Tiny simple sort-action for Ember.js ArrayController content

gistfile1.js

App.UsersController = Ember.ArrayController.extend({
  sortProperties: ['name'],
  sortAscending: true,

  reSort: function(sortBtnValue) {
    var sortProperty = this.get('sortProperties')[0];
    if (sortProperty == sortBtnValue) {
      if (this.get('sortAscending')) {
        this.set('sortAscending', false);
      } else {
        this.set('sortAscending', true);
      }
    }
    this.set('sortProperties', [sortBtnValue]);
  }
});

Can use 'toggleProperty' as well:

App.UsersController = Ember.ArrayController.extend({
sortProperties: ['name'],
sortAscending: true,

reSort: function(sortBtnValue) {
var sortProperty = this.get('sortProperties')[0];
if (sortProperty == sortBtnValue) {
this.toggleProperty('sortAscending');
}
this.set('sortProperties', [sortBtnValue]);
}
});