【发布时间】:2020-04-13 11:21:35
【问题描述】:
我为privateCloudDatabase 创建了一个区域。
static var privateCloudDatabase: CKDatabase {
let container = CKContainer(identifier: "iCloud.<bundle>")
return container.privateCloudDatabase
}
static func createZone() {
let fetchZonesOperation = CKFetchRecordZonesOperation.fetchAllRecordZonesOperation()
fetchZonesOperation.fetchRecordZonesCompletionBlock = {
(recordZones: [CKRecordZone.ID : CKRecordZone]?, error: Error?) -> Void in
guard error == nil else {
return
}
for recordID in recordZones.keys {
if recordID.zoneName == zoneName {
print("Zone Already Created: \(recordID)")
} else if recordID.zoneName == "_defaultZone" {
print("Deafult Zone")
} else {
let customZone = CKRecordZone(zoneName: zoneName)
privateCloudDatabase.save(customZone) { zone, error in
if let error = error{
print("Zone creation error: \(String(describing: error))")
} else {
print("Zone created: \(String(describing: zone?.zoneID.zoneName))")
}
}
}
}
}
fetchZonesOperation.qualityOfService = .utility
privateCloudDatabase.add(fetchZonesOperation)
}
它运行成功,我收到一条成功消息,但创建的 Zone 没有显示在 CloudKit 仪表板中。它现在只显示_default 区域。
另一个问题与删除Zone 中的所有数据有关。为此,我使用了以下代码
let fetchZonesOperation = CKFetchRecordZonesOperation.fetchAllRecordZonesOperation()
fetchZonesOperation.fetchRecordZonesCompletionBlock = {
(recordZones: [CKRecordZone.ID : CKRecordZone]?, error: Error?) -> Void in
guard error == nil else {
return
}
guard let recordZones = recordZones else { return }
let deletionOperation = CKModifyRecordZonesOperation(recordZonesToSave: nil, recordZoneIDsToDelete: recordZones.keys.map { $0 })
deletionOperation.modifyRecordZonesCompletionBlock = { _, deletedZones, error in
guard error == nil else {
let error = error!
print("Error deleting records.", error)
return
}
print("Records successfully deleted in this zone.")
}
}
fetchZonesOperation.qualityOfService = .userInitiated
privateCloudDatabase.add(fetchZonesOperation)
在这里,我既没有收到任何成功消息,也没有收到任何错误消息。我尝试从区域中删除所有数据的另一种方法是
let customZone = CKRecordZone(zoneName: zoneName)
let predicate = NSPredicate(value: true)
let query = CKQuery(recordType: recordType, predicate: predicate)
privateCloudDatabase.perform(query, inZoneWith: customZone.zoneID) { (records, error) in
if error == nil {
for record in records! {
removeRecord(record.recordID.recordName) { record, error in
}
}
}
}
在这里,我收到了成功消息,但是当我尝试从区域中获取数据时,我得到了所有条目,这表明使用上述任何方法都没有删除数据。对这些查询有何建议?
【问题讨论】: