split forum/views.py, fixed defect in skins on the javascript side and blockmedia template tag

20 files changed, 3655 insertions, 582 deletions

diff --git a/forum/__init__.py b/forum/__init__.py
index e69de29b..a221a3ad 100644
--- a/forum/__init__.py
+++ b/forum/__init__.py
@@ -0,0 +1 @@
+__all__ = ['admin','auth','const','diff','feed','forms','managers','models','sitemap','urls','views']
diff --git a/forum/forms.py.orig b/forum/forms.py.orig
deleted file mode 100644
index 42becc11..00000000
--- a/forum/forms.py.orig
+++ /dev/null
@@ -1,352 +0,0 @@
-import re
-from datetime import date
-from django import forms
-from models import *
-from const import *
-from django.utils.translation import ugettext as _
-from utils.forms import NextUrlField, UserNameField
-from recaptcha_django import ReCaptchaField
-from django.conf import settings
-import logging
-
-class TitleField(forms.CharField):
-    def __init__(self, *args, **kwargs):
-        super(TitleField, self).__init__(*args, **kwargs)
-        self.required = True
-        self.widget = forms.TextInput(attrs={'size' : 70, 'autocomplete' : 'off'})
-        self.max_length = 255
-        self.label  = _('title')
-        self.help_text = _('please enter a descriptive title for your question')
-        self.initial = ''
-
-    def clean(self, value):
-        if len(value) < 10:
-            raise forms.ValidationError(_('title must be > 10 characters'))
-
-        return value
-
-class EditorField(forms.CharField):
-    def __init__(self, *args, **kwargs):
-        super(EditorField, self).__init__(*args, **kwargs)
-        self.required = True
-        self.widget = forms.Textarea(attrs={'id':'editor'})
-        self.label  = _('content')
-        self.help_text = u''
-        self.initial = ''
-
-    def clean(self, value):
-        if len(value) < 10:
-            raise forms.ValidationError(_('question content must be > 10 characters'))
-
-        return value
-
-class TagNamesField(forms.CharField):
-    def __init__(self, *args, **kwargs):
-        super(TagNamesField, self).__init__(*args, **kwargs)
-        self.required = True
-        self.widget = forms.TextInput(attrs={'size' : 50, 'autocomplete' : 'off'})
-        self.max_length = 255
-        self.label  = _('tags')
-        #self.help_text = _('please use space to separate tags (this enables autocomplete feature)')
-        self.help_text = _('Tags are short keywords, with no spaces within. Up to five tags can be used.')
-        self.initial = ''
-
-    def clean(self, value):
-        value = super(TagNamesField, self).clean(value)
-        data = value.strip()
-        if len(data) < 1:
-            raise forms.ValidationError(_('tags are required'))
-
-        split_re = re.compile(r'[ ,]+')
-        list = split_re.split(data)
-        list_temp = []
-        if len(list) > 5:
-            raise forms.ValidationError(_('please use 5 tags or less'))
-        for tag in list:
-            if len(tag) > 20:
-                raise forms.ValidationError(_('tags must be shorter than 20 characters'))
-            #take tag regex from settings
-            tagname_re = re.compile(r'[a-z0-9]+')
-            if not tagname_re.match(tag):
-                raise forms.ValidationError(_('please use following characters in tags: letters \'a-z\', numbers, and characters \'.-_#\''))
-            # only keep one same tag
-            if tag not in list_temp and len(tag.strip()) > 0:
-                list_temp.append(tag)
-        return u' '.join(list_temp)
-
-class WikiField(forms.BooleanField):
-    def __init__(self, *args, **kwargs):
-        super(WikiField, self).__init__(*args, **kwargs)
-        self.required = False
-        self.label  = _('community wiki')
-        self.help_text = _('if you choose community wiki option, the question and answer do not generate points and name of author will not be shown')
-    def clean(self,value):
-        return value and settings.WIKI_ON
-
-class EmailNotifyField(forms.BooleanField):
-    def __init__(self, *args, **kwargs):
-        super(EmailNotifyField, self).__init__(*args, **kwargs)
-        self.required = False
-        self.widget.attrs['class'] = 'nomargin'
-
-class SummaryField(forms.CharField):
-    def __init__(self, *args, **kwargs):
-        super(SummaryField, self).__init__(*args, **kwargs)
-        self.required = False
-        self.widget = forms.TextInput(attrs={'size' : 50, 'autocomplete' : 'off'})
-        self.max_length = 300
-        self.label  = _('update summary:')
-        self.help_text = _('enter a brief summary of your revision (e.g. fixed spelling, grammar, improved style, this field is optional)')
-
-class ModerateUserForm(forms.ModelForm):
-    is_approved = forms.BooleanField(label=_("Automatically accept user's contributions for the email updates"),
-                                     required=False)
-
-    def clean_is_approved(self):
-        if 'is_approved' not in self.cleaned_data:
-            self.cleaned_data['is_approved'] = False
-        return self.cleaned_data['is_approved']
-
-    class Meta:
-        model = User
-        fields = ('is_approved',)
-
-class NotARobotForm(forms.Form):
-    recaptcha = ReCaptchaField()
-
-class FeedbackForm(forms.Form):
-    name = forms.CharField(label=_('Your name:'), required=False)
-    email = forms.EmailField(label=_('Email (not shared with anyone):'), required=False)
-    message = forms.CharField(label=_('Your message:'), max_length=800,widget=forms.Textarea(attrs={'cols':60}))
-    next = NextUrlField()
-
-class AskForm(forms.Form):
-    title  = TitleField()
-    text   = EditorField()
-    tags   = TagNamesField()
-    wiki = WikiField()
-
-    openid = forms.CharField(required=False, max_length=255, widget=forms.TextInput(attrs={'size' : 40, 'class':'openid-input'}))
-    user   = forms.CharField(required=False, max_length=255, widget=forms.TextInput(attrs={'size' : 35}))
-    email  = forms.CharField(required=False, max_length=255, widget=forms.TextInput(attrs={'size' : 35}))
-
-class AnswerForm(forms.Form):
-    text   = EditorField()
-    wiki   = WikiField()
-    openid = forms.CharField(required=False, max_length=255, widget=forms.TextInput(attrs={'size' : 40, 'class':'openid-input'}))
-    user   = forms.CharField(required=False, max_length=255, widget=forms.TextInput(attrs={'size' : 35}))
-    email  = forms.CharField(required=False, max_length=255, widget=forms.TextInput(attrs={'size' : 35}))
-    email_notify = EmailNotifyField()
-    def __init__(self, question, user, *args, **kwargs):
-        super(AnswerForm, self).__init__(*args, **kwargs)
-        self.fields['email_notify'].widget.attrs['id'] = 'question-subscribe-updates';
-        if question.wiki and settings.WIKI_ON:
-            self.fields['wiki'].initial = True
-        if user.is_authenticated():
-            if user in question.followed_by.all():
-                self.fields['email_notify'].initial = True
-                return
-        self.fields['email_notify'].initial = False
-
-
-class CloseForm(forms.Form):
-    reason = forms.ChoiceField(choices=CLOSE_REASONS)
-
-class RetagQuestionForm(forms.Form):
-    tags   = TagNamesField()
-    # initialize the default values
-    def __init__(self, question, *args, **kwargs):
-        super(RetagQuestionForm, self).__init__(*args, **kwargs)
-        self.fields['tags'].initial = question.tagnames
-
-class RevisionForm(forms.Form):
-    """
-    Lists revisions of a Question or Answer
-    """
-    revision = forms.ChoiceField(widget=forms.Select(attrs={'style' : 'width:520px'}))
-
-    def __init__(self, post, latest_revision, *args, **kwargs):
-        super(RevisionForm, self).__init__(*args, **kwargs)
-        revisions = post.revisions.all().values_list(
-            'revision', 'author__username', 'revised_at', 'summary')
-        date_format = '%c'
-        self.fields['revision'].choices = [
-            (r[0], u'%s - %s (%s) %s' % (r[0], r[1], r[2].strftime(date_format), r[3]))
-            for r in revisions]
-        self.fields['revision'].initial = latest_revision.revision
-
-class EditQuestionForm(forms.Form):
-    title  = TitleField()
-    text   = EditorField()
-    tags   = TagNamesField()
-    summary = SummaryField()
-
-    def __init__(self, question, revision, *args, **kwargs):
-        super(EditQuestionForm, self).__init__(*args, **kwargs)
-        self.fields['title'].initial = revision.title
-        self.fields['text'].initial = revision.text
-        self.fields['tags'].initial = revision.tagnames
-        # Once wiki mode is enabled, it can't be disabled
-        if not question.wiki:
-            self.fields['wiki'] = WikiField()
-
-class EditAnswerForm(forms.Form):
-    text = EditorField()
-    summary = SummaryField()
-
-    def __init__(self, answer, revision, *args, **kwargs):
-        super(EditAnswerForm, self).__init__(*args, **kwargs)
-        self.fields['text'].initial = revision.text
-
-class EditUserForm(forms.Form):
-    email = forms.EmailField(label=u'Email', help_text=_('this email does not have to be linked to gravatar'), required=True, max_length=255, widget=forms.TextInput(attrs={'size' : 35}))
-    #username = UserNameField(label=_('Screen name'))
-    realname = forms.CharField(label=_('Real name'), required=False, max_length=255, widget=forms.TextInput(attrs={'size' : 35}))
-    website = forms.URLField(label=_('Website'), required=False, max_length=255, widget=forms.TextInput(attrs={'size' : 35}))
-    city = forms.CharField(label=_('Location'), required=False, max_length=255, widget=forms.TextInput(attrs={'size' : 35}))
-    birthday = forms.DateField(label=_('Date of birth'), help_text=_('will not be shown, used to calculate age, format: YYYY-MM-DD'), required=False, widget=forms.TextInput(attrs={'size' : 35}))
-    about = forms.CharField(label=_('Profile'), required=False, widget=forms.Textarea(attrs={'cols' : 60}))
-
-    def __init__(self, user, *args, **kwargs):
-        super(EditUserForm, self).__init__(*args, **kwargs)
-        self.fields['username'].initial = user.username
-        self.fields['username'].user_instance = user
-        self.fields['email'].initial = user.email
-        self.fields['realname'].initial = user.real_name
-        self.fields['website'].initial = user.website
-        self.fields['city'].initial = user.location
-
-        if user.date_of_birth is not None:
-            self.fields['birthday'].initial = user.date_of_birth
-        else:
-            self.fields['birthday'].initial = '1990-01-01'
-        self.fields['about'].initial = user.about
-        self.user = user
-
-    def clean_email(self):
-        """For security reason one unique email in database"""
-        if self.user.email != self.cleaned_data['email']:
-            #todo dry it, there is a similar thing in openidauth
-            if settings.EMAIL_UNIQUE == True:
-                if 'email' in self.cleaned_data:
-                    try:
-                        user = User.objects.get(email = self.cleaned_data['email'])
-                    except User.DoesNotExist:
-                        return self.cleaned_data['email']
-                    except User.MultipleObjectsReturned:
-                        raise forms.ValidationError(_('this email has already been registered, please use another one'))
-                    raise forms.ValidationError(_('this email has already been registered, please use another one'))
-        return self.cleaned_data['email']
-
-class TagFilterSelectionForm(forms.ModelForm):
-    tag_filter_setting = forms.ChoiceField(choices=TAG_EMAIL_FILTER_CHOICES, #imported from forum/const.py
-                                            initial='ignored',
-                                            label=_('Choose email tag filter'),
-                                            widget=forms.RadioSelect)
-    class Meta:
-        model = User
-        fields = ('tag_filter_setting',)
-
-    def save(self):
-        before = self.instance.tag_filter_setting
-        super(TagFilterSelectionForm, self).save()
-        after = self.instance.tag_filter_setting #User.objects.get(pk=self.instance.id).tag_filter_setting
-        if before != after:
-            return True
-        return False
-
-class EditUserEmailFeedsForm(forms.Form):
-    WN = (('w',_('weekly')),('n',_('no email')))
-    DWN = (('d',_('daily')),('w',_('weekly')),('n',_('no email')))
-    FORM_TO_MODEL_MAP = {
-                'all_questions':'q_all',
-                'asked_by_me':'q_ask',
-                'answered_by_me':'q_ans',
-                'individually_selected':'q_sel',
-                }
-    NO_EMAIL_INITIAL = {
-                'all_questions':'n',
-                'asked_by_me':'n',
-                'answered_by_me':'n',
-                'individually_selected':'n',
-                }
-    asked_by_me = forms.ChoiceField(choices=DWN,initial='w',
-                            widget=forms.RadioSelect,
-                            label=_('Asked by me'))
-    answered_by_me = forms.ChoiceField(choices=DWN,initial='w',
-                            widget=forms.RadioSelect,
-                            label=_('Answered by me'))
-    individually_selected = forms.ChoiceField(choices=DWN,initial='w',
-                            widget=forms.RadioSelect,
-                            label=_('Individually selected'))
-    all_questions = forms.ChoiceField(choices=DWN,initial='w',
-                            widget=forms.RadioSelect,
-                            label=_('Entire forum (tag filtered)'),)
-
-    def set_initial_values(self,user=None):
-        KEY_MAP = dict([(v,k) for k,v in self.FORM_TO_MODEL_MAP.iteritems()])
-        if user != None:
-            settings = EmailFeedSetting.objects.filter(subscriber=user) 
-            initial_values = {}
-            for setting in settings:
-                feed_type = setting.feed_type
-                form_field = KEY_MAP[feed_type]
-                frequency = setting.frequency
-                initial_values[form_field] = frequency
-            self.initial = initial_values
-        return self
-
-    def reset(self):
-        self.cleaned_data['all_questions'] = 'n'
-        self.cleaned_data['asked_by_me'] = 'n'
-        self.cleaned_data['answered_by_me'] = 'n'
-        self.cleaned_data['individually_selected'] = 'n'
-        self.initial = self.NO_EMAIL_INITIAL
-        return self
-
-    def save(self,user,save_unbound=False):
-        """
-            with save_unbound==True will bypass form validation and save initial values
-        """
-        changed = False
-        for form_field, feed_type in self.FORM_TO_MODEL_MAP.items():
-            s, created = EmailFeedSetting.objects.get_or_create(subscriber=user,\
-                                                    feed_type=feed_type)
-            if save_unbound:
-                #just save initial values instead
-                if form_field in self.initial:
-                    new_value = self.initial[form_field]
-                else:
-                    new_value = self.fields[form_field].initial
-            else:
-                new_value = self.cleaned_data[form_field]
-            if s.frequency != new_value:
-                s.frequency = new_value
-                s.save()
-                changed = True
-            else:
-                if created:
-                    s.save()
-            if form_field == 'individually_selected':
-                feed_type = ContentType.objects.get_for_model(Question)
-                user.followed_questions.clear()
-        return changed
-
-
-class SimpleEmailSubscribeForm(forms.Form):
-    SIMPLE_SUBSCRIBE_CHOICES = (
-        ('y',_('okay, let\'s try!')),
-        ('n',_('no OSQA community email please, thanks'))
-    )
-    subscribe = forms.ChoiceField(widget=forms.widgets.RadioSelect(), \
-                                error_messages={'required':_('please choose one of the options above')},
-                                choices=SIMPLE_SUBSCRIBE_CHOICES)
-
-    def save(self,user=None):
-        EFF = EditUserEmailFeedsForm
-        if self.cleaned_data['subscribe'] == 'y':
-            email_settings_form = EFF()
-            logging.debug('%s wants to subscribe' % user.username)
-        else:
-            email_settings_form = EFF(initial=EFF.NO_EMAIL_INITIAL)
-        email_settings_form.save(user,save_unbound=True)
diff --git a/forum/models.py b/forum/models.py
index acde1033..2da8ef7b 100644
--- a/forum/models.py
+++ b/forum/models.py
@@ -22,7 +22,7 @@ if settings.USE_SPHINX_SEARCH == True:
     from djangosphinx.models import SphinxSearch
 
 from forum.managers import *
-from const import *
+from forum.const import *
 
 def get_object_comments(self):
     comments = self.comments.all().order_by('id')
@@ -619,58 +619,6 @@ class Activity(models.Model):
     class Meta:
         db_table = u'activity'
 
-class Book(models.Model):
-    """
-    Model for book info
-    """
-    user = models.ForeignKey(User)
-    title = models.CharField(max_length=255)
-    short_name = models.CharField(max_length=255)
-    author = models.CharField(max_length=255)
-    price = models.DecimalField(max_digits=6, decimal_places=2)
-    pages = models.SmallIntegerField()
-    published_at = models.DateTimeField()
-    publication = models.CharField(max_length=255)
-    cover_img = models.CharField(max_length=255)
-    tagnames = models.CharField(max_length=125)
-    added_at = models.DateTimeField()
-    last_edited_at = models.DateTimeField()
-    questions = models.ManyToManyField(Question, related_name='book', db_table='book_question')
-    
-    def get_absolute_url(self):
-        return reverse('book', args=[django_urlquote(slugify(self.short_name))])
-        
-    def __unicode__(self):
-        return self.title
-    class Meta:
-        db_table = u'book'
-
-class BookAuthorInfo(models.Model):
-    """
-    Model for book author info
-    """
-    user = models.ForeignKey(User)
-    book = models.ForeignKey(Book)
-    blog_url = models.CharField(max_length=255)
-    added_at = models.DateTimeField()
-    last_edited_at = models.DateTimeField()
-    
-    class Meta:
-        db_table = u'book_author_info'
-    
-class BookAuthorRss(models.Model):
-    """
-    Model for book author blog rss
-    """
-    user = models.ForeignKey(User)
-    book = models.ForeignKey(Book)
-    title = models.CharField(max_length=255)
-    url = models.CharField(max_length=255)
-    rss_created_at = models.DateTimeField()
-    added_at = models.DateTimeField()
-    
-    class Meta:
-        db_table = u'book_author_rss'
 
