Front-End Web Development: The Big Nerd Ranch Guide

For the More Curious: setupController and afterModel

The hook setupController is for setting properties on a controller that will render those properties. It is possible to run the default behavior of setting the controller’s model property while setting other active controller properties with this._super:

setupController(controller, model) {
  this._super(controller, model);
  // this.controllerFor('[other controller]').set("[property name]", [value]);
}

The hook afterModel is run after the model hook (which is a Promise) is resolved. Note that there are special cases where the model hook would not be called because the Promise has already been resolved. In these cases, afterModel is called before setupController and can be used ...