discourse/app/assets/javascripts/admin/controllers/admin-email-logs.js.es6

import EmailLog from "admin/models/email-log";

export default Ember.Controller.extend({
  loading: false,

  actions: {
    loadMore() {
      if (this.get("loading") || this.get("model.allLoaded")) {
        return;
      }

      this.set("loading", true);
      return EmailLog.findAll(this.get("filter"), this.get("model.length"))
        .then(logs => {
          if (logs.length < 50) {
            this.get("model").set("allLoaded", true);
          }
          this.get("model").addObjects(logs);
        })
        .finally(() => {
          this.set("loading", false);
        });
    }
  }
});