 class AnonymousEmail(models.Model):
     #validation key, if used
@@ -947,3 +895,61 @@ tags_updated.connect(record_update_tags, sender=Question)
 post_save.connect(record_favorite_question, sender=FavoriteQuestion)
 user_updated.connect(record_user_full_updated, sender=User)
 user_logged_in.connect(post_stored_anonymous_content)
+
+#todo later split this out to the books extension models
+#from django.db import models
+#from django.contrib.auth.models import User
+#from forum.models import Question
+
+class Book(models.Model):
+    """
+    Model for book info
+    """
+    user = models.ForeignKey(User)
+    title = models.CharField(max_length=255)
+    short_name = models.CharField(max_length=255)
+    author = models.CharField(max_length=255)
+    price = models.DecimalField(max_digits=6, decimal_places=2)
+    pages = models.SmallIntegerField()
+    published_at = models.DateTimeField()
+    publication = models.CharField(max_length=255)
+    cover_img = models.CharField(max_length=255)
+    tagnames = models.CharField(max_length=125)
+    added_at = models.DateTimeField()
+    last_edited_at = models.DateTimeField()
+    questions = models.ManyToManyField(Question, related_name='book', db_table='book_question')
+    
+    def get_absolute_url(self):
+        return reverse('book', args=[django_urlquote(slugify(self.short_name))])
+        
+    def __unicode__(self):
+        return self.title
+    class Meta:
+        db_table = u'book'
+
+class BookAuthorInfo(models.Model):
+    """
+    Model for book author info
+    """
+    user = models.ForeignKey(User)
+    book = models.ForeignKey(Book)
+    blog_url = models.CharField(max_length=255)
+    added_at = models.DateTimeField()
+    last_edited_at = models.DateTimeField()
+    
+    class Meta:
+        db_table = u'book_author_info'
+    
+class BookAuthorRss(models.Model):
+    """
+    Model for book author blog rss
+    """
+    user = models.ForeignKey(User)
+    book = models.ForeignKey(Book)
+    title = models.CharField(max_length=255)
+    url = models.CharField(max_length=255)
+    rss_created_at = models.DateTimeField()
+    added_at = models.DateTimeField()
+    
+    class Meta:
+        db_table = u'book_author_rss'
diff --git a/forum/models/models.py b/forum/models/models.py
new file mode 100644
index 00000000..acde1033
--- /dev/null
+++ b/forum/models/models.py
@@ -0,0 +1,949 @@
+# encoding:utf-8
+import datetime
+import hashlib
+from urllib import quote_plus, urlencode
+from django.db import models, IntegrityError
+from django.utils.http import urlquote  as django_urlquote
+from django.utils.html import strip_tags
+from django.core.urlresolvers import reverse
+from django.contrib.auth.models import User
+from django.contrib.contenttypes import generic
+from django.contrib.contenttypes.models import ContentType
+from django.template.defaultfilters import slugify
+from django.db.models.signals import post_delete, post_save, pre_save
+from django.utils.translation import ugettext as _
+from django.utils.safestring import mark_safe
+from django.contrib.sitemaps import ping_google
+import django.dispatch
+from django.conf import settings
+import logging
+
+if settings.USE_SPHINX_SEARCH == True:
+    from djangosphinx.models import SphinxSearch
+
+from forum.managers import *
+from const import *
+
+def get_object_comments(self):
+    comments = self.comments.all().order_by('id')
+    return comments
+
+def post_get_last_update_info(self):
+        when = self.added_at
+        who = self.author
+        if self.last_edited_at and self.last_edited_at > when:
+            when = self.last_edited_at
+            who = self.last_edited_by
+        comments = self.comments.all()
+        if len(comments) > 0:
+            for c in comments:
+                if c.added_at > when:
+                    when = c.added_at
+                    who = c.user
+        return when, who
+
+class EmailFeedSetting(models.Model):
+    DELTA_TABLE = {
+        'w':datetime.timedelta(7),
+        'd':datetime.timedelta(1),
+        'n':datetime.timedelta(-1),
+    }
+    FEED_TYPES = (
+                    ('q_all',_('Entire forum')),
+                    ('q_ask',_('Questions that I asked')),
+                    ('q_ans',_('Questions that I answered')),
+                    ('q_sel',_('Individually selected questions')),
+                    )
+    UPDATE_FREQUENCY = (
+                    ('w',_('Weekly')),
+                    ('d',_('Daily')),
+                    ('n',_('No email')),
+                   )
+    subscriber = models.ForeignKey(User)
+    feed_type = models.CharField(max_length=16,choices=FEED_TYPES)
+    frequency = models.CharField(max_length=8,choices=UPDATE_FREQUENCY,default='n')
+    added_at = models.DateTimeField(auto_now_add=True)
+    reported_at = models.DateTimeField(null=True)
+
+    def save(self,*args,**kwargs):
+        type = self.feed_type
+        subscriber = self.subscriber
+        similar = self.__class__.objects.filter(feed_type=type,subscriber=subscriber).exclude(pk=self.id)
+        if len(similar) > 0:
+            raise IntegrityError('email feed setting already exists')
+        super(EmailFeedSetting,self).save(*args,**kwargs)
+
+class Tag(models.Model):
+    name       = models.CharField(max_length=255, unique=True)
+    created_by = models.ForeignKey(User, related_name='created_tags')
+    deleted         = models.BooleanField(default=False)
+    deleted_at      = models.DateTimeField(null=True, blank=True)
+    deleted_by      = models.ForeignKey(User, null=True, blank=True, related_name='deleted_tags')
+    # Denormalised data
+    used_count = models.PositiveIntegerField(default=0)
+
+    objects = TagManager()
+
+    class Meta:
+        db_table = u'tag'
+        ordering = ('-used_count', 'name')
+
+    def __unicode__(self):
+        return self.name
+
+class Comment(models.Model):
+    content_type   = models.ForeignKey(ContentType)
+    object_id      = models.PositiveIntegerField()
+    content_object = generic.GenericForeignKey('content_type', 'object_id')
+    user           = models.ForeignKey(User, related_name='comments')
+    comment        = models.CharField(max_length=300)
+    added_at       = models.DateTimeField(default=datetime.datetime.now)
+
+    class Meta:
+        ordering = ('-added_at',)
+        db_table = u'comment'
+
+    def save(self,**kwargs):
+        super(Comment,self).save(**kwargs)
+        try:
+            ping_google()
+        except Exception:
+            logging.debug('problem pinging google did you register you sitemap with google?')
+
+    def __unicode__(self):
+        return self.comment
+
+class Vote(models.Model):
+    VOTE_UP = +1
+    VOTE_DOWN = -1
+    VOTE_CHOICES = (
+        (VOTE_UP,   u'Up'),
+        (VOTE_DOWN, u'Down'),
+    )
+
+    content_type   = models.ForeignKey(ContentType)
+    object_id      = models.PositiveIntegerField()
+    content_object = generic.GenericForeignKey('content_type', 'object_id')
+    user           = models.ForeignKey(User, related_name='votes')
+    vote           = models.SmallIntegerField(choices=VOTE_CHOICES)
+    voted_at       = models.DateTimeField(default=datetime.datetime.now)
+
+    objects = VoteManager()
+
+    class Meta:
+        unique_together = ('content_type', 'object_id', 'user')
+        db_table = u'vote'
+    def __unicode__(self):
+        return '[%s] voted at %s: %s' %(self.user, self.voted_at, self.vote)
+
+    def is_upvote(self):
+        return self.vote == self.VOTE_UP
+
+    def is_downvote(self):
+        return self.vote == self.VOTE_DOWN
+
+class FlaggedItem(models.Model):
+    """A flag on a Question or Answer indicating offensive content."""
+    content_type   = models.ForeignKey(ContentType)
+    object_id      = models.PositiveIntegerField()
+    content_object = generic.GenericForeignKey('content_type', 'object_id')
+    user           = models.ForeignKey(User, related_name='flagged_items')
+    flagged_at     = models.DateTimeField(default=datetime.datetime.now)
+
+    objects = FlaggedItemManager()
+
+    class Meta:
+        unique_together = ('content_type', 'object_id', 'user')
+        db_table = u'flagged_item'
+    def __unicode__(self):
+        return '[%s] flagged at %s' %(self.user, self.flagged_at)
+
+class Question(models.Model):
+    title    = models.CharField(max_length=300)
+    author   = models.ForeignKey(User, related_name='questions')
+    added_at = models.DateTimeField(default=datetime.datetime.now)
+    tags     = models.ManyToManyField(Tag, related_name='questions')
+    # Status
+    wiki            = models.BooleanField(default=False)
+    wikified_at     = models.DateTimeField(null=True, blank=True)
+    answer_accepted = models.BooleanField(default=False)
+    closed          = models.BooleanField(default=False)
+    closed_by       = models.ForeignKey(User, null=True, blank=True, related_name='closed_questions')
+    closed_at       = models.DateTimeField(null=True, blank=True)
+    close_reason    = models.SmallIntegerField(choices=CLOSE_REASONS, null=True, blank=True)
+    deleted         = models.BooleanField(default=False)
+    deleted_at      = models.DateTimeField(null=True, blank=True)
+    deleted_by      = models.ForeignKey(User, null=True, blank=True, related_name='deleted_questions')
+    locked          = models.BooleanField(default=False)
+    locked_by       = models.ForeignKey(User, null=True, blank=True, related_name='locked_questions')
+    locked_at       = models.DateTimeField(null=True, blank=True)
+    followed_by     = models.ManyToManyField(User, related_name='followed_questions')
+    # Denormalised data
+    score                = models.IntegerField(default=0)
+    vote_up_count        = models.IntegerField(default=0)
+    vote_down_count      = models.IntegerField(default=0)
+    answer_count         = models.PositiveIntegerField(default=0)
+    comment_count        = models.PositiveIntegerField(default=0)
+    view_count           = models.PositiveIntegerField(default=0)
+    offensive_flag_count = models.SmallIntegerField(default=0)
+    favourite_count      = models.PositiveIntegerField(default=0)
+    last_edited_at       = models.DateTimeField(null=True, blank=True)
+    last_edited_by       = models.ForeignKey(User, null=True, blank=True, related_name='last_edited_questions')
+    last_activity_at     = models.DateTimeField(default=datetime.datetime.now)
+    last_activity_by     = models.ForeignKey(User, related_name='last_active_in_questions')
+    tagnames             = models.CharField(max_length=125)
+    summary              = models.CharField(max_length=180)
+    html                 = models.TextField()
+    comments             = generic.GenericRelation(Comment)
+    votes                = generic.GenericRelation(Vote)
+    flagged_items        = generic.GenericRelation(FlaggedItem)
+
+    if settings.USE_SPHINX_SEARCH == True:
+        search = SphinxSearch(
+                           index=' '.join(settings.SPHINX_SEARCH_INDICES),
+                           mode='SPH_MATCH_ALL',
+                        )
+        logging.debug('have sphinx search')
+
+    objects = QuestionManager()
+
+    def delete(self):
+        super(Question, self).delete()
+        try:
+            ping_google()
+        except Exception:
+            logging.debug('problem pinging google did you register you sitemap with google?')
+
+    def save(self, **kwargs):
+        """
+        Overridden to manually manage addition of tags when the object
+        is first saved.
+
+        This is required as we're using ``tagnames`` as the sole means of
+        adding and editing tags.
+        """
+        initial_addition = (self.id is None)
+        super(Question, self).save(**kwargs)
+        try:
+            ping_google()
+        except Exception:
+            logging.debug('problem pinging google did you register you sitemap with google?')
+        if initial_addition:
+            tags = Tag.objects.get_or_create_multiple(self.tagname_list(),
+                                                      self.author)
+            self.tags.add(*tags)
+            Tag.objects.update_use_counts(tags)
+
+    def tagname_list(self):
+        """Creates a list of Tag names from the ``tagnames`` attribute."""
+        return [name for name in self.tagnames.split(u' ')]
+
+    def tagname_meta_generator(self):
+        return u','.join([unicode(tag) for tag in self.tagname_list()])
+
+    def get_absolute_url(self):
+        return '%s%s' % (reverse('question', args=[self.id]), django_urlquote(slugify(self.title)))
+
+    def has_favorite_by_user(self, user):
+        if not user.is_authenticated():
+            return False
+        return FavoriteQuestion.objects.filter(question=self, user=user).count() > 0
+
+    def get_answer_count_by_user(self, user_id):
+        query_set = Answer.objects.filter(author__id=user_id)
+        return query_set.filter(question=self).count()
+
+    def get_question_title(self):
+        if self.closed:
+            attr = CONST['closed'] 
+        elif self.deleted:
+            attr = CONST['deleted']
+        else:
+            attr = None
+        if attr is not None:
+            return u'%s %s' % (self.title, attr)
+        else:
+            return self.title
+
+    def get_revision_url(self):
+        return reverse('question_revisions', args=[self.id])
+
+    def get_latest_revision(self):
+        return self.revisions.all()[0]
+
+    get_comments = get_object_comments
+
+    def get_last_update_info(self):
+
+        when, who = post_get_last_update_info(self)
+
+        answers = self.answers.all()
+        if len(answers) > 0:
+            for a in answers:
+                a_when, a_who = a.get_last_update_info()
+                if a_when > when:
+                    when = a_when
+                    who = a_who
+
+        return when, who
+
+    def get_update_summary(self,last_reported_at=None,recipient_email=''):
+        edited = False 
+        if self.last_edited_at and self.last_edited_at > last_reported_at:
+            if self.last_edited_by.email != recipient_email:
+                edited = True 
+        comments = []
+        for comment in self.comments.all():
+            if comment.added_at > last_reported_at and comment.user.email != recipient_email:
+                comments.append(comment)
+        new_answers = []
+        answer_comments = []
+        modified_answers = []
+        commented_answers = []
+        import sets
+        commented_answers = sets.Set([])
+        for answer in self.answers.all():
+            if (answer.added_at > last_reported_at and answer.author.email != recipient_email):
+                new_answers.append(answer)
+            if (answer.last_edited_at 
+                and answer.last_edited_at > last_reported_at 
+                and answer.last_edited_by.email != recipient_email):
+                modified_answers.append(answer)
+            for comment in answer.comments.all():
+                if comment.added_at > last_reported_at and comment.user.email != recipient_email:
+                    commented_answers.add(answer)
+                    answer_comments.append(comment)
+
+        #create the report
+        if edited or new_answers or modified_answers or answer_comments:
+            out = [] 
+            if edited:
+                out.append(_('%(author)s modified the question') % {'author':self.last_edited_by.username})
+            if new_answers:
+                names = sets.Set(map(lambda x: x.author.username,new_answers))
+                people = ', '.join(names)
+                out.append(_('%(people)s posted %(new_answer_count)s new answers') \
+                                % {'new_answer_count':len(new_answers),'people':people})
+            if comments:
+                names = sets.Set(map(lambda x: x.user.username,comments))
+                people = ', '.join(names)
+                out.append(_('%(people)s commented the question') % {'people':people})
+            if answer_comments:
+                names = sets.Set(map(lambda x: x.user.username,answer_comments))
+                people = ', '.join(names)
+                if len(commented_answers) > 1:
+                    out.append(_('%(people)s commented answers') % {'people':people})
+                else:
+                    out.append(_('%(people)s commented an answer') % {'people':people})
+            url = settings.APP_URL + self.get_absolute_url()
+            retval = '<a href="%s">%s</a>:<br>\n' % (url,self.title)
+            out = map(lambda x: '<li>' + x + '</li>',out)
+            retval += '<ul>' + '\n'.join(out) + '</ul><br>\n'
+            return retval
+        else:
+            return None
+
+    def __unicode__(self):
+        return self.title
+
+    class Meta:
+        db_table = u'question'
+
+class QuestionView(models.Model):
+    question = models.ForeignKey(Question, related_name='viewed')
+    who = models.ForeignKey(User, related_name='question_views')
+    when = models.DateTimeField()
+
+class FavoriteQuestion(models.Model):
+    """A favorite Question of a User."""
+    question      = models.ForeignKey(Question)
+    user          = models.ForeignKey(User, related_name='user_favorite_questions')
+    added_at = models.DateTimeField(default=datetime.datetime.now)
+    class Meta:
+        db_table = u'favorite_question'
+    def __unicode__(self):
+        return '[%s] favorited at %s' %(self.user, self.added_at)
+
+class MarkedTag(models.Model):
+    TAG_MARK_REASONS = (('good',_('interesting')),('bad',_('ignored')))
+    tag = models.ForeignKey(Tag, related_name='user_selections')
+    user = models.ForeignKey(User, related_name='tag_selections')
+    reason = models.CharField(max_length=16, choices=TAG_MARK_REASONS)
+
+class QuestionRevision(models.Model):
+    """A revision of a Question."""
+    question   = models.ForeignKey(Question, related_name='revisions')
+    revision   = models.PositiveIntegerField(blank=True)
+    title      = models.CharField(max_length=300)
+    author     = models.ForeignKey(User, related_name='question_revisions')
+    revised_at = models.DateTimeField()
+    tagnames   = models.CharField(max_length=125)
+    summary    = models.CharField(max_length=300, blank=True)
+    text       = models.TextField()
+
+    class Meta:
+        db_table = u'question_revision'
+        ordering = ('-revision',)
+
+    def get_question_title(self):
+        return self.question.title
+
+    def get_absolute_url(self):
+        #print 'in QuestionRevision.get_absolute_url()'
+        return reverse('question_revisions', args=[self.question.id])
+
+    def save(self, **kwargs):
+        """Looks up the next available revision number."""
+        if not self.revision:
+            self.revision = QuestionRevision.objects.filter(
+                question=self.question).values_list('revision',
+                                                    flat=True)[0] + 1
+        super(QuestionRevision, self).save(**kwargs)
+
+    def __unicode__(self):
+        return u'revision %s of %s' % (self.revision, self.title)
+
+class AnonymousAnswer(models.Model):
+    question = models.ForeignKey(Question, related_name='anonymous_answers')
+    session_key = models.CharField(max_length=40)  #session id for anonymous questions
+    wiki = models.BooleanField(default=False)
+    added_at = models.DateTimeField(default=datetime.datetime.now)
+    ip_addr = models.IPAddressField(max_length=21) #allow high port numbers
+    author = models.ForeignKey(User,null=True)
+    text = models.TextField()
+    summary = models.CharField(max_length=180)
+
+    def publish(self,user):
+        from forum.views import create_new_answer
+        added_at = datetime.datetime.now()
+        #print user.id
+        create_new_answer(question=self.question,wiki=self.wiki,
+                            added_at=added_at,text=self.text,
+                            author=user)
+        self.delete()
+
+class AnonymousQuestion(models.Model):
+    title = models.CharField(max_length=300)
+    session_key = models.CharField(max_length=40)  #session id for anonymous questions
+    text = models.TextField()
+    summary = models.CharField(max_length=180)
+    tagnames = models.CharField(max_length=125)
+    wiki = models.BooleanField(default=False)
+    added_at = models.DateTimeField(default=datetime.datetime.now)
+    ip_addr = models.IPAddressField(max_length=21) #allow high port numbers
+    author = models.ForeignKey(User,null=True)
+
+    def publish(self,user):
+        from forum.views import create_new_question
+        added_at = datetime.datetime.now()
+        create_new_question(title=self.title, author=user, added_at=added_at,
+                                wiki=self.wiki, tagnames=self.tagnames,
+                                summary=self.summary, text=self.text)
+        self.delete()
+
+class Answer(models.Model):
