import IncomingEmail from 'admin/models/incoming-email'; export default Ember.Controller.extend({ loading: false, actions: { loadMore() { if (this.get("loading") || this.get("model.allLoaded")) { return; } this.set('loading', true); IncomingEmail.findAll(this.get("filter"), this.get("model.length")) .then(incoming => { if (incoming.length < 50) { this.get("model").set("allLoaded", true); } this.get("model").addObjects(incoming); }).finally(() => { this.set('loading', false); }); } } });