='edit_answer'),
-    url(r'^%s(?P<id>\d+)/%s$' % (_('answers/'), _('revisions/')), app.content.answer_revisions, name='answer_revisions'),
-    url(r'^%s$' % _('questions/'), app.content.questions, name='questions'),
-    url(r'^%s%s$' % (_('questions/'), _('ask/')), app.content.ask, name='ask'),
-    url(r'^%s%s$' % (_('questions/'), _('unanswered/')), app.content.unanswered, name='unanswered'),
-    url(r'^%s(?P<id>\d+)/%s$' % (_('questions/'), _('edit/')), app.content.edit_question, name='edit_question'),
-    url(r'^%s(?P<id>\d+)/%s$' % (_('questions/'), _('close/')), app.content.close, name='close'),
-    url(r'^%s(?P<id>\d+)/%s$' % (_('questions/'), _('reopen/')), app.content.reopen, name='reopen'),
-    url(r'^%s(?P<id>\d+)/%s$' % (_('questions/'), _('answer/')), app.content.answer, name='answer'),
+    url(r'^%s(?P<id>\d+)/%s$' % (_('answers/'), _('comments/')), app.writers.answer_comments, name='answer_comments'),
+    url(r'^%s(?P<id>\d+)/%s$' % (_('answers/'), _('edit/')), app.writers.edit_answer, name='edit_answer'),
+    url(r'^%s(?P<id>\d+)/%s$' % (_('answers/'), _('revisions/')), app.readers.answer_revisions, name='answer_revisions'),
+    url(r'^%s$' % _('questions/'), app.readers.questions, name='questions'),
+    url(r'^%s%s$' % (_('questions/'), _('ask/')), app.writers.ask, name='ask'),
+    url(r'^%s%s$' % (_('questions/'), _('unanswered/')), app.readers.unanswered, name='unanswered'),
+    url(r'^%s(?P<id>\d+)/%s$' % (_('questions/'), _('edit/')), app.writers.edit_question, name='edit_question'),
+    url(r'^%s(?P<id>\d+)/%s$' % (_('questions/'), _('close/')), app.commands.close, name='close'),
+    url(r'^%s(?P<id>\d+)/%s$' % (_('questions/'), _('reopen/')), app.commands.reopen, name='reopen'),
+    url(r'^%s(?P<id>\d+)/%s$' % (_('questions/'), _('answer/')), app.writers.answer, name='answer'),
     url(r'^%s(?P<id>\d+)/%s$' % (_('questions/'), _('vote/')), app.commands.vote, name='vote'),
-    url(r'^%s(?P<id>\d+)/%s$' % (_('questions/'), _('revisions/')), app.content.question_revisions, name='question_revisions'),
-    url(r'^%s(?P<id>\d+)/%s$' % (_('questions/'), _('comments/')), app.content.question_comments, name='question_comments'),
+    url(r'^%s(?P<id>\d+)/%s$' % (_('questions/'), _('revisions/')), app.readers.question_revisions, name='question_revisions'),
+    url(r'^%s(?P<id>\d+)/%s$' % (_('questions/'), _('comments/')), app.writers.question_comments, name='question_comments'),
     url(r'^%s$' % _('command/'), app.commands.ajax_command, name='call_ajax'),
 
     url(r'^%s(?P<object_id>\d+)/%s(?P<comment_id>\d+)/%s$' % (_('questions/'), _('comments/'),_('delete/')), \
-                                                app.content.delete_comment, kwargs={'commented_object_type':'question'},\
+                                                app.writers.delete_comment, kwargs={'commented_object_type':'question'},\
                                                 name='delete_question_comment'),
 
     url(r'^%s(?P<object_id>\d+)/%s(?P<comment_id>\d+)/%s$' % (_('answers/'), _('comments/'),_('delete/')), \
-                                                app.content.delete_comment, kwargs={'commented_object_type':'answer'}, \
+                                                app.writers.delete_comment, kwargs={'commented_object_type':'answer'}, \
                                                 name='delete_answer_comment'), \
     #place general question item in the end of other operations
-    url(r'^%s(?P<id>\d+)/' % _('question/'), app.content.question, name='question'),
-    url(r'^%s$' % _('tags/'), app.content.tags, name='tags'),
-    url(r'^%s(?P<tag>[^/]+)/$' % _('tags/'), app.content.tag, name='tag_questions'),
+    url(r'^%s(?P<id>\d+)/' % _('question/'), app.readers.question, name='question'),
+    url(r'^%s$' % _('tags/'), app.readers.tags, name='tags'),
+    url(r'^%s(?P<tag>[^/]+)/$' % _('tags/'), app.readers.tag, name='tag_questions'),
 
     url(r'^%s%s(?P<tag>[^/]+)/$' % (_('mark-tag/'),_('interesting/')), app.commands.mark_tag, \
                                 kwargs={'reason':'good','action':'add'}, \
@@ -77,15 +79,15 @@ urlpatterns = patterns('',
     url(r'^%s(?P<id>\d+)//*' % _('users/'), app.users.user, name='user'),
     url(r'^%s$' % _('badges/'),app.meta.badges, name='badges'),
     url(r'^%s(?P<id>\d+)//*' % _('badges/'), app.meta.badge, name='badge'),
-    url(r'^%s%s$' % (_('messages/'), _('markread/')),app.meta.read_message, name='read_message'),
+    url(r'^%s%s$' % (_('messages/'), _('markread/')),app.commands.read_message, name='read_message'),
     # (r'^admin/doc/' % _('admin/doc'), include('django.contrib.admindocs.urls')),
-    (r'^%s(.*)' % _('nimda/'), admin.site.root),
-    url(r'^feeds/(?P<url>.*)/$', 'django.contrib.syndication.views.feed', {'feed_dict': feeds}),
-    (r'^%s$' % _('upload/'), app.content.upload),
+    url(r'^%s(.*)' % _('nimda/'), admin.site.root, name='osqa_admin'),
+    url(r'^feeds/(?P<url>.*)/$', 'django.contrib.syndication.views.feed', {'feed_dict': feeds}, name='feeds'),
+    url(r'^%s$' % _('upload/'), app.writers.upload, name='upload'),
     url(r'^%s$' % _('books/'), app.books.books, name='books'),
     url(r'^%s%s(?P<short_name>[^/]+)/$' % (_('books/'), _('ask/')), app.books.ask_book, name='ask_book'),
     url(r'^%s(?P<short_name>[^/]+)/$' % _('books/'), app.books.book, name='book'),
-    url(r'^%s$' % _('search/'), app.content.search, name='search'),
+    url(r'^%s$' % _('search/'), app.readers.search, name='search'),
     url(r'^%s$' % _('feedback/'), app.meta.feedback, name='feedback'),
     (r'^%sfb/' % _('account/'),  include('fbconnect.urls')), 
     (r'^%s' % _('account/'), include('django_authopenid.urls')),
diff --git a/forum/views/README b/forum/views/README
new file mode 100644
index 00000000..7b6201cd
--- /dev/null
+++ b/forum/views/README
@@ -0,0 +1,12 @@
+readers.py - views strictly reading main content: questions, answers, tags and comments
