如何使用DS.Store.registerAdapter [英] How to use DS.Store.registerAdapter

问题描述

我尝试使用ember-data的每种类型的适配器功能。不知道我是否做错了，或者是否是垃圾数据中的错误。基本上我以为会这样工作：

I try to use the 'adapter per type' feature of ember-data. Not sure whether I'm doing something wrong or if it's a bug in ember-data. Basically i thought it would work like this:

Person = DS.Model.extend({
  name: DS.attr('string')
});
var personAdapter = DS.Adapter.create();
DS.Store.registerAdapter(Person, personAdapter );

商店始终使用默认适配器，而不是注册的每种类型的适配器
我写了一个测试用例来显示我的意思：

The store always uses the the default adapter and not the registered 'per type adapter' I wrote a test case to show what I mean:

var get = Ember.get, set = Ember.set;
var Person, store, adapter, personAdapter;

module("DS.Store and DS.Adapter 'adapter per type' integration test", {
  setup: function() {
    Person = DS.Model.extend({
      name: DS.attr('string')
  });

  adapter = DS.Adapter.create();
  personAdapter = DS.Adapter.create();

  DS.Store.registerAdapter(Person, personAdapter);
    store = DS.Store.create({ adapter: adapter });
  },

  teardown: function() {
    adapter.destroy();
    store.destroy();
  }
});


test("test function on the per type adapter", function() {

  adapter.find = function(store, type, id) {
    ok(false, "should call find on the registered 'per type adapter' not on the default one");
  };

  personAdapter.find = function(store, type, id) {
    store.load(Person, {
      'id': 1,
      'name': "My Name"
    });
  };

  var person = store.find(Person, 1);
  equal(person.get('name'), "My Name");
});

调试时我注意到，DS.Mappable._reifyMapping混合显式检查DS.Store和如果this是DS.Store，则停止。

While debugging I noticed that the "DS.Mappable._reifyMapping" mixing explicitly checks for DS.Store and stops if the "this" is a DS.Store.

推荐答案

这应该可以。

var get = Ember.get, set = Ember.set;
var Person, StoreClass, store, adapter, personAdapter;

module("DS.Store and DS.Adapter 'adapter per type' integration test", {
  setup: function() {
    Person = DS.Model.extend({
      name: DS.attr('string')
    });

    adapter = DS.Adapter.create();
    personAdapter = DS.Adapter.create();

    StoreClass = DS.Store;
    StoreClass.registerAdapter(Person, personAdapter);
    store = StoreClass.create({ adapter: adapter });
  },

  teardown: function() {
    adapter.destroy();
    store.destroy();
  }
});

...

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