+    question = models.ForeignKey(Question, related_name='answers')
+    author   = models.ForeignKey(User, related_name='answers')
+    added_at = models.DateTimeField(default=datetime.datetime.now)
+    # Status
+    wiki        = models.BooleanField(default=False)
+    wikified_at = models.DateTimeField(null=True, blank=True)
+    accepted    = models.BooleanField(default=False)
+    accepted_at = models.DateTimeField(null=True, blank=True)
+    deleted     = models.BooleanField(default=False)
+    deleted_by  = models.ForeignKey(User, null=True, blank=True, related_name='deleted_answers')
+    locked      = models.BooleanField(default=False)
+    locked_by   = models.ForeignKey(User, null=True, blank=True, related_name='locked_answers')
+    locked_at   = models.DateTimeField(null=True, blank=True)
+    # Denormalised data
+    score                = models.IntegerField(default=0)
+    vote_up_count        = models.IntegerField(default=0)
+    vote_down_count      = models.IntegerField(default=0)
+    comment_count        = models.PositiveIntegerField(default=0)
+    offensive_flag_count = models.SmallIntegerField(default=0)
+    last_edited_at       = models.DateTimeField(null=True, blank=True)
+    last_edited_by       = models.ForeignKey(User, null=True, blank=True, related_name='last_edited_answers')
+    html                 = models.TextField()
+    comments             = generic.GenericRelation(Comment)
+    votes                = generic.GenericRelation(Vote)
+    flagged_items        = generic.GenericRelation(FlaggedItem)
+
+    objects = AnswerManager()
+
+    get_comments = get_object_comments
+    get_last_update_info = post_get_last_update_info
+
+    def save(self,**kwargs):
+        super(Answer,self).save(**kwargs)
+        try: 
+            ping_google()
+        except Exception:
+            logging.debug('problem pinging google did you register you sitemap with google?')
+
+    def get_user_vote(self, user):
+	if user.__class__.__name__ == "AnonymousUser":
+	    return None
+
+        votes = self.votes.filter(user=user)
+        if votes and votes.count() > 0:
+            return votes[0]
+        else:
+            return None
+
+    def get_latest_revision(self):
+        return self.revisions.all()[0]
+
+    def get_question_title(self):
+        return self.question.title
+
+    def get_absolute_url(self):
+        return '%s%s#%s' % (reverse('question', args=[self.question.id]), django_urlquote(slugify(self.question.title)), self.id)
+
+    class Meta:
+        db_table = u'answer'
+
+    def __unicode__(self):
+        return self.html
+
+class AnswerRevision(models.Model):
+    """A revision of an Answer."""
+    answer     = models.ForeignKey(Answer, related_name='revisions')
+    revision   = models.PositiveIntegerField()
+    author     = models.ForeignKey(User, related_name='answer_revisions')
+    revised_at = models.DateTimeField()
+    summary    = models.CharField(max_length=300, blank=True)
+    text       = models.TextField()
+
+    def get_absolute_url(self):
+        return reverse('answer_revisions', kwargs={'id':self.answer.id})
+
+    def get_question_title(self):
+        return self.answer.question.title
+
+    class Meta:
+        db_table = u'answer_revision'
+        ordering = ('-revision',)
+
+    def save(self, **kwargs):
+        """Looks up the next available revision number if not set."""
+        if not self.revision:
+            self.revision = AnswerRevision.objects.filter(
+                answer=self.answer).values_list('revision',
+                                                flat=True)[0] + 1
+        super(AnswerRevision, self).save(**kwargs)
+
+class Badge(models.Model):
+    """Awarded for notable actions performed on the site by Users."""
+    GOLD = 1
+    SILVER = 2
+    BRONZE = 3
+    TYPE_CHOICES = (
+        (GOLD,   _('gold')),
+        (SILVER, _('silver')),
+        (BRONZE, _('bronze')),
+    )
+
+    name        = models.CharField(max_length=50)
+    type        = models.SmallIntegerField(choices=TYPE_CHOICES)
+    slug        = models.SlugField(max_length=50, blank=True)
+    description = models.CharField(max_length=300)
+    multiple    = models.BooleanField(default=False)
+    # Denormalised data
+    awarded_count = models.PositiveIntegerField(default=0)
+
+    class Meta:
+        db_table = u'badge'
+        ordering = ('name',)
+        unique_together = ('name', 'type')
+
+    def __unicode__(self):
+        return u'%s: %s' % (self.get_type_display(), self.name)
+
+    def save(self, **kwargs):
+        if not self.slug:
+            self.slug = self.name#slugify(self.name)
+        super(Badge, self).save(**kwargs)
+
+    def get_absolute_url(self):
+        return '%s%s/' % (reverse('badge', args=[self.id]), self.slug)
+
+class Award(models.Model):
+    """The awarding of a Badge to a User."""
+    user       = models.ForeignKey(User, related_name='award_user')
+    badge      = models.ForeignKey(Badge, related_name='award_badge')
+    content_type   = models.ForeignKey(ContentType)
+    object_id      = models.PositiveIntegerField()
+    content_object = generic.GenericForeignKey('content_type', 'object_id')
+    awarded_at = models.DateTimeField(default=datetime.datetime.now)
+    notified   = models.BooleanField(default=False)
+    objects = AwardManager()
+    
+    def __unicode__(self):
+        return u'[%s] is awarded a badge [%s] at %s' % (self.user.username, self.badge.name, self.awarded_at)
+
+    class Meta:
+        db_table = u'award'
+
+class Repute(models.Model):
+    """The reputation histories for user"""
+    user     = models.ForeignKey(User)
+    positive = models.SmallIntegerField(default=0)
+    negative = models.SmallIntegerField(default=0)
+    question = models.ForeignKey(Question)
+    reputed_at = models.DateTimeField(default=datetime.datetime.now)
+    reputation_type = models.SmallIntegerField(choices=TYPE_REPUTATION)
+    reputation = models.IntegerField(default=1)
+    objects = ReputeManager()
+
+    def __unicode__(self):
+        return u'[%s]\' reputation changed at %s' % (self.user.username, self.reputed_at)
+
+    class Meta:
+        db_table = u'repute'
+
+class Activity(models.Model):
+    """
+    We keep some history data for user activities
+    """
+    user = models.ForeignKey(User)
+    activity_type = models.SmallIntegerField(choices=TYPE_ACTIVITY)
+    active_at = models.DateTimeField(default=datetime.datetime.now)
+    content_type   = models.ForeignKey(ContentType)
+    object_id      = models.PositiveIntegerField()
+    content_object = generic.GenericForeignKey('content_type', 'object_id')
+    is_auditted    = models.BooleanField(default=False)
+
+    def __unicode__(self):
+        return u'[%s] was active at %s' % (self.user.username, self.active_at)
+
+    class Meta:
+        db_table = u'activity'
+
+class Book(models.Model):
+    """
+    Model for book info
+    """
+    user = models.ForeignKey(User)
+    title = models.CharField(max_length=255)
+    short_name = models.CharField(max_length=255)
+    author = models.CharField(max_length=255)
+    price = models.DecimalField(max_digits=6, decimal_places=2)
+    pages = models.SmallIntegerField()
+    published_at = models.DateTimeField()
+    publication = models.CharField(max_length=255)
+    cover_img = models.CharField(max_length=255)
+    tagnames = models.CharField(max_length=125)
+    added_at = models.DateTimeField()
+    last_edited_at = models.DateTimeField()
+    questions = models.ManyToManyField(Question, related_name='book', db_table='book_question')
+    
+    def get_absolute_url(self):
+        return reverse('book', args=[django_urlquote(slugify(self.short_name))])
+        
+    def __unicode__(self):
+        return self.title
+    class Meta:
+        db_table = u'book'
+
+class BookAuthorInfo(models.Model):
+    """
+    Model for book author info
+    """
+    user = models.ForeignKey(User)
+    book = models.ForeignKey(Book)
+    blog_url = models.CharField(max_length=255)
+    added_at = models.DateTimeField()
+    last_edited_at = models.DateTimeField()
+    
+    class Meta:
+        db_table = u'book_author_info'
+    
+class BookAuthorRss(models.Model):
+    """
+    Model for book author blog rss
+    """
+    user = models.ForeignKey(User)
+    book = models.ForeignKey(Book)
+    title = models.CharField(max_length=255)
+    url = models.CharField(max_length=255)
+    rss_created_at = models.DateTimeField()
+    added_at = models.DateTimeField()
+    
+    class Meta:
+        db_table = u'book_author_rss'
+
+class AnonymousEmail(models.Model):
+    #validation key, if used
+    key = models.CharField(max_length=32)
+    email = models.EmailField(null=False,unique=True)
+    isvalid = models.BooleanField(default=False)
+
+# User extend properties
+QUESTIONS_PER_PAGE_CHOICES = (
+   (10, u'10'),
+   (30, u'30'),
+   (50, u'50'),
+)
+
+def user_is_username_taken(cls,username):
+    try:
+        cls.objects.get(username=username)
+        return True
+    except cls.MultipleObjectsReturned:
+        return True
+    except cls.DoesNotExist:
+        return False
+
+def user_get_q_sel_email_feed_frequency(self):
+    #print 'looking for frequency for user %s' % self
+    try:
+        feed_setting = EmailFeedSetting.objects.get(subscriber=self,feed_type='q_sel')
+    except Exception, e:
+        #print 'have error %s' % e.message
+        raise e
+    #print 'have freq=%s' % feed_setting.frequency
+    return feed_setting.frequency
+
+User.add_to_class('is_approved', models.BooleanField(default=False))
+User.add_to_class('email_isvalid', models.BooleanField(default=False))
+User.add_to_class('email_key', models.CharField(max_length=32, null=True))
+User.add_to_class('reputation', models.PositiveIntegerField(default=1))
+User.add_to_class('gravatar', models.CharField(max_length=32))
+User.add_to_class('favorite_questions',
+                  models.ManyToManyField(Question, through=FavoriteQuestion,
+                                         related_name='favorited_by'))
+User.add_to_class('badges', models.ManyToManyField(Badge, through=Award,
+                                                   related_name='awarded_to'))
+User.add_to_class('gold', models.SmallIntegerField(default=0))
+User.add_to_class('silver', models.SmallIntegerField(default=0))
+User.add_to_class('bronze', models.SmallIntegerField(default=0))
+User.add_to_class('questions_per_page',
+                  models.SmallIntegerField(choices=QUESTIONS_PER_PAGE_CHOICES, default=10))
+User.add_to_class('last_seen',
+                  models.DateTimeField(default=datetime.datetime.now))
+User.add_to_class('real_name', models.CharField(max_length=100, blank=True))
+User.add_to_class('website', models.URLField(max_length=200, blank=True))
+User.add_to_class('location', models.CharField(max_length=100, blank=True))
+User.add_to_class('date_of_birth', models.DateField(null=True, blank=True))
+User.add_to_class('about', models.TextField(blank=True))
+User.add_to_class('is_username_taken',classmethod(user_is_username_taken))
+User.add_to_class('get_q_sel_email_feed_frequency',user_get_q_sel_email_feed_frequency)
+User.add_to_class('hide_ignored_questions', models.BooleanField(default=False))
+User.add_to_class('tag_filter_setting', 
+                    models.CharField(
+                                        max_length=16, 
+                                        choices=TAG_EMAIL_FILTER_CHOICES, 
+                                        default='ignored'
+                                     )
+                 )
+
+# custom signal
+tags_updated = django.dispatch.Signal(providing_args=["question"])
+edit_question_or_answer = django.dispatch.Signal(providing_args=["instance", "modified_by"])
+delete_post_or_answer = django.dispatch.Signal(providing_args=["instance", "deleted_by"])
+mark_offensive = django.dispatch.Signal(providing_args=["instance", "mark_by"])
+user_updated = django.dispatch.Signal(providing_args=["instance", "updated_by"])
+user_logged_in = django.dispatch.Signal(providing_args=["session"])
+
+
+def get_messages(self):
+    messages = []
+    for m in self.message_set.all():
+        messages.append(m.message)
+    return messages
+
+def delete_messages(self):
+    self.message_set.all().delete()
+
+def get_profile_url(self):
+    """Returns the URL for this User's profile."""
+    return '%s%s/' % (reverse('user', args=[self.id]), slugify(self.username))
+
+def get_profile_link(self):
+    profile_link = u'<a href="%s">%s</a>' % (self.get_profile_url(),self.username)
+    logging.debug('in get profile link %s' % profile_link)
+    return mark_safe(profile_link)
+
+User.add_to_class('get_profile_url', get_profile_url)
+User.add_to_class('get_profile_link', get_profile_link)
+User.add_to_class('get_messages', get_messages)
+User.add_to_class('delete_messages', delete_messages)
+
+def calculate_gravatar_hash(instance, **kwargs):
+    """Calculates a User's gravatar hash from their email address."""
+    if kwargs.get('raw', False):
+        return
+    instance.gravatar = hashlib.md5(instance.email).hexdigest()
+
+def record_ask_event(instance, created, **kwargs):
+    if created:
+        activity = Activity(user=instance.author, active_at=instance.added_at, content_object=instance, activity_type=TYPE_ACTIVITY_ASK_QUESTION)
+        activity.save()
+
+def record_answer_event(instance, created, **kwargs):
+    if created:
+        activity = Activity(user=instance.author, active_at=instance.added_at, content_object=instance, activity_type=TYPE_ACTIVITY_ANSWER)
+        activity.save()
+
+def record_comment_event(instance, created, **kwargs):
+    if created:
+        from django.contrib.contenttypes.models import ContentType
+        question_type = ContentType.objects.get_for_model(Question)
+        question_type_id = question_type.id
+        if (instance.content_type_id == question_type_id): 
+            type = TYPE_ACTIVITY_COMMENT_QUESTION 
+        else:
+            type = TYPE_ACTIVITY_COMMENT_ANSWER
+        activity = Activity(user=instance.user, active_at=instance.added_at, content_object=instance, activity_type=type)
+        activity.save()
+
+def record_revision_question_event(instance, created, **kwargs):
+    if created and instance.revision <> 1:
+        activity = Activity(user=instance.author, active_at=instance.revised_at, content_object=instance, activity_type=TYPE_ACTIVITY_UPDATE_QUESTION)
+        activity.save()
+
+def record_revision_answer_event(instance, created, **kwargs):
+    if created and instance.revision <> 1:
+        activity = Activity(user=instance.author, active_at=instance.revised_at, content_object=instance, activity_type=TYPE_ACTIVITY_UPDATE_ANSWER)
+        activity.save()
+
+def record_award_event(instance, created, **kwargs):
+    """
+    After we awarded a badge to user, we need to record this activity and notify user.
+    We also recaculate awarded_count of this badge and user information.
+    """
+    if created:
+        activity = Activity(user=instance.user, active_at=instance.awarded_at, content_object=instance,
+            activity_type=TYPE_ACTIVITY_PRIZE)
+        activity.save()
+
+        instance.badge.awarded_count += 1
+        instance.badge.save()
+
+        if instance.badge.type == Badge.GOLD:
+            instance.user.gold += 1
+        if instance.badge.type == Badge.SILVER:
+            instance.user.silver += 1
+        if instance.badge.type == Badge.BRONZE:
+            instance.user.bronze += 1
+        instance.user.save()
+
+def notify_award_message(instance, created, **kwargs):
+    """
+    Notify users when they have been awarded badges by using Django message.
+    """
+    if created:
+        user = instance.user
+        user.message_set.create(message=u"Congratulations, you have received a badge '%s'" % instance.badge.name)
+
+def record_answer_accepted(instance, created, **kwargs):
+    """
+    when answer is accepted, we record this for question author - who accepted it.
+    """
+    if not created and instance.accepted:
+        activity = Activity(user=instance.question.author, active_at=datetime.datetime.now(), \
+            content_object=instance, activity_type=TYPE_ACTIVITY_MARK_ANSWER)
+        activity.save()
+
+def update_last_seen(instance, created, **kwargs):
+    """
+    when user has activities, we update 'last_seen' time stamp for him
+    """
+    user = instance.user
+    user.last_seen = datetime.datetime.now()
+    user.save()
+
+def record_vote(instance, created, **kwargs):
+    """
+    when user have voted
+    """
+    if created:
+        if instance.vote == 1:
+            vote_type = TYPE_ACTIVITY_VOTE_UP
+        else:
+            vote_type = TYPE_ACTIVITY_VOTE_DOWN
+
+        activity = Activity(user=instance.user, active_at=instance.voted_at, content_object=instance, activity_type=vote_type)
+        activity.save()
+
+def record_cancel_vote(instance, **kwargs):
+    """
+    when user canceled vote, the vote will be deleted.
+    """
+    activity = Activity(user=instance.user, active_at=datetime.datetime.now(), content_object=instance, activity_type=TYPE_ACTIVITY_CANCEL_VOTE)
+    activity.save()
+
+def record_delete_question(instance, delete_by, **kwargs):
+    """
+    when user deleted the question
+    """
+    if instance.__class__ == "Question":
+        activity_type = TYPE_ACTIVITY_DELETE_QUESTION
+    else:
+        activity_type = TYPE_ACTIVITY_DELETE_ANSWER
+
+    activity = Activity(user=delete_by, active_at=datetime.datetime.now(), content_object=instance, activity_type=activity_type)
+    activity.save()
+
+def record_mark_offensive(instance, mark_by, **kwargs):
+    activity = Activity(user=mark_by, active_at=datetime.datetime.now(), content_object=instance, activity_type=TYPE_ACTIVITY_MARK_OFFENSIVE)
+    activity.save()
+
+def record_update_tags(question, **kwargs):
+    """
+    when user updated tags of the question
+    """
+    activity = Activity(user=question.author, active_at=datetime.datetime.now(), content_object=question, activity_type=TYPE_ACTIVITY_UPDATE_TAGS)
+    activity.save()
+
+def record_favorite_question(instance, created, **kwargs):
+    """
+    when user add the question in him favorite questions list.
+    """
+    if created:
+        activity = Activity(user=instance.user, active_at=datetime.datetime.now(), content_object=instance, activity_type=TYPE_ACTIVITY_FAVORITE)
+        activity.save()
+
+def record_user_full_updated(instance, **kwargs):
+    activity = Activity(user=instance, active_at=datetime.datetime.now(), content_object=instance, activity_type=TYPE_ACTIVITY_USER_FULL_UPDATED)
+    activity.save()
+
+def post_stored_anonymous_content(sender,user,session_key,signal,*args,**kwargs):
+    aq_list = AnonymousQuestion.objects.filter(session_key = session_key)
+    aa_list = AnonymousAnswer.objects.filter(session_key = session_key)
+    import settings
+    if settings.EMAIL_VALIDATION == 'on':#add user to the record
+        for aq in aq_list:
+            aq.author = user
+            aq.save()
+        for aa in aa_list:
+            aa.author = user
+            aa.save()
+        #maybe add pending posts message?
+    else: #just publish the questions
+        for aq in aq_list:
+            aq.publish(user)
+        for aa in aa_list:
+            aa.publish(user)
+
+#signal for User modle save changes
+pre_save.connect(calculate_gravatar_hash, sender=User)
+post_save.connect(record_ask_event, sender=Question)
+post_save.connect(record_answer_event, sender=Answer)
+post_save.connect(record_comment_event, sender=Comment)
+post_save.connect(record_revision_question_event, sender=QuestionRevision)
+post_save.connect(record_revision_answer_event, sender=AnswerRevision)
+post_save.connect(record_award_event, sender=Award)
+post_save.connect(notify_award_message, sender=Award)
+post_save.connect(record_answer_accepted, sender=Answer)
+post_save.connect(update_last_seen, sender=Activity)
+post_save.connect(record_vote, sender=Vote)
+post_delete.connect(record_cancel_vote, sender=Vote)
+delete_post_or_answer.connect(record_delete_question, sender=Question)
+delete_post_or_answer.connect(record_delete_question, sender=Answer)
+mark_offensive.connect(record_mark_offensive, sender=Question)
+mark_offensive.connect(record_mark_offensive, sender=Answer)
+tags_updated.connect(record_update_tags, sender=Question)
+post_save.connect(record_favorite_question, sender=FavoriteQuestion)
+user_updated.connect(record_user_full_updated, sender=User)
+user_logged_in.connect(post_stored_anonymous_content)
diff --git a/forum/skins.py b/forum/skins/__init__.py
index 2f0405d7..be6bd4f3 100644
--- a/forum/skins.py
+++ b/forum/skins/__init__.py
@@ -4,7 +4,6 @@ from django.template.loaders import filesystem
 from django.http import HttpResponse
 import os.path
 import logging
-APP_NAME = os.path.basename(os.path.dirname(__file__))
 
 #module for skinning osqa
 #at this point skin can be changed only in settings file
@@ -36,7 +35,7 @@ def find_media_source(url):
     n = os.path.normpath
     j = os.path.join
     f = os.path.isfile
-    skins = n(j(d(__file__),'skins'))
+    skins = n(j(d(d(__file__)),'skins'))
     try:
         media = os.path.join(skins, settings.OSQA_DEFAULT_SKIN, url)
         assert(f(media))
diff --git a/forum/skins/default/media/js/com.cnprog.post.js b/forum/skins/default/media/js/com.cnprog.post.js
index 5469a374..4325e665 100644
--- a/forum/skins/default/media/js/com.cnprog.post.js
+++ b/forum/skins/default/media/js/com.cnprog.post.js
@@ -153,17 +153,17 @@ var Vote = function(){
     var setVoteImage = function(voteType, undo, object){
         var flag = undo ? "" : "-on";
         var arrow = (voteType == VoteType.questionUpVote || voteType == VoteType.answerUpVote) ? "up" : "down";
-        object.attr("src", scriptUrl + "media/images/vote-arrow-"+ arrow + flag +".png");
+        object.attr("src", mediaUrl("media/images/vote-arrow-"+ arrow + flag +".png"));
         
         // if undo voting, then undo the pair of arrows.
         if(undo){
             if(voteType == VoteType.questionUpVote || voteType == VoteType.questionDownVote){
-                $(getQuestionVoteUpButton()).attr("src", scriptUrl + "media/images/vote-arrow-up.png");
-                $(getQuestionVoteDownButton()).attr("src", scriptUrl + "media/images/vote-arrow-down.png");
+                $(getQuestionVoteUpButton()).attr("src", mediaUrl("media/images/vote-arrow-up.png"));
+                $(getQuestionVoteDownButton()).attr("src", mediaUrl("media/images/vote-arrow-down.png"));
             }
             else{
-                $(getAnswerVoteUpButton(postId)).attr("src", scriptUrl + "media/images/vote-arrow-up.png");
-                $(getAnswerVoteDownButton(postId)).attr("src", scriptUrl + "media/images/vote-arrow-down.png");
+                $(getAnswerVoteUpButton(postId)).attr("src", mediaUrl("media/images/vote-arrow-up.png"));
+                $(getAnswerVoteDownButton(postId)).attr("src", mediaUrl("media/images/vote-arrow-down.png"));
             }
         }
     };
@@ -259,19 +259,19 @@ var Vote = function(){
             showMessage(object, acceptOwnAnswerMessage);
         }
         else if(data.status == "1"){
-            object.attr("src", scriptUrl + "media/images/vote-accepted.png");
+            object.attr("src", mediaUrl("media/images/vote-accepted.png"));
             $("#"+answerContainerIdPrefix+postId).removeClass("accepted-answer");
             $("#"+commentLinkIdPrefix+postId).removeClass("comment-link-accepted");
         }
         else if(data.success == "1"){
             var acceptedButtons = 'div.'+ voteContainerId +' img[id^='+ imgIdPrefixAccept +']';
-            $(acceptedButtons).attr("src", scriptUrl + "media/images/vote-accepted.png");
+            $(acceptedButtons).attr("src", mediaUrl("media/images/vote-accepted.png"));
             var answers = ("div[id^="+answerContainerIdPrefix +"]");
             $(answers).removeClass("accepted-answer");
             var commentLinks = ("div[id^="+answerContainerIdPrefix +"] div[id^="+ commentLinkIdPrefix +"]");
             $(commentLinks).removeClass("comment-link-accepted");
             
-            object.attr("src", scriptUrl + "media/images/vote-accepted-on.png");
+            object.attr("src", mediaUrl("media/images/vote-accepted-on.png"));
             $("#"+answerContainerIdPrefix+postId).addClass("accepted-answer");
             $("#"+commentLinkIdPrefix+postId).addClass("comment-link-accepted");
         }
@@ -285,7 +285,7 @@ var Vote = function(){
             showMessage(object, favoriteAnonymousMessage.replace("{{QuestionID}}", questionId));
         }
         else if(data.status == "1"){
-            object.attr("src", scriptUrl + "media/images/vote-favorite-off.png");
+            object.attr("src", mediaUrl("media/images/vote-favorite-off.png"));
             var fav = getFavoriteNumber();
             fav.removeClass("my-favorite-number");
             if(data.count === 0){
@@ -294,7 +294,7 @@ var Vote = function(){
             fav.text(data.count);
         }
         else if(data.success == "1"){
-            object.attr("src", scriptUrl + "media/images/vote-favorite-on.png");
+            object.attr("src", mediaUrl("media/images/vote-favorite-on.png"));
             var fav = getFavoriteNumber();
             fav.text(data.count);
             fav.addClass("my-favorite-number");
@@ -538,8 +538,8 @@ function createComments(type) {
     var renderDeleteCommentIcon = function(post_id, delete_url){
         if (canPostComments(post_id)){
             var html = '';
-            var img = scriptUrl + "media/images/close-small.png";
-            var imgHover = scriptUrl + "media/images/close-small-hover.png";
+            var img = mediaUrl("media/images/close-small.png");
+            var imgHover = mediaUrl("media/images/close-small-hover.png");
             html += '<img class="delete-icon" onclick="' + objectType + 'Comments.deleteComment($(this), ' + post_id + ', \'' + delete_url + '\')" src="' + img;
             html += '" onmouseover="$(this).attr(\'src\', \'' + imgHover + '\')" onmouseout="$(this).attr(\'src\', \'' + img;
             html += '\')" title="' + $.i18n._('delete this comment') + '" />';
@@ -624,12 +624,12 @@ function createComments(type) {
                         delete_icon.click(function(){CommentsClass.deleteComment($(this),comment_id,delete_url);});
                         delete_icon.unbind('mouseover').bind('mouseover',
                             function(){
-                                $(this).attr('src',scriptUrl + 'media/images/close-small-hover.png');
+                                $(this).attr('src',mediaUrl('media/images/close-small-hover.png'));
                             }
                         );
                         delete_icon.unbind('mouseout').bind('mouseout',
                             function(){
-                                $(this).attr('src',scriptUrl + 'media/images/close-small.png');
+                                $(this).attr('src',mediaUrl('media/images/close-small.png'));
                             }
                         );
                     }
diff --git a/forum/skins/default/media/js/com.cnprog.tag_selector.js b/forum/skins/default/media/js/com.cnprog.tag_selector.js
index 5cfc3561..e3279e65 100644
--- a/forum/skins/default/media/js/com.cnprog.tag_selector.js
+++ b/forum/skins/default/media/js/com.cnprog.tag_selector.js
@@ -45,10 +45,10 @@ function pickedTags(){
 
     var setupTagDeleteEvents = function(obj,tag_store,tagname,reason,send_ajax){
         obj.unbind('mouseover').bind('mouseover', function(){
-            $(this).attr('src', scriptUrl + 'media/images/close-small-hover.png');
+            $(this).attr('src', mediaUrl('media/images/close-small-hover.png'));
         });
         obj.unbind('mouseout').bind('mouseout', function(){
-            $(this).attr('src', scriptUrl + 'media/images/close-small-dark.png');
+            $(this).attr('src', mediaUrl('media/images/close-small-dark.png'));
         });
         obj.click( function(){
             unpickTag(tag_store,tagname,reason,send_ajax);
@@ -88,7 +88,7 @@ function pickedTags(){
                 tag_link.html(tagname);
                 var del_link = $('<img></img>');
                 del_link.addClass('delete-icon');
-                del_link.attr('src', scriptUrl + 'media/images/close-small-dark.png');
+                del_link.attr('src', mediaUrl('/media/images/close-small-dark.png'));
 
                 setupTagDeleteEvents(del_link, to_target, tagname, reason, true);
 
diff --git a/forum/skins/default/media/js/com.cnprog.utils.js b/forum/skins/default/media/js/com.cnprog.utils.js
index 7d8ea1f8..93083288 100644
--- a/forum/skins/default/media/js/com.cnprog.utils.js
+++ b/forum/skins/default/media/js/com.cnprog.utils.js
@@ -1,7 +1,11 @@
-//var $, scriptUrl;
+//var $, scriptUrl, osqaSkin
+var mediaUrl = function(resource){
+    return scriptUrl + 'm/' + osqaSkin + '/' + resource;
+};
+
 var showMessage = function(object, msg) {
     var div = $('<div class="vote-notification"><h3>' + msg + '</h3>(' +
-				$.i18n._('click to close') + ')</div>');
+    $.i18n._('click to close') + ')</div>');
 
     div.click(function(event) {
         $(".vote-notification").fadeOut("fast", function() { $(this).remove(); });
@@ -37,11 +41,11 @@ var notify = function() {
 
 function appendLoader(containerSelector) {
     $(containerSelector).append('<img class="ajax-loader" ' +
-		'src="' + scriptUrl + 'media/images/indicator.gif" title="' +
-		$.i18n._('loading...') +
-		'" alt="' +
-		$.i18n._('loading...') +
-		'" />');
+        'src="mediaUrl("media/images/indicator.gif")" title="' +
+        $.i18n._('loading...') +
+        '" alt="' +
+        $.i18n._('loading...') +
+    '" />');
 }
 
 function removeLoader() {
diff --git a/forum/skins/default/media/js/wmd/wmd.js b/forum/skins/default/media/js/wmd/wmd.js
index 6277de90..9888cda0 100644
--- a/forum/skins/default/media/js/wmd/wmd.js
+++ b/forum/skins/default/media/js/wmd/wmd.js
@@ -52,9 +52,9 @@ Attacklab.wmdBase = function(){
 	var imageDialogText = "<p style='margin-top: 0px'>" + $.i18n._('enter image url') + '</p>';
 	var linkDialogText = "<p style='margin-top: 0px'>" + $.i18n._('enter url') + '</p>';
 	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=\"" + scriptUrl + "media/images/indicator.gif\" style=\"display:none;\"/>";
+        '<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;"/>';
     
 	// 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 9fabe7a1..9033b0c9 100755
--- a/forum/skins/default/templates/base.html
+++ b/forum/skins/default/templates/base.html
@@ -17,30 +17,14 @@
         <link href="{% media  "/media/style/style.css" %}" rel="stylesheet" type="text/css" />
         <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">
+        <script type="text/javascript">
             var i18nLang = '{{settings.LANGUAGE_CODE}}';
             var scriptUrl = '/{{settings.FORUM_SCRIPT_ALIAS}}'
-		</script>
+            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>
+        <script type='text/javascript' src='{% media  "/media/js/jquery.i18n.js" %}'></script>
         <script type='text/javascript' src='{% media  "/media/js/com.cnprog.utils.js" %}'></script>
-        <!--<script type="text/javascript">
-        var uservoiceJsHost = ("https:" == document.location.protocol) ? "https://uservoice.com" : "http://cdn.uservoice.com";
-        document.write(unescape("%3Cscript src='" + uservoiceJsHost + "/javascripts/widgets/tab.js' type='text/javascript'%3E%3C/script%3E"))
-        </script>
-        <script type="text/javascript">
-        UserVoice.Tab.show({ 
-            key: 'cnprog',
-            host: 'cnprog.uservoice.com', 
-            forum: 'general', 
-            alignment: 'left', /* 'left', 'right' */
-            background_color:'#777', 
-            text_color: 'white', /* 'white', 'black' */
-            hover_color: '#06C',
-            lang: 'en' /* 'en', 'de', 'nl', 'es', 'fr' */
-        })
-        </script>-->
-		<!-- todo move this to settings -->
         {% if user_messages %}
         <style type="text/css">
             body { margin-top:2.4em; }
diff --git a/forum/skins/default/templates/base_content.html b/forum/skins/default/templates/base_content.html
index 7f1ddf22..d1cf673b 100644
--- a/forum/skins/default/templates/base_content.html
+++ b/forum/skins/default/templates/base_content.html
@@ -11,38 +11,19 @@
         {% endif %}
         <link rel="shortcut icon" href="{% media  "/media/images/favicon.ico" %}" />
         <link href="{% media  "/media/style/style.css" %}" rel="stylesheet" type="text/css" />
-		 {% spaceless %}
+        {% spaceless %}
         {% block forestyle %}{% endblock %}
         {% endspaceless %}
         <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">
+        <script type="text/javascript">
             var i18nLang = '{{ settings.LANGUAGE_CODE }}';
             var scriptUrl = '/{{settings.FORUM_SCRIPT_ALIAS}}'
-		</script>
+            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>
+        <script type='text/javascript' src='{% media  "/media/js/jquery.i18n.js" %}'></script>
         <script type='text/javascript' src='{% media  "/media/js/com.cnprog.utils.js" %}'></script>
-
-       <!-- <script type="text/javascript">
-        var uservoiceJsHost = ("https:" == document.location.protocol) ? "https://uservoice.com" : "http://cdn.uservoice.com";
-        document.write(unescape("%3Cscript src='" + uservoiceJsHost + "/javascripts/widgets/tab.js' type='text/javascript'%3E%3C/script%3E"))
-        </script>
-        <script type="text/javascript">
-        UserVoice.Tab.show({ 
-			//EDIT!!!
-            key: 'uservoicekey',
-            host: 'where.uservoice.com', 
-            forum: 'general', 
-            alignment: 'left', /* 'left', 'right' */
-            background_color:'#777', 
-            text_color: 'white', /* 'white', 'black' */
-            hover_color: '#06C',
-            lang: 'en' /* 'en', 'de', 'nl', 'es', 'fr' */
-        })
-        </script>-->
-		<!-- todo move this to settings-->
-
         {% if user_messages %}
         <style type="text/css">
             body { margin-top:2.4em; }
diff --git a/forum/skins/default/templates/question.html b/forum/skins/default/templates/question.html
index 048c2d64..34f8fd1d 100644
--- a/forum/skins/default/templates/question.html
+++ b/forum/skins/default/templates/question.html
@@ -70,55 +70,53 @@
                             {% if question_vote %}

                             <img id="question-img-upvote-{{ question.id }}" class="question-img-upvote" 

                                 {% if question_vote.is_upvote %}

-								    src="{% media  "/media/images/vote-arrow-up-on.png" %}" 

+                                    src="{% media  "/media/images/vote-arrow-up-on.png" %}" 

                                 {% else %}

-								    src="{% media  "/media/images/vote-arrow-up.png" %}" 

+                                    src="{% media  "/media/images/vote-arrow-up.png" %}" 

                                 {% endif %}

                                 alt="{% trans "i like this post (click again to cancel)" %}"

-								title="{% trans "i like this post (click again to cancel)" %}" />

+                                title="{% trans "i like this post (click again to cancel)" %}" />

                             <div id="question-vote-number-{{ question.id }}" class="vote-number" 

-								title="{% trans "current number of votes" %}">

+                                title="{% trans "current number of votes" %}">

                                 {{ question.score }}

                             </div>

                             <img id="question-img-downvote-{{ question.id }}" class="question-img-downvote" 

                                 {% if question_vote.is_downvote %}

-								    src="{% media  "/media/images/vote-arrow-down-on.png" %}" 

+                                    src="{% media  "/media/images/vote-arrow-down-on.png" %}" 

                                 {% else %}

-								    src="{% media  "/media/images/vote-arrow-down.png" %}" 

+                                    src="{% media  "/media/images/vote-arrow-down.png" %}" 

                                 {% endif %}

                                 alt="{% trans "i dont like this post (click again to cancel)" %}"

-								title="{% trans "i dont like this post (click again to cancel)" %}" />

+                                title="{% trans "i dont like this post (click again to cancel)" %}" />

                            

                             {% else %}

                             <img id="question-img-upvote-{{ question.id }}" class="question-img-upvote" 

                                 alt="{% trans "i like this post (click again to cancel)" %}"

-								src="{% media  "/media/images/vote-arrow-up.png" %}" 

-								title="{% trans "i like this post (click again to cancel)" %}" />

+                                src="{% media  "/media/images/vote-arrow-up.png" %}" 

+                                title="{% trans "i like this post (click again to cancel)" %}" />

                             <div id="question-vote-number-{{ question.id }}" class="vote-number" 

-								title="{% trans "current number of votes" %}">

+                                title="{% trans "current number of votes" %}">

                                 {{ question.score }}

                             </div>

                             <img id="question-img-downvote-{{ question.id }}" class="question-img-downvote" 

-								src="{% media  "/media/images/vote-arrow-down.png" %}"

+                                src="{% media  "/media/images/vote-arrow-down.png" %}"

                                 alt="{% trans "i dont like this post (click again to cancel)" %}"

                                 title="{% trans "i dont like this post (click again to cancel)" %}" />

-          

                             {% endif %}

                             {% if favorited %}

                             <img class="question-img-favorite" src="{% media  "/media/images/vote-favorite-on.png" %}"

-								alt="{% trans "mark this question as favorite (click again to cancel)" %}"

-								title="{% trans "mark this question as favorite (click again to cancel)" %}" />

+                                alt="{% trans "mark this question as favorite (click again to cancel)" %}"

+                                title="{% trans "mark this question as favorite (click again to cancel)" %}" />

                             <div id="favorite-number" class="favorite-number my-favorite-number">

                                 {{ question.favourite_count }}

                             </div>

                             {% else %}

                             <img class="question-img-favorite" src="{% media  "/media/images/vote-favorite-off.png" %}"

-								alt="{% trans "remove favorite mark from this question (click again to restore mark)" %}"

-								title="{% trans "remove favorite mark from this question (click again to restore mark)" %}" />

+                                alt="{% trans "remove favorite mark from this question (click again to restore mark)" %}"

+                                title="{% trans "remove favorite mark from this question (click again to restore mark)" %}" />

                             <div id="favorite-number" class="favorite-number">

                                {% ifnotequal question.favourite_count 0 %}{{ question.favourite_count }}{% endifnotequal %}

                             </div>

-                        

                             {% endif %}

                             

                         </div>

@@ -217,8 +215,8 @@
             {% if question.closed %}

             <div class="question-status" style="margin-bottom:15px">

             <h3>{% blocktrans with question.get_close_reason_display as close_reason %}The question has been closed for the following reason "{{ close_reason }}" by{% endblocktrans %} 

-			<a href="{{ question.closed_by.get_profile_url }}">{{ question.closed_by.username }}</a> 

-			{% blocktrans with question.closed_at as closed_at %}close date {{closed_at}}{% endblocktrans %}</h3>

+            <a href="{{ question.closed_by.get_profile_url }}">{{ question.closed_by.username }}</a> 

+            {% blocktrans with question.closed_at as closed_at %}close date {{closed_at}}{% endblocktrans %}</h3>

             </div>

             {% endif %}

             {% if answers %}

@@ -258,21 +256,21 @@
                                             {{ answer.score }}

                                         </div>

                                         <img id="answer-img-downvote-{{ answer.id }}" class="answer-img-downvote" 

-											src="{% blockmedia %}/media/images/vote-arrow-down{% get_user_vote_image user_answer_votes answer.id -1 %}.png{% endblockmedia %}" 

-											alt="{% trans "i dont like this answer (click again to cancel)" %}"

-											title="{% trans "i dont like this answer (click again to cancel)" %}" />

+                                            src="{% blockmedia %}/media/images/vote-arrow-down{% get_user_vote_image user_answer_votes answer.id -1 %}.png{% endblockmedia %}" 

+                                            alt="{% trans "i dont like this answer (click again to cancel)" %}"

+                                            title="{% trans "i dont like this answer (click again to cancel)" %}" />

                                      

                                         {% ifequal request.user question.author  %}

                                         <img id="answer-img-accept-{{ answer.id }}" class="answer-img-accept" 

-											src="{% blockmedia %}/media/images/vote-accepted{% if answer.accepted %}-on{% endif %}.png{% endblockmedia %}" 

-											alt="{% trans "mark this answer as favorite (click again to undo)" %}"

-											title="{% trans "mark this answer as favorite (click again to undo)" %}" />

+                                            src="{% blockmedia %}/media/images/vote-accepted{% if answer.accepted %}-on{% endif %}.png{% endblockmedia %}" 

+                                            alt="{% trans "mark this answer as favorite (click again to undo)" %}"

+                                            title="{% trans "mark this answer as favorite (click again to undo)" %}" />

                                         {% else %}

                                             {% if answer.accepted %}

                                             <img id="answer-img-accept-{{ answer.id }}" class="answer-img-accept" 

-												src="{% blockmedia %}/media/images/vote-accepted{% if answer.accepted %}-on{% endif %}.png{% endblockmedia %}" 

-												alt="{% trans "the author of the question has selected this answer as correct" %}"

-												title="{% trans "the author of the question has selected this answer as correct" %}" />

+                                                src="{% blockmedia %}/media/images/vote-accepted{% if answer.accepted %}-on{% endif %}.png{% endblockmedia %}" 

+                                                alt="{% trans "the author of the question has selected this answer as correct" %}"

+                                                title="{% trans "the author of the question has selected this answer as correct" %}" />

                                             {% endif %}

                                         {% endifequal %}

                                     </div>

diff --git a/forum/templatetags/extra_tags.py b/forum/templatetags/extra_tags.py
index 3084c8c2..26c52b8d 100644
--- a/forum/templatetags/extra_tags.py
+++ b/forum/templatetags/extra_tags.py
@@ -330,7 +330,7 @@ class BlockMediaUrlNode(template.Node):
     def __init__(self,nodelist):
         self.items = nodelist 
     def render(self,context):
-        prefix = '///' + settings.FORUM_SCRIPT_ALIAS + '/m/'
+        prefix = '///' + settings.FORUM_SCRIPT_ALIAS + 'm/'
         url = ''
         if self.items:
             url += '/'     
@@ -338,7 +338,7 @@ class BlockMediaUrlNode(template.Node):
             url += item.render(context)
 
         url = skins.find_media_source(url)
-        url += prefix + url
+        url = prefix + url
         out = posixpath.normpath(url) + '?v=%d' % settings.RESOURCE_REVISION
         return out.replace(' ','')
 