+
+writers.py - views that write main content, with possible reading
+             note: deletion counts as writing in this case
+
+commands.py - data status changing commands, votes, question close/reopen
+
+users.py - user views - user listing and profiles
+
+meta.py - privacy, about, faq, feedback, logout, badges
+
+books.py - book views - to be moved to a books extension
diff --git a/forum/views/__init__.py b/forum/views/__init__.py
index a8e179b4..8b82d161 100644
--- a/forum/views/__init__.py
+++ b/forum/views/__init__.py
@@ -1,4 +1,5 @@
-import content
+import readers
+import writers
 import commands
 import users
 import meta
diff --git a/forum/views/commands.py b/forum/views/commands.py
index 9ad07a2c..38915728 100644
--- a/forum/views/commands.py
+++ b/forum/views/commands.py
@@ -1,11 +1,14 @@
 import datetime
 from django.conf import settings
 from django.utils import simplejson
-from django.http import HttpResponse
+from django.http import HttpResponse, HttpResponseRedirect
 from django.shortcuts import get_object_or_404
 from django.utils.translation import ugettext as _
+from django.template import RequestContext
 from forum.models import *
+from forum.forms import CloseForm
 from forum import auth
+from django.contrib.auth.decorators import login_required
 from utils.decorators import ajax_method, ajax_login_required
 import logging
 
@@ -278,3 +281,54 @@ def ajax_command(request):#refactor? view processing ajax commands - note "vote"
     if request.POST['command'] == 'toggle-ignored-questions':
         return ajax_toggle_ignored_questions(request)
 
+@login_required
+def close(request, id):#close question
+    """view to initiate and process 
+    question close
+    """
+    question = get_object_or_404(Question, id=id)
+    if not auth.can_close_question(request.user, question):
+        return HttpResponse('Permission denied.')
+    if request.method == 'POST':
+        form = CloseForm(request.POST)
+        if form.is_valid():
+            reason = form.cleaned_data['reason']
+            question.closed = True
+            question.closed_by = request.user
+            question.closed_at = datetime.datetime.now()
+            question.close_reason = reason
+            question.save()
+        return HttpResponseRedirect(question.get_absolute_url())
+    else:
+        form = CloseForm()
+        return render_to_response('close.html', {
+            'form' : form,
+            'question' : question,
+            }, context_instance=RequestContext(request))
+
+@login_required
+def reopen(request, id):#re-open question
+    """view to initiate and process 
+    question close
+    """
+    question = get_object_or_404(Question, id=id)
+    # open question
+    if not auth.can_reopen_question(request.user, question):
+        return HttpResponse('Permission denied.')
+    if request.method == 'POST' :
+        Question.objects.filter(id=question.id).update(closed=False,
+            closed_by=None, closed_at=None, close_reason=None)
+        return HttpResponseRedirect(question.get_absolute_url())
+    else:
+        return render_to_response('reopen.html', {
+            'question' : question,
+            }, context_instance=RequestContext(request))
+
+#osqa-user communication system
+def read_message(request):#marks message a read
+    if request.method == "POST":
+        if request.POST['formdata'] == 'required':
+            request.session['message_silent'] = 1
+            if request.user.is_authenticated():
+                request.user.delete_messages()
+    return HttpResponse('')
diff --git a/forum/views/meta.py b/forum/views/meta.py
index b7a1183c..07e222b0 100644
--- a/forum/views/meta.py
+++ b/forum/views/meta.py
@@ -88,11 +88,3 @@ def badge(request, id):
         'badge' : badge,
     }, context_instance=RequestContext(request))
 
-#osqa-user communication system
-def read_message(request):#marks message a read
-    if request.method == "POST":
-        if request.POST['formdata'] == 'required':
-            request.session['message_silent'] = 1
-            if request.user.is_authenticated():
-                request.user.delete_messages()
-    return HttpResponse('')
diff --git a/forum/views/content.py b/forum/views/readers.py
index 5ac6164e..88b786aa 100644
--- a/forum/views/content.py
+++ b/forum/views/readers.py
@@ -1,28 +1,20 @@
 # encoding:utf-8
-import os.path
-import time, datetime, calendar, random
+import datetime
 import logging
-from urllib import quote, unquote
+from urllib import unquote
 from django.conf import settings
-from django.core.files.storage import default_storage
 from django.shortcuts import render_to_response, get_object_or_404
-from django.contrib.auth.decorators import login_required
 from django.http import HttpResponseRedirect, HttpResponse, HttpResponseForbidden, Http404
 from django.core.paginator import Paginator, EmptyPage, InvalidPage
-from django.template import RequestContext, loader
+from django.template import RequestContext
 from django.utils.html import *
 from django.utils import simplejson
-from django.core import serializers
-from django.db import transaction
-from django.db.models import Count, Q
-from django.contrib.contenttypes.models import ContentType
+from django.db.models import Q
 from django.utils.translation import ugettext as _
-from django.utils.datastructures import SortedDict
 from django.template.defaultfilters import slugify
-from django.core.exceptions import PermissionDenied
+from django.utils.datastructures import SortedDict
 
 from utils.html import sanitize_html
-from utils.decorators import ajax_method, ajax_login_required
 from markdown2 import Markdown
 #from lxml.html.diff import htmldiff
 from forum.diff import textDiff as htmldiff
@@ -34,6 +26,7 @@ from forum import auth
 from utils.forms import get_next_url
 
 # used in index page
+#refactor - move these numbers somewhere?
