Merge pull request #2 from udacity/update_django

[osqa.git] / forum / feed.py

diff --git a/forum/feed.py b/forum/feed.py
index e74e80e4fdafef45e27181d1935e3f75e281c13d..c52e64bf8214b3df9b299cfa8b1d31c50cbf6c88 100644 (file)
--- a/forum/feed.py
+++ b/forum/feed.py
@@ -1,31 +1,58 @@
-#!/usr/bin/env python
-#encoding:utf-8
-#-------------------------------------------------------------------------------
-# Name:        Syndication feed class for subsribtion
-# Purpose:
-#
-# Author:      Mike
-#
-# Created:     29/01/2009
-# Copyright:   (c) CNPROG.COM 2009
-# Licence:     GPL V2
-#-------------------------------------------------------------------------------
-from django.contrib.syndication.feeds import Feed, FeedDoesNotExist
+# -*- coding: utf-8 -*-
+
+try:
+    from django.contrib.syndication.views import Feed, FeedDoesNotExist, add_domain
+    old_version = False
+except:
+    from django.contrib.syndication.feeds import Feed, FeedDoesNotExist, add_domain
+    old_version = True
+
+from django.http import HttpResponse
+from django.utils.encoding import smart_unicode
 from django.utils.translation import ugettext as _
+from django.utils.safestring import mark_safe
 from models import Question
 from forum import settings
-class RssLastestQuestionsFeed(Feed):
-    title = settings.APP_TITLE + _(' - ')+ _('latest questions')
-    link = settings.APP_URL #+ '/' + _('question/')
-    description = settings.APP_DESCRIPTION
-    #ttl = 10
-    copyright = settings.APP_COPYRIGHT
+from forum.modules import decorate
+from forum.utils.pagination import generate_uri
+
+@decorate(add_domain, needs_origin=False)
+def add_domain(domain, url, *args, **kwargs):
+    return "%s%s" % (settings.APP_BASE_URL, url)
+
+class BaseNodeFeed(Feed):
+    if old_version:
+        title_template = "feeds/rss_title.html"
+        description_template = "feeds/rss_description.html"
+
+    def __init__(self, request, title, description, url):
+        self._title = u"%s" % smart_unicode(title)
+        self._description = mark_safe(u"%s" % smart_unicode(description))
+        self._url = url
+
+        if old_version:
+            super(BaseNodeFeed, self).__init__('', request)
+
+    def title(self):
+        return u"%s" % smart_unicode(self._title)
+
+    def link(self):
+        return self._url
+
+    def description(self):
+        return u"%s" % smart_unicode(self._description)
+
+    def item_title(self, item):
+        return u"%s" % smart_unicode(item.title)
+
+    def item_description(self, item):
+        return u"%s" % smart_unicode(item.html)
 
     def item_link(self, item):
-        return self.link + item.get_absolute_url()
+        return item.leaf.get_absolute_url()
 
     def item_author_name(self, item):
-        return item.author.username
+        return u"%s" % smart_unicode(item.author.username)
 
     def item_author_link(self, item):
         return item.author.get_profile_url()
@@ -33,11 +60,60 @@ class RssLastestQuestionsFeed(Feed):
     def item_pubdate(self, item):
         return item.added_at
 
-    def items(self, item):
-       return Question.objects.filter_state(deleted=False).order_by('-last_activity_at')[:30]
+    if old_version:
+        def __call__(self, request):
+            feedgen = self.get_feed('')
+            response = HttpResponse(mimetype=feedgen.mime_type)
+            feedgen.write(response, 'utf-8')
+            return response
+
+
+class RssQuestionFeed(BaseNodeFeed):
+    def __init__(self, request, question_list, title, description):
+        url = request.path + "?" + generate_uri(request.GET, (_('page'), _('pagesize'), _('sort')))
+        super(RssQuestionFeed, self).__init__(request, title, description, url)
+
+        self._question_list = question_list
+
+    def item_categories(self, item):
+        return item.tagname_list()  
+
+    def _items(self):
+       return self._question_list
+
+    def items(self):
+        return self._items()[:30]
+
+class RssAnswerFeed(BaseNodeFeed):
+    if old_version:
+        title_template = "feeds/rss_answer_title.html"
+
+    def __init__(self, request, question, include_comments=False):
+        super(RssAnswerFeed, self).__init__(
+            request, _("Answers to: %s") % smart_unicode(question.title),
+            question.html,
+            question.get_absolute_url()
+        )
+        self._question = question
+        self._include_comments = include_comments
+
+    def _items(self):
+        if self._include_comments:
+            qs = self._question.all_children
+        else:
+            qs = self._question.answers
+
+        return qs.filter_state(deleted=False).order_by('-added_at')
 
-def main():
-    pass
+    def items(self):
+        return self._items()[:30]
 
-if __name__ == '__main__':
-    main()
+    def item_title(self, item):
+        if item.node_type == "answer":
+            return _("Answer by %s") % smart_unicode(item.author.username)
+        else:
+            return _("Comment by %(cauthor)s on %(pauthor)s's %(qora)s") % dict(
+                cauthor=smart_unicode(item.author.username),
+                pauthor=smart_unicode(item.parent.author.username),
+                qora=(item.parent.node_type == "answer" and _("answer") or _("question"))
+            )