Ember ActiveModelAdapter自定义 [英] Ember ActiveModelAdapter customization

问题描述

我的Ember应用程序与API（通过DS.ActiveModelAdapter适配器）进行交互，该适配器响应 GET/api/v1/users?username=mcclure.rocio与一个JSON如下：

My Ember application interacts with an API (through a DS.ActiveModelAdapter adapter) which respond to GET "/api/v1/users?username=mcclure.rocio" with a JSON like:

{
  "user": {
    "id": 5,
    "name": "Rocio McClure",
    "username": "mcclure.rocio",
    "email": "[e-mail]"
  }
}

我的路由器是：

Router.map(function() {
  this.route("login");
  this.route("user", {path: "user/:username"}, function() {
    this.route("profile");
  });
});

所以我有路由像 http：// localhost：4200 / user / mcclure.rocio 这是用户的一种总结。

So I have route like http://localhost:4200/user/mcclure.rocio which is kind of summary of a user.

问题是在路由中加载正确的模型：

The problem is loading the correct model in the route:

export default Ember.Route.extend(AuthenticatedRouteMixin, {
  model: function(params) {
    return this.store.find('user', { username: params.username })
  }
});

我的Ember检查员指出，加载的模型是一个空的 DS.AdapterPopulatedRecordArray 。那是因为findQuery（实际上被调用为我提供查询对象）期望获取JSON数组，而我的API返回一个单一的用户 JSON对象，所以它将其转换为一个空数组。

My Ember inspector states that the loaded model is an empty DS.AdapterPopulatedRecordArray. That's because findQuery (which is actually called as I provide a query object) expect to fetch a JSON array while my API return a single user JSON object, so it translates it to an empty array.

然而 this.store.find（'user'，{username：params.username}）建立正确的请求我的API，但是如何使商店接受API响应并将其作为我的路线的模型？

However this.store.find('user', { username: params.username }) build the right request to my API but how can I make the Store accept the API response and serve it as model to my route?

注意：
如果我的API返回数组a可以这样做：

note: If my API returned an array a could do something like this:

export default Ember.Route.extend(AuthenticatedRouteMixin, {
  model: function(params) {
    return this.store.find('user', { username: params.username }).then(function(data){
      return data.objectAtContent(0);
    });
  }
});

但是，我不想修改它。

but, I prefer not to modify it.

推荐答案

您应该使用 normalizePayload 功能，DS.RestSerializer修改对Ember Data所期待的格式的响应。

You should make use of the normalizePayload function on DS.RestSerializer to modify the response to the format Ember Data expects.

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