backbone.js model fetch

Question

模型的奇怪行爲。在點擊事件中，我試圖獲取模型（它已經被集合到了集合中，但是我需要在點擊時重新獲取它）。一切都很好，它接收數據，但模型本身不會改變，而是爲屬性設置新的數據，它將新的屬性0添加爲對象，並在那裏存儲所有新數據。

這是JSON接收：

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

當我做model.toJSON（）返回

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

集合已被填充了這個JSON：

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

所以我試圖給模型添加新的屬性，但它有默認值..

Answer 1

也許問題是，你是單對象返回JSON數組

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

代替

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

[]應該出。請檢查它是否會像那樣工作。