 INDEX_PAGE_SIZE = 20
 INDEX_AWARD_SIZE = 15
 INDEX_TAGS_SIZE = 100
@@ -581,543 +574,4 @@ def answer_revisions(request, id):
                               'post': post,
                               'revisions': revisions,
                               }, context_instance=RequestContext(request))
-#system to collect user actions and change content and store in the database
-def create_new_answer( question=None, author=None, #service subroutine - refactor
-            added_at=None, wiki=False,\
-            text='', email_notify=False):
-    """refactor
-    non-view subroutine
-    initializes the answer and revision
-    and updates stuff in the corresponding question
-    probably there is more Django-ish way to do it
-    """
-
-    html = sanitize_html(markdowner.convert(text))
-
-    #create answer
-    answer = Answer(
-        question = question,
-        author = author,
-        added_at = added_at,
-        wiki = wiki,
-        html = html
-    )
-    if answer.wiki:
-        answer.last_edited_by = answer.author
-        answer.last_edited_at = added_at 
-        answer.wikified_at = added_at 
-
-    answer.save()
-
-    #update question data
-    question.last_activity_at = added_at 
-    question.last_activity_by = author 
-    question.save()
-    Question.objects.update_answer_count(question)
-
-    #update revision
-    AnswerRevision.objects.create(
-        answer     = answer,
-        revision   = 1,
-        author     = author,
-        revised_at = added_at,
-        summary    = CONST['default_version'],
-        text       = text
-    )
-
-    #set notification/delete
-    if email_notify:
-        if author not in question.followed_by.all():
-            question.followed_by.add(author)
-    else:
-        #not sure if this is necessary. ajax should take care of this...
-        try:
-            question.followed_by.remove(author)
-        except:
-            pass
-
-def create_new_question(title=None,author=None,added_at=None, #service subroutine - refactor
-                        wiki=False,tagnames=None,summary=None,
-                        text=None):
-    """refactor
-    this is not a view saves new question and revision
-    and maybe should become one of the methods on Question object?
-    """
-    html = sanitize_html(markdowner.convert(text))
-    question = Question(
-        title            = title,
-        author           = author, 
-        added_at         = added_at,
-        last_activity_at = added_at,
-        last_activity_by = author,
-        wiki             = wiki,
-        tagnames         = tagnames,
-        html             = html,
-        summary          = summary 
-    )
-    if question.wiki:
-        question.last_edited_by = question.author
-        question.last_edited_at = added_at
-        question.wikified_at = added_at
-
-    question.save()
-
-    # create the first revision
-    QuestionRevision.objects.create(
-        question   = question,
-        revision   = 1,
-        title      = question.title,
-        author     = author,
-        revised_at = added_at,
-        tagnames   = question.tagnames,
-        summary    = CONST['default_version'],
-        text       = text
-    )
-    return question
-
-def upload(request):#ajax upload file to a question or answer 
-    class FileTypeNotAllow(Exception):
-        pass
-    class FileSizeNotAllow(Exception):
-        pass
-    class UploadPermissionNotAuthorized(Exception):
-        pass
-
-    #<result><msg><![CDATA[%s]]></msg><error><![CDATA[%s]]></error><file_url>%s</file_url></result>
-    xml_template = "<result><msg><![CDATA[%s]]></msg><error><![CDATA[%s]]></error><file_url>%s</file_url></result>"
-
-    try:
-        f = request.FILES['file-upload']
-        # check upload permission
-        if not auth.can_upload_files(request.user):
-            raise UploadPermissionNotAuthorized
-
-        # check file type
-        file_name_suffix = os.path.splitext(f.name)[1].lower()
-        if not file_name_suffix in settings.ALLOW_FILE_TYPES:
-            raise FileTypeNotAllow
-
-        # generate new file name
-        new_file_name = str(time.time()).replace('.', str(random.randint(0,100000))) + file_name_suffix
-        # use default storage to store file
-        default_storage.save(new_file_name, f)
-        # check file size
-        # byte
-        size = default_storage.size(new_file_name)
-        if size > settings.ALLOW_MAX_FILE_SIZE:
-            default_storage.delete(new_file_name)
-            raise FileSizeNotAllow
-
-        result = xml_template % ('Good', '', default_storage.url(new_file_name))
-    except UploadPermissionNotAuthorized:
-        result = xml_template % ('', _('uploading images is limited to users with >60 reputation points'), '')
-    except FileTypeNotAllow:
-        result = xml_template % ('', _("allowed file types are 'jpg', 'jpeg', 'gif', 'bmp', 'png', 'tiff'"), '')
-    except FileSizeNotAllow:
-        result = xml_template % ('', _("maximum upload file size is %sK") % settings.ALLOW_MAX_FILE_SIZE / 1024, '')
-    except Exception:
-        result = xml_template % ('', _('Error uploading file. Please contact the site administrator. Thank you. %s' % Exception), '')
-
-    return HttpResponse(result, mimetype="application/xml")
-
-#@login_required #actually you can post anonymously, but then must register
-def ask(request):#view used to ask a new question
-    """a view to ask a new question
-    gives space for q title, body, tags and checkbox for to post as wiki
-
-    user can start posting a question anonymously but then
-    must login/register in order for the question go be shown
-    """
-    if request.method == "POST":
-        form = AskForm(request.POST)
-        if form.is_valid():
-
-            added_at = datetime.datetime.now()
-            title = strip_tags(form.cleaned_data['title'].strip())
-            wiki = form.cleaned_data['wiki']
-            tagnames = form.cleaned_data['tags'].strip()
-            text = form.cleaned_data['text']
-            html = sanitize_html(markdowner.convert(text))
-            summary = strip_tags(html)[:120]
-
-            if request.user.is_authenticated():
-                author = request.user 
-
-                question = create_new_question(
-                    title            = title,
-                    author           = author, 
-                    added_at         = added_at,
-                    wiki             = wiki,
-                    tagnames         = tagnames,
-                    summary          = summary,
-                    text = text
-                )
-
-                return HttpResponseRedirect(question.get_absolute_url())
-            else:
-                request.session.flush()
-                session_key = request.session.session_key
-                question = AnonymousQuestion(
-                    session_key = session_key,
-                    title       = title,
-                    tagnames = tagnames,
-                    wiki = wiki,
-                    text = text,
-                    summary = summary,
-                    added_at = added_at,
-                    ip_addr = request.META['REMOTE_ADDR'],
-                )
-                question.save()
-                return HttpResponseRedirect(reverse('user_signin_new_question'))
-    else:
-        form = AskForm()
-
-    tags = _get_tags_cache_json()
-    return render_to_response('ask.html', {
-        'form' : form,
-        'tags' : tags,
-        'email_validation_faq_url':reverse('faq') + '#validate',
-        }, context_instance=RequestContext(request))
-
-@login_required
-def close(request, id):#close question
-    """view to initiate and process 
-    question close
-    """
-    question = get_object_or_404(Question, id=id)
-    if not auth.can_close_question(request.user, question):
-        return HttpResponse('Permission denied.')
