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@bfitch
Created November 21, 2016 01:32
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Rollback Changeset hasMany
import Ember from 'ember';
import Changeset from 'ember-changeset';
export default Ember.Controller.extend({
init() {
this._super(...arguments);
this.get('store').createRecord('foo', {
users: [
this.get('store').createRecord('user', {name: 'bob'}),
this.get('store').createRecord('user', {name: 'bill'})
]
});
const foo = this.get('store').peekAll('foo').get('firstObject');
const changeset = new Changeset(foo);
this.set('foo', changeset);
},
appName: 'Ember Twiddle',
fooChanges: Ember.computed('foo.changes', function() {
return JSON.stringify(this.get('foo.changes'),null,2);
}),
actions: {
titleChanged(event) {
if (event.code === 'Enter') {
this.set('foo.title', event.target.value);
event.target.value = '';
}
},
changeUsers() {
this.get('foo.users').setObjects([
this.get('store').createRecord('user', {name: 'janet'}),
this.get('store').createRecord('user', {name: 'rhonda'})
]);
},
rollbackUsers() {
console.log(this.get('foo.changes'));
this.get('foo').rollback();
}
}
});
import Model from "ember-data/model";
import attr from "ember-data/attr";
import { belongsTo, hasMany } from "ember-data/relationships";
export default Model.extend({
title: attr('string'),
users: DS.hasMany('user', { async: true })
});
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('string')
});
<h2>Users association:</h2>
<ul>
{{#each foo.users as |user|}}
<li>{{user.name}}</li>
{{/each}}
</ul>
<h2>Foo Title (enter to submit):</h2>
<label>Change:
<input onkeyup={{action 'titleChanged'}}/>
</label>
<br>
<br>
<div>
<button onclick={{action 'changeUsers'}}>Change Users</button>
<button onclick={{action 'rollbackUsers'}}>Rollback</button>
</div>
<br>
<hr>
<h3>Changeset changes:</h3>
<pre>{{fooChanges}}</pre>
{{outlet}}
{
"version": "0.10.6",
"EmberENV": {
"FEATURES": {}
},
"options": {
"use_pods": false,
"enable-testing": false
},
"dependencies": {
"jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
"ember": "2.9.0",
"ember-data": "2.9.0",
"ember-template-compiler": "2.9.0",
"ember-testing": "2.9.0"
},
"addons": {
"ember-changeset": "1.2.0"
}
}
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