ember-data-rollback-new-deletes-bug

components.ember-data-test-rollback-new\.js

import Component from '@glimmer/component';
import { tracked } from '@glimmer/tracking';
import { inject as service } from '@ember/service';

export default class extends Component {
  @tracked log;
  @service store;
  constructor() {
    super(...arguments);
    this.log = [];
    let record = this.store.createRecord('dummy');
    this.log.push('➡ Created a new record');
    record.name = 'Bob';
    this.log.push('➡ Set name to "Bob"');
    this.log.push('✓ record.name = ' + record.name);
    this.log.push('✓ record.isNew = ' + record.isNew);
    this.log.push('✓ record.isDeleted = ' + record.isDeleted);
    record.rollbackAttributes();
    this.log.push('➡ Rolled back attributes');
    this.log.push('✓ record.name = ' + record.name);
    this.log.push('✗ record.isNew = ' + record.isNew + "\t(THIS IS WRONG!)");
    this.log.push('✗ record.isDeleted = ' + record.isDeleted + "\t(THIS IS WRONG!)");
  }
}

controllers.application\.js

import Controller from '@ember/controller';

export default class ApplicationController extends Controller {
  appName = 'Ember Twiddle';
}

models.dummy\.js

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

export default class extends Model {
  @attr("string") name
}

templates.application\.hbs

{{ember-data-test-rollback-new}}

templates.components.ember-data-test-rollback-new\.hbs

<h1>Testing Ember Data - Rollback on New Record</h1>

<ul>
{{#each log as |entry|}}
<li>{{entry}}</li>
{{/each}}
</ul>

twiddle\.json

{
  "version": "0.17.0",
  "EmberENV": {
    "FEATURES": {},
    "_TEMPLATE_ONLY_GLIMMER_COMPONENTS": false,
    "_APPLICATION_TEMPLATE_WRAPPER": true,
    "_JQUERY_INTEGRATION": true
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.17.0",
    "ember-template-compiler": "3.17.0",
    "ember-testing": "3.17.0"
  },
  "addons": {
    "@glimmer/component": "1.0.0",
    "ember-data": "3.12.5"
  }
}