import Controller from '@ember/controller'; import {computed} from '@ember/object'; import {inject as injectController} from '@ember/controller'; import {inject as injectService} from '@ember/service'; import {match} from '@ember/object/computed'; export default Controller.extend({ appController: injectController('application'), ghostPaths: injectService(), showBackLink: match('appController.currentRouteName', /^setup\.(two|three)$/), backRoute: computed('appController.currentRouteName', function () { let currentRoute = this.get('appController.currentRouteName'); return currentRoute === 'setup.two' ? 'setup.one' : 'setup.two'; }) });