backbone.js模型获取

Question

模型的奇怪行为。在点击事件中，我试图获取模型（它已经填充了集合，但我需要在点击时重新获取它）。一切顺利，它接收数据，但模型本身并没有改变，而是为属性设置新数据，它将新属性0作为对象添加，并存储所有新数据。

这是json收到的：

[{"body":"..","id":"4f24e353e599194e07000003","level":"ERROR","tag":"DED00","time":"2012-01-29 10:12:35","trace":"..."}]

当我做model.toJSON（）时，它返回

0 -> object (body = "new data", id, level, tag, time)
body = 'old data',
...

收集已用这个json填充：

[{"body":"...","id":"4f21ed41e599194107000000","level":"ERROR","time":"2012-01-27 04:18:09"},{"body":"...","id":"4f233613e599194607000001","level":"ERROR","time":"2012-01-28 03:41:07"}]

所以我试图向模型添加新属性，但它有默认值..

Answer 1

也许问题是你要为单个对象返回json数组

[{"body":"..","id":"4f24e353e599194e07000003","level":"ERROR","tag":"DED00","time":"2012-01-29 10:12:35","trace":"..."}]

而不是

{"body":"..","id":"4f24e353e599194e07000003","level":"ERROR","tag":"DED00","time":"2012-01-29 10:12:35","trace":"..."}

[]应该出来了。请检查它是否会像那样工作。