向核心数据中输入plist数据

Question

我目前有一个包含 27 个成就数据的 plist 文件，我正在尝试将其输入到核心数据实体中，如下所示

func createAchievements() {

    let A:Achievement = NSEntityDescription.insertNewObject(forEntityName: "Achievement", into: CoreDatabaseContoller.getContext()) as! Achievement

    let filePath = Bundle.main.path(forResource: "Achievement", ofType: "plist")
    let Items = NSArray(contentsOfFile: filePath!) as! [[String:AnyObject]]

        for item in Items {

            A.theName = item["Name"] as! String
            A.theDescription = item["Description"] as! String
            A.theImage = item["Image"] as! String
            A.aAmount = item["Amount"] as! NSNumber
            A.aNeededAmount = item["NeededAmount"] as! NSNumber                  //DOESN'T WORK IT ONLY SHOWS OR PUTS IN THE LAST ONE.
            A.aStage = item["Stage"] as! NSNumber
            A.aReward = item["Reward"] as! NSNumber
            A.aHasBeenAchieved = item["HasBeenAchieved"] as! NSNumber
            A.theSearchName = item["SearchName"] as! String

            CoreDatabaseContoller.saveContext()

        }
}

但是当我加载游戏和显示成就的游戏的成就菜单部分时，所有应该由核心数据填充的图像和文本都不存在并且图像是红色 X，除了最后一个成就菜单中的成就似乎工作正常，如下图所示

我最初是通过一个开关系统输入成就数据的，该系统在我的代码中看起来很糟糕，如下所示，但它没有问题。但是现在出于某种原因，当我尝试将它从 plist 输入到核心数据时，它似乎不起作用

func giveDataForAchievements() {

    if achievementsGenerated == false {

        for count in 1...24 {

            var aName = "None"
            var aDesc = "None"
            var aImage = "locked"
            var aAmount:NSNumber = 0
            var aNeededAmount:NSNumber = 1
            var aStage:NSNumber = 0
            var aReward:NSNumber = 0
            var aHasbeenAchieved:NSNumber = 0
            var aSearchName = ""

            switch count {

            case 1:

                aName = "DAILY"
                aDesc = "Daily Achievement"
                aImage = "locked"
                aAmount = 0
                aNeededAmount = 1
                aStage = 0
                aReward = 350
                aHasbeenAchieved = 0
                aSearchName = "Ach0"

            case 2:

                aName = "DAILY"
                aDesc = "Daily Achievement"
                aImage = "locked"
                aAmount = 0
                aNeededAmount = 1
                aStage = 0
                aReward = 350
                aHasbeenAchieved = 0
                aSearchName = "Ach1"

            case 3:

                aName = "DAILY"
                aDesc = "Daily Achievement"
                aImage = "locked"
                aAmount = 0
                aNeededAmount = 1
                aStage = 0
                aReward = 350
                aHasbeenAchieved = 0
                aSearchName = "Ach2"

            case 4:

                aName = "ROOKIE"
                aDesc = "Finish the tutorial level"
                aImage = "locked"
                aAmount = 0
                aNeededAmount = 1
                aStage = 2
                aReward = 350
                aHasbeenAchieved = 0
                aSearchName = "Ach3"


     createAchievements(aName: aName, Des: aDesc, Image: aImage, Amount: aAmount, Needed: aNeededAmount, Stage: aStage, Reward: aReward, BeenAchieved: aHasbeenAchieved, SearchName: aSearchName)

           // all the way to 27

我不知道如何解决这个问题。谁能告诉我我做错了什么？

Answer 1

您正在多次更新同一个托管对象。移动行：

let A:Achievement = NSEntityDescription.insertNewObject(forEntityName: "Achievement", into: CoreDatabaseContoller.getContext()) as! Achievement

进入for循环。然后它将为每个项目创建一个新对象。

向核心数据中输入plist数据

Entering plist data to core data

xcode

core-data

plist

ios

swift