server/services/explore-service.js

   1 'use strict';
   2
   3 var persistence = require('gitter-web-persistence');
   4 var cacheWrapper = require('gitter-web-cache-wrapper');
   5
   6 /**
   7  * fetchByTags() retrives rooms that match a given set of tags
   8  *
   9  * tags     Array the querying tags
  10  * @return  Promise promise of matching rooms
  11  */
  12 function fetchByTags(tags) {
  13   // limit by 8 tags to avoid mega queries
  14   tags = tags.slice(0, 8);
  15
  16   return persistence.Troupe.find({
  17     'sd.public': true,
  18     tags: {
  19       $in: tags
  20     }
  21   })
  22     .sort({ userCount: -1 })
  23     .limit(50)
  24     .exec();
  25 }
  26
  27 exports.fetchByTags = fetchByTags;
  28
  29 exports.fetchByTagsCached = cacheWrapper('fetchByTagsCached', fetchByTags);