Question

我有一个Ajax函数从视图中获取Django对象。

我想在jQuery中访问该对象的所有属性，但我无法这样做。

$.ajax(
{
    url: domain+'/game/android/',                                               
    type:"POST",
    success:function(response){
        response = jQuery.parseJSON(response);                          
        localStorage['userCard'] = response.user_cards_held;
        localStorage['compCard'] = response.comp_cards_held;
        localStorage['game'] = response.game;                               
        alert(response.user_cards_held);// **this shows all the fields. **
        alert(response.user_cards_held.fields);//This does not work. Gives the value as undefined
        window.location = 'file:///android_asset/www/game.html';                        
    },
    error:function(xhr, status, error){
        var err = eval("(" + xhr.responseText + ")");
        alert(err.Message);     

    },

});

查看是这样的：

    from django.core import serializers
...
json = serializers.serialize('json', objectlists)
return HttpResponse(json, mimetype="application/json")

对象是这样的：

[{ "model" : "object.list", "pk" : 1, "fields" : { "name" : "...", ... } }]

我检查了这个问题：Question Referenced 这不起作用。我做错了什么？

编辑：

为了正确获得该字段，我在成功函数中进行了以下更改 -

success:function(response){
        response = jQuery.parseJSON(response);                          
        localStorage['userCard'] =jQuery.parseJSON(response.user_cards_held);
        localStorage['compCard'] = jQuery.parseJSON(response.comp_cards_held);
        localStorage['game'] = jQuery.parseJSON(response.game);                               
        alert(jQuery.parseJSON((response.user_cards_held));// **this shows all the fields. **
        alert(jQuery.parseJSON(response.user_cards_held.fields));//This does not work. Gives the value as undefined
        window.location = 'file:///android_asset/www/game.html';                        
    }

Answer 1

您的response.user_cards_held是一个数组对象 -

>> [{ "model" : "object.list", "pk" : 1, "fields" : { "name" : "...", ... } }]
// ^----- Array

所以当然response.user_cards_held.fields是未定义的。您的实际对象位于response.user_cards_held[0]，因此您可以访问fields等response.user_cards_held[0].fields属性。

Answer 2

[{ "model" : "object.list", "pk" : 1, "fields" : { "name" : "José", ... } }]

// convert JSON string to JSON Object:<br>
var data = $.parseJSON(response);<br>
// acess name atribute<br>
**data[0].fields.name**;

如何在jQuery中访问Django对象

2 个答案: