我正在使用Kinvey作为后端开发应用程序。我有一个对象数组Questions
,需要存储在由Qnumber
,Qanswer1
和Qanswer2
属性组成的数据库中。我的问题是,当我尝试将此问题数组保存在数据库中时,它总是将数组中的最后一个对象保存n次。
假设我将这些数据存储在数组中:
Questions[0].Qnumber = 1
Questions[0].Qanswer1 = "a1"
Questions[0].Qanswer2 = "b1"
Questions[1].Qnumber = 2
Questions[1].Qanswer1 = "a2"
Questions[1].Qanswer2 = "b2"
Questions[2].Qnumber = 3
Questions[2].Qanswer1 = "a3"
Questions[2].Qanswer2 = "b3"
当我使用循环将这些对象保存在后端并检查数据库时,我得到:
Qnumber:3,3,3
Qanswer1:a3,a3,a3
Qanswer2:b3,b3,b3
我花了2天的时间来解决这个问题,但是我做不到
这是我的代码:
@IBAction func saveButton(sender: AnyObject) {
let i = Int(numberOfQuestions)
var newQ : Questions = Questions()
for var index = 0; index < i; ++index {
newQ.Qnumber = String(index + 1)
newQ.Qanswer1 = cellAnswer1[index]
newQ.Qanswer2 = cellAnswer2[index]
saveObject(newQ)
}
}
func saveObject (newQuestion: Questions){
let store = KCSAppdataStore.storeWithOptions([
KCSStoreKeyCollectionName : "Questions",
KCSStoreKeyCollectionTemplateClass : Questions.self
])
store.saveObject(
newQuestion,
withCompletionBlock: { (objectsOrNil: [AnyObject]!, errorOrNil: NSError!) -> Void in
if errorOrNil != nil {
NSLog("an error happened: %@", errorOrNil)
} else {
//save was successful
NSLog("A new question is saved sucessfully")
}
},
withProgressBlock: nil
)
}
最佳答案
我认为您应该尝试将new的首字母放入for循环中
关于ios - 使用Swift将数据存储在后端,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/35395528/