I'm trying to save a CKRecord (already created and saved to the database) and a new CKShare to it but I keep getting this error: Optional("Failed to modify some records"). Here is my code:
let csc = UICloudSharingController { controller, preparationCompletionHandler in
let share = CKShare(rootRecord: user)
share[CKShareTitleKey] = "My Share" as CKRecordValue
share.publicPermission = .readWrite
let mro = CKModifyRecordsOperation(recordsToSave: [user, share], recordIDsToDelete: nil)
mro.timeoutIntervalForRequest = 10
mro.timeoutIntervalForResource = 10
mro.modifyRecordsCompletionBlock = { records, recordIDs, error in
if error != nil {
print("ERROR IN MODIFY RECORDS COMPLETION BLOCK\n")
print(error?.localizedDescription)
}
preparationCompletionHandler(share,CKContainer.default(), error)
}
privateData.add(mro)
}
csc.availablePermissions = [.allowPrivate,.allowReadWrite]
self.present(csc, animated:true)
}
The problem is in this method: modifyRecordsCompletionBlock. Can somebody explain me why this is happening?
Thanks in advance!
I got it
All you have to do is create a private custom CKZone and save your CKRecord and CKShare in it, you cannot use the default zone cloud kit gives to you!
To leave a shared record, you have to delete the CKShare record from the shared database otherwise you'll get errors.
Related
I am trying to implement a function that allows the user to delete chats that they have with other users.
At the moment the code works and the firestore document is deleted successfully however as soon as the delete happens the code crashes and i get this error "Fatal error: Unexpectedly found nil while unwrapping an Optional value" next to the id = data!["id"] in the code. I guess that after the delete happens firestore keeps listening for documents and finds an empty collection following the delete. Does anyone know how to stop this from happening?
public func deleteConversation(conversationId: String, completion: #escaping (Bool) -> Void) {
// Get all conversations for current user
let CurrentUser = Auth.auth().currentUser?.uid
let db = Firestore.firestore()
let ConversationRef = db.collection("users").document(CurrentUser!).collection("conversations").document(test!)
print("deleting conversation with \(test!)")
ConversationRef.addSnapshotListener { snapshot, error in
guard let document = snapshot else {
print("Error getting documents: \(String(describing: error))")
return
}
let data = document.data()
if let id = data!["id"] as? String, id == conversationId {
print("conversation found")
ConversationRef.delete()
}
completion(true)
print("deleted conversation")
}
}
The problem comes from:
ConversationRef.addSnapshotListener { snapshot, error in
By calling addSnapshotListener you're adding a listener that:
Gets the document snapshot straight away,
Continues listening for changes and calls your code again then there are any.
The problem is in #2, as it means your code executes again when the document is deleted, and at that point document.data() will be nil.
The simplest fix is to only read the document once:
ConversationRef.getDocument { (document, error) in
I had CloudKit working for the last couple weeks and this morning when I was trying to save a record, something I had done a number of times before, I started getting a Permission Error
Error saving to CloudKit: <CKError 0x600001f48ed0: "Permission Failure"
(10/2007); server message = "Operation not permitted"; uuid = 78FA3DD1-
EA44-4701-9A7E-8291F076DD8F; container ID = "[CloudKit Container Name]"> - Error fetching auth tokens from server:
Operation not permitted'
So I have triple checked that it's requesting to the right container, which it is (I only have two containers setup on my CloudKit so it's an easy check.
I have turned off and turned CloudKit on again in XCode as an attempt to force reset it (not sure if that did anything helpful but figured I would give it a shot)
In case this is needed, this is how I am saving to CloudKit (had no problem with this bit of code in the past.
func createRecord(title: String, type: String, comment: String) {
let audioRecord = CKRecord(recordType: "Audio")
audioRecord["title"] = title as CKRecordValue
audioRecord["type"] = type as CKRecordValue
audioRecord["comment"] = comment as CKRecordValue
let audioURL = audioRecorder.getAudioURL()
let audioAsset = CKAsset(fileURL: audioURL)
audioRecord["audio"] = audioAsset
DispatchQueue.main.async {
CKContainer.default().publicCloudDatabase.save(audioRecord) { [self] record, error in
//print(CKContainer.default())
if let error = error {
print("Error saving to CloudKit: \(error.self) - \(error.localizedDescription)")
} else {
print("Record has been successfully saved to CloudKit")
}
}
}
}
Swift 3.1, Xcode 8.3.3
I keep getting an error from CloudKit and I don't know what to do about it.