diff --git a/forum/user.py b/forum/user.py
deleted file mode 100644
index 40bf6a89..00000000
--- a/forum/user.py
+++ /dev/null
@@ -1,74 +0,0 @@
-from django.utils.translation import ugettext as _
-class UserView:
-    def __init__(self, id, tab_title, tab_description, page_title, view_name, template_file, data_size=0):
-        self.id = id
-        self.tab_title = tab_title
-        self.tab_description = tab_description
-        self.page_title = page_title
-        self.view_name = view_name
-        self.template_file = template_file
-        self.data_size = data_size
-        
-        
-USER_TEMPLATE_VIEWS = (
-    UserView(
-        id = 'stats',
-        tab_title = _('overview'),
-        tab_description = _('user profile'),
-        page_title = _('user profile overview'),
-        view_name = 'user_stats',
-        template_file = 'user_stats.html'
-    ),
-    UserView(
-        id = 'recent',
-        tab_title = _('recent activity'),
-        tab_description = _('recent user activity'),
-        page_title = _('profile - recent activity'),
-        view_name = 'user_recent',
-        template_file = 'user_recent.html',
-        data_size = 50
-    ),
-    UserView(
-        id = 'responses',
-        tab_title = _('responses'),
-        tab_description = _('comments and answers to others questions'),
-        page_title = _('profile - responses'),
-        view_name = 'user_responses',
-        template_file = 'user_responses.html',
-        data_size = 50
-    ),
-    UserView(
-        id = 'reputation',
-        tab_title = _('reputation'),
-        tab_description = _('user reputation in the community'),
-        page_title = _('profile - user reputation'),
-        view_name = 'user_reputation',
-        template_file = 'user_reputation.html'
-    ),
-    UserView(
-        id = 'favorites',
-        tab_title = _('favorite questions'),
-        tab_description = _('users favorite questions'),
-        page_title = _('profile - favorite questions'),
-        view_name = 'user_favorites',
-        template_file = 'user_favorites.html',
-        data_size = 50
-    ),
-    UserView(
-        id = 'votes',
-        tab_title = _('casted votes'),
-        tab_description = _('user vote record'),
-        page_title = _('profile - votes'),
-        view_name = 'user_votes',
-        template_file = 'user_votes.html',
-        data_size = 50
-    ),
-    UserView(
-        id = 'email_subscriptions',
-        tab_title = _('email subscriptions'),
-        tab_description = _('email subscription settings'),
-        page_title = _('profile - email subscriptions'),
-        view_name = 'user_email_subscriptions',
-        template_file = 'user_email_subscriptions.html'
-    )
-)
diff --git a/forum/views/__init__.py b/forum/views/__init__.py
new file mode 100644
index 00000000..0bd91fe6
--- /dev/null
+++ b/forum/views/__init__.py
@@ -0,0 +1,4 @@
+from forum.views.content import *
+from forum.views.users import *
+from forum.views.meta import *
+from forum.views.books import *
diff --git a/forum/views/books.py b/forum/views/books.py
new file mode 100644
index 00000000..bb1bfe85
--- /dev/null
+++ b/forum/views/books.py
@@ -0,0 +1,139 @@
+from django.contrib.auth.decorators import login_required
+from django.core.urlresolvers import reverse
+from django.shortcuts import render_to_response
+from forum.models import BookAuthorInfo, BookAuthorRss, Book
+from forum.models import Question, QuestionRevision
+from django.http import HttpResponseRedirect
+
+def books(request):
+    """this view seems to redirect to a default book
+    maybe it should instead show some popular titles?
+    """
+    return HttpResponseRedirect(reverse('books') + 'mysql-zhaoyang')
+    
+def book(request, short_name, unanswered=False):
+    """
+    1. questions list
+    2. book info
+    3. author info and blog rss items
+    """
+    """
+    List of Questions, Tagged questions, and Unanswered questions.
+    """
+    books = Book.objects.extra(where=['short_name = %s'], params=[short_name])
+    match_count = len(books)
+    if match_count == 0:
+        raise Http404
+    else:
+        # the book info
+        book = books[0]
+        # get author info
+        author_info = BookAuthorInfo.objects.get(book=book)
+        # get author rss info
+        author_rss = BookAuthorRss.objects.filter(book=book)
+
+        # get pagesize from session, if failed then get default value
+        user_page_size = request.session.get("pagesize", QUESTIONS_PAGE_SIZE)
+        # set pagesize equal to logon user specified value in database
+        if request.user.is_authenticated() and request.user.questions_per_page > 0:
+            user_page_size = request.user.questions_per_page
+            
+        try:
+            page = int(request.GET.get('page', '1'))
+        except ValueError:
+            page = 1
+
+        view_id = request.GET.get('sort', None)
+        view_dic = {"latest":"-added_at", "active":"-last_activity_at", "hottest":"-answer_count", "mostvoted":"-score" }
+        try:
+            orderby = view_dic[view_id]
+        except KeyError:
+            view_id = "latest"
+            orderby = "-added_at"
+            
+        # check if request is from tagged questions
+        if unanswered:
+            # check if request is from unanswered questions
+            # Article.objects.filter(publications__id__exact=1)
+            objects = Question.objects.filter(book__id__exact=book.id, deleted=False, answer_count=0).order_by(orderby)
+        else:
+            objects = Question.objects.filter(book__id__exact=book.id, deleted=False).order_by(orderby)
+
+        # RISK - inner join queries
+        objects = objects.select_related();
+        objects_list = Paginator(objects, user_page_size)
+        questions = objects_list.page(page)
+
+        return render_to_response('book.html', {
+            "book" : book,
+            "author_info" : author_info,
+            "author_rss" : author_rss,
+            "questions" : questions,
+            "context" : {
+                'is_paginated' : True,
+                'pages': objects_list.num_pages,
+                'page': page,
+                'has_previous': questions.has_previous(),
+                'has_next': questions.has_next(),
+                'previous': questions.previous_page_number(),
+                'next': questions.next_page_number(),
+                'base_url' : request.path + '?sort=%s&' % view_id,
+                'pagesize' : user_page_size
+            }
+        }, context_instance=RequestContext(request))
+
+@login_required
+def ask_book(request, short_name):
+    if request.method == "POST":
+        form = AskForm(request.POST)
+        if form.is_valid():
+            added_at = datetime.datetime.now()
+            html = sanitize_html(markdowner.convert(form.cleaned_data['text']))
+            question = Question(
+                title            = strip_tags(form.cleaned_data['title']),
+                author           = request.user,
+                added_at         = added_at,
+                last_activity_at = added_at,
+                last_activity_by = request.user,
+                wiki             = form.cleaned_data['wiki'],
+                tagnames         = form.cleaned_data['tags'].strip(),
+                html             = html,
+                summary          = strip_tags(html)[:120]
+            )
+            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     = request.user,
+                revised_at = added_at,
+                tagnames   = question.tagnames,
+                summary    = CONST['default_version'],
+                text       = form.cleaned_data['text']
+            )
+            
+            books = Book.objects.extra(where=['short_name = %s'], params=[short_name])
+            match_count = len(books)
+            if match_count == 1:
+                # the book info
+                book = books[0]
+                book.questions.add(question)
+
+            return HttpResponseRedirect(question.get_absolute_url())
+    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))
+
diff --git a/forum/views/content.py b/forum/views/content.py
new file mode 100644
index 00000000..2833edfc
--- /dev/null
+++ b/forum/views/content.py
@@ -0,0 +1,1393 @@
+# encoding:utf-8
+import os.path
+import time, datetime, calendar, random
+import logging
+from urllib import quote, 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.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.utils.translation import ugettext as _
+from django.utils.datastructures import SortedDict
+from django.template.defaultfilters import slugify
+from django.core.exceptions import PermissionDenied
+
+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
+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
+
+# 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 display main content
+def _get_tags_cache_json():#service routine
+    """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
+
+def _get_and_remember_questions_sort_method(request, view_dic, default):#service routine
+    """manages persistence of post sort order
+    it is assumed that when user wants newest question - 
+    then he/she wants newest answers as well, etc.
+    how far should this assumption actually go - may be a good question
+    """
+    if default not in view_dic:
+        raise Exception('default value must be in view_dic')
+
+    q_sort_method = request.REQUEST.get('sort', None)
+    if q_sort_method == None:
+        q_sort_method = request.session.get('questions_sort_method', default)
+
+    if q_sort_method not in view_dic:
+        q_sort_method = default
+    request.session['questions_sort_method'] = q_sort_method
+    return q_sort_method, view_dic[q_sort_method]
+
+#refactor? - we have these
+#views that generate a listing of questions in one way or another:
+#index, unanswered, questions, search, tag
+#should we dry them up?
+#related topics - information drill-down, search refinement
+
+def index(request):#generates front page - shows listing of questions sorted in various ways
+    """index view mapped to the root url of the Q&A site
+    """
+    view_dic = {
+             "latest":"-last_activity_at",
+             "hottest":"-answer_count",
+             "mostvoted":"-score",
+             }
+    view_id, orderby = _get_and_remember_questions_sort_method(request, view_dic, 'latest')
+
+    page_size = request.session.get('pagesize', QUESTIONS_PAGE_SIZE)
+    questions = Question.objects.exclude(deleted=True).order_by(orderby)[:page_size] 
+    # RISK - inner join queries
+    questions = questions.select_related()
+    tags = Tag.objects.get_valid_tags(INDEX_TAGS_SIZE)
+
+    awards = Award.objects.get_recent_awards()
+
+    (interesting_tag_names, ignored_tag_names) = (None, None)
+    if request.user.is_authenticated():
+        pt = MarkedTag.objects.filter(user=request.user)
+        interesting_tag_names = pt.filter(reason='good').values_list('tag__name', flat=True)
+        ignored_tag_names = pt.filter(reason='bad').values_list('tag__name', flat=True)
+
+    tags_autocomplete = _get_tags_cache_json()
+
+    return render_to_response('index.html', {
+        'interesting_tag_names': interesting_tag_names,
+        'tags_autocomplete': tags_autocomplete,
+        'ignored_tag_names': ignored_tag_names,
+        "questions" : questions,
+        "tab_id" : view_id,
+        "tags" : tags,
+        "awards" : awards[:INDEX_AWARD_SIZE],
+        }, context_instance=RequestContext(request))
+
+def unanswered(request):#generates listing of unanswered questions
+    return questions(request, unanswered=True)
+
+def questions(request, tagname=None, unanswered=False):#a view generating listing of questions, used by 'unanswered' too
+    """
+    List of Questions, Tagged questions, and Unanswered questions.
+    """
+    # template file
+    # "questions.html" or maybe index.html in the future
+    template_file = "questions.html"
+    # Set flag to False by default. If it is equal to True, then need to be saved.
+    pagesize_changed = False
+    # get pagesize from session, if failed then get default value
+    pagesize = request.session.get("pagesize",10)
+    try:
+        page = int(request.GET.get('page', '1'))
+    except ValueError:
+        page = 1
+
+    view_dic = {"latest":"-added_at", "active":"-last_activity_at", "hottest":"-answer_count", "mostvoted":"-score" }
+    view_id, orderby = _get_and_remember_questions_sort_method(request,view_dic,'latest')
+
+    # check if request is from tagged questions
+    qs = Question.objects.exclude(deleted=True)
+
+    if tagname is not None:
+        qs = qs.filter(tags__name = unquote(tagname))
+
+    if unanswered:
+        qs = qs.exclude(answer_accepted=True)
+
+    author_name = None
+    #user contributed questions & answers
+    if 'user' in request.GET:
+        try:
+            author_name = request.GET['user']
+            u = User.objects.get(username=author_name)
+            qs = qs.filter(Q(author=u) | Q(answers__author=u))
+        except User.DoesNotExist:
+            author_name = None
+
+    if request.user.is_authenticated():
+        uid_str = str(request.user.id)
+        qs = qs.extra(
+                        select = SortedDict([
+                            (
+                                'interesting_score', 
+                                'SELECT COUNT(1) FROM forum_markedtag, question_tags '
+                                  + 'WHERE forum_markedtag.user_id = %s '
+                                  + 'AND forum_markedtag.tag_id = question_tags.tag_id '
+                                  + 'AND forum_markedtag.reason = \'good\' '
+                                  + 'AND question_tags.question_id = question.id'
+                            ),
+                                ]),
+                        select_params = (uid_str,),
+                     )
+        if request.user.hide_ignored_questions:
+            ignored_tags = Tag.objects.filter(user_selections__reason='bad',
+                                            user_selections__user = request.user)
+            qs = qs.exclude(tags__in=ignored_tags)
+        else:
+            qs = qs.extra(
+                        select = SortedDict([
+                            (
+                                'ignored_score', 
+                                'SELECT COUNT(1) FROM forum_markedtag, question_tags '
+                                  + 'WHERE forum_markedtag.user_id = %s '
+                                  + 'AND forum_markedtag.tag_id = question_tags.tag_id '
+                                  + 'AND forum_markedtag.reason = \'bad\' '
+                                  + 'AND question_tags.question_id = question.id'
+                            )
+                                ]),
+                        select_params = (uid_str, )
+                     )
+
+    qs = qs.select_related(depth=1).order_by(orderby)
+
+    objects_list = Paginator(qs, pagesize)
+    questions = objects_list.page(page)
+
+    # Get related tags from this page objects
+    if questions.object_list.count() > 0:
+        related_tags = Tag.objects.get_tags_by_questions(questions.object_list)
+    else:
+        related_tags = None
+    tags_autocomplete = _get_tags_cache_json()
+
+    # get the list of interesting and ignored tags
+    (interesting_tag_names, ignored_tag_names) = (None, None)
+    if request.user.is_authenticated():
+        pt = MarkedTag.objects.filter(user=request.user)
+        interesting_tag_names = pt.filter(reason='good').values_list('tag__name', flat=True)
+        ignored_tag_names = pt.filter(reason='bad').values_list('tag__name', flat=True)
+
+    return render_to_response(template_file, {
+        "questions" : questions,
+        "author_name" : author_name,
+        "tab_id" : view_id,
+        "questions_count" : objects_list.count,
+        "tags" : related_tags,
+        "tags_autocomplete" : tags_autocomplete, 
+        "searchtag" : tagname,
+        "is_unanswered" : unanswered,
+        "interesting_tag_names": interesting_tag_names,
+        'ignored_tag_names': ignored_tag_names, 
+        "context" : {
+            'is_paginated' : True,
+            'pages': objects_list.num_pages,
+            'page': page,
+            'has_previous': questions.has_previous(),
+            'has_next': questions.has_next(),
+            'previous': questions.previous_page_number(),
+            'next': questions.next_page_number(),
+            'base_url' : request.path + '?sort=%s&' % view_id,
+            'pagesize' : pagesize
+        }}, context_instance=RequestContext(request))
+
+def search(request): #generates listing of questions matching a search query - including tags and just words
+    """generates listing of questions matching a search query
+    supports full text search in mysql db using sphinx and internally in postgresql
+    falls back on simple partial string matching approach if
+    full text search function is not available
+    """
+    if request.method == "GET":
+        keywords = request.GET.get("q")
+        search_type = request.GET.get("t")
+        try:
+            page = int(request.GET.get('page', '1'))
+        except ValueError:
+            page = 1
+        if keywords is None:
+            return HttpResponseRedirect(reverse(index))
+        if search_type == 'tag':
+            return HttpResponseRedirect(reverse('tags') + '?q=%s&page=%s' % (keywords.strip(), page))
+        elif search_type == "user":
+            return HttpResponseRedirect(reverse('users') + '?q=%s&page=%s' % (keywords.strip(), page))
+        elif search_type == "question":
+            
+            template_file = "questions.html"
+            # Set flag to False by default. If it is equal to True, then need to be saved.
+            pagesize_changed = False
+            # get pagesize from session, if failed then get default value
+            user_page_size = request.session.get("pagesize", QUESTIONS_PAGE_SIZE)
+            # set pagesize equal to logon user specified value in database
+            if request.user.is_authenticated() and request.user.questions_per_page > 0:
+                user_page_size = request.user.questions_per_page
+
+            try:
+                page = int(request.GET.get('page', '1'))
+                # get new pagesize from UI selection
+                pagesize = int(request.GET.get('pagesize', user_page_size))
+                if pagesize <> user_page_size:
+                    pagesize_changed = True
+
+            except ValueError:
+                page = 1
+                pagesize  = user_page_size
+
+            # save this pagesize to user database
+            if pagesize_changed:
+                request.session["pagesize"] = pagesize
+                if request.user.is_authenticated():
+                    user = request.user
+                    user.questions_per_page = pagesize
+                    user.save()
+
+            view_id = request.GET.get('sort', None)
+            view_dic = {"latest":"-added_at", "active":"-last_activity_at", "hottest":"-answer_count", "mostvoted":"-score" }
+            try:
+                orderby = view_dic[view_id]
+            except KeyError:
+                view_id = "latest"
+                orderby = "-added_at"
+
+            if settings.USE_PG_FTS:
+                objects = Question.objects.filter(deleted=False).extra(
+                    select={
+                        'ranking': "ts_rank_cd(tsv, plainto_tsquery(%s), 32)",
+                    },
+                    where=["tsv @@ plainto_tsquery(%s)"],
+                    params=[keywords],
+                    select_params=[keywords]
+                ).order_by('-ranking')
+
+            elif settings.USE_SPHINX_SEARCH == True:
+                #search index is now free of delete questions and answers
+                #so there is not "antideleted" filtering here
+                objects = Question.search.query(keywords)
+                #no related selection either because we're relying on full text search here
+            else:
+                objects = Question.objects.filter(deleted=False).extra(where=['title like %s'], params=['%' + keywords + '%']).order_by(orderby)
+                # RISK - inner join queries
+                objects = objects.select_related();
+
+            objects_list = Paginator(objects, pagesize)
+            questions = objects_list.page(page)
+
+            # Get related tags from this page objects
+            related_tags = []
+            for question in questions.object_list:
+                tags = list(question.tags.all())
+                for tag in tags:
+                    if tag not in related_tags:
+                        related_tags.append(tag)
+
+            #if is_search is true in the context, prepend this string to soting tabs urls
+            search_uri = "?q=%s&page=%d&t=question" % ("+".join(keywords.split()),  page)
+
+            return render_to_response(template_file, {
+                "questions" : questions,
+                "tab_id" : view_id,
+                "questions_count" : objects_list.count,
+                "tags" : related_tags,
+                "searchtag" : None,
+                "searchtitle" : keywords,
+                "keywords" : keywords,
+                "is_unanswered" : False,
+                "is_search": True, 
+                "search_uri":  search_uri, 
+                "context" : {
+                    'is_paginated' : True,
+                    'pages': objects_list.num_pages,
+                    'page': page,
+                    'has_previous': questions.has_previous(),
+                    'has_next': questions.has_next(),
+                    'previous': questions.previous_page_number(),
+                    'next': questions.next_page_number(),
+                    'base_url' : request.path + '?t=question&q=%s&sort=%s&' % (keywords, view_id),
+                    'pagesize' : pagesize
+                }}, context_instance=RequestContext(request))
+ 
+    else:
+        raise Http404
+
+def tag(request, tag):#generates listing of questions tagged with a single tag
+    return questions(request, tagname=tag)
+
+def tags(request):#view showing a listing of available tags - plain list
+    stag = ""
+    is_paginated = True
+    sortby = request.GET.get('sort', 'used')
+    try:
+        page = int(request.GET.get('page', '1'))
+    except ValueError:
+        page = 1
+
+    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)
+
+    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 question(request, id):#refactor - long subroutine. display question body, answers and comments
+    """view that displays body of the question and 
+    all answers to it
+    """
+    try:
+        page = int(request.GET.get('page', '1'))
+    except ValueError:
+        page = 1
+
+    view_id = request.GET.get('sort', None)
+    view_dic = {"latest":"-added_at", "oldest":"added_at", "votes":"-score" }
+    try:
+        orderby = view_dic[view_id]
+    except KeyError:
+        qsm = request.session.get('questions_sort_method',None)
+        if qsm in ('mostvoted','latest'):
+            logging.debug('loaded from session ' + qsm)
+            if qsm == 'mostvoted':
+                view_id = 'votes'
+                orderby = '-score'
+            else:
+                view_id = 'latest'
+                orderby = '-added_at'
+        else:
+            view_id = "votes"
+            orderby = "-score"
+
+    logging.debug('view_id=' + str(view_id))
+
+    question = get_object_or_404(Question, id=id)
+    try:
+        pattern = r'/%s%s%d/([\w-]+)' % (settings.FORUM_SCRIPT_ALIAS,_('question/'), question.id)
+        path_re = re.compile(pattern)
+        logging.debug(pattern)
+        logging.debug(request.path)
+        m = path_re.match(request.path)
+        if m:
+            slug = m.group(1)
+            logging.debug('have slug %s' % slug)
+            assert(slug == slugify(question.title))
+        else:
+            logging.debug('no match!')
+    except:
+        return HttpResponseRedirect(question.get_absolute_url())
+
+    if question.deleted and not auth.can_view_deleted_post(request.user, question):
+        raise Http404
+    answer_form = AnswerForm(question,request.user)
+    answers = Answer.objects.get_answers_from_question(question, request.user)
+    answers = answers.select_related(depth=1)
+
+    favorited = question.has_favorite_by_user(request.user)
+    if request.user.is_authenticated():
+        question_vote = question.votes.select_related().filter(user=request.user)
+    else:
+        question_vote = None #is this correct?
+    if question_vote is not None and question_vote.count() > 0:
+        question_vote = question_vote[0]
+
+    user_answer_votes = {}
+    for answer in answers:
+        vote = answer.get_user_vote(request.user)
+        if vote is not None and not user_answer_votes.has_key(answer.id):
+            vote_value = -1
+            if vote.is_upvote():
+                vote_value = 1
+            user_answer_votes[answer.id] = vote_value
+
+    if answers is not None:
+        answers = answers.order_by("-accepted", orderby)
+
+    filtered_answers = []
+    for answer in answers:
+        if answer.deleted == True:
+            if answer.author_id == request.user.id:
+                filtered_answers.append(answer)
+        else:
+            filtered_answers.append(answer)
+
+    objects_list = Paginator(filtered_answers, ANSWERS_PAGE_SIZE)
+    page_objects = objects_list.page(page)
+
+    #todo: merge view counts per user and per session
+    #1) view count per session
+    update_view_count = False
+    if 'question_view_times' not in request.session:
+        request.session['question_view_times'] = {}
+
+    last_seen = request.session['question_view_times'].get(question.id,None)
+    updated_when, updated_who = question.get_last_update_info()
+
+    if updated_who != request.user:
+        if last_seen:
+            if last_seen < updated_when:
+                update_view_count = True 
+        else:
+            update_view_count = True
+
+    request.session['question_view_times'][question.id] = datetime.datetime.now()
+
+    if update_view_count:
+        question.view_count += 1
+        question.save()
+
+    #2) question view count per user
+    if request.user.is_authenticated():
+        try:
+            question_view = QuestionView.objects.get(who=request.user, question=question)
+        except QuestionView.DoesNotExist:
+            question_view = QuestionView(who=request.user, question=question)
+        question_view.when = datetime.datetime.now()
+        question_view.save()
+
+    return render_to_response('question.html', {
+        "question" : question,
+        "question_vote" : question_vote,
+        "question_comment_count":question.comments.count(),
+        "answer" : answer_form,
+        "answers" : page_objects.object_list,
+        "user_answer_votes": user_answer_votes,
+        "tags" : question.tags.all(),
+        "tab_id" : view_id,
+        "favorited" : favorited,
+        "similar_questions" : Question.objects.get_similar_questions(question),
+        "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()
+    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(' ')]),
+        }
+        if i > 0:
+            revisions[i].diff = htmldiff(revisions[i-1].html, revision.html)
+        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)
+        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))
+#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 vote(request, id):#refactor - pretty incomprehensible view used by various ajax calls
+#issues: this subroutine is too long, contains many magic numbers and other issues
+#it's called "vote" but many actions processed here have nothing to do with voting
+    """
+    vote_type:
+        acceptAnswer : 0,
+        questionUpVote : 1,
+        questionDownVote : 2,
+        favorite : 4,
+        answerUpVote: 5,
+        answerDownVote:6,
+        offensiveQuestion : 7,
+        offensiveAnswer:8,
+        removeQuestion: 9,
+        removeAnswer:10
+        questionSubscribeUpdates:11
+
+    accept answer code:
+        response_data['allowed'] = -1, Accept his own answer   0, no allowed - Anonymous    1, Allowed - by default
+        response_data['success'] =  0, failed                                               1, Success - by default
+        response_data['status']  =  0, By default                                           1, Answer has been accepted already(Cancel)
+
+    vote code:
+        allowed = -3, Don't have enough votes left
+                  -2, Don't have enough reputation score
+                  -1, Vote his own post
+                   0, no allowed - Anonymous
+                   1, Allowed - by default
+        status  =  0, By default
+                   1, Cancel
+                   2, Vote is too old to be canceled
+
+    offensive code:
+        allowed = -3, Don't have enough flags left
+                  -2, Don't have enough reputation score to do this
+                   0, not allowed
+                   1, allowed
+        status  =  0, by default
+                   1, can't do it again
+    """
+    response_data = {
+        "allowed": 1,
+        "success": 1,
+        "status" : 0,
+        "count"  : 0,
+        "message" : ''
+    }
+
+    def __can_vote(vote_score, user):#refactor - belongs to auth.py
+        if vote_score == 1:#refactor magic number
+            return auth.can_vote_up(request.user)
+        else:
+            return auth.can_vote_down(request.user)
+
+    try:
+        if not request.user.is_authenticated():
+            response_data['allowed'] = 0
+            response_data['success'] = 0
+
+        elif request.is_ajax():
+            question = get_object_or_404(Question, id=id)
+            vote_type = request.POST.get('type')
+
+            #accept answer
+            if vote_type == '0':
+                answer_id = request.POST.get('postId')
+                answer = get_object_or_404(Answer, id=answer_id)
+                # make sure question author is current user
+                if question.author == request.user:
+                    # answer user who is also question author is not allow to accept answer
+                    if answer.author == question.author:
+                        response_data['success'] = 0
+                        response_data['allowed'] = -1
+                    # check if answer has been accepted already
+                    elif answer.accepted:
+                        onAnswerAcceptCanceled(answer, request.user)
+                        response_data['status'] = 1
+                    else:
+                        # set other answers in this question not accepted first
+                        for answer_of_question in Answer.objects.get_answers_from_question(question, request.user):
+                            if answer_of_question != answer and answer_of_question.accepted:
+                                onAnswerAcceptCanceled(answer_of_question, request.user)
+
+                        #make sure retrieve data again after above author changes, they may have related data
+                        answer = get_object_or_404(Answer, id=answer_id)
+                        onAnswerAccept(answer, request.user)
+                else:
+                    response_data['allowed'] = 0
+                    response_data['success'] = 0
+            # favorite
+            elif vote_type == '4':
+                has_favorited = False
+                fav_questions = FavoriteQuestion.objects.filter(question=question)
+                # if the same question has been favorited before, then delete it
+                if fav_questions is not None:
+                    for item in fav_questions:
+                        if item.user == request.user:
+                            item.delete()
+                            response_data['status'] = 1
+                            response_data['count']  = len(fav_questions) - 1
+                            if response_data['count'] < 0:
+                                response_data['count'] = 0
+                            has_favorited = True
+                # if above deletion has not been executed, just insert a new favorite question
+                if not has_favorited:
+                    new_item = FavoriteQuestion(question=question, user=request.user)
+                    new_item.save()
+                    response_data['count']  = FavoriteQuestion.objects.filter(question=question).count()
+                Question.objects.update_favorite_count(question)
+
+            elif vote_type in ['1', '2', '5', '6']:
+                post_id = id
+                post = question
+                vote_score = 1
+                if vote_type in ['5', '6']:
+                    answer_id = request.POST.get('postId')
+                    answer = get_object_or_404(Answer, id=answer_id)
+                    post_id = answer_id
+                    post = answer
+                if vote_type in ['2', '6']:
+                    vote_score = -1
+
+                if post.author == request.user:
+                    response_data['allowed'] = -1
+                elif not __can_vote(vote_score, request.user):
+                    response_data['allowed'] = -2
+                elif post.votes.filter(user=request.user).count() > 0:
+                    vote = post.votes.filter(user=request.user)[0]
+                    # unvote should be less than certain time
+                    if (datetime.datetime.now().day - vote.voted_at.day) >= VOTE_RULES['scope_deny_unvote_days']:
+                        response_data['status'] = 2
+                    else:
+                        voted = vote.vote
+                        if voted > 0:
+                            # cancel upvote
+                            onUpVotedCanceled(vote, post, request.user)
+
+                        else:
+                            # cancel downvote
+                            onDownVotedCanceled(vote, post, request.user)
+
+                        response_data['status'] = 1
+                        response_data['count'] = post.score
+                elif Vote.objects.get_votes_count_today_from_user(request.user) >= VOTE_RULES['scope_votes_per_user_per_day']:
+                    response_data['allowed'] = -3
+                else:
+                    vote = Vote(user=request.user, content_object=post, vote=vote_score, voted_at=datetime.datetime.now())
+                    if vote_score > 0:
+                        # upvote
+                        onUpVoted(vote, post, request.user)
+                    else:
+                        # downvote
+                        onDownVoted(vote, post, request.user)
+
+                    votes_left = VOTE_RULES['scope_votes_per_user_per_day'] - Vote.objects.get_votes_count_today_from_user(request.user)
+                    if votes_left <= VOTE_RULES['scope_warn_votes_left']:
+                        response_data['message'] = u'%s votes left' % votes_left
+                    response_data['count'] = post.score
+            elif vote_type in ['7', '8']:
+                post = question
+                post_id = id
+                if vote_type == '8':
+                    post_id = request.POST.get('postId')
+                    post = get_object_or_404(Answer, id=post_id)
+
+                if FlaggedItem.objects.get_flagged_items_count_today(request.user) >= VOTE_RULES['scope_flags_per_user_per_day']:
+                    response_data['allowed'] = -3
+                elif not auth.can_flag_offensive(request.user):
+                    response_data['allowed'] = -2
+                elif post.flagged_items.filter(user=request.user).count() > 0:
+                    response_data['status'] = 1
+                else:
+                    item = FlaggedItem(user=request.user, content_object=post, flagged_at=datetime.datetime.now())
+                    onFlaggedItem(item, post, request.user)
+                    response_data['count'] = post.offensive_flag_count
+                    # send signal when question or answer be marked offensive
+                    mark_offensive.send(sender=post.__class__, instance=post, mark_by=request.user)
+            elif vote_type in ['9', '10']:
+                post = question
+                post_id = id
+                if vote_type == '10':
+                    post_id = request.POST.get('postId')
+                    post = get_object_or_404(Answer, id=post_id)
+
+                if not auth.can_delete_post(request.user, post):
+                    response_data['allowed'] = -2
+                elif post.deleted == True:
+                    logging.debug('debug restoring post in view')
+                    onDeleteCanceled(post, request.user)
+                    response_data['status'] = 1
+                else:
+                    onDeleted(post, request.user)
+                    delete_post_or_answer.send(sender=post.__class__, instance=post, delete_by=request.user)
+            elif vote_type == '11':#subscribe q updates
+                user = request.user
+                if user.is_authenticated():
+                    if user not in question.followed_by.all():
+                        question.followed_by.add(user)
+                        if settings.EMAIL_VALIDATION == 'on' and user.email_isvalid == False:
+                            response_data['message'] = \
+                                    _('subscription saved, %(email)s needs validation, see %(details_url)s') \
+                                    % {'email':user.email,'details_url':reverse('faq') + '#validate'}
+                    feed_setting = EmailFeedSetting.objects.get(subscriber=user,feed_type='q_sel')
+                    if feed_setting.frequency == 'n':
+                        feed_setting.frequency = 'd'
+                        feed_setting.save()
+                        if 'message' in response_data:
+                            response_data['message'] += '<br/>'
+                        response_data['message'] = _('email update frequency has been set to daily')
+                    #response_data['status'] = 1
+                    #responst_data['allowed'] = 1
+                else:
+                    pass
+                    #response_data['status'] = 0
+                    #response_data['allowed'] = 0
+            elif vote_type == '12':#unsubscribe q updates
+                user = request.user
+                if user.is_authenticated():
+                    if user in question.followed_by.all():
+                        question.followed_by.remove(user)
+        else:
+            response_data['success'] = 0
+            response_data['message'] = u'Request mode is not supported. Please try again.'
+
+        data = simplejson.dumps(response_data)
+
+    except Exception, e:
+        response_data['message'] = str(e)
+        data = simplejson.dumps(response_data)
+    return HttpResponse(data, mimetype="application/json")
+
+#internally grouped views - used by the tagging system
+@ajax_login_required
+def mark_tag(request, tag=None, **kwargs):#tagging system
+    action = kwargs['action']
+    ts = MarkedTag.objects.filter(user=request.user, tag__name=tag)
+    if action == 'remove':
+        logging.debug('deleting tag %s' % tag)
+        ts.delete()
+    else:
+        reason = kwargs['reason']
+        if len(ts) == 0:
+            try:
+                t = Tag.objects.get(name=tag)
+                mt = MarkedTag(user=request.user, reason=reason, tag=t)
+                mt.save()
+            except:
+                pass
+        else:
+            ts.update(reason=reason)
+    return HttpResponse(simplejson.dumps(''), mimetype="application/json")
+
+@ajax_login_required
+def ajax_toggle_ignored_questions(request):#ajax tagging and tag-filtering system
+    if request.user.hide_ignored_questions:
+        new_hide_setting = False
+    else:
+        new_hide_setting = True
+    request.user.hide_ignored_questions = new_hide_setting
+    request.user.save()
+
+@ajax_method
+def ajax_command(request):#refactor? view processing ajax commands - note "vote" and view others do it too
+    if 'command' not in request.POST:
+        return HttpResponseForbidden(mimetype="application/json")
+    if request.POST['command'] == 'toggle-ignored-questions':
+        return ajax_toggle_ignored_questions(request)
+
+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/meta.py b/forum/views/meta.py
new file mode 100644
index 00000000..b7a1183c
--- /dev/null
+++ b/forum/views/meta.py
@@ -0,0 +1,98 @@
+from django.shortcuts import render_to_response, get_object_or_404
+from django.core.urlresolvers import reverse
+from django.template import RequestContext
+from django.http import HttpResponseRedirect, HttpResponse
+from forum.forms import FeedbackForm
+from django.core.mail import mail_admins
+from django.utils.translation import ugettext as _
+from utils.forms import get_next_url
+from forum.models import Badge, Award
+
+def about(request):
+    return render_to_response('about.html', context_instance=RequestContext(request))
+
+def faq(request):
+    data = {
+        'gravatar_faq_url': reverse('faq') + '#gravatar',
+        'send_email_key_url': reverse('send_email_key'),
+        'ask_question_url': reverse('ask'),
+    }
+    return render_to_response('faq.html', data, context_instance=RequestContext(request))
+
+def feedback(request):
+    data = {}
+    form = None
+    if request.method == "POST":
+        form = FeedbackForm(request.POST)
+        if form.is_valid():
+            if not request.user.is_authenticated:
+                data['email'] = form.cleaned_data.get('email',None)
+            data['message'] = form.cleaned_data['message']
+            data['name'] = form.cleaned_data.get('name',None)
+            message = render_to_response('feedback_email.txt',data,context_instance=RequestContext(request))
+            mail_admins(_('Q&A forum feedback'), message)
+            msg = _('Thanks for the feedback!')
+            request.user.message_set.create(message=msg)
+            return HttpResponseRedirect(get_next_url(request))
+    else:
+        form = FeedbackForm(initial={'next':get_next_url(request)})
+
+    data['form'] = form
+    return render_to_response('feedback.html', data, context_instance=RequestContext(request))
+feedback.CANCEL_MESSAGE=_('We look forward to hearing your feedback! Please, give it next time :)')
+
+def privacy(request):
+    return render_to_response('privacy.html', context_instance=RequestContext(request))
+
+def logout(request):#refactor/change behavior?
+#currently you click logout and you get
+#to this view which actually asks you again - do you really want to log out?
+#I guess rationale was to tell the user that s/he may be still logged in
+#through their external login sytem and we'd want to remind them about it
+#however it might be a little annoying
+#why not just show a message: you are logged out of osqa, but
+#if you really want to log out -> go to your openid provider
+    return render_to_response('logout.html', {
+        'next' : get_next_url(request),
+    }, context_instance=RequestContext(request))
+
+def badges(request):#user status/reputation system
+    badges = Badge.objects.all().order_by('type')
+    my_badges = []
+    if request.user.is_authenticated():
+        my_badges = Award.objects.filter(user=request.user)
+        my_badges.query.group_by = ['badge_id']
+
+    return render_to_response('badges.html', {
+        'badges' : badges,
+        'mybadges' : my_badges,
+        'feedback_faq_url' : reverse('feedback'),
+    }, context_instance=RequestContext(request))
+
+def badge(request, id):
+    badge = get_object_or_404(Badge, id=id)
+    awards = Award.objects.extra(
+        select={'id': 'auth_user.id', 
+                'name': 'auth_user.username', 
+                'rep':'auth_user.reputation', 
+                'gold': 'auth_user.gold', 
+                'silver': 'auth_user.silver', 
+                'bronze': 'auth_user.bronze'},
+        tables=['award', 'auth_user'],
+        where=['badge_id=%s AND user_id=auth_user.id'],
+        params=[id]
+    ).distinct('id')
+
+    return render_to_response('badge.html', {
+        'awards' : awards,
+        '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/users.py b/forum/views/users.py
new file mode 100644
index 00000000..03d38834
--- /dev/null
+++ b/forum/views/users.py
@@ -0,0 +1,943 @@
+from django.contrib.auth.decorators import login_required
+from django.contrib.auth.models import User
+from django.core.paginator import Paginator, EmptyPage, InvalidPage
+from django.core.urlresolvers import reverse
+from django.shortcuts import render_to_response, get_object_or_404
+from django.template import RequestContext
+from django.http import HttpResponse, HttpResponseForbidden
+from django.utils.translation import ugettext as _
+from forum.forms import *#incomplete list is EditUserForm, ModerateUserForm, TagFilterSelectionForm, 
+from forum import auth
+
+question_type = ContentType.objects.get_for_model(Question)
+answer_type = ContentType.objects.get_for_model(Answer)
+comment_type = ContentType.objects.get_for_model(Comment)
+question_revision_type = ContentType.objects.get_for_model(QuestionRevision)
+answer_revision_type = ContentType.objects.get_for_model(AnswerRevision)
+repute_type = ContentType.objects.get_for_model(Repute)
+question_type_id = question_type.id
+answer_type_id = answer_type.id
+comment_type_id = comment_type.id
+question_revision_type_id = question_revision_type.id
+answer_revision_type_id = answer_revision_type.id
+repute_type_id = repute_type.id
+
+# used in users
+class UserView:
+    def __init__(self, id, tab_title, tab_description, page_title, view_name, template_file, data_size=0):
+        self.id = id
+        self.tab_title = tab_title
+        self.tab_description = tab_description
+        self.page_title = page_title
+        self.view_name = view_name
+        self.template_file = template_file
+        self.data_size = data_size
+        
+USER_TEMPLATE_VIEWS = (
+    UserView(
+        id = 'stats',
+        tab_title = _('overview'),
+        tab_description = _('user profile'),
+        page_title = _('user profile overview'),
+        view_name = 'user_stats',
+        template_file = 'user_stats.html'
+    ),
+    UserView(
+        id = 'recent',
+        tab_title = _('recent activity'),
+        tab_description = _('recent user activity'),
+        page_title = _('profile - recent activity'),
+        view_name = 'user_recent',
+        template_file = 'user_recent.html',
+        data_size = 50
+    ),
+    UserView(
+        id = 'responses',
+        tab_title = _('responses'),
+        tab_description = _('comments and answers to others questions'),
+        page_title = _('profile - responses'),
+        view_name = 'user_responses',
+        template_file = 'user_responses.html',
+        data_size = 50
+    ),
+    UserView(
+        id = 'reputation',
+        tab_title = _('reputation'),
+        tab_description = _('user reputation in the community'),
+        page_title = _('profile - user reputation'),
+        view_name = 'user_reputation',
+        template_file = 'user_reputation.html'
+    ),
+    UserView(
+        id = 'favorites',
+        tab_title = _('favorite questions'),
+        tab_description = _('users favorite questions'),
+        page_title = _('profile - favorite questions'),
+        view_name = 'user_favorites',
+        template_file = 'user_favorites.html',
+        data_size = 50
+    ),
+    UserView(
+        id = 'votes',
+        tab_title = _('casted votes'),
+        tab_description = _('user vote record'),
+        page_title = _('profile - votes'),
+        view_name = 'user_votes',
+        template_file = 'user_votes.html',
+        data_size = 50
+    ),
+    UserView(
+        id = 'email_subscriptions',
+        tab_title = _('email subscriptions'),
+        tab_description = _('email subscription settings'),
+        page_title = _('profile - email subscriptions'),
+        view_name = 'user_email_subscriptions',
+        template_file = 'user_email_subscriptions.html'
+    )
+)
+
+def user(request, id):
+    sort = request.GET.get('sort', 'stats')
+    user_view = dict((v.id, v) for v in USER_TEMPLATE_VIEWS).get(sort, USER_TEMPLATE_VIEWS[0])
+    from forum import views
+    func = getattr(views, user_view.view_name)
+    return func(request, id, user_view)
+
+
+USERS_PAGE_SIZE = 35# refactor - move to some constants file
+
+def users(request):
+    is_paginated = True
+    sortby = request.GET.get('sort', 'reputation')
+    suser = request.REQUEST.get('q',  "")
+    try:
+        page = int(request.GET.get('page', '1'))
+    except ValueError:
+        page = 1
+
+    if suser == "":
+        if sortby == "newest":
+            objects_list = Paginator(User.objects.all().order_by('-date_joined'), USERS_PAGE_SIZE)
+        elif sortby == "last":
+            objects_list = Paginator(User.objects.all().order_by('date_joined'), USERS_PAGE_SIZE)
+        elif sortby == "user":
+            objects_list = Paginator(User.objects.all().order_by('username'), USERS_PAGE_SIZE)
+        # default
+        else:
+            objects_list = Paginator(User.objects.all().order_by('-reputation'), USERS_PAGE_SIZE)
+        base_url = reverse('users') + '?sort=%s&' % sortby
+    else:
+        sortby = "reputation"
+        objects_list = Paginator(User.objects.extra(where=['username like %s'], params=['%' + suser + '%']).order_by('-reputation'), USERS_PAGE_SIZE)
+        base_url = reverse('users') + '?name=%s&sort=%s&' % (suser, sortby)
+
+    try:
+        users = objects_list.page(page)
+    except (EmptyPage, InvalidPage):
+        users = objects_list.page(objects_list.num_pages)
+
+    return render_to_response('users.html', {
+                                "users" : users,
+                                "suser" : suser,
+                                "keywords" : suser,
+                                "tab_id" : sortby,
+                                "context" : {
+                                    'is_paginated' : is_paginated,
+                                    'pages': objects_list.num_pages,
+                                    'page': page,
+                                    'has_previous': users.has_previous(),
+                                    'has_next': users.has_next(),
+                                    'previous': users.previous_page_number(),
+                                    'next': users.next_page_number(),
+                                    'base_url' : base_url
+                                }
+
+                                }, context_instance=RequestContext(request))
+
+@login_required
+def moderate_user(request, id):
+    """ajax handler of user moderation
+    """
+    if not auth.can_moderate_users(request.user) or request.method != 'POST':
+        raise Http404
+    if not request.is_ajax():
+        return HttpResponseForbidden(mimetype="application/json")
+
+    user = get_object_or_404(User, id=id)
+    form = ModerateUserForm(request.POST, instance=user)
+
+    if form.is_valid():
+        form.save()
+        logging.debug('data saved')
+        response = HttpResponse(simplejson.dumps(''), mimetype="application/json")
+    else:
+        response = HttpResponseForbidden(mimetype="application/json")
+    return response
+
+@login_required
+def edit_user(request, id):
+    user = get_object_or_404(User, id=id)
+    if request.user != user:
+        raise Http404
+    if request.method == "POST":
+        form = EditUserForm(user, request.POST)
+        if form.is_valid():
+            new_email = sanitize_html(form.cleaned_data['email'])
+
+            from django_authopenid.views import set_new_email
+            set_new_email(user, new_email)
+
+            #user.username = sanitize_html(form.cleaned_data['username'])
+            user.real_name = sanitize_html(form.cleaned_data['realname'])
+            user.website = sanitize_html(form.cleaned_data['website'])
+            user.location = sanitize_html(form.cleaned_data['city'])
+            user.date_of_birth = sanitize_html(form.cleaned_data['birthday'])
+            if len(user.date_of_birth) == 0:
+                user.date_of_birth = '1900-01-01'
+            user.about = sanitize_html(form.cleaned_data['about'])
+
+            user.save()
+            # send user updated singal if full fields have been updated
+            if user.email and user.real_name and user.website and user.location and \
+                user.date_of_birth and user.about:
+                user_updated.send(sender=user.__class__, instance=user, updated_by=user)
+            return HttpResponseRedirect(user.get_profile_url())
+    else:
+        form = EditUserForm(user)
+    return render_to_response('user_edit.html', {
+                                                'form' : form,
+                                                'gravatar_faq_url' : reverse('faq') + '#gravatar',
+                                    }, context_instance=RequestContext(request))
+
+def user_stats(request, user_id, user_view):
+    user = get_object_or_404(User, id=user_id)
+    questions = Question.objects.extra(
+        select={
+            'vote_count' : 'question.score',
+            'favorited_myself' : 'SELECT count(*) FROM favorite_question f WHERE f.user_id = %s AND f.question_id = question.id',
+            'la_user_id' : 'auth_user.id',
+            'la_username' : 'auth_user.username',
+            'la_user_gold' : 'auth_user.gold',
+            'la_user_silver' : 'auth_user.silver',
+            'la_user_bronze' : 'auth_user.bronze',
+            'la_user_reputation' : 'auth_user.reputation'
+            },
+        select_params=[user_id],
+        tables=['question', 'auth_user'],
+        where=['question.deleted=False AND question.author_id=%s AND question.last_activity_by_id = auth_user.id'],
+        params=[user_id],
+        order_by=['-vote_count', '-last_activity_at']
+    ).values('vote_count',
+             'favorited_myself',
+             'id',
+             'title',
+             'author_id',
+             'added_at',
+             'answer_accepted',
+             'answer_count',
+             'comment_count',
+             'view_count',
+             'favourite_count',
+             'summary',
+             'tagnames',
+             'vote_up_count',
+             'vote_down_count',
+             'last_activity_at',
+             'la_user_id',
+             'la_username',
+             'la_user_gold',
+             'la_user_silver',
+             'la_user_bronze',
+             'la_user_reputation')[:100]
+
+    answered_questions = Question.objects.extra(
+        select={
+            'vote_up_count' : 'answer.vote_up_count',
+            'vote_down_count' : 'answer.vote_down_count',
+            'answer_id' : 'answer.id',
+            'accepted' : 'answer.accepted',
+            'vote_count' : 'answer.score',
+            'comment_count' : 'answer.comment_count'
+            },
+        tables=['question', 'answer'],
+        where=['answer.deleted=False AND question.deleted=False AND answer.author_id=%s AND answer.question_id=question.id'],
+        params=[user_id],
+        order_by=['-vote_count', '-answer_id'],
+        select_params=[user_id]
+    ).distinct().values('comment_count',
+                        'id',
+                        'answer_id',
+                        'title',
+                        'author_id',
+                        'accepted',
+                        'vote_count',
+                        'answer_count',
+                        'vote_up_count',
+                        'vote_down_count')[:100]
+
+    up_votes = Vote.objects.get_up_vote_count_from_user(user)
+    down_votes = Vote.objects.get_down_vote_count_from_user(user)
+    votes_today = Vote.objects.get_votes_count_today_from_user(user)
+    votes_total = auth.VOTE_RULES['scope_votes_per_user_per_day']
+
+    question_id_set = set(map(lambda v: v['id'], list(questions))) \
+                        | set(map(lambda v: v['id'], list(answered_questions)))
+
+    user_tags = Tag.objects.filter(questions__id__in = question_id_set)
+    try:
+        from django.db.models import Count
+        awards = Award.objects.extra(
+                                        select={'id': 'badge.id', 
+                                                'name':'badge.name', 
+                                                'description': 'badge.description', 
+                                                'type': 'badge.type'},
+                                        tables=['award', 'badge'],
+                                        order_by=['-awarded_at'],
+                                        where=['user_id=%s AND badge_id=badge.id'],
+                                        params=[user.id]
+                                    ).values('id', 'name', 'description', 'type')
+        total_awards = awards.count()
+        awards = awards.annotate(count = Count('badge__id'))
+        user_tags = user_tags.annotate(user_tag_usage_count=Count('name'))
+
+    except ImportError:
+        awards = Award.objects.extra(
