Hi all,
I have an iOS app which uses CloudKit and the standard NSPersistentCloudKitContainer, which I rely on for syncing app data between the user's devices. If the user's iCloud account is full I can see a log message while debugging in Xcode shortly after startup which looks something like this:
error: CoreData+CloudKit: -[NSCloudKitMirroringDelegate _requestAbortedNotInitialized:](2183): <NSCloudKitMirroringDelegate: 0x281ddc1e0> - Never successfully initialized and cannot execute request '<NSCloudKitMirroringExportRequest: 0x2841e00f0> 51383346-87BA-44D8-B527-A0B1EE35A0EF' due to error: <CKError 0x282c50db0: "Partial Failure" (2/1011); "Failed to modify some records"; uuid = 7BA17495-4F05-4AF4-A463-C0DF5A823B2E; container ID = "iCloud.com.neufsters.pangram"; partial errors: {
E30B2972-FD4B-4D2A-BD1C-EB6F33F5367D:(com.apple.coredata.cloudkit.zone:__defaultOwner__) = <CKError 0x282c155f0: "Quota Exceeded" (25/2035); server message = "Quota exceeded"; op = FC4D3188D0A46ABC; uuid = 7BA17495-4F05-4AF4-A463-C0DF5A823B2E; Retry after 315.0 seconds>
2FC9A487-D630-444D-B7F4-27A0F3A6B46E:(com.apple.coredata.cloudkit.zone:__defaultOwner__) = <CKError 0x282c52820: "Quota Exceeded" (25/2035); server message = "Quota exceeded"; op = FC4D3188D0A46ABC; uuid = 7BA17495-4F05-4AF4-A463-C0DF5A823B2E; Retry after 315.0 seconds>
903DD6A0-0BD8-46C0-84FB-E89797514D9F:(com.apple.coredata.cloudkit.zone:__defaultOwner__) = <CKError 0x282c513e0: "Quota Exceeded" (25/2035); server message = "Quota exceeded"; op = FC4D3188D0A46ABC; uuid = 7BA17495-4F05-4AF4-A463-C0DF5A823B2E; Retry after 315.0 seconds>
}>
I would like to know how I can get a callback of some sort so I can run code if this CloudKit/CoreData error happens. In particular I'd like to put up some sort of warning to the user letting them know their data isn't going to sync.
Please note that I'm not looking for how to do error handling as a result of a user-initiated CloudKit API call. I'm looking for how to get notified when the background syncing logs errors like the above.
Thanks,
Russ