如何让Ember-Data RESTAdapter发送“hasMany”记录到服务器 [英] how to get Ember-Data RESTAdapter to send "hasMany" records to server

问题描述

我使用的是Ember-Data beta 3.我的Ds.models类似于以下内容：

I'm using Ember-Data beta 3. My Ds.models are similar to the following:

App.Item = DS.Model.extend({
  itemName: DS.attr('string'),
  strategy: DS.belongsTo('strat')
});

App.Strat = DS.Model.extend({
    stratName: DS.attr('string'),
    items: DS.hasMany('item',{async:true})
});

使用Ember-data的RESTAdapter，我可以使用我的服务器中的数据填充模型。但是当我尝试将数据保留回服务器时，没有发送App.Item记录。我的服务器收到的JSON只包含stratName。我使用this.get（'model'）。save（）来触发发送。

Using Ember-data's RESTAdapter, I'm able to populate the model using data from my server. But when I tried to persist data back to the server, none of the "App.Item" records got sent. The JSON received by my server only contained "stratName." I used "this.get('model').save()" to trigger the send.

我做错了什么？

推荐答案

有没有原因，您在使用模型之间的异步关系？

Is there a reason why you are using an async relationship between your models?

他们作为{embedded：always}，您可以轻松地覆盖serializeHasMany函数以包含所有相关的模型信息

If you set them as {embedded: always}, you can easily override the serializeHasMany function to include all of your related model information

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);
    }
},

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