--- a/backend/couchdb/CouchDbBackend.py	Sat Aug 27 07:32:01 2011 +0200
+++ b/backend/couchdb/CouchDbBackend.py	Sat Aug 27 08:52:03 2011 +0200
@@ -1,14 +1,14 @@
 
 from FeedUpdater import FeedUpdater
 from Preferences import Preferences
+from backend.AbstractBackend import AbstractBackend
 from backend.couchdb.Feed import Feed
 from backend.couchdb.FeedEntry import FeedEntry
 import couchdb
 
-
 DATABASE = "feedtest"
 
-class CouchDbBackend(object):
+class CouchDbBackend(AbstractBackend):
     '''
     Backend that uses CouchDB for persistence
     '''
@@ -20,17 +20,43 @@
     def preferences(self):
         return Preferences(self.database)
 
+    #
+    # handling of feeds
+    #
+
     def getFeeds(self):
         if self.preferences().showOnlyUnreadFeeds():
-            return self._getUnreadFeeds()
+            self.feeds = self._getUnreadFeeds()
         else:
             # make sure that the results are actually fetched into memory, otherwise we'll pass
             # a ViewResults instance around which is not what we want
-            return list(Feed.all(self.database))
+            self.feeds = list(Feed.all(self.database))
+        return self.feeds
 
     def _getUnreadFeeds(self):
         raise Exception("not yet implemented")
 
+    def _retrieveEntriesForSelectedFeed(self, hideReadEntries):
+        # TODO how to hide read entries if requested?
+        viewResults = FeedEntry.view(self.database, "feedtest/feedEntries_by_feed",
+            key=self.selectedFeed.id)
+        return list(viewResults)
+
+    def markSelectedFeedAsRead(self):
+        for feedEntry in self.entriesForSelectedFeed():
+            feedEntry.markRead(self.database)
+
+    #
+    # handling of the selected feed entry
+    #
+
+    def _markSelectedFeedEntryRead(self):
+        self.selectedFeedEntry.markRead(self.database)
+
+    def toggleSelectedFeedEntryRead(self):
+        self.selectedFeedEntry.toggleRead(self.database)
+
+
     def toggleRead(self, feedEntry):
         raise Exception("not yet implemented")
 
@@ -52,8 +78,10 @@
             viewName = "feedtest/unread_feedEntries_by_feed"
         return list(FeedEntry.view(self.database, viewName))
 
-    def markFeedEntriesAsRead(self, entries):
-        raise Exception("not yet implemented")
+    def markFeedEntriesAsRead(self, indices):
+        for index in indices:
+            feedEntry = self.entriesForSelectedFeed()[index]
+            feedEntry.markRead(self.database)
 
     def updateAllFeeds(self):
         # TODO use a view instead of iterating all feeds
@@ -66,6 +94,3 @@
         print("Expiring feeds is not yet implemented")
 #        raise Exception("not yet implemented")
 
-    def dispose(self):
-        # nothing to do here
-        pass