如何获取客户端上的 MongoDB 领域上次同步的日期时间？

Question

MongoDB Realm在后台同步数据，如何获取realm上次同步的日期时间？想要向用户显示此信息以指示数据是最新的。

有一个 RLMSyncManager class 但它似乎不包含有关上次同步的任何信息，https://docs.mongodb.com/realm-sdks/objc/latest/Classes/RLMSyncManager.html

Answer 1

Realm SyncSession 对象有一个 addProgressNotification 方法 https://github.com/realm/realm-cocoa/blob/b606bfddaa0856489561727207e755659faa9a7e/RealmSwift/Sync.swift#L557 因此可以在其中添加回调以更新本地日期属性以存储最后同步的领域更新时间.

Realm 用户对象包含可通过 user.allSessions 访问的活动会话列表，替代方法是 realm.syncSession。

        let realm = realmProvider.realm

        let progressTokenDownload = realm.syncSession?.addProgressNotification(
            for: .download,
            mode: .forCurrentlyOutstandingWork
        ) { progress in
            print(">>> DEBUG: [DCSettingsViewModel:checkRealmSyncingStatus] download", progress.fractionTransferred)
        }

        let progressTokenUpdate = realm.syncSession?.addProgressNotification(
            for: .upload,
            mode: .forCurrentlyOutstandingWork
        ) { progress in
            print(">>> DEBUG: [DCSettingsViewModel:checkRealmSyncingStatus] upload  ", progress.fractionTransferred)
        }

        if let progressTokenUpdate = progressTokenUpdate, let progressTokenDownload = progressTokenDownload {
            progressNotificationTokens.append(progressTokenUpdate)
            progressNotificationTokens.append(progressTokenDownload)
        }

如何获取客户端上的 MongoDB 领域上次同步的日期时间？

How to get the date time the MongoDB Realm on client last synced?

realm

ios

swift

mongodb-realm