Ember.js 保存嵌套模型

我有两个这样的模型：

App.Build = DS.Model.extend({
    allegiance: DS.attr('string'),
    profession: DS.attr('string'),
        skills: DS.hasMany('skill')
});

App.Skill = DS.Model.extend({
    name:DS.attr('string'),
    value:DS.attr('number')
});

App.BuildSerializer = DS.RESTSerializer.extend({
     serializeHasMany: function(record, json, relationship) {
         if(relationship.key === 'skills') {
            var skills = record.get('skills');
            var block = [];

            skills.forEach(function(skill, index) {
                var current = {};
                current.id = skill.get('id');
                current.value = skill.get('value')
                block[index] = current;
            });

            json['skills'] = block;

         } else {
             return this._super(record,json,relationship);
         }
     }
});

App.BuildSerializer = DS.RESTSerializer.extend(DS.EmbeddedRecordsMixin,{
    attrs: {
        skills: 'records'
    }
});

在我的应用程序中，我有设置每项技能的效忠、职业和价值观的控件（最多55项）

然后在我的应用程序控制器的actions散列中，我有一个将构建模型保存到服务器的操作

save:function(){
     var store = this.get('store');
     var skills = this.get('controllers.skills').get('model');
     console.log(skills);
     var build = store.createRecord('build',{
          profession:1,
          allegiance:1,
          skills:skills
      });

      build.set('skills',skills);
      build.save();

      console.log('Saved!');
}

但是，当生成模型发送到服务器时，skills属性是一个空数组：

{"build":{"allegiance":"1","profession":"1","skills":[]}}

我肯定我做错了什么，但我不知道是什么，也找不到任何关于它的好文档。另外，我只关心提交的技能id和值

任何帮助都将不胜感激

更新：

根据Daniel的建议，我编辑了save函数，使用pushObjects将技能放入构建模型中，然后保存它。现在情况好多了。现在生成的post数据如下所示：

{"build":{
    "allegiance":1,
     "profession":1,
          "skills":["1","2","3","4","5","6","7","8","9","10","11","12","13","14","15","16","17","18","19","20","21","22","23","24","25","26","27","28","29","30","31","32","33","34","35","36","37","38","39","40","41","42","43","44","45","46","47","48","49","50","51","52","53","54","55"]}}

这是一个技能ID列表。其他属性都不会在帖子中提交。我尝试过迭代技能，创建一个新的对象，然后输入id和值，这是我唯一需要的部分，但这给了我一个错误。比如，不能使用未定义的，必须是类型技能

这似乎是灰烬数据应该本机处理的事情。在请求中发送其他技能属性时，我是否缺少一些东西

---

谢谢

技能模型是记录阵列吗？这就是Ember数据使用的基础模型。您可以尝试创建记录，然后在事后使用pushObjects

  var build = store.createRecord('build',{
      profession:1,
      allegiance:1
  });

  build.get('skills').pushObjects(skills);

此外，save会返回一个承诺，因此为了正确处理成功的save与失败的save，您可以这样处理它

 build.save().then(
    function(){
     console.log('Saved!');
    },
    function(){
     console.log('Failed to save');
    });

---

如果其他人感兴趣，我通过为

Build

模型使用自定义serliazer覆盖serlizer解决了这个问题，如下所示：

App.Build = DS.Model.extend({
    allegiance: DS.attr('string'),
    profession: DS.attr('string'),
        skills: DS.hasMany('skill')
});

App.Skill = DS.Model.extend({
    name:DS.attr('string'),
    value:DS.attr('number')
});

App.BuildSerializer = DS.RESTSerializer.extend({
     serializeHasMany: function(record, json, relationship) {
         if(relationship.key === 'skills') {
            var skills = record.get('skills');
            var block = [];

            skills.forEach(function(skill, index) {
                var current = {};
                current.id = skill.get('id');
                current.value = skill.get('value')
                block[index] = current;
            });

            json['skills'] = block;

         } else {
             return this._super(record,json,relationship);
         }
     }
});

App.BuildSerializer = DS.RESTSerializer.extend(DS.EmbeddedRecordsMixin,{
    attrs: {
        skills: 'records'
    }
});

更新：

现在，有一种更简单的方法可以通过如下方式实现：

App.Build = DS.Model.extend({
    allegiance: DS.attr('string'),
    profession: DS.attr('string'),
        skills: DS.hasMany('skill')
});

App.Skill = DS.Model.extend({
    name:DS.attr('string'),
    value:DS.attr('number')
});

App.BuildSerializer = DS.RESTSerializer.extend({
     serializeHasMany: function(record, json, relationship) {
         if(relationship.key === 'skills') {
            var skills = record.get('skills');
            var block = [];

            skills.forEach(function(skill, index) {
                var current = {};
                current.id = skill.get('id');
                current.value = skill.get('value')
                block[index] = current;
            });

            json['skills'] = block;

         } else {
             return this._super(record,json,relationship);
         }
     }
});

App.BuildSerializer = DS.RESTSerializer.extend(DS.EmbeddedRecordsMixin,{
    attrs: {
        skills: 'records'
    }
});

---

不，那似乎不起作用。我犯了一个错误。我认为技能是一种承诺。它是从

/skills

加载的。你能重复一下skills吗？forEach（函数（sk）{console.log（sk）；}）；是的，我应该能够迭代它。我只是不知道那时候该怎么办。这是我在状态为root.deleted.saved时尝试处理事件

didSetProperty

时遇到的错误。调用时使用{name:allegiance，oldValue:undefined，originalValue:undefined，value:undefined}。skllls是否为null/undefined？console.log（build.get（'skills'））不，它不是null/未定义。这是一个承诺数组，现在有一个更好的方法。使用，只需几行代码即可在中添加关联的记录。