so#47875621

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
	"funnelContent": {
    "City": {
        "testingAttribute": "Hello City!",
        "one_number": 0,
        "other_number": 0
    },
    "Other City": {
        "testingAttribute": "Hello Other City!",
        "one_number": 0,
        "other_number": 0
    },
   "Kitchener-Waterloo": {
        "testingAttribute": "Hello Kitchener-Waterloo!",
         "one_number": 0,
         "other_number": 0
    }
	},
  
  init() {
    this.set("selectedOffice", "Kitchener-Waterloo");
  },
  
  actions: {
    changeOffice() {
      if (this.get('selectedOffice')==='City') {
        this.set('selectedOffice', 'Other City');
      } else if (this.get('selectedOffice') === 'Other City') {
        this.set('selectedOffice', 'Kitchener-Waterloo');
      } else if (this.get('selectedOffice') === 'Kitchener-Waterloo') {
        this.set('selectedOffice', 'City');
      }
    }
  }
});

templates.application.hbs

<h3>The selected office:</h3>
<h4>{{selectedOffice}}</h4>
<h3>The concat thing</h3>
<h4>{{concat selectedOffice '.testingAttribute'}}</h4>
<h3>The amazing title:</h3>
<h4>{{get funnelContent (concat selectedOffice '.testingAttribute')}}</h4>
<br>
<button onclick={{action "changeOffice"}}>Change Selected Office</button>

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}