-    if request.method == 'POST':
-        form = CloseForm(request.POST)
-        if form.is_valid():
-            reason = form.cleaned_data['reason']
-            question.closed = True
-            question.closed_by = request.user
-            question.closed_at = datetime.datetime.now()
-            question.close_reason = reason
-            question.save()
-        return HttpResponseRedirect(question.get_absolute_url())
-    else:
-        form = CloseForm()
-        return render_to_response('close.html', {
-            'form' : form,
-            'question' : question,
-            }, context_instance=RequestContext(request))
-
-@login_required
-def reopen(request, id):#re-open question
-    """view to initiate and process 
-    question close
-    """
-    question = get_object_or_404(Question, id=id)
-    # open question
-    if not auth.can_reopen_question(request.user, question):
-        return HttpResponse('Permission denied.')
-    if request.method == 'POST' :
-        Question.objects.filter(id=question.id).update(closed=False,
-            closed_by=None, closed_at=None, close_reason=None)
-        return HttpResponseRedirect(question.get_absolute_url())
-    else:
-        return render_to_response('reopen.html', {
-            'question' : question,
-            }, context_instance=RequestContext(request))
-
-@login_required
-def edit_question(request, id):#edit or retag a question
-    """view to edit question
-    """
-    question = get_object_or_404(Question, id=id)
-    if question.deleted and not auth.can_view_deleted_post(request.user, question):
-        raise Http404
-    if auth.can_edit_post(request.user, question):
-        return _edit_question(request, question)
-    elif auth.can_retag_questions(request.user):
-        return _retag_question(request, question)
-    else:
-        raise Http404
-
-def _retag_question(request, question):#non-url subview of edit question - just retag
-    """retag question sub-view used by
-    view "edit_question"
-    """
-    if request.method == 'POST':
-        form = RetagQuestionForm(question, request.POST)
-        if form.is_valid():
-            if form.has_changed():
-                latest_revision = question.get_latest_revision()
-                retagged_at = datetime.datetime.now()
-                # Update the Question itself
-                Question.objects.filter(id=question.id).update(
-                    tagnames         = form.cleaned_data['tags'],
-                    last_edited_at   = retagged_at,
-                    last_edited_by   = request.user,
-                    last_activity_at = retagged_at,
-                    last_activity_by = request.user
-                )
-                # Update the Question's tag associations
-                tags_updated = Question.objects.update_tags(question,
-                    form.cleaned_data['tags'], request.user)
-                # Create a new revision
-                QuestionRevision.objects.create(
-                    question   = question,
-                    title      = latest_revision.title,
-                    author     = request.user,
-                    revised_at = retagged_at,
-                    tagnames   = form.cleaned_data['tags'],
-                    summary    = CONST['retagged'],
-                    text       = latest_revision.text
-                )
-                # send tags updated singal
-                tags_updated.send(sender=question.__class__, question=question)
-
-            return HttpResponseRedirect(question.get_absolute_url())
-    else:
-        form = RetagQuestionForm(question)
-    return render_to_response('question_retag.html', {
-        'question': question,
-        'form' : form,
-        'tags' : _get_tags_cache_json(),
-    }, context_instance=RequestContext(request))
-
-def _edit_question(request, question):#non-url subview of edit_question - just edit the body/title
-    latest_revision = question.get_latest_revision()
-    revision_form = None
-    if request.method == 'POST':
-        if 'select_revision' in request.POST:
-            # user has changed revistion number
-            revision_form = RevisionForm(question, latest_revision, request.POST)
-            if revision_form.is_valid():
-                # Replace with those from the selected revision
-                form = EditQuestionForm(question,
-                    QuestionRevision.objects.get(question=question,
-                        revision=revision_form.cleaned_data['revision']))
-            else:
-                form = EditQuestionForm(question, latest_revision, request.POST)
-        else:
-            # Always check modifications against the latest revision
-            form = EditQuestionForm(question, latest_revision, request.POST)
-            if form.is_valid():
-                html = sanitize_html(markdowner.convert(form.cleaned_data['text']))
-                if form.has_changed():
-                    edited_at = datetime.datetime.now()
-                    tags_changed = (latest_revision.tagnames !=
-                                    form.cleaned_data['tags'])
-                    tags_updated = False
-                    # Update the Question itself
-                    updated_fields = {
-                        'title': form.cleaned_data['title'],
-                        'last_edited_at': edited_at,
-                        'last_edited_by': request.user,
-                        'last_activity_at': edited_at,
-                        'last_activity_by': request.user,
-                        'tagnames': form.cleaned_data['tags'],
-                        'summary': strip_tags(html)[:120],
-                        'html': html,
-                    }
-
-                    # only save when it's checked
-                    # because wiki doesn't allow to be edited if last version has been enabled already
-                    # and we make sure this in forms.
