loopback for auto populate created / modified time

gistfile1.txt

module.exports = function(Base) {
        Base.beforeCreate = function (next, data)
        {
                this.created = new Date();
                this.modified = new Date();
                next();
        };

        Base.beforeSave = function (next, data)
        {
                this.modified = new Date();
                next();
        };
};