Ember-Data: How to use `DS.Adapter.findHasMany`

Question

UPDATE

Note that this question applies to Ember Data pre-1.0 beta, the mechanism for loading relationships via URL has changed significantly post-1.0 beta!

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Answer 1

Here is my solution but it is on Ember-data 0.14, so the world has moved on, even if we are still on this code base:

  findHasMany: function(store, record, relationship, details) {
    if(relationship.key !== 'activities') {
      return;
    }

    var type = relationship.type,
        root = this.rootForType(type),
        url = this.url + details.url,
        self = this;

    this.ajax(url, "GET", {
      data: {page: 1}
    }).then(function(json) {
      var data = record.get('data'),
        ids = [],
        references = json[relationship.key];

      ids = references.map(function(ref){
        return ref.id;
      });

      data[relationship.key] = ids;

      record.set('data', data);

      self.didFindMany(store, type, json);
      record.suspendRelationshipObservers(function() {
        record.hasManyDidChange(relationship.key);
      });
    }).then(null, DS.rejectionHandler);
  },

I found replacing the data with the ids worked for me.