promiseproxy service

application.route.js

export default Ember.Route.extend({
  model() {
    return this.get('community');
  }
});

initializers.community.js

export function initialize(container, application) {
  application.inject('controller', 'community', 'service:community');
  application.inject('route', 'community', 'service:community');
  application.inject('model', 'community', 'service:community');
  application.inject('component', 'community', 'service:community');
}

export default {
  name: 'community',
  after: 'store',
  initialize: initialize
};

services.community.js

import Ember from 'ember';

const { computed, inject, ObjectProxy, PromiseProxyMixin } = Ember;

export default ObjectProxy.extend(PromiseProxyMixin, {
  isServiceFactory: true,
  store: inject.service(),

  promise: computed({
    get() {
      var store = this.get('store');

      return store.findRecord('community', window.community.id);
    }
  })
});