如何更新余烬数据中的关系

Question

I have the following two models:

App.Domain = DS.Model.extend({
    name: attr('string'),
    users: DS.hasMany('App.User')
});
App.User = DS.Model.extend({
    user: attr('string'),
    domain: DS.belongsTo('App.Domain')
});

The Domain is loaded in the User record embeded:

DS.RESTAdapter.map('App.User', {
    domain: { embedded: 'load' }
});

If I get the JSON data, ember-data will interpret that correctly.

GET /users

{
    "users": [
        {
            "id": 1,
            "domain_id": 1,
            "user": "test",
            "domain": {
                "id": 1,
                "name": "example.com"
            }
        }
    ]
}

My domains looks like this:

GET /domains

{
    "domains": [
        {
            "id": 1,
            "name": "example.com"
        },
        {
            "id": 2,
            "name": "example.org"
        }
    ]
}

Now my question:

If I update the domain in a user record the domain_id foreignKey will not be updated. If I try to commit this dirty record, ember will sending the old domain_id to the server. What is wrong in my code? Can I not update the belongsTo field for updating the foreignKey in this way?

>>var user = App.User.find(1);
>>user.get('domain.id')
1
>>var newDomain = App.Domain.find(2);
>>newDomain.get('id')
2
>>user.set('domain', newDomain)
>>user.get('isDirty')
true
>>user.get('domain.id')
2
>>user.get('domain_id')
1

Answer 1

我认为您需要首先提交，以更新domain_id。