如何使用javascript更新parse.com中的当前对象？

I want to update object i already have in parse.com with javascript; what i did is i retirevied the object first with query but i dont know how to update it.

我想用javascript更新我在parse.com中已有的对象;我做的是我首先用查询退回对象，但我不知道如何更新它。

here is the code i use, whats wrong on it?

这是我使用的代码，它有什么不对吗？

var GameScore = Parse.Object.extend("Driver");
var query = new Parse.Query(GameScore);
query.equalTo("DriverID", "9");
query.find({
  success: function(results) {

    alert("Successfully retrieved " + results.length + "DName");

     results.set("DName", "aaaa");
    results.save();
  },
  error: function(error) {
    alert("Error: " + error.code + " " + error.message);
  }
});

3 个解决方案

#1

The difference between the question and your answer may not be obvious at first- So for everyone who has happened here- Use query.first instead of query.find.

问题和你的答案之间的区别可能一开始并不明显 - 所以对于发生在这里的每个人 - 使用query.first而不是query.find。

query.find()  //don't use this if you are going to try and update an object

returns an array of objects, an array which has no method "set" or "save".

返回一个对象数组，一个没有方法“set”或“save”的数组。

query.first() //use this instead

returns a single backbone style object which has those methods available.

返回一个具有这些方法的骨干样式对象。

#2

I found the solution, incase someone needs it later

我找到了解决方案，以后有人需要它

here it is:

这里是：

var GameScore = Parse.Object.extend("Driver");
var query = new Parse.Query(GameScore);
query.equalTo("DriverID", "9");
query.first({
  success: function(object) {

     object.set("DName", "aaaa");
    object.save();


  },
  error: function(error) {
    alert("Error: " + error.code + " " + error.message);
  }
});

#3

If someone got msg "{"code":101,"error":"object not found for update"}", check the class permission and ACL of Object to enrure it's allowed to read and write

如果有人得到msg“{”代码“：101，”错误“：”找不到更新的对象“}”，请检查对象的类权限和ACL，以确保允许读取和写入

#1