code: function _prepUpdate(data) {
      var vals = [];
      var sorted = Object.keys(data).sort();
      var i = -1;
      while (++i < sorted.length) {
        vals.push(this.formatter.wrap(sorted[i]) + ' = ' + this.formatter.parameter(data[sorted[i]]));
      }
      return vals;
    }
docs: "Preps" the update.