ember-validators with server validation errors

my-controller.js

MyController = Ember.Controller.extend({
  actions: {
    save: function() {
      this.get('model').save().then(function() {
        // Success, maybe transitionToRoute or whatever
      }, function(xhr) {
        // Oh noes, we had an error, maybe it's a validation error
        if (xhr.status == 400) {
          $.parseJSON(xhr.responseText).each(function(attribute, errors) {
            this.get('errors').set(attribute, errors);
          });
        }
      });
    }
  }
});