Question

当我实际上是console.log（this.collection.fetch（））时，您可以在responceJSON和responseText中看到它从api返回了正确的数据。

但是，我的readyState始终保持为1，当我运行时

this.collection.fetch({
    success : function() {
         console.log(that.collection.toJSON())
    }
});

它返回一个空白数组，即使我们没有服务器响应数据。

这是我的代码......

模型

define(['backbone'], function(backbone){

    var google_place = Backbone.Model.extend({

        defaults : {
            'title'     : 'no titile',
            'sub_title' : 'no subtitle',
            'content'   : 'no content available',
            'lat'       :  0,
            'lng'       :  0,
            'text'      : 'no text'
        }

    });

    return google_place;


});

define(['../model/google_place'], function(google_place){

    var google_places = Backbone.Collection.extend({

        model: google_places,

        initialize: function(models, options) {

        },

        url: function() {
            return "http://globallcoach-app.dev/api/";
        },

        parse: function(data) {
            return data.items;
        },

    });

    return google_places;

});

查看

define(includes(), function(backbone, mustache){

    var index = Backbone.View.extend({

        initialize : function() {
            this.template = mustache.render(nav);
        },

        render : function() {
            var that = this;
            console.log(that.collection.fetch());
            this.collection.fetch({
                success : function() {
                    console.log(that.collection.toJSON())
                },

            });

            return;
        },

    });

    return index;

});

来自fetch（responseText）的JSON响应

[{
    "title": "no titile",
    "sub_title": "no subtitle",
    "content": "no content available",
    "lat": "0",
    "lng": "0",
    "text": "no text"
}, {
    "title": "Example Title",
    "sub_title": "Example Subtitle",
    "content": "Loads on content here",
    "lat": "0",
    "lng": "0",
    "text": "random text bullshit"
}]

Answer 1

您的集合parse方法包含以下内容：

parse: function(data) {
   return data.items;
},

但响应没有items属性：

[{
  "title": "no titile",
  "sub_title": "no subtitle",
  "content": "no content available",
  "lat": "0",
  "lng": "0",
  "text": "no text"
 }, {
  "title": "Example Title",
  "sub_title": "Example Subtitle",
  "content": "Loads on content here",
  "lat": "0",
  "lng": "0",
  "text": "random text bullshit"
}]

因此parse返回undefined，collection.toJSON()返回空数组

您应该删除parse方法，否则您的回复应为

{
  "items":     [{
    "title": "no titile",
    "sub_title": "no subtitle",
    "content": "no content available",
    "lat": "0",
    "lng": "0",
    "text": "no text"
   }, {
    "title": "Example Title",
    "sub_title": "Example Subtitle",
    "content": "Loads on content here",
    "lat": "0",
    "lng": "0",
    "text": "random text bullshit"
  }]
}

此外，您的收藏集似乎并未导入backbone。确保它可以访问Backbone并且不会抛出任何错误

Answer 2

删除解析功能。 JSON已经是一个google_places数组。

使用Rest的骨干收集工作不正常

2 个答案: