Undefined fields in model - ember-data

Question

I'm learning ember.js (ember-cli and ember-data = 2.7) and facing problems using models. Some models appears as 'undefined'
import DS from 'ember-data';
export default DS.Model.extend({
revision: DS.attr('number'),
pub_date: DS.attr('date'),
contenido: DS.attr('string'),
contenidoHtml: DS.attr(),
cambios: DS.attr('string'),
cambiosHtml: DS.attr(),
notify: DS.attr('boolean'),
URI: DS.attr('string'),
firmas: DS.attr()
});
I have a simple serializer, like this:
// serializers/application.js
import DS from 'ember-data';
export default DS.JSONAPISerializer.extend({
primaryKey: 'id'
});
This is the response from the API:
{
"data": [
{
"attributes": {
"URI": "",
"cambios": "Commit inicial",
"cambiosHtml": "<p>Commit inicial</p>",
"contenido": "No por mucho _madrugar_, amanece más __temprano__.",
"contenidoHtml": "<p>No por mucho <em>madrugar</em>, amanece más <strong>temprano</strong>.</p>",
"firmas": {
...
"reviso": "Zamora"
},
"notify": false,
"pub_date": "2011-09-30",
"revision": 0
},
"id": "7a09d345-27cc-45ef-bf58-488354c25239",
...
],
"links": {
...
},
"meta": {
...
}
}
}
Now, according to Ember Inspector, the fields contenidoHtml, cambiosHtml and pub_date are undefined or empty.
Do I missing something?

Answer 1

In Ember Data the convention is to camelize attribute names on a model
pub_date - is not follwed this so it should be changed to pubDate
JSONAPISerializer expects attributes to be dasherized in the document
payload returned by your server:
cambiosHtml - change it to cambios-html
contenidoHtml - change it to contenido-html
pub_date - change it to pub-date
If you dont have control over the API, then you might want to create model specific serializers by running the below ember-cli command,
ember generate serializers 'model-name'
app/serializers/model-name.js
import DS from 'ember-data';
export default DS.JSONAPISerializer.extend({
attrs: {
cambiosHtml: 'cambiosHtml',
contenidoHtml: 'contenidoHtml',
pubDate: 'pub_date'
}
});
https://guides.emberjs.com/v2.8.0/models/customizing-serializers/#toc_attribute-names