AttrNested.js

import DS from "ember-data";

var attribute = DS.attr;

export default DS.Model.extend({
  name: attribute({
    first: attribute('string'),
    last: attribute('string')
  }),
  time_stamp: attribute('string', {
		defaultValue: function () {
			return moment().format("YYYY/MM/DD HH:mm:ss");
		}
	})
});

import DS from "ember-data";

var attribute = DS.attr;

export default DS.Model.extend({
  name: attribute(),
  time_stamp: attribute('string', {
        defaultValue: function () {
            return moment().format("YYYY/MM/DD HH:mm:ss");
        }
    })
});