This package has been deprecated

Author message:

Use the superior ember-computed-indirect instead

Ember-dynamic-alias

NOTE: I recently discovered the superior ember-computed-indirect, and I recommend you use that instead. I'll leave this available for anyone who prefers the observer approach used here.

Sometimes you want to create a computed property dependent on a key you'll only know at run-time--often a value on a model, or the value of a computed property. You probably don't need to do this often, but when the occasion arises it can be pretty handy.

There are a few ways to do this currently, but they're all a bit of a pain. This addon deals with it so you don't have to! It returns an observer which will keep an alias up-to-date.

Here's a simple example of how to use it.

import dynamicAlias from 'ember-dynamic-alias';

let thing = Ember.Object.extend({
  one: 1,
  two: 2,
  whichNumber: 'one',
  onWhichNumberChanged: dynamicAlias('whichNumber', 'myNumber')
}).create();

thing.get('myNumber'); // 1
thing.set('whichNumber', 'two');
thing.get('myNumber'); // 2

See a more complicated example.

Installation

• npm install ember-dynamic-alias --save

Running Tests

• npm test (Runs ember try:testall to test your addon against multiple Ember versions)
• ember test
• ember test --server