+class JOpinion extends JPost
+
+
 class JDiscussion extends JPost
 
   {secure} = require 'bongo'

      meta    : data.meta
    JPost::modify.call @, client, discussion, callback

  reply: secure (client, comment, callback)->
    JPost::reply.call @, client, JComment, comment, callback

class CDiscussionActivity extends CActivity
  @share()

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