Transform for BelongsTo

Ember Data
1

I was wondering if it is possible to create a transform for belongsTo (and by extend hasMany) as my REST server returns relationships that are defined like this:

import DS from 'ember-data';

export default DS.Model.extend({
  lastname: DS.attr('string'),
  firstname: DS.attr('string'),
  company: DS.belongsTo('company'),
});

this way:

[
    {
        "firstname": "John",
        "lastname": "Doe",
        "company": {
            "uri": "<snip>/api/rest/company/5",
            "id": "5",
            "resource": "company"
        }
    }
]

while the default implementation for the RESTAdapter expects the server to respond like this:

[
    {
        "firstname": "John",
        "lastname": "Doe",
        "company": "5"
    }
]