--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/hgbook/comments/feeds.py	Mon Jan 25 18:56:45 2010 +0530
@@ -0,0 +1,35 @@
+from django.core.exceptions import ObjectDoesNotExist
+from django.utils.feedgenerator import Atom1Feed
+from django.contrib.syndication.feeds import Feed
+from hgbook.comments.models import Comment, Element
+
+class MyAtomFeed(Atom1Feed):
+    title_type = u'html'
+    
+class Comments(Feed):
+    feed_type = MyAtomFeed
+    title = 'Mercurial - The Definitive Guide: recent comments'
+    subtitle = ('Recent comments on the text of “Mercurial: The '
+                'Definitive Guide”, from our readers')
+    link = '/feeds/comments/'
+    author_name = 'Our readers'
+
+    def feedfilter(self, queryset):
+        return queryset.order_by('-date')[:20]
+
+    def items(self):
+        return self.feedfilter(Comment.objects)
+
+    def item_author_name(self, obj):
+        return obj.submitter_name
+
+    def item_pubdate(self, obj):
+        return obj.date
+
+    def get_object(self, bits):
+        if len(bits) == 0:
+            return self.items()
+        elif len(bits) > 1:
+            raise ObjectDoesNotExist
+        return self.feedfilter(Comment.objects.filter(element__chapter=bits[0],
+                                                      hidden=False))