I'm having some trouble with the following function from the CKSyncEngineDelegate protocol.
func nextRecordZoneChangeBatch(_ context: CKSyncEngine.SendChangesContext,
syncEngine: CKSyncEngine) async -> CKSyncEngine.RecordZoneChangeBatch? {
The sample code from the documentation is
func nextRecordZoneChangeBatch(
_ context: CKSyncEngine.SendChangesContext,
syncEngine: CKSyncEngine
) async -> CKSyncEngine.RecordZoneChangeBatch? {
// Get the pending record changes and filter by the context's scope.
let pendingChanges = syncEngine.state.pendingRecordZoneChanges
.filter { context.options.zoneIDs.contains($0) }
// Return a change batch that contains the corresponding materialized records.
return await CKSyncEngine.RecordZoneChangeBatch(
pendingChanges: pendingChanges) { self.recordFor(id: $0) }
}
init?(pendingChanges: [CKSyncEngine.PendingRecordZoneChange], recordProvider: (CKRecord.ID) -> (CKRecord?)) works fine for the sample app which only has one record type, but it seems incredible inefficient for my app which has a dozen different record types. The recordProvider gives you a CKRecord.ID, but not the CKRecord.RecordType. Searching each record type for a matching ID seems very inefficient.
Doesn't the CKSyncEngine.PendingRecordZoneChange contain an array of CKRecords, not just CKRecord.IDs? According to the documentation CKSyncEngine.RecordZoneChangeBatch has a recordsToSave property, but Xcode reports 'CKSyncEngine.PendingRecordZoneChange' has no member 'recordsToSave'
I'm looking for someway to get the CKRecords from syncEngine.state.pendingRecordZoneChanges.