-                    if ('wiki' in form.cleaned_data and
-                        form.cleaned_data['wiki']):
-                        updated_fields['wiki'] = True
-                        updated_fields['wikified_at'] = edited_at
-
-                    Question.objects.filter(
-                        id=question.id).update(**updated_fields)
-                    # Update the Question's tag associations
-                    if tags_changed:
-                        tags_updated = Question.objects.update_tags(
-                            question, form.cleaned_data['tags'], request.user)
-                    # Create a new revision
-                    revision = QuestionRevision(
-                        question   = question,
-                        title      = form.cleaned_data['title'],
-                        author     = request.user,
-                        revised_at = edited_at,
-                        tagnames   = form.cleaned_data['tags'],
-                        text       = form.cleaned_data['text'],
-                    )
-                    if form.cleaned_data['summary']:
-                        revision.summary = form.cleaned_data['summary']
-                    else:
-                        revision.summary = 'No.%s Revision' % latest_revision.revision
-                    revision.save()
-
-                return HttpResponseRedirect(question.get_absolute_url())
-    else:
-
-        revision_form = RevisionForm(question, latest_revision)
-        form = EditQuestionForm(question, latest_revision)
-    return render_to_response('question_edit.html', {
-        'question': question,
-        'revision_form': revision_form,
-        'form' : form,
-        'tags' : _get_tags_cache_json()
-    }, context_instance=RequestContext(request))
-
-@login_required
-def edit_answer(request, id):
-    answer = get_object_or_404(Answer, id=id)
-    if answer.deleted and not auth.can_view_deleted_post(request.user, answer):
-        raise Http404
-    elif not auth.can_edit_post(request.user, answer):
-        raise Http404
-    else:
-        latest_revision = answer.get_latest_revision()
-        if request.method == "POST":
-            if 'select_revision' in request.POST:
-                # user has changed revistion number
-                revision_form = RevisionForm(answer, latest_revision, request.POST)
-                if revision_form.is_valid():
-                    # Replace with those from the selected revision
-                    form = EditAnswerForm(answer,
-                                          AnswerRevision.objects.get(answer=answer,
-                                          revision=revision_form.cleaned_data['revision']))
-                else:
-                    form = EditAnswerForm(answer, latest_revision, request.POST)
-            else:
-                form = EditAnswerForm(answer, latest_revision, request.POST)
-                if form.is_valid():
-                    html = sanitize_html(markdowner.convert(form.cleaned_data['text']))
-                    if form.has_changed():
-                        edited_at = datetime.datetime.now()
-                        updated_fields = {
-                            'last_edited_at': edited_at,
-                            'last_edited_by': request.user,
-                            'html': html,
-                        }
-                        Answer.objects.filter(id=answer.id).update(**updated_fields)
-
-                        revision = AnswerRevision(
-                                                  answer=answer,
-                                                  author=request.user,
-                                                  revised_at=edited_at,
-                                                  text=form.cleaned_data['text']
-                                                  )
-
-                        if form.cleaned_data['summary']:
-                            revision.summary = form.cleaned_data['summary']
-                        else:
-                            revision.summary = 'No.%s Revision' % latest_revision.revision
-                        revision.save()
-
-                        answer.question.last_activity_at = edited_at
-                        answer.question.last_activity_by = request.user
-                        answer.question.save()
-
-                    return HttpResponseRedirect(answer.get_absolute_url())
-        else:
-            revision_form = RevisionForm(answer, latest_revision)
-            form = EditAnswerForm(answer, latest_revision)
-        return render_to_response('answer_edit.html', {
-                                  'answer': answer,
-                                  'revision_form': revision_form,
-                                  'form': form,
-                                  }, context_instance=RequestContext(request))
-
-def answer(request, id):#process a new answer
-    question = get_object_or_404(Question, id=id)
-    if request.method == "POST":
-        form = AnswerForm(question, request.user, request.POST)
-        if form.is_valid():
-            wiki = form.cleaned_data['wiki']
-            text = form.cleaned_data['text']
-            update_time = datetime.datetime.now()
-
-            if request.user.is_authenticated():
-                create_new_answer(
-                                  question=question,
-                                  author=request.user,
-                                  added_at=update_time,
-                                  wiki=wiki,
-                                  text=text,
-                                  email_notify=form.cleaned_data['email_notify']
-                                  )
-            else:
-                request.session.flush()
-                html = sanitize_html(markdowner.convert(text))
-                summary = strip_tags(html)[:120]
-                anon = AnonymousAnswer(
-                                       question=question,
-                                       wiki=wiki,
-                                       text=text,
-                                       summary=summary,
-                                       session_key=request.session.session_key,
-                                       ip_addr=request.META['REMOTE_ADDR'],
-                                       )
-                anon.save()
-                return HttpResponseRedirect(reverse('user_signin_new_answer'))
-
-    return HttpResponseRedirect(question.get_absolute_url())
-
-def question_comments(request, id):#ajax handler for loading comments to question
-    question = get_object_or_404(Question, id=id)
-    user = request.user
-    return __comments(request, question, 'question')
-
-def answer_comments(request, id):#ajax handler for loading comments on answer
-    answer = get_object_or_404(Answer, id=id)
-    user = request.user
-    return __comments(request, answer, 'answer')
-
-def __comments(request, obj, type):#non-view generic ajax handler to load comments to an object
-    # only support get post comments by ajax now
-    user = request.user
-    if request.is_ajax():
-        if request.method == "GET":
-            response = __generate_comments_json(obj, type, user)
-        elif request.method == "POST":
-            if auth.can_add_comments(user,obj):
-                comment_data = request.POST.get('comment')
-                comment = Comment(content_object=obj, comment=comment_data, user=request.user)
-                comment.save()
-                obj.comment_count = obj.comment_count + 1
-                obj.save()
-                response = __generate_comments_json(obj, type, user)
-            else:
-                response = HttpResponseForbidden(mimetype="application/json")
-        return response
