领域迁移未称为

我已经向领域对象添加了一个值（已向WeekReport对象添加了动态var inspectorName =“”），并且我试图迁移领域数据库以包含该值。我试图这样调用迁移块func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil)：

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    print("HERE")
    Realm.Configuration.defaultConfiguration = Realm.Configuration(
        schemaVersion: 1,
        migrationBlock: { migration, oldSchemaVersion in
            if (oldSchemaVersion < 1) {
                migration.enumerateObjects(ofType: WeekReport.className()) { oldObject, newObject in
                    newObject!["inspectorName"] = ""
                }
            }
    })

    return true
}

但是似乎didFinishLaunchingWithOptions在我的错误发生之前没有被调用。

在多视图控制器中，我有let realm = try! Realm()。在运行应用程序时，Xcode在这里中断：

“由于以下错误，需要迁移：-已添加属性'WeekReport.inspectorName'。” 由于以下错误，UserInfo = {NSLocalizedDescription = Migration是必需的：-已添加属性'WeekReport.inspectorName'。，错误代码= 10}：文件/Library/Caches/com.apple.xbs/Sources/swiftlang/swiftlang- 800.0.63 / src / swift /

为何不称为迁移blick？从未打印过“ HERE” ...

是否应该在视图控制器中以其他方式定义领域？