ios - 在同步 Realm 上运行迁移

Question

我创建了一个新的对象模型，当我打开我的应用程序时，出现以下错误:

*** Terminating app due to uncaught exception 'RLMException', reason: 'Invalid class subset list:
- 'Mod.generalSettings' links to class 'Setting', which is missing from the list of classes managed by the Realm
- 'Mod.contextSettings' links to class 'Setting', which is missing from the list of classes managed by the Realm
- 'Mod.accountSettings' links to class 'Setting', which is missing from the list of classes managed by the Realm'

当我关闭保存同步 Realm 的 Realm 对象服务器时，我没有收到此错误。这是启动时运行的配置:

Realm.Configuration.defaultConfiguration = Realm.Configuration(
        syncConfiguration: (user, syncServerURL!),
        objectTypes: [Dot.self, Mod.self, Setting.self])

这让我相信我需要为我的远程 Realm 运行迁移。我怎样才能做到这一点？

Answer 1

您无法从客户端直接访问服务器上的 Realm 文件。您所需要做的就是在本地运行迁移，更改将被推送到服务器。

如果您不删除任何列，则可以运行迁移，如下所示:

Realm.Configuration.defaultConfiguration = Realm.Configuration(
        syncConfiguration: (user, syncServerURL!),
        schemaVersion: 1,
        migrationBlock: { migration, oldSchemaVersion in },
        objectTypes: [Dot.self, Mod.self, Setting.self])

希望对您有所帮助!