Ember data mapping

Question

I'm using the latest version of ember-data (rev. 11) and the REST adapter to pull data from my API. A sample of the returned JSON looks like this:

{ 
    "events": [
        {
            "id": "5118dd8c4c80866ef2000051",
            "title": null,
            "starts_at": 1361901600,
            "ends_at": null,
            "currency": "SEK",
            "cents_door": 4000,
            "cents_advance": null,
            "price_door": "40.00 kr",
            "price_advance": null,
            "age_limit": null,
            "venue_section": "PLAYHOUSE",
            "description": null,
            "url": null,
            "repeats": null,
            "repeats_until": null,
            "venue_id": "nefertiti-jazz-club",
            "act_ids": [ "marias-playhouse" ]
        }
    ]
}

The model looks like this:

App.Event = DS.Model.extend
  title: DS.attr('string')
  startsAt: DS.attr('number')
  endsAt: DS.attr('number')
  currency: DS.attr('string')
  centsDoor: DS.attr('number')
  centsAdvance: DS.attr('number')
  priceDoor: DS.attr('string')
  priceAdvance: DS.attr('string')
  ageLimit: DS.attr('string')
  venueSection: DS.attr('string')
  description: DS.attr('string')
  url: DS.attr('string')
  repeats: DS.attr('string')
  repeatsUntil: DS.attr('string')
  venue: DS.belongsTo('App.Venue')
  acts: DS.hasMany('App.Act')

But when requesting the data, the request completes successfully, but I get this error in the console:

Uncaught Error: assertion failed: Your server returned a hash with the key events but you have no mapping for it

Any ideas what's going wrong here?

===

UPDATE: As requested I'm adding a bit more of my Ember.js app.

My RESTAdapter setup:

DS.RESTAdapter.registerTransform 'raw',
  deserialize: (serialized) ->
    serialized
  serialize: (deserialized) ->
    deserialized

App.Store = DS.Store.extend
  adapter: DS.RESTAdapter.create
    url: LJ.CONFIG.api.url
  revision: 11

And routes:

App.Router.map ->
  this.resource 'events', ->
    this.route 'new'
  this.resource 'event', path: '/events/:event_id', ->
    this.route 'edit'
  this.resource 'venue', path: '/venues/:venue_id', ->
    this.route 'edit'
    this.resource 'events'
  this.resource 'act', path: '/acts/:act_id', ->
    this.route 'edit'
    this.resource 'events'
  this.route 'search', path: '/search/:term'
  this.route 'doc', path: '/docs/:doc'

Teddy Zeenny Teddy Zeenny · Accepted Answer · 2013-02-26T18:49:25

The response looks perfect on first glance.

My guess is that you are sending the wrong format for the wrong request.

This format is valid for many events, which means a findAll or a findQuery (GET /events)

However, you might get this error if you are returning this response for a single find (GET /events/5118dd8c4c80866ef2000051)

In that case (when you are fetching only one event), your response should look like this:

{
  "event": {
    "id": "5118dd8c4c80866ef2000051",
    "title": null,
    // ... rest of attributes
  }
}

Ember data mapping

2 Answers