-
-def __generate_comments_json(obj, type, user):#non-view generates json data for the post comments
-    comments = obj.comments.all().order_by('id')
-    # {"Id":6,"PostId":38589,"CreationDate":"an hour ago","Text":"hello there!","UserDisplayName":"Jarrod Dixon","UserUrl":"/users/3/jarrod-dixon","DeleteUrl":null}
-    json_comments = []
-    from forum.templatetags.extra_tags import diff_date
-    for comment in comments:
-        comment_user = comment.user
-        delete_url = ""
-        if user != None and auth.can_delete_comment(user, comment):
-            #/posts/392845/comments/219852/delete
-            #todo translate this url
-            delete_url = reverse(index) + type + "s/%s/comments/%s/delete/" % (obj.id, comment.id)
-        json_comments.append({"id" : comment.id,
-            "object_id" : obj.id,
-            "comment_age" : diff_date(comment.added_at),
-            "text" : comment.comment,
-            "user_display_name" : comment_user.username,
-            "user_url" : comment_user.get_profile_url(),
-            "delete_url" : delete_url
-        })
-
-    data = simplejson.dumps(json_comments)
-    return HttpResponse(data, mimetype="application/json")
-
-def delete_comment(request, object_id='', comment_id='', commented_object_type=None):#ajax handler to delete comment
-    response = None
-    commented_object = None
-    if commented_object_type == 'question':
-        commented_object = Question
-    elif commented_object_type == 'answer':
-        commented_object = Answer
 
-    if request.is_ajax():
-        comment = get_object_or_404(Comment, id=comment_id)
-        if auth.can_delete_comment(request.user, comment):
-            obj = get_object_or_404(commented_object, id=object_id)
-            obj.comments.remove(comment)
-            obj.comment_count = obj.comment_count - 1
-            obj.save()
-            user = request.user
-            return __generate_comments_json(obj, commented_object_type, user)
-    raise PermissionDenied()
diff --git a/forum/views/users.py b/forum/views/users.py
index 2c7f5c34..a7ff252d 100644
--- a/forum/views/users.py
+++ b/forum/views/users.py
@@ -938,3 +938,4 @@ def user(request, id):
     from forum.views import users
     func = user_view.view_func
     return func(request, id, user_view)
+
diff --git a/forum/views/writers.py b/forum/views/writers.py
new file mode 100644
index 00000000..33b49423
--- /dev/null
+++ b/forum/views/writers.py
@@ -0,0 +1,535 @@
+# encoding:utf-8
+import os.path
+import time, datetime, random
+import logging
+from django.core.files.storage import default_storage
+from django.shortcuts import render_to_response, get_object_or_404
+from django.contrib.auth.decorators import login_required
+from django.http import HttpResponseRedirect, HttpResponse, HttpResponseForbidden, Http404
+from django.template import RequestContext
+from django.utils.html import *
+from django.utils import simplejson
+from django.utils.translation import ugettext as _
+from django.core.exceptions import PermissionDenied
+
+from utils.html import sanitize_html
+from markdown2 import Markdown
+from forum.forms import *
+from forum.models import *
+from forum.auth import *
+from forum.const import *
+from forum import auth
+from utils.forms import get_next_url
+from forum.views.readers import _get_tags_cache_json
+
+# used in index page
+INDEX_PAGE_SIZE = 20
+INDEX_AWARD_SIZE = 15
+INDEX_TAGS_SIZE = 100
+# used in tags list
+DEFAULT_PAGE_SIZE = 60
+# used in questions
+QUESTIONS_PAGE_SIZE = 10
+# used in answers
+ANSWERS_PAGE_SIZE = 10
+
+markdowner = Markdown(html4tags=True)
+
+#system to collect user actions and change content and store in the database
+def create_new_answer( question=None, author=None, #service subroutine - refactor
+            added_at=None, wiki=False,\
+            text='', email_notify=False):
+    """refactor
+    non-view subroutine
+    initializes the answer and revision
+    and updates stuff in the corresponding question
+    probably there is more Django-ish way to do it
+    """
+
+    html = sanitize_html(markdowner.convert(text))
+
+    #create answer
+    answer = Answer(
+        question = question,
+        author = author,
+        added_at = added_at,
+        wiki = wiki,
+        html = html
+    )
+    if answer.wiki:
+        answer.last_edited_by = answer.author
+        answer.last_edited_at = added_at 
+        answer.wikified_at = added_at 
+
+    answer.save()
+
+    #update question data
+    question.last_activity_at = added_at 
+    question.last_activity_by = author 
+    question.save()
+    Question.objects.update_answer_count(question)
+
+    #update revision
+    AnswerRevision.objects.create(
+        answer     = answer,
+        revision   = 1,
+        author     = author,
+        revised_at = added_at,
+        summary    = CONST['default_version'],
+        text       = text
+    )
+
+    #set notification/delete
+    if email_notify:
+        if author not in question.followed_by.all():
+            question.followed_by.add(author)
+    else:
+        #not sure if this is necessary. ajax should take care of this...
+        try:
+            question.followed_by.remove(author)
+        except:
+            pass
+
+def create_new_question(title=None,author=None,added_at=None, #service subroutine - refactor
+                        wiki=False,tagnames=None,summary=None,
+                        text=None):
+    """refactor
+    this is not a view saves new question and revision
+    and maybe should become one of the methods on Question object?
+    """
+    html = sanitize_html(markdowner.convert(text))
+    question = Question(
+        title            = title,
+        author           = author, 
+        added_at         = added_at,
+        last_activity_at = added_at,
+        last_activity_by = author,
+        wiki             = wiki,
+        tagnames         = tagnames,
+        html             = html,
+        summary          = summary 
+    )
+    if question.wiki:
+        question.last_edited_by = question.author
+        question.last_edited_at = added_at
+        question.wikified_at = added_at
+
+    question.save()
+
+    # create the first revision
+    QuestionRevision.objects.create(
+        question   = question,
+        revision   = 1,
+        title      = question.title,
+        author     = author,
+        revised_at = added_at,
+        tagnames   = question.tagnames,
+        summary    = CONST['default_version'],
+        text       = text
+    )
+    return question
+
+def upload(request):#ajax upload file to a question or answer 
+    class FileTypeNotAllow(Exception):
+        pass
+    class FileSizeNotAllow(Exception):
+        pass
+    class UploadPermissionNotAuthorized(Exception):
+        pass
+
+    #<result><msg><![CDATA[%s]]></msg><error><![CDATA[%s]]></error><file_url>%s</file_url></result>
+    xml_template = "<result><msg><![CDATA[%s]]></msg><error><![CDATA[%s]]></error><file_url>%s</file_url></result>"
+
+    try:
+        f = request.FILES['file-upload']
+        # check upload permission
+        if not auth.can_upload_files(request.user):
+            raise UploadPermissionNotAuthorized
+
+        # check file type
+        file_name_suffix = os.path.splitext(f.name)[1].lower()
+        if not file_name_suffix in settings.ALLOW_FILE_TYPES:
+            raise FileTypeNotAllow
+
+        # generate new file name
+        new_file_name = str(time.time()).replace('.', str(random.randint(0,100000))) + file_name_suffix
+        # use default storage to store file
+        default_storage.save(new_file_name, f)
+        # check file size
+        # byte
+        size = default_storage.size(new_file_name)
+        if size > settings.ALLOW_MAX_FILE_SIZE:
