How to make embedded hasMany relationships work with ember data

Question

I can\'t get embedded hasMany to work correctly with ember data.

I have something like this

App.Post = DS.Model.extend({
          


        

Answer 1

Adding an update to this incase others come across this post and are having a hard time figuring out what works with the current version of ember-data.

As of Ember Data 1.0.0.beta.7, you need to override the appropriate methods on the serializer. Here's an example:

1) Reopen the serializer (credit to this post):

DS.RESTSerializer.reopen({
  serializeHasMany: function(record, json, relationship) {
    var hasManyRecords, key;
    key = relationship.key;
    hasManyRecords = Ember.get(record, key);
    if (hasManyRecords && relationship.options.embedded === "always") {
      json[key] = [];
      hasManyRecords.forEach(function(item, index) {
        // use includeId: true if you want the id of each model on the hasMany relationship
        json[key].push(item.serialize({ includeId: true }));
      });
    } else {
      this._super(record, json, relationship);
    }
  }
});

2) Add the embedded: 'always' option to the relationship on the model:

App.Post = DS.Model.extend({
  comments: DS.hasMany('comment', {
    embedded: 'always'
  })
});