具有嵌入ID和侧面加载的Ember-Data和Active Model Serializer的has_many配置 [英] has_many configuration for Ember-Data and Active Model Serializers with embedded IDs and sideloading

问题描述

我知道Ember-Data应该是按照设计与Active Model Serializers兼容的，但是它们似乎不符合序列化嵌入式ID的 has_many 关系。

例如，序列化器

  class PostSerializer< ActiveModel :: Serializer 
 embed：ids 
 has_many：comments 
 end 
  

生成JSON

  {
post：{
comment_ids：[.. 。] 
} 
} 
  

但是Ember Data中的默认配置

  App.Post = DS.Model.extend（{
 DS.hasMany（'App.Comment'），
}）; 
 
 App.Comment = DS.Model.extend（）; 
  

期望评论关联序列化为评论：[...] 没有 _ids 后缀（请参阅 Ember.js指南的REST适配器部分的关系子部分）。

我尝试过以下工作 -

  class PostSerializer< ActiveModel :: Serializer 
属性：comment 
 def comments 
 object.comment_ids 
 end 
 end 
  

它有效，但添加 embed：ids，：include =>因为AMS不知道它是一个关联，所以为了启用侧面加载，真正的将不起作用。

编辑：我正在使用 active_model_serializers（0.6.0） gem和Ember-Data revision 11

解决方案

对于ember-data 1.0.0-beta.3，我最终使用这个：

  App.ApplicationSerializer = DS.ActiveModelSerializer。延伸（{}）; 
  

如下所述：过渡指南

非常好地工作！ / p>

I know that Ember-Data is supposed to be compatible with Active Model Serializers by design, but they seem to be out of step on serializing has_many relationships with embedded IDs.

For example, the serializer

class PostSerializer < ActiveModel::Serializer
  embed :ids
  has_many :comments
end

produces the JSON

{
    "post": {
        "comment_ids": [...]
    }
}

But the default configuration in Ember Data,

App.Post = DS.Model.extend({
  DS.hasMany('App.Comment'),
});

App.Comment = DS.Model.extend();

expects the comments association to be serialized as comments: [...] without the _ids suffix (see the relationships sub-section of the REST adapter section of the Ember.js guide).

I tried the following as a work-around:

class PostSerializer < ActiveModel::Serializer
  attribute :comments
  def comments
    object.comment_ids
  end
end

It works, but adding embed :ids, :include => true in order to enable side-loading now does nothing since AMS doesn't know that it's an association.

Edit: I am using the active_model_serializers (0.6.0) gem and Ember-Data revision 11

解决方案

For ember-data 1.0.0-beta.3 I ended up using this:

App.ApplicationSerializer = DS.ActiveModelSerializer.extend({});

As explained here: Transition Guide

Works very nicely!

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