onLoad/onUpdate

controllers.application.js

import Ember from 'ember';
import { inject as service } from '@ember/service';

export default Ember.Controller.extend({
  store: service(),
  appName: 'Ember Twiddle',
  
  async init() {
    // Open the console
    this.loadDog(1);
    await sleep(1000);
    this.loadDog(1);
    await sleep(1000);
    this.loadDog(1, { name: "Local Dog" });
  },
  
  loadDog(id, overrides) {
    console.log(`Loading dog ${id} from server`);
  	this.store.push({
      data: [{
        type: "dog",
        id: id,
        attributes: {
          name: "Remote Dog",
          ...overrides,
        },
      }],
    }); 
  }
});

async function sleep(timeout) {
	await new Promise(resolve => setTimeout(resolve, timeout));
}

models.dog.js

import Model from 'ember-data/model';
import attr from 'ember-data/attr';
import { belongsTo, hasMany } from 'ember-data/relationships';

export default Model.extend({
  name: attr(),
  
  didLoad() {
  	console.log(`Dog didLoad id=${this.id}`);
  },
  
  didUpdate() {
   	console.log(`Dog didUpdate id=${this.id}`); 
  }
});

twiddle.json

{
  "version": "0.15.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.4.3",
    "ember-template-compiler": "3.4.3",
    "ember-testing": "3.4.3"
  },
  "addons": {
    "ember-data": "3.4.2"
  }
}