+            default_storage.delete(new_file_name)
+            raise FileSizeNotAllow
+
+        result = xml_template % ('Good', '', default_storage.url(new_file_name))
+    except UploadPermissionNotAuthorized:
+        result = xml_template % ('', _('uploading images is limited to users with >60 reputation points'), '')
+    except FileTypeNotAllow:
+        result = xml_template % ('', _("allowed file types are 'jpg', 'jpeg', 'gif', 'bmp', 'png', 'tiff'"), '')
+    except FileSizeNotAllow:
+        result = xml_template % ('', _("maximum upload file size is %sK") % settings.ALLOW_MAX_FILE_SIZE / 1024, '')
+    except Exception:
+        result = xml_template % ('', _('Error uploading file. Please contact the site administrator. Thank you. %s' % Exception), '')
+
+    return HttpResponse(result, mimetype="application/xml")
+
+#@login_required #actually you can post anonymously, but then must register
+def ask(request):#view used to ask a new question
+    """a view to ask a new question
+    gives space for q title, body, tags and checkbox for to post as wiki
+
+    user can start posting a question anonymously but then
+    must login/register in order for the question go be shown
+    """
+    if request.method == "POST":
+        form = AskForm(request.POST)
+        if form.is_valid():
+
+            added_at = datetime.datetime.now()
+            title = strip_tags(form.cleaned_data['title'].strip())
+            wiki = form.cleaned_data['wiki']
+            tagnames = form.cleaned_data['tags'].strip()
+            text = form.cleaned_data['text']
+            html = sanitize_html(markdowner.convert(text))
+            summary = strip_tags(html)[:120]
+
+            if request.user.is_authenticated():
+                author = request.user 
+
+                question = create_new_question(
+                    title            = title,
+                    author           = author, 
+                    added_at         = added_at,
+                    wiki             = wiki,
+                    tagnames         = tagnames,
+                    summary          = summary,
+                    text = text
+                )
+
+                return HttpResponseRedirect(question.get_absolute_url())
+            else:
+                request.session.flush()
+                session_key = request.session.session_key
+                question = AnonymousQuestion(
+                    session_key = session_key,
+                    title       = title,
+                    tagnames = tagnames,
+                    wiki = wiki,
+                    text = text,
+                    summary = summary,
+                    added_at = added_at,
+                    ip_addr = request.META['REMOTE_ADDR'],
+                )
+                question.save()
+                return HttpResponseRedirect(reverse('user_signin_new_question'))
+    else:
+        form = AskForm()
+
+    tags = _get_tags_cache_json()
+    return render_to_response('ask.html', {
+        'form' : form,
+        'tags' : tags,
+        'email_validation_faq_url':reverse('faq') + '#validate',
+        }, context_instance=RequestContext(request))
+
+@login_required
+def edit_question(request, id):#edit or retag a question
+    """view to edit question
+    """
+    question = get_object_or_404(Question, id=id)
+    if question.deleted and not auth.can_view_deleted_post(request.user, question):
+        raise Http404
+    if auth.can_edit_post(request.user, question):
+        return _edit_question(request, question)
+    elif auth.can_retag_questions(request.user):
+        return _retag_question(request, question)
+    else:
+        raise Http404
+
+def _retag_question(request, question):#non-url subview of edit question - just retag
+    """retag question sub-view used by
+    view "edit_question"
+    """
+    if request.method == 'POST':
+        form = RetagQuestionForm(question, request.POST)
+        if form.is_valid():
+            if form.has_changed():
+                latest_revision = question.get_latest_revision()
+                retagged_at = datetime.datetime.now()
+                # Update the Question itself
+                Question.objects.filter(id=question.id).update(
+                    tagnames         = form.cleaned_data['tags'],
+                    last_edited_at   = retagged_at,
+                    last_edited_by   = request.user,
+                    last_activity_at = retagged_at,
+                    last_activity_by = request.user
+                )
+                # Update the Question's tag associations
+                tags_updated = Question.objects.update_tags(question,
+                    form.cleaned_data['tags'], request.user)
+                # Create a new revision
+                QuestionRevision.objects.create(
+                    question   = question,
+                    title      = latest_revision.title,
+                    author     = request.user,
+                    revised_at = retagged_at,
+                    tagnames   = form.cleaned_data['tags'],
+                    summary    = CONST['retagged'],
+                    text       = latest_revision.text
+                )
+                # send tags updated singal
+                tags_updated.send(sender=question.__class__, question=question)
+
+            return HttpResponseRedirect(question.get_absolute_url())
+    else:
+        form = RetagQuestionForm(question)
+    return render_to_response('question_retag.html', {
+        'question': question,
+        'form' : form,
+        'tags' : _get_tags_cache_json(),
+    }, context_instance=RequestContext(request))
+
+def _edit_question(request, question):#non-url subview of edit_question - just edit the body/title
+    latest_revision = question.get_latest_revision()
+    revision_form = None
+    if request.method == 'POST':
+        if 'select_revision' in request.POST:
+            # user has changed revistion number
+            revision_form = RevisionForm(question, latest_revision, request.POST)
+            if revision_form.is_valid():
+                # Replace with those from the selected revision
+                form = EditQuestionForm(question,
+                    QuestionRevision.objects.get(question=question,
+                        revision=revision_form.cleaned_data['revision']))
+            else:
+                form = EditQuestionForm(question, latest_revision, request.POST)
+        else:
+            # Always check modifications against the latest revision
+            form = EditQuestionForm(question, latest_revision, request.POST)
+            if form.is_valid():
+                html = sanitize_html(markdowner.convert(form.cleaned_data['text']))
+                if form.has_changed():
+                    edited_at = datetime.datetime.now()
+                    tags_changed = (latest_revision.tagnames !=
+                                    form.cleaned_data['tags'])
+                    tags_updated = False
+                    # Update the Question itself
+                    updated_fields = {
+                        'title': form.cleaned_data['title'],
+                        'last_edited_at': edited_at,
+                        'last_edited_by': request.user,
+                        'last_activity_at': edited_at,
+                        'last_activity_by': request.user,
+                        'tagnames': form.cleaned_data['tags'],
+                        'summary': strip_tags(html)[:120],
+                        'html': html,
+                    }
+
+                    # only save when it's checked
+                    # because wiki doesn't allow to be edited if last version has been enabled already
+                    # and we make sure this in forms.
+                    if ('wiki' in form.cleaned_data and
+                        form.cleaned_data['wiki']):
+                        updated_fields['wiki'] = True
+                        updated_fields['wikified_at'] = edited_at
+
+                    Question.objects.filter(
+                        id=question.id).update(**updated_fields)
+                    # Update the Question's tag associations
+                    if tags_changed:
+                        tags_updated = Question.objects.update_tags(
+                            question, form.cleaned_data['tags'], request.user)
+                    # Create a new revision
+                    revision = QuestionRevision(
+                        question   = question,
+                        title      = form.cleaned_data['title'],
+                        author     = request.user,
+                        revised_at = edited_at,
+                        tagnames   = form.cleaned_data['tags'],
+                        text       = form.cleaned_data['text'],
+                    )
+                    if form.cleaned_data['summary']:
+                        revision.summary = form.cleaned_data['summary']
+                    else:
+                        revision.summary = 'No.%s Revision' % latest_revision.revision
+                    revision.save()
+
+                return HttpResponseRedirect(question.get_absolute_url())
+    else:
+
+        revision_form = RevisionForm(question, latest_revision)
+        form = EditQuestionForm(question, latest_revision)
+    return render_to_response('question_edit.html', {
+        'question': question,
+        'revision_form': revision_form,
+        'form' : form,
+        'tags' : _get_tags_cache_json()
+    }, context_instance=RequestContext(request))
+
+@login_required
+def edit_answer(request, id):
+    answer = get_object_or_404(Answer, id=id)
+    if answer.deleted and not auth.can_view_deleted_post(request.user, answer):
+        raise Http404
+    elif not auth.can_edit_post(request.user, answer):
+        raise Http404
+    else:
+        latest_revision = answer.get_latest_revision()
+        if request.method == "POST":
+            if 'select_revision' in request.POST:
+                # user has changed revistion number
+                revision_form = RevisionForm(answer, latest_revision, request.POST)
+                if revision_form.is_valid():
+                    # Replace with those from the selected revision
+                    form = EditAnswerForm(answer,
+                                          AnswerRevision.objects.get(answer=answer,
+                                          revision=revision_form.cleaned_data['revision']))
+                else:
+                    form = EditAnswerForm(answer, latest_revision, request.POST)
+            else:
+                form = EditAnswerForm(answer, latest_revision, request.POST)
+                if form.is_valid():
+                    html = sanitize_html(markdowner.convert(form.cleaned_data['text']))
+                    if form.has_changed():
+                        edited_at = datetime.datetime.now()
+                        updated_fields = {
+                            'last_edited_at': edited_at,
+                            'last_edited_by': request.user,
+                            'html': html,
+                        }
+                        Answer.objects.filter(id=answer.id).update(**updated_fields)
+
+                        revision = AnswerRevision(
+                                                  answer=answer,
+                                                  author=request.user,
+                                                  revised_at=edited_at,
+                                                  text=form.cleaned_data['text']
+                                                  )
+
+                        if form.cleaned_data['summary']:
+                            revision.summary = form.cleaned_data['summary']
+                        else:
+                            revision.summary = 'No.%s Revision' % latest_revision.revision
+                        revision.save()
+
+                        answer.question.last_activity_at = edited_at
+                        answer.question.last_activity_by = request.user
+                        answer.question.save()
+
+                    return HttpResponseRedirect(answer.get_absolute_url())
+        else:
+            revision_form = RevisionForm(answer, latest_revision)
+            form = EditAnswerForm(answer, latest_revision)
+        return render_to_response('answer_edit.html', {
+                                  'answer': answer,
+                                  'revision_form': revision_form,
+                                  'form': form,
+                                  }, context_instance=RequestContext(request))
+
+def answer(request, id):#process a new answer
+    question = get_object_or_404(Question, id=id)
+    if request.method == "POST":
+        form = AnswerForm(question, request.user, request.POST)
+        if form.is_valid():
+            wiki = form.cleaned_data['wiki']
+            text = form.cleaned_data['text']
+            update_time = datetime.datetime.now()
+
+            if request.user.is_authenticated():
+                create_new_answer(
+                                  question=question,
+                                  author=request.user,
+                                  added_at=update_time,
+                                  wiki=wiki,
+                                  text=text,
+                                  email_notify=form.cleaned_data['email_notify']
+                                  )
+            else:
+                request.session.flush()
+                html = sanitize_html(markdowner.convert(text))
+                summary = strip_tags(html)[:120]
+                anon = AnonymousAnswer(
+                                       question=question,
+                                       wiki=wiki,
+                                       text=text,
+                                       summary=summary,
+                                       session_key=request.session.session_key,
+                                       ip_addr=request.META['REMOTE_ADDR'],
+                                       )
+                anon.save()
+                return HttpResponseRedirect(reverse('user_signin_new_answer'))
+
+    return HttpResponseRedirect(question.get_absolute_url())
+
+def __generate_comments_json(obj, type, user):#non-view generates json data for the post comments
+    comments = obj.comments.all().order_by('id')
+    # {"Id":6,"PostId":38589,"CreationDate":"an hour ago","Text":"hello there!","UserDisplayName":"Jarrod Dixon","UserUrl":"/users/3/jarrod-dixon","DeleteUrl":null}
+    json_comments = []
+    from forum.templatetags.extra_tags import diff_date
+    for comment in comments:
+        comment_user = comment.user
+        delete_url = ""
+        if user != None and auth.can_delete_comment(user, comment):
+            #/posts/392845/comments/219852/delete
+            #todo translate this url
+            delete_url = reverse(index) + type + "s/%s/comments/%s/delete/" % (obj.id, comment.id)
+        json_comments.append({"id" : comment.id,
+            "object_id" : obj.id,
+            "comment_age" : diff_date(comment.added_at),
+            "text" : comment.comment,
+            "user_display_name" : comment_user.username,
+            "user_url" : comment_user.get_profile_url(),
+            "delete_url" : delete_url
+        })
+
+    data = simplejson.dumps(json_comments)
+    return HttpResponse(data, mimetype="application/json")
+
+
+def question_comments(request, id):#ajax handler for loading comments to question
+    question = get_object_or_404(Question, id=id)
+    user = request.user
+    return __comments(request, question, 'question')
+
+def answer_comments(request, id):#ajax handler for loading comments on answer
+    answer = get_object_or_404(Answer, id=id)
+    user = request.user
+    return __comments(request, answer, 'answer')
+
+def __comments(request, obj, type):#non-view generic ajax handler to load comments to an object
+    # only support get post comments by ajax now
+    user = request.user
+    if request.is_ajax():
+        if request.method == "GET":
+            response = __generate_comments_json(obj, type, user)
+        elif request.method == "POST":
+            if auth.can_add_comments(user,obj):
+                comment_data = request.POST.get('comment')
+                comment = Comment(content_object=obj, comment=comment_data, user=request.user)
+                comment.save()
+                obj.comment_count = obj.comment_count + 1
+                obj.save()
+                response = __generate_comments_json(obj, type, user)
+            else:
+                response = HttpResponseForbidden(mimetype="application/json")
+        return response
+
+def delete_comment(request, object_id='', comment_id='', commented_object_type=None):#ajax handler to delete comment
+    response = None
+    commented_object = None
+    if commented_object_type == 'question':
+        commented_object = Question
+    elif commented_object_type == 'answer':
+        commented_object = Answer
+
+    if request.is_ajax():
+        comment = get_object_or_404(Comment, id=comment_id)
+        if auth.can_delete_comment(request.user, comment):
+            obj = get_object_or_404(commented_object, id=object_id)
+            obj.comments.remove(comment)
+            obj.comment_count = obj.comment_count - 1
+            obj.save()
+            user = request.user
+            return __generate_comments_json(obj, commented_object_type, user)
+    raise PermissionDenied()