code: function () {
          var f = [], len, i;
          this.filters.each(function (filter) {
              if (filter.active) {
                  f.push(filter);
              }
          });
  
          len = f.length;
          return function (record) {
              for (i = 0; i < len; i++) {
                  if (!f[i].validateRecord(record)) {
                      return false;
                  }
              }
              return true;
          };
      }
docs: Method factory that generates a record validator for the filters active at the time
  of invokation.
  @private