我如何查看在Tastypie JSON骨干收集要素？ [英] How I acces to Backbone collection elements from Tastypie JSON?

问题描述

我已经写有Tastypie，Django的一个API和我想做的使用骨干做的更简单地进入到模型的网页。我创建了一个骨干模型和集合是这样的：

I've write a API with Tastypie-Django and I want to do a webpage using Backbone to do more simply access to model. I've created a Model and a collection like this in Backbone:

var Abstract =  Backbone.Model.extend({
    defaults : {
   }
});

var AbstractCollection = Backbone.Collection.extend({
   model: Abstract,
   url : "http://192.168.0.195/api/v1/abstract/?format=json"
});

该fetch方法是在视图威腾是这样的：

The fetch method it's witten in the View and it's like this:

var abs = new PocketsAbstractCollection();
abs.fetch({
     success: function (collection, response) {
         console.log(abs.length);
         console.log(abs.models);
      }
 });

问题是，我收到一个JSON从这种形式：

The problem it's that I receive a JSON from this form:

  {"meta": {"limit": 20, "next": null, "offset": 0, "previous": null, "total_count": 12}, "objects": [{ ... }]}

，当我看到在属性集合的模式，我有2个元素，元和元素的对象数组。我怎样才能访问对象元素的数组？

and when I see the model of the collection in attributes I have 2 elements, a Meta and a Objects Array with the elements. How can I access to the Array of Objects elements?

如果我写这abs.attributes给我一个错误。

If I write abs.attributes this give me an error.

attributes: Object
  meta: Object
  objects: Array[12]
    0: Object
    1: Object
    2: Object
    3: Object
    4: Object
    .
    .
    .
   length: 12

有人能帮助我吗？

Can someone help me?

谢谢！

推荐答案

骨干期望接收对象的数组。

Backbone expects to receive an array of objects.

Tastypie返回下的对象属性的对象的数组。

Tastypie returns the array of objects under the "objects" property.

操纵API响应为骨干想要的格式的推荐方法是通过收集的 解析功能：

The recommended way of manipulating API responses into the format Backbone wants is through the collection's parse function:

var AbstractCollection = Backbone.Collection.extend({
   model: Abstract,

   url : "http://192.168.0.195/api/v1/abstract/?format=json",

   parse: function(response) {
      return response.objects;
   }
});

您也可以使用骨干-Tastypie'插件'：<一href=\"https://github.com/PaulUithol/backbone-tastypie\">https://github.com/PaulUithol/backbone-tastypie

You could also use Backbone-Tastypie 'plugin': https://github.com/PaulUithol/backbone-tastypie

这篇关于我如何查看在Tastypie JSON骨干收集要素？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！