Changeset 2530

Timestamp:

02/06/10 22:04:05 (6 weeks ago)

Author:

JensDiemer

Message:

New: Update Journal can send RSS/Atom feeds.

Location:

branches/0.9/pylucid_project/pylucid_plugins/update_journal

Files:

• models.py (modified) (1 diff)
• templates/update_journal/feed_description.html (added)
• templates/update_journal/select_feed.html (added)
• urls.py (added)
• views.py (modified) (2 diffs)

branches/0.9/pylucid_project/pylucid_plugins/update_journal/models.py

@@ -4 +4 @@
 from django.contrib.auth.models import User
 from django.contrib.sites.models import Site
-from django.utils.translation import ugettext as _
+from django.utils.translation import ugettext_lazy as _
 from django.contrib.contenttypes.models import ContentType
 from django.contrib.sites.managers import CurrentSiteManager

branches/0.9/pylucid_project/pylucid_plugins/update_journal/views.py

@@ -20 +20 @@
 __version__ = "$Rev$"
 
+
 from django.conf import settings
+from django.contrib.syndication.views import Feed
+from django.utils.translation import ugettext_lazy as _
+from django.utils.feedgenerator import Rss201rev2Feed, Atom1Feed
 
-from pylucid.models import Language
-from pylucid.decorators import render_to
+from pylucid_project.apps.pylucid.models import Language
+from pylucid_project.apps.pylucid.decorators import render_to
 
-from pylucid_project.system.pylucid_plugins import PYLUCID_PLUGINS
+from pylucid_project.pylucid_plugins.update_journal.models import UpdateJournal
 
-from models import UpdateJournal
 
+def _get_queryset(request, count):
+    """ TODO: Move to UpdateJournal.objects ? """
+    queryset = UpdateJournal.on_site.all()
+
+    accessible_lang = Language.objects.all_accessible(request.user)
+    queryset = queryset.filter(language__in=accessible_lang)
+
+    if not request.user.is_staff:
+        queryset = queryset.filter(staff_only=False)
+ 
+    return queryset[:count]
 
 
@@ -40 +54 @@
         count = 10
 
-    queryset = UpdateJournal.on_site.all()
-
-    accessible_lang = Language.objects.all_accessible(request.user)
-    queryset = queryset.filter(language__in=accessible_lang)
-
-    if not request.user.is_staff:
-        queryset = queryset.filter(staff_only=False)
-
-    queryset = queryset[:count]
+    queryset = _get_queryset(request, count)
 
     return {"update_list": queryset}
 
+
+class RssFeed(Feed):
+    feed_type = Rss201rev2Feed
+    filename = "feed.rss"
+    
+    title = "Update Journal"
+    link = "/"
+    description = "Updates and changes"
+    description_template = "update_journal/feed_description.html"
+    
+    def __init__(self, request):
+        self.count = 10 # FIXME: use GET parameter?
+        self.request = request
+
+    def items(self):
+        return _get_queryset(self.request, self.count)
+
+    def item_title(self, item):
+        return item.title
+    
+    def item_link(self, item):
+        return item.object_url
+
+
+class AtomFeed(RssFeed):
+    """
+    http://docs.djangoproject.com/en/dev/ref/contrib/syndication/#publishing-atom-and-rss-feeds-in-tandem
+    """
+    feed_type = Atom1Feed
+    filename = "feed.atom"
+    subtitle = RssFeed.description
+
+
+# The last class is the fallback class, if filename doesn't match
+FEEDS = [AtomFeed, RssFeed]
+
+
+@render_to("update_journal/select_feed.html")
+def select_feed(request):
+    """
+    Display a list with existing feed filenames.
+    """
+    context = {"feeds": FEEDS}
+    return context
+    
+
+def feed(request, filename):
+    """
+    return RSS/Atom feed selected by filename.
+    """
+    #print filename
+    for feed_class in FEEDS:
+        if filename == feed_class.filename:
+            break
+    
+    #print "feed class:", feed_class
+    feed = feed_class(request)
+    response = feed(request)
+    return response
+