apostrophe-caches-index.js

    self.getCollection = function(callback) {
      return self.apos.db.collection('aposCache', function(err, collection) {
        if (err) {
          return callback(err);
        }
        self.cacheCollection = collection;
        return async.series({
          keyIndex: function(callback) {
            return self.cacheCollection.ensureIndex({ key: 1, cache: 1 }, { unique: true }, callback);
          },
          expireIndex: function(callback) {
            return self.cacheCollection.ensureIndex({ expires: 1 }, { expireAfterSeconds: 0 }, callback);
          }
        }, callback);
      });
    };