indexers for commentators, number of comments, and latest comment added.

svn path=/plone.app.discussion/trunk/; revision=27766

plone/app/discussion/catalog.py

@@ -8,12 +8,38 @@ from string import split, join
 
 from DateTime import DateTime
 
+from Products.CMFCore.interfaces import IContentish
+
+from Products.ZCatalog.interfaces import IZCatalog
+
 from plone.indexer import indexer
 
-from plone.app.discussion.interfaces import IComment
+from plone.app.discussion.interfaces import IConversation, IComment
+
 
 MAX_DESCRIPTION=25
 
+# Conversation Indexers
+
+from plone.indexer.interfaces import IIndexer
+
+@indexer(IContentish, IZCatalog)
+def total_comments(object):
+    conversation = IConversation(object)
+    return conversation.total_comments
+
+@indexer(IContentish, IZCatalog)
+def last_comment_date(object):
+    conversation = IConversation(object)
+    return conversation.last_comment_date
+
+@indexer(IContentish, IZCatalog)
+def commentators(object):
+    conversation = IConversation(object)
+    return conversation.commentators
+
+# Comment Indexers
+
 @indexer(IComment)
 def title(object):
     return object.title