       meta    : data.meta
     JPost::modify.call @, client, discussion, callback
 
-  reply: secure (client, comment, callback)->
-    JPost::reply.call @, client, JComment, comment, callback
+  reply: secure (client, opinion, callback)->
+    JOpinion.create.call @, client, opinion, callback
 
 class CDiscussionActivity extends CActivity
   @share()

class JDiscussion extends JPost

  {secure} = require 'bongo'

    sharedMethods : JPost.sharedMethods
    schema        : JPost.schema
    relationships     :
      opinion         : JOpinion
      participant     :
        targetType    : JAccount
        as            : ['author','commenter']
