无效的UPDATE通知的替代方法 [英] Alternatives to UPDATE notification that does not work

问题描述

UPDATE通知停止工作.在苹果弄清楚某些东西之前，您有什么解决方法?

UPDATE notification stopped working. What workaround do you have, until Apple figures out something?

CKFetchNotificationChangesOperation有时不返回UPDATE，DELETE通知 有关记录更新的CloudKit推送通知已停止工作 https://forums.developer.apple.com/thread/7288

我的快速解决方案，即每分钟，当用户触发UIRefreshControl时，我将下载自上次更新以来已修改的所有记录.有用.但是我心里有一个更好的主意，很好奇，您怎么看.任何弊端.

My quick fix, that in every minute, and when user triggers UIRefreshControl, then I downloading all the records that were modified since the last update. It works. But I have a better idea in my mind, curious, what do you think. Any drawbacks.

我正在考虑将Change表添加到数据库中.它将具有一个recordName，recordType，changeType字段. changeType可以具有insert，update，delete字符串值. (或相应的int枚举)

I am thinking adding a Change table to the database. It will have a recordName, recordType, changeType fields. changeType could have insert, update, delete string values. (or int enumerations accordingly)

然后我将仅使用Change表创建并使用CKSubscription进行观察.总是在自定义表中创建，更新或删除记录时，我会做两件事，执行该操作，然后作为第二项操作，我将在Change表中输入一个日志条目" .因为这是Change中的Insert操作，并且插入通知似乎有效，所以将通知所有设备.他们可以下载参考记录.

And I would create and observe with CKSubscription only the Change table. Always when a record is create, updated, deleted in a custom table, I would do two things, do that action and as a second action I would make a 'log entry' into the Change table. Because it is an Insert operation in Change, and insert notification seems to work, all the device would get notified. They could download the refered record.

您看到任何弊端吗?

推荐答案

我使用了类似的策略.有一些缺点:

I have used a similar strategy. There are some drawbacks:

• 更多数据(存储和传输)的使用
• 有限的订阅可能性，否则您必须复制更多数据.
• 您实际上不想在应用中添加额外的代码.

解决此问题的唯一好的方法是:

The only good solution to this problem is:

• Apple应该修复它...

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