I'm tracking notifications from CloudKit like this:
let operation = CKFetchNotificationChangesOperation(previousServerChangeToken: previousChangeToken)
//Hold the notification IDs we processed so we can tell CloudKit to never send them to us again
var notificationIDs = [CKNotificationID]()
operation.notificationChangedBlock = { [weak self] notification in
guard let notification = notification as? CKQueryNotification else { return }
if let id = notification.notificationID {
notificationIDs.append(id)
}
}
operation.fetchNotificationChangesCompletionBlock = { [weak self] newToken, error in
if let error = error{
print(error) //<-- <!> This is the error <!>
}else{
self?.previousChangeToken = newToken
//All records are in, now save the data locally
let fetchOperation = CKFetchRecordsOperation(recordIDs: recordIDs)
fetchOperation.fetchRecordsCompletionBlock = { [weak self] records, error in
if let e = error {
print("fetchRecordsCompletionBlock Error fetching: \(e)")
}
//Save records to local persistence...
}
self?.privateDB.add(fetchOperation)
//Tell CloudKit we've read the notifications
let operationRead = CKMarkNotificationsReadOperation(notificationIDsToMarkRead: notificationIDs)
self?.container.add(operationRead)
}
}
container.add(operation)
And the error says:
<CKError 0x174241e90: "Change Token Expired" (21/1016); server message
= "Error code: RESET_NEEDED"; uuid = ...; container ID = "...">
The CKServerChangeToken documentation don't mention anything about resetting the token, and the CloudKit dashboard doesn't offer any such option.
Any idea what I'm supposed to do?
This error code is CKErrorCodeChangeTokenExpired, and it's an indication that you need to re-sync your changes.
https://developer.apple.com/documentation/cloudkit/ckerror/2325216-changetokenexpired
This error code gets returned when the change token is too old, or the container has been reset (resetting the container invalidates old change tokens).
The comments related to this error code include:
(Describing the code itself):
The previousServerChangeToken value is too old and the client must re-sync from scratch
(On various fetch operation completion/updated blocks):
If the server returns a CKErrorChangeTokenExpired error, the serverChangeToken used for this record zone when initting this operation was too old and the client should toss its local cache and re-fetch the changes in this record zone starting with a nil serverChangeToken.
I am trying to delete the row where username = usernameSelected from the Heroku/Parse server. Username selected is not nil and does exist on the server. Nothing seem wrong at all, only the "Object not found" instead of deleting the whole row.
let query = PFQuery(className: "Requests")
query.whereKey("username", equalTo: usernameSelected)
query.limit = 1
query.findObjectsInBackgroundWithBlock({ (objects, error) in
if error != nil {
}else {
if let objects = objects {
for obj in objects {
obj.deleteInBackgroundWithBlock({ (success, error) in
activityIndicator.stopAnimating()
UIApplication.sharedApplication().endIgnoringInteractionEvents()
if error != nil {
self.alertDisplay("Error", message: error?.userInfo["error"] as! String)
}else {
self.alertDisplay("", message: "Styles Submitted..! Please wait for your next Style")
}
})
}
}
}
})
make sure you have read and write permissions for your class
the deleting could be failing because the ACL for the rows created in your class only have the read permission. To allow both read and write permissions, in your AppDelegate under method "didFinishLaunchingWithOptions" you will see lines
let defaultACL = PFACL();
// If you would like all objects to be private by default, remove this line.
defaultACL.getPublicReadAccess = true
add the line --- defaultACL.getPublicWriteAccess = true
this will help you create all rows with write permissions so that in future you can delete an object from the client side.
So I made a chatroom and when someone sends a message they also add a Subscription in my cloud kit database but the problem is there cant be more then one of the same name that is a subscription and I want them to be able to set more subscriptions then one. Here is some code:
func setupCloudKitSubscription () {
let userDefaults = NSUserDefaults.standardUserDefaults()
if userDefaults.boolForKey("subscribed") == false {
let predicate = NSPredicate(format: "TRUEPREDICATE", argumentArray: nil)
let subscription = CKSubscription(recordType: "Extra1", predicate: predicate, options: CKSubscriptionOptions.FiresOnRecordCreation)
let notificationInfo = CKNotificationInfo()
notificationInfo.alertLocalizationKey = "New Sweet"
notificationInfo.shouldBadge = true
subscription.notificationInfo = notificationInfo
let publicData = CKContainer.defaultContainer().publicCloudDatabase
publicData.saveSubscription(subscription) { (subscription:CKSubscription?, error:NSError?) -> Void in
if error != nil {
print(error?.localizedDescription)
}else{
userDefaults.setBool(true, forKey: "subