couchdb/general/_design/toplist/views/podcasts/map.js

   1 function (doc)
   2 {
   3     function getLanguage(podcast)
   4     {
   5         if (podcast.language)
   6         {
   7             return podcast.language.slice(0, 2);
   8         }
   9
  10         return null;
  11     };
  12
  13     function doEmit(language, subscribers)
  14     {
  15         if(subscribers <= 0)
  16         {
  17             return;
  18         }
  19
  20         emit(["", subscribers], null);
  21
  22         if(language)
  23         {
  24             emit([language, subscribers], null);
  25         }
  26     }
  27
  28     if (doc.doc_type == "Podcast")
  29     {
  30         var language = getLanguage(doc);
  31
  32         if(doc.subscribers.length)
  33         {
  34             subscribers = doc.subscribers[doc.subscribers.length-1].subscriber_count;
  35         }
  36         else
  37         {
  38             subscribers = 0;
  39         }
  40
  41         doEmit(language, subscribers);
  42     }
  43     else if(doc.doc_type == "PodcastGroup")
  44     {
  45         var subscribers = 0;
  46         var language = null;
  47
  48         for(var n in doc.podcasts)
  49         {
  50             var podcast = doc.podcasts[n];
  51             if (podcast.subscribers.length)
  52             {
  53                 subscribers += podcast.subscribers[podcast.subscribers.length-1].subscriber_count;
  54             }
  55
  56             if(!language)
  57             {
  58                 language = getLanguage(podcast);
  59             }
  60         }
  61
  62         doEmit(language, subscribers);
  63     }
  64 }