+                                        select={'id': 'badge.id', 
+                                                'count': 'count(badge_id)', 
+                                                'name':'badge.name', 
+                                                'description': 'badge.description', 
+                                                'type': 'badge.type'},
+                                        tables=['award', 'badge'],
+                                        order_by=['-awarded_at'],
+                                        where=['user_id=%s AND badge_id=badge.id'],
+                                        params=[user.id]
+                                    ).values('id', 'count', 'name', 'description', 'type')
+        total_awards = awards.count()
+        awards.query.group_by = ['badge_id']
+
+        user_tags = user_tags.extra(
+            select={'user_tag_usage_count': 'COUNT(1)',},
+            order_by=['-user_tag_usage_count'],
+        )
+        user_tags.query.group_by = ['name']
+
+    if auth.can_moderate_users(request.user):
+        moderate_user_form = ModerateUserForm(instance=user)
+    else:
+        moderate_user_form = None
+
+    return render_to_response(user_view.template_file,{
+                                'moderate_user_form': moderate_user_form,
+                                "tab_name" : user_view.id,
+                                "tab_description" : user_view.tab_description,
+                                "page_title" : user_view.page_title,
+                                "view_user" : user,
+                                "questions" : questions,
+                                "answered_questions" : answered_questions,
+                                "up_votes" : up_votes,
+                                "down_votes" : down_votes,
+                                "total_votes": up_votes + down_votes,
+                                "votes_today_left": votes_total-votes_today,
+                                "votes_total_per_day": votes_total,
+                                "user_tags" : user_tags[:50],
+                                "awards": awards,
+                                "total_awards" : total_awards,
+                            }, context_instance=RequestContext(request))
+
+def user_recent(request, user_id, user_view):
+    user = get_object_or_404(User, id=user_id)
+    def get_type_name(type_id):
+        for item in TYPE_ACTIVITY:
+            if type_id in item:
+                return item[1]
+
+    class Event:
+        def __init__(self, time, type, title, summary, answer_id, question_id):
+            self.time = time
+            self.type = get_type_name(type)
+            self.type_id = type
+            self.title = title
+            self.summary = summary
+            slug_title = slugify(title)
+            self.title_link = reverse('question', kwargs={'id':question_id}) + u'%s' % slug_title
+            if int(answer_id) > 0:
+                self.title_link += '#%s' % answer_id
+
+    class AwardEvent:
+        def __init__(self, time, type, id):
+            self.time = time
+            self.type = get_type_name(type)
+            self.type_id = type
+            self.badge = get_object_or_404(Badge, id=id)
+
+    activities = []
+    # ask questions
+    questions = Activity.objects.extra(
+        select={
+            'title' : 'question.title',
+            'question_id' : 'question.id',
+            'active_at' : 'activity.active_at',
+            'activity_type' : 'activity.activity_type'
+            },
+        tables=['activity', 'question'],
+        where=['activity.content_type_id = %s AND activity.object_id = ' +
+            'question.id AND question.deleted=False AND activity.user_id = %s AND activity.activity_type = %s'],
+        params=[question_type_id, user_id, TYPE_ACTIVITY_ASK_QUESTION],
+        order_by=['-activity.active_at']
+    ).values(
+            'title',
+            'question_id',
+            'active_at',
+            'activity_type'
+            )
+    if len(questions) > 0:
+        questions = [(Event(q['active_at'], q['activity_type'], q['title'], '', '0', \
+                      q['question_id'])) for q in questions]
+        activities.extend(questions)
+
+    # answers
+    answers = Activity.objects.extra(
+        select={
+            'title' : 'question.title',
+            'question_id' : 'question.id',
+            'answer_id' : 'answer.id',
+            'active_at' : 'activity.active_at',
+            'activity_type' : 'activity.activity_type'
+            },
+        tables=['activity', 'answer', 'question'],
+        where=['activity.content_type_id = %s AND activity.object_id = answer.id AND ' + 
+            'answer.question_id=question.id AND answer.deleted=False AND activity.user_id=%s AND '+ 
+            'activity.activity_type=%s AND question.deleted=False'],
+        params=[answer_type_id, user_id, TYPE_ACTIVITY_ANSWER],
+        order_by=['-activity.active_at']
+    ).values(
+            'title',
+            'question_id',
+            'answer_id',
+            'active_at',
+            'activity_type'
+            )
+    if len(answers) > 0:
+        answers = [(Event(q['active_at'], q['activity_type'], q['title'], '', q['answer_id'], \
+                    q['question_id'])) for q in answers]
+        activities.extend(answers)
+
+    # question comments
+    comments = Activity.objects.extra(
+        select={
+            'title' : 'question.title',
+            'question_id' : 'comment.object_id',
+            'added_at' : 'comment.added_at',
+            'activity_type' : 'activity.activity_type'
+            },
+        tables=['activity', 'question', 'comment'],
+
+        where=['activity.content_type_id = %s AND activity.object_id = comment.id AND '+
+            'activity.user_id = comment.user_id AND comment.object_id=question.id AND '+
+            'comment.content_type_id=%s AND activity.user_id = %s AND activity.activity_type=%s AND ' +
+            'question.deleted=False'],
+        params=[comment_type_id, question_type_id, user_id, TYPE_ACTIVITY_COMMENT_QUESTION],
+        order_by=['-comment.added_at']
+    ).values(
+            'title',
+            'question_id',
+            'added_at',
+            'activity_type'
+            )
+
+    if len(comments) > 0:
+        comments = [(Event(q['added_at'], q['activity_type'], q['title'], '', '0', \
+                     q['question_id'])) for q in comments]
+        activities.extend(comments)
+
+    # answer comments
+    comments = Activity.objects.extra(
+        select={
+            'title' : 'question.title',
+            'question_id' : 'question.id',
+            'answer_id' : 'answer.id',
+            'added_at' : 'comment.added_at',
+            'activity_type' : 'activity.activity_type'
+            },
+        tables=['activity', 'question', 'answer', 'comment'],
+
+        where=['activity.content_type_id = %s AND activity.object_id = comment.id AND '+
+            'activity.user_id = comment.user_id AND comment.object_id=answer.id AND '+
+            'comment.content_type_id=%s AND question.id = answer.question_id AND '+
+            'activity.user_id = %s AND activity.activity_type=%s AND '+
+            'answer.deleted=False AND question.deleted=False'],
+        params=[comment_type_id, answer_type_id, user_id, TYPE_ACTIVITY_COMMENT_ANSWER],
+        order_by=['-comment.added_at']
+    ).values(
+            'title',
+            'question_id',
+            'answer_id',
+            'added_at',
+            'activity_type'
+            )
+
+    if len(comments) > 0:
+        comments = [(Event(q['added_at'], q['activity_type'], q['title'], '', q['answer_id'], \
+                     q['question_id'])) for q in comments]
+        activities.extend(comments)
+
+    # question revisions
+    revisions = Activity.objects.extra(
+        select={
+            'title' : 'question_revision.title',
+            'question_id' : 'question_revision.question_id',
+            'added_at' : 'activity.active_at',
+            'activity_type' : 'activity.activity_type',
+            'summary' : 'question_revision.summary'
+            },
+        tables=['activity', 'question_revision', 'question'],
+        where=['activity.content_type_id = %s AND activity.object_id = question_revision.id AND '+
+            'question_revision.id=question.id AND question.deleted=False AND '+
+            'activity.user_id = question_revision.author_id AND activity.user_id = %s AND '+
+            'activity.activity_type=%s'],
+        params=[question_revision_type_id, user_id, TYPE_ACTIVITY_UPDATE_QUESTION],
+        order_by=['-activity.active_at']
+    ).values(
+            'title',
+            'question_id',
+            'added_at',
+            'activity_type',
+            'summary'
+            )
+
+    if len(revisions) > 0:
+        revisions = [(Event(q['added_at'], q['activity_type'], q['title'], q['summary'], '0', \
+                      q['question_id'])) for q in revisions]
+        activities.extend(revisions)
+
+    # answer revisions
+    revisions = Activity.objects.extra(
+        select={
+            'title' : 'question.title',
+            'question_id' : 'question.id',
+            'answer_id' : 'answer.id',
+            'added_at' : 'activity.active_at',
+            'activity_type' : 'activity.activity_type',
+            'summary' : 'answer_revision.summary'
+            },
+        tables=['activity', 'answer_revision', 'question', 'answer'],
+
+        where=['activity.content_type_id = %s AND activity.object_id = answer_revision.id AND '+
+            'activity.user_id = answer_revision.author_id AND activity.user_id = %s AND '+
+            'answer_revision.answer_id=answer.id AND answer.question_id = question.id AND '+
+            'question.deleted=False AND answer.deleted=False AND '+
+            'activity.activity_type=%s'],
+        params=[answer_revision_type_id, user_id, TYPE_ACTIVITY_UPDATE_ANSWER],
+        order_by=['-activity.active_at']
+    ).values(
+            'title',
+            'question_id',
+            'added_at',
+            'answer_id',
+            'activity_type',
+            'summary'
+            )
+
+    if len(revisions) > 0:
+        revisions = [(Event(q['added_at'], q['activity_type'], q['title'], q['summary'], \
+                      q['answer_id'], q['question_id'])) for q in revisions]
+        activities.extend(revisions)
+
+    # accepted answers
+    accept_answers = Activity.objects.extra(
+        select={
+            'title' : 'question.title',
+            'question_id' : 'question.id',
+            'added_at' : 'activity.active_at',
+            'activity_type' : 'activity.activity_type',
+            },
+        tables=['activity', 'answer', 'question'],
+        where=['activity.content_type_id = %s AND activity.object_id = answer.id AND '+
+            'activity.user_id = question.author_id AND activity.user_id = %s AND '+
+            'answer.deleted=False AND question.deleted=False AND '+
+            'answer.question_id=question.id AND activity.activity_type=%s'],
+        params=[answer_type_id, user_id, TYPE_ACTIVITY_MARK_ANSWER],
+        order_by=['-activity.active_at']
+    ).values(
+            'title',
+            'question_id',
+            'added_at',
+            'activity_type',
+            )
+    if len(accept_answers) > 0:
+        accept_answers = [(Event(q['added_at'], q['activity_type'], q['title'], '', '0', \
+            q['question_id'])) for q in accept_answers]
+        activities.extend(accept_answers)
+    #award history
+    awards = Activity.objects.extra(
+        select={
+            'badge_id' : 'badge.id',
+            'awarded_at': 'award.awarded_at',
+            'activity_type' : 'activity.activity_type'
+            },
+        tables=['activity', 'award', 'badge'],
+        where=['activity.user_id = award.user_id AND activity.user_id = %s AND '+
+            'award.badge_id=badge.id AND activity.object_id=award.id AND activity.activity_type=%s'],
+        params=[user_id, TYPE_ACTIVITY_PRIZE],
+        order_by=['-activity.active_at']
+    ).values(
+            'badge_id',
+            'awarded_at',
+            'activity_type'
+            )
+    if len(awards) > 0:
+        awards = [(AwardEvent(q['awarded_at'], q['activity_type'], q['badge_id'])) for q in awards]
+        activities.extend(awards)
+
+    activities.sort(lambda x,y: cmp(y.time, x.time))
+
+    return render_to_response(user_view.template_file,{
+                                    "tab_name" : user_view.id,
+                                    "tab_description" : user_view.tab_description,
+                                    "page_title" : user_view.page_title,
+                                    "view_user" : user,
+                                    "activities" : activities[:user_view.data_size]
+                                }, context_instance=RequestContext(request))
+
+def user_responses(request, user_id, user_view):
+    """
+    We list answers for question, comments, and answer accepted by others for this user.
+    """
+    class Response:
+        def __init__(self, type, title, question_id, answer_id, time, username, user_id, content):
+            self.type = type
+            self.title = title
+            self.titlelink = reverse('question', args=[question_id]) + u'%s#%s' % (slugify(title), answer_id)
+            self.time = time
+            self.userlink = reverse('users') + u'%s/%s/' % (user_id, username)
+            self.username = username
+            self.content = u'%s ...' % strip_tags(content)[:300]
+
+        def __unicode__(self):
+            return u'%s %s' % (self.type, self.titlelink)
+
+    user = get_object_or_404(User, id=user_id)
+    responses = []
+    answers = Answer.objects.extra(
+                                    select={
+                                        'title' : 'question.title',
+                                        'question_id' : 'question.id',
+                                        'answer_id' : 'answer.id',
+                                        'added_at' : 'answer.added_at',
+                                        'html' : 'answer.html',
+                                        'username' : 'auth_user.username',
+                                        'user_id' : 'auth_user.id'
+                                        },
+                                    select_params=[user_id],
+                                    tables=['answer', 'question', 'auth_user'],
+                                    where=['answer.question_id = question.id AND answer.deleted=False AND question.deleted=False AND '+
+                                        'question.author_id = %s AND answer.author_id <> %s AND answer.author_id=auth_user.id'],
+                                    params=[user_id, user_id],
+                                    order_by=['-answer.id']
+                                ).values(
+                                        'title',
+                                        'question_id',
+                                        'answer_id',
+                                        'added_at',
+                                        'html',
+                                        'username',
+                                        'user_id'
+                                        )
+    if len(answers) > 0:
+        answers = [(Response(TYPE_RESPONSE['QUESTION_ANSWERED'], a['title'], a['question_id'],
+        a['answer_id'], a['added_at'], a['username'], a['user_id'], a['html'])) for a in answers]
+        responses.extend(answers)
+
+
+    # question comments
+    comments = Comment.objects.extra(
+                                select={
+                                    'title' : 'question.title',
+                                    'question_id' : 'comment.object_id',
+                                    'added_at' : 'comment.added_at',
+                                    'comment' : 'comment.comment',
+                                    'username' : 'auth_user.username',
+                                    'user_id' : 'auth_user.id'
+                                    },
+                                tables=['question', 'auth_user', 'comment'],
+                                where=['question.deleted=False AND question.author_id = %s AND comment.object_id=question.id AND '+
+                                    'comment.content_type_id=%s AND comment.user_id <> %s AND comment.user_id = auth_user.id'],
+                                params=[user_id, question_type_id, user_id],
+                                order_by=['-comment.added_at']
+                            ).values(
+                                    'title',
+                                    'question_id',
+                                    'added_at',
+                                    'comment',
+                                    'username',
+                                    'user_id'
+                                    )
+
+    if len(comments) > 0:
+        comments = [(Response(TYPE_RESPONSE['QUESTION_COMMENTED'], c['title'], c['question_id'],
+            '', c['added_at'], c['username'], c['user_id'], c['comment'])) for c in comments]
+        responses.extend(comments)
+
+    # answer comments
+    comments = Comment.objects.extra(
+        select={
+            'title' : 'question.title',
+            'question_id' : 'question.id',
+            'answer_id' : 'answer.id',
+            'added_at' : 'comment.added_at',
+            'comment' : 'comment.comment',
+            'username' : 'auth_user.username',
+            'user_id' : 'auth_user.id'
+            },
+        tables=['answer', 'auth_user', 'comment', 'question'],
+        where=['answer.deleted=False AND answer.author_id = %s AND comment.object_id=answer.id AND '+
+            'comment.content_type_id=%s AND comment.user_id <> %s AND comment.user_id = auth_user.id '+
+            'AND question.id = answer.question_id'],
+        params=[user_id, answer_type_id, user_id],
+        order_by=['-comment.added_at']
+    ).values(
+            'title',
+            'question_id',
+            'answer_id',
+            'added_at',
+            'comment',
+            'username',
+            'user_id'
+            )
+
+    if len(comments) > 0:
+        comments = [(Response(TYPE_RESPONSE['ANSWER_COMMENTED'], c['title'], c['question_id'],
+        c['answer_id'], c['added_at'], c['username'], c['user_id'], c['comment'])) for c in comments]
+        responses.extend(comments)
+
+    # answer has been accepted
+    answers = Answer.objects.extra(
+        select={
+            'title' : 'question.title',
+            'question_id' : 'question.id',
+            'answer_id' : 'answer.id',
+            'added_at' : 'answer.accepted_at',
+            'html' : 'answer.html',
+            'username' : 'auth_user.username',
+            'user_id' : 'auth_user.id'
+            },
+        select_params=[user_id],
+        tables=['answer', 'question', 'auth_user'],
+        where=['answer.question_id = question.id AND answer.deleted=False AND question.deleted=False AND '+
+            'answer.author_id = %s AND answer.accepted=True AND question.author_id=auth_user.id'],
+        params=[user_id],
+        order_by=['-answer.id']
+    ).values(
+            'title',
+            'question_id',
+            'answer_id',
+            'added_at',
+            'html',
+            'username',
+            'user_id'
+            )
+    if len(answers) > 0:
+        answers = [(Response(TYPE_RESPONSE['ANSWER_ACCEPTED'], a['title'], a['question_id'],
+            a['answer_id'], a['added_at'], a['username'], a['user_id'], a['html'])) for a in answers]
+        responses.extend(answers)
+
+    # sort posts by time
+    responses.sort(lambda x,y: cmp(y.time, x.time))
+
+    return render_to_response(user_view.template_file,{
+        "tab_name" : user_view.id,
+        "tab_description" : user_view.tab_description,
+        "page_title" : user_view.page_title,
+        "view_user" : user,
+        "responses" : responses[:user_view.data_size],
+
+    }, context_instance=RequestContext(request))
+
+def user_votes(request, user_id, user_view):
+    user = get_object_or_404(User, id=user_id)
+    if not auth.can_view_user_votes(request.user, user):
+        raise Http404
+    votes = []
+    question_votes = Vote.objects.extra(
+        select={
+            'title' : 'question.title',
+            'question_id' : 'question.id',
+            'answer_id' : 0,
+            'voted_at' : 'vote.voted_at',
+            'vote' : 'vote',
+            },
+        select_params=[user_id],
+        tables=['vote', 'question', 'auth_user'],
+        where=['vote.content_type_id = %s AND vote.user_id = %s AND vote.object_id = question.id '+
+            'AND vote.user_id=auth_user.id'],
+        params=[question_type_id, user_id],
+        order_by=['-vote.id']
+    ).values(
+            'title',
+            'question_id',
+            'answer_id',
+            'voted_at',
+            'vote',
+            )
+    if(len(question_votes) > 0):
+        votes.extend(question_votes)
+
+    answer_votes = Vote.objects.extra(
+        select={
+            'title' : 'question.title',
+            'question_id' : 'question.id',
+            'answer_id' : 'answer.id',
+            'voted_at' : 'vote.voted_at',
+            'vote' : 'vote',
+            },
+        select_params=[user_id],
+        tables=['vote', 'answer', 'question', 'auth_user'],
+        where=['vote.content_type_id = %s AND vote.user_id = %s AND vote.object_id = answer.id '+
+            'AND answer.question_id = question.id AND vote.user_id=auth_user.id'],
+        params=[answer_type_id, user_id],
+        order_by=['-vote.id']
+    ).values(
+            'title',
+            'question_id',
+            'answer_id',
+            'voted_at',
+            'vote',
+            )
+    if(len(answer_votes) > 0):
+        votes.extend(answer_votes)
+    votes.sort(lambda x,y: cmp(y['voted_at'], x['voted_at']))
+    return render_to_response(user_view.template_file,{
+        "tab_name" : user_view.id,
+        "tab_description" : user_view.tab_description,
+        "page_title" : user_view.page_title,
+        "view_user" : user,
+        "votes" : votes[:user_view.data_size]
+
+    }, context_instance=RequestContext(request))
+
+def user_reputation(request, user_id, user_view):
+    user = get_object_or_404(User, id=user_id)
+    try:
+        from django.db.models import Sum
+        reputation = Repute.objects.extra(
+                                          select={'question_id':'question_id',
+                                          'title': 'question.title'},
+                                          tables=['repute', 'question'],
+                                          order_by=['-reputed_at'],
+                                          where=['user_id=%s AND question_id=question.id'],
+                                          params=[user.id]
+                                          ).values('question_id', 'title', 'reputed_at', 'reputation')
+        reputation = reputation.annotate(positive=Sum("positive"), negative=Sum("negative"))
+    except ImportError:
+        reputation = Repute.objects.extra(
+                                          select={'positive':'sum(positive)', 'negative':'sum(negative)', 'question_id':'question_id',
+                                          'title': 'question.title'},
+                                          tables=['repute', 'question'],
+                                          order_by=['-reputed_at'],
+                                          where=['user_id=%s AND question_id=question.id'],
+                                          params=[user.id]
+                                          ).values('positive', 'negative', 'question_id', 'title', 'reputed_at', 'reputation')
+        reputation.query.group_by = ['question_id']
+
+    rep_list = []
+    for rep in Repute.objects.filter(user=user).order_by('reputed_at'):
+        dic = '[%s,%s]' % (calendar.timegm(rep.reputed_at.timetuple()) * 1000, rep.reputation)
+        rep_list.append(dic)
+    reps = ','.join(rep_list)
+    reps = '[%s]' % reps
+
+    return render_to_response(user_view.template_file, {
+                              "tab_name": user_view.id,
+                              "tab_description": user_view.tab_description,
+                              "page_title": user_view.page_title,
+                              "view_user": user,
+                              "reputation": reputation,
+                              "reps": reps
+                              }, context_instance=RequestContext(request))
+
+def user_favorites(request, user_id, user_view):
+    user = get_object_or_404(User, id=user_id)
+    questions = Question.objects.extra(
+        select={
+            'vote_count' : 'question.vote_up_count + question.vote_down_count',
+            'favorited_myself' : 'SELECT count(*) FROM favorite_question f WHERE f.user_id = %s '+
+                'AND f.question_id = question.id',
+            'la_user_id' : 'auth_user.id',
+            'la_username' : 'auth_user.username',
+            'la_user_gold' : 'auth_user.gold',
+            'la_user_silver' : 'auth_user.silver',
+            'la_user_bronze' : 'auth_user.bronze',
+            'la_user_reputation' : 'auth_user.reputation'
+            },
+        select_params=[user_id],
+        tables=['question', 'auth_user', 'favorite_question'],
+        where=['question.deleted=True AND question.last_activity_by_id = auth_user.id '+
+            'AND favorite_question.question_id = question.id AND favorite_question.user_id = %s'],
+        params=[user_id],
+        order_by=['-vote_count', '-question.id']
+    ).values('vote_count',
+             'favorited_myself',
+             'id',
+             'title',
+             'author_id',
+             'added_at',
+             'answer_accepted',
+             'answer_count',
+             'comment_count',
+             'view_count',
+             'favourite_count',
+             'summary',
+             'tagnames',
+             'vote_up_count',
+             'vote_down_count',
+             'last_activity_at',
+             'la_user_id',
+             'la_username',
+             'la_user_gold',
+             'la_user_silver',
+             'la_user_bronze',
+             'la_user_reputation')
+    return render_to_response(user_view.template_file,{
+        "tab_name" : user_view.id,
+        "tab_description" : user_view.tab_description,
+        "page_title" : user_view.page_title,
+        "questions" : questions[:user_view.data_size],
+        "view_user" : user
+    }, context_instance=RequestContext(request))
+
+def user_email_subscriptions(request, user_id, user_view):
+    user = get_object_or_404(User, id=user_id)
+    if request.method == 'POST':
+        email_feeds_form = EditUserEmailFeedsForm(request.POST)
+        tag_filter_form = TagFilterSelectionForm(request.POST, instance=user)
+        if email_feeds_form.is_valid() and tag_filter_form.is_valid():
+
+            action_status = None
+            tag_filter_saved = tag_filter_form.save()
+            if tag_filter_saved:
+                action_status = _('changes saved')
+            if 'save' in request.POST:
+                feeds_saved = email_feeds_form.save(user)
+                if feeds_saved:
+                    action_status = _('changes saved')
+            elif 'stop_email' in request.POST:
+                email_stopped = email_feeds_form.reset().save(user)
+                initial_values = EditUserEmailFeedsForm.NO_EMAIL_INITIAL
+                email_feeds_form = EditUserEmailFeedsForm(initial=initial_values)
+                if email_stopped:
+                    action_status = _('email updates canceled')
+    else:
+        email_feeds_form = EditUserEmailFeedsForm()
+        email_feeds_form.set_initial_values(user)
+        tag_filter_form = TagFilterSelectionForm(instance=user)
+        action_status = None
+    return render_to_response(user_view.template_file,{
+        'tab_name':user_view.id,
+        'tab_description':user_view.tab_description,
+        'page_title':user_view.page_title,
+        'view_user':user,
+        'email_feeds_form':email_feeds_form,
+        'tag_filter_selection_form':tag_filter_form,
+        'action_status':action_status,
+    }, context_instance=RequestContext(request))
+
diff --git a/forum/views.py b/forum/views/views.py
index 4d214bad..4d214bad 100644
--- a/forum/views.py
+++ b/forum/views/views.py