gokatz
4/11/2016 - 10:52 AM

computed TWO WAY Binding

computed TWO WAY Binding

{
  "version": "0.7.2",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.4.4/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.4.3/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.4.4/ember-template-compiler.js"
  }
}
<h1>Welcome to {{appName}}</h1>
<br>
<button {{action 'testFunc'}}> Test </button>
<br>
{{outlet}}
<br>
<br>
import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  test: function() {
  	var wife = Ember.Object.create({
      householdIncome: 80000
    });

    var Husband = Ember.Object.extend({
      householdIncome: Ember.computed.alias('wife.householdIncome')
    });
//here computed.alias is used for two-way and readOnly can be used for one-way binding.
    var husband = Husband.create({
      wife: wife
    });
    
    console.log(husband);

    alert(husband.get('householdIncome')); // 80000

    // Someone gets raise.
    wife.set('householdIncome', 90000);
    alert(husband.get('householdIncome')); // 90000
    husband.set('householdIncome', 10000);
    alert(wife.get('householdIncome')); // 10000
  },
  actions: {
  	testFunc() {
    	this.test();
    }
  }
});