couchdb/general/_design/subscribers/views/by_podcast/map.js

   1 function(doc)
   2 {
   3     if(doc.doc_type == "PodcastUserState")
   4     {
   5         var subscribed_devices = [];
   6
   7         for(var n in doc.actions)
   8         {
   9             var action = doc.actions[n];
  10
  11             if(action.action == "subscribe")
  12             {
  13                 subscribed_devices.push(action.device);
  14             }
  15             else if(action.action == "unsubscribe")
  16             {
  17                 var index = subscribed_devices.indexOf(action.device);
  18                 subscribed_devices.splice(index, 1);
  19             }
  20         }
  21
  22         if (subscribed_devices.length > 0)
  23         {
  24             emit([doc.podcast, doc.user], null);
  25         }
  26     }
  27 }