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); }); } } });