SO-38970530/creating-alias-to-a-dynamic-property-now-that-ember-binding-is-deprecated

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  init(){
    this._super(...arguments);  
    var type= this.get('type');    
    Ember.defineProperty(this,'setting',Ember.computed('model.settings.' + type,function(){
    return this.get('model.settings.'+type);
    }));
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  actions:{
    changeType(){
      this.set('model.settings.admin','changed-adminsettings');
    }
  }
});

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
  model(){
    return {'settings':{'admin':'adminsettings','user':'usersettings'}};
   }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
{{my-component model=model type='admin' }}
<br>
<button {{action 'changeType'}}> ChangeType</button>
{{outlet}}
<br>
<br>

templates.components.my-component.hbs

{{type}} -- {{setting}}
{{log setting}}
{{yield}}

twiddle.json

{
  "version": "0.10.4",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.7.0",
    "ember-data": "2.7.0",
    "ember-template-compiler": "2.7.0"
  },
  "addons": {}
}