Question

如何使用ember-data进行此操作？

{"poll":{"id":1,"question":"lym features",
    "choices":[{"id":1,"text":"Improve AI", "PollId":1},
               {"id":2,"text":"Multiplayer","PollId":1},
               {"id":3,"text":"Modern Art","PollId":1}]}}

这是我服务器的json响应。我需要使用ember数据RESTAdapter来解析它。

Answer 1

我必须覆盖extractSingle中的DS.RESTSerializer方法。有关详细信息，请参阅代码中的emberjs链接。

// http://stackoverflow.com/questions/14320925/how-to-make-embedded-hasmany-relationships-work-with-ember-data
// http://emberjs.com/api/data/classes/DS.RESTSerializer.html#method_extractSingle
App.PollSerializer = DS.RESTSerializer.extend({
    extractSingle: function(store, type, payload, id) {
        var poll = payload.poll;
        var choices = poll.choices;
        delete poll.choices;

        poll.choices = [];

        choices.forEach(function(c) {
            poll.choices.push(c.id);
        });

        payload = { choices: choices, poll: payload.poll };
        return this._super(store, type, payload, id);
    }
});

这会将我原来的结构变成标准形式。

注意：愚昧无知的傻瓜，有一种更简单的方法可以做到这一点，我是否有某种陷阱，请自我解释。

Answer 2

您可以使用EmberData EmbeddedRecordsMixin http://emberjs.com/api/data/classes/DS.EmbeddedRecordsMixin.html并设置choices。

Ember数据RestAdapter嵌入了hasMany

2 个答案: