ios - Realm 模型包含属性但在运行时未找到它

Question

出现如下错误

Invalid property name , reason: 'Property 'IsRecordDeleted' not found in object of type 'MyCustomModel'

我的模型在下面

@objcMembers public class MyCustomModel : Object {
dynamic var   Id : String = ""
dynamic var   ProductId : String? = ""
dynamic var   IsRecordDeleted : Bool? = false
dynamic var   ProductBarcode : String? = ""


override public class func primaryKey() -> String? {
    return "Id"
}

我正在这样查询:

let mSavedItems = mDbHelper.realmObj.objects(MyCustomModel.self).filter("IsRecordDeleted = false")

这里可能有什么问题。我不知道为什么我的应用程序会因同样的错误而崩溃。但是如果我像

这样改变值

    let mSavedItems = mDbHelper.realmObj.objects(MyCustomModel.self).filter("ProductId = 0")

应用程序开始运行，但当我在谓词中使用 IsRecordDeleted 时崩溃了。

请告诉我可能是什么问题

Answer 1

你可以试试

let mSavedItems = mDbHelper.realmObj.objects(MyCustomModel.self)
let filtered = mSavedItems.filter { $0.IsRecordDeleted == false }

和

let mSavedItems = mDbHelper.realmObj.objects(MyCustomModel.self) 
let filtered = mSavedItems.filter { $0.ProductId == "0" }

两者皆有

let mSavedItems = mDbHelper.realmObj.objects(MyCustomModel.self) 
let filtered = mSavedItems.filter {
   $0.IsRecordDeleted == false 
   && $0.ProductId == "0" 
}

//

let resultPredicate = NSPredicate(format: "ProductId == '0' AND IsRecordDeleted == false")
let filtered = mSavedItems.filter(resultPredicate)