如何从返回根参数以及数组JSON API调用创建骨干集合 [英] How to create Backbone Collection from a JSON API call that returns root parameters as well as array

问题描述

Backbone.js的小白在这里。

Backbone.js noob here.

我要创建一个集合，从JSON API外部的我的应用程序。具体来说，从 ＃1的API。我知道我应该从集合设置URL参数是这样的：

I want to create a collection, from a JSON API external to my application. Specifically, the api from Stackoverflow. I know I should set the url parameter from a collection like this:

App.Collections.Users = Backbone.Collection.extend({
    model: User,
    url: "http://api.stackoverflow.com/1.1/users/800271;562692?jsonp=?&key=blahblah"
});

问题是，JSON API返回是这样的：

The problem is that the JSON API returns something like:

{
 "total": 2,
 "users": [
  {
   "user_id": 800271,
  },
  {
   "user_id": 800272,
  }
 ]
}
}

如何忽略了总的属性？

How do I ignore the "total" attribute?

推荐答案

如果这是你的应用程序的唯一集合，这种API的工作，所有你需要做的就是重写解析它的方法：

If this is the only collection in your app to work with such api, all you have to do is to override parse method for it:

App.Collections.Users = Backbone.Collection.extend({
    // ...
    parse: function(resp, xhr) {
        return resp.users
    }
})

如果你也有保存您的模型，也许你会需要重写 Backbone.sync 。不要犹豫，请参阅骨干源：这是彻底的注释，易于遵循

If you also have to save your models, maybe you will need to override Backbone.sync. Don't hesitate to read backbone's source: it's thoroughly annotated and easy to follow.

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