couchdb/_design/toplist/views/episodes/map.js

   1 function(doc)
   2 {
   3     if(doc.doc_type != "Episode")
   4     {
   5         return;
   6     }
   7
   8     function getLanguage(podcast)
   9     {
  10         if (podcast.language)
  11         {
  12             return podcast.language.slice(0, 2);
  13         }
  14
  15         return null;
  16     };
  17
  18     function doEmit(date_str, language, listeners)
  19     {
  20         if(listeners <= 0)
  21         {
  22             return;
  23         }
  24
  25         emit([date_str, "", listeners], null);
  26
  27         if(language)
  28         {
  29             emit([date_str, language, listeners], null);
  30         }
  31     };
  32
  33     var toplist_period = 7;
  34
  35     if(doc.listeners <= 0 || doc.released == null)
  36     {
  37         return;
  38     }
  39
  40     dateString = doc.released.slice(0, 10);
  41     dateParts = dateString.split("-");
  42     dateParts = dateParts.map(Number);
  43
  44     var language = getLanguage(doc);
  45
  46     for(var i=0; i<toplist_period; i++)
  47     {
  48         dateObj = new Date(dateParts[0], dateParts[1]-1, dateParts[2]+i);
  49         year = dateObj.getFullYear();
  50         month = Number(dateObj.getMonth()) + 1;
  51         if(month < 10)
  52         {
  53             month = "0" + month;
  54         }
  55         day = Number(dateObj.getDate());
  56         if(day < 10)
  57         {
  58             day = "0" + day;
  59         }
  60
  61         dateStr = year + "-" + month + "-" + day;
  62
  63         doEmit(dateStr, language, doc.listeners);
  64     }
  65 }