options-example.js

// app/initializers/options

import Ember from 'ember';
import config from '../config/environment';

// copied and modified from http://ember.zone/handling-environment-data-with-ember-js/
export default {
  name: 'options',
  initialize: function() {
    var OptionsReader = function OptionsReader() {

      this.readOptionsKeys = function() {
        var _mapType = function(val) {
          return "" === val ? null : "true" === val ? true : "false" === val ? false : (-1 !== val.indexOf(",") && (val = val.split(",")), val);
        };

        // Grab all the meta tags from the DOM.
        var metaTags = Ember.$("meta");
        var options = Ember.Object.create();
        var re = new RegExp(config.modulePrefix + '\/');

        // Process each of the discovered meta tags.
        for(var i=0; i < metaTags.length; i++) {
          var key = Ember.$(metaTags[i]).attr('name');
          var value = Ember.$(metaTags[i]).attr('content');

          // Does the meta tag start with our MODULE_PREFIX?
          if (re.test(key)) {
            // get the last element of path in name as property name
            // all elements after that in name path are property name
            // or parent elements that correspond to nested object
            // create the parent object if they don't exist yet
            // otherwise assign new property at proper nesting

            var nameParts = Ember.A(key.split('/'));
            var propertyName = nameParts.get('lastObject');

            // ignore MODULE_PREFIX/initializers/options
            // also skip actual propertyName
            var parents = nameParts.filter(function(item, index) {
              if (index > 2 && item !== propertyName) {
                return true;
              }
              return false;
            });

            // loop through nesting and create parent objects if necessary
            var currentObject = options;
            parents.forEach(function(item, index) {
              if (!currentObject.hasOwnProperty(item)) {
                currentObject[item] = Ember.Object.create();
              }

              currentObject = currentObject[item];

              // is this last parent, should we set property value?
              if (parents.get('length') === index + 1) {
                // Map the string values to actual types.
                currentObject[propertyName] = _mapType(value);
              }
            });
          }
        }

        return options;
      };
    };

    var optionsReader = new OptionsReader();
    // config.options.setProperties(optionsReader.readOptionsKeys());
    config.options = optionsReader.readOptionsKeys();
  }
};

// app/controllers/application.js
import Ember from 'ember';
import config from '../config/environment';

export default Ember.Controller.extend({
  options: config.options
});

// app/templates/application.hbs
<h2 id="title">{{options.question.summary}}</h2>

{{outlet}}