Used get_current_site in comments feed class

django/contrib/comments/feeds.py

-from django.conf import settings
 from django.contrib.syndication.views import Feed
-from django.contrib.sites.models import Site
+from django.contrib.sites.models import get_current_site
 from django.contrib import comments
 from django.utils.translation import ugettext as _
 
 class LatestCommentFeed(Feed):
     """Feed of latest comments on the current site."""
 
+    def __call__(self, request, *args, **kwargs):
+        self.site = get_current_site(request)
+        return super(LatestCommentFeed, self).__call__(request, *args, **kwargs)
+
     def title(self):
-        if not hasattr(self, '_site'):
-            self._site = Site.objects.get_current()
-        return _("%(site_name)s comments") % dict(site_name=self._site.name)
+        return _("%(site_name)s comments") % dict(site_name=self.site.name)
 
     def link(self):
-        if not hasattr(self, '_site'):
-            self._site = Site.objects.get_current()
-        return "http://%s/" % (self._site.domain)
+        return "http://%s/" % (self.site.domain)
 
     def description(self):
-        if not hasattr(self, '_site'):
-            self._site = Site.objects.get_current()
-        return _("Latest comments on %(site_name)s") % dict(site_name=self._site.name)
+        return _("Latest comments on %(site_name)s") % dict(site_name=self.site.name)
 
     def items(self):
         qs = comments.get_model().objects.filter(
-            site__pk = settings.SITE_ID,
+            site__pk = self.site.pk,
             is_public = True,
             is_removed = False,
         )

tests/regressiontests/comment_tests/tests/feed_tests.py

 from __future__ import absolute_import
 
+from django.conf import settings
+from django.contrib.comments.models import Comment
+from django.contrib.contenttypes.models import ContentType
+from django.contrib.sites.models import Site
+
 from . import CommentTestCase
+from ..models import Article
 
 
 class CommentFeedTests(CommentTestCase):
     urls = 'regressiontests.comment_tests.urls'
     feed_url = '/rss/comments/'
 
+    def setUp(self):
+        site_2 = Site.objects.create(id=settings.SITE_ID+1,
+            domain="example2.com", name="example2.com")
+        # A comment for another site
+        c5 = Comment.objects.create(
+            content_type = ContentType.objects.get_for_model(Article),
+            object_pk = "1",
+            user_name = "Joe Somebody",
+            user_email = "jsomebody@example.com",
+            user_url = "http://example.com/~joe/",
+            comment = "A comment for the second site.",
+            site = site_2,
+        )
+
     def test_feed(self):
         response = self.client.get(self.feed_url)
         self.assertEqual(response.status_code, 200)
@@ -15,3 +35,4 @@ class CommentFeedTests(CommentTestCase):
         self.assertContains(response, '<title>example.com comments</title>')
         self.assertContains(response, '<link>http://example.com/</link>')
         self.assertContains(response, '</rss>')
+        self.assertNotContains(response, "A comment for the second site.")

tests/regressiontests/comment_tests/urls.py

@@ -15,6 +15,7 @@ urlpatterns = patterns('',
     url(r'^flag/(\d+)/$', views.custom_flag_comment),
     url(r'^delete/(\d+)/$', views.custom_delete_comment),
     url(r'^approve/(\d+)/$', views.custom_approve_comment),
+    url(r'^cr/(\d+)/(.+)/$', 'django.contrib.contenttypes.views.shortcut', name='comments-url-redirect'),
 )
 
 urlpatterns += patterns('',