zzarcon / ember-delegations

:arrow_left: :arrow_right: Plugin for delegating ember properties in a very descriptive and easy way

Ember Property Delegation

=================

Plugin for delegate ember properties in a very descriptive and easy way, based on Ruby delegate module

For example, you have a dashboard controller and you want to access a list of properties of your application controller, usually you declare each property in your controller and assign the value via Ember.computed.alias :

After

  App.DashboardController = Ember.ObjectController.extend({
    needs: ['application'],
    name: Ember.computed.alias('controllers.application.name'),
    version: Ember.computed.alias('controllers.application.version'),
    currentPath: Ember.computed.alias('controllers.application.currentPath')
  });

Now

  App.DashboardController = Ember.ObjectController.extend({
    needs: ['application'],
    delegates: {properties: 'name version currentPath', to: 'controllers.application'}
  });

In both cases the result is the same; from the dashboard context you can access to the three delegate properties but the second is much more elegant and declarative :D

Multiple delegation

var animal = Ember.Object.create({
  type: 'animal',
  name: 'Brian'
});
var alien = Ember.Object.create({
  eyes: {
    number: 4,
    color: 'green'
  }
});

var dog = Em.Object.create({
  animal: animal,
  alien: alien,
  delegates: [
    {properties: 'type name', to: 'animal'},
    {properties: 'eyes', to: 'alien'}
  ]
});

CONTRIBUTING

Runing tests

grunt connect:test:keepalive

TODO

• Implement delegations with Ember.Binding