plugins.js

import Ember from 'ember';

export default Ember.Route.extend({
  plugins: Ember.inject.service(),

  model(params) {
    /*
      I'm assuming the plugin service have a method called mount
      which "mounts" a plugin. This method returns a promise... Ember
      won't move out of the model hook.
    */
    return return this.get('plugins').mount('search').then((plugin) => {
      return plugin.search(params.query);
    });
  },

  deactivate() {
    return this.get('plugins').unmount('search');
  }
});