Modify RSS item selection code to always return a feed item if there is at

least one item in the category.

rss/feeds.py

@@ -22,12 +22,13 @@ class DailyFeed(Feed):
     def items(self, obj):
         now = datetime.now()
         now_tuple = now.timetuple()
-        starting_date = datetime(now_tuple.tm_year if now_tuple.tm_mon >= obj.starting_month else now_tuple.tm_year - 1, obj.starting_month, 1)
-        day_number = ((now - starting_date).days + 1) % obj.days_required
 
-        try:
-            feed_item = FeedItem.objects.get(feed_category=obj, day_number=day_number)
-        except FeedItem.DoesNotExist:
+        item_count = FeedItem.objects.filter(feed_category=obj).count()
+        if item_count > 0:
+            starting_date = datetime(now_tuple.tm_year if now_tuple.tm_mon >= obj.starting_month else now_tuple.tm_year - 1, obj.starting_month, 1)
+            offset = (now - starting_date).days % item_count
+            feed_item = list(FeedItem.objects.filter(feed_category=obj).order_by('day_number')[offset:offset + 1])[0]
+        else:
             feed_item = None
 
         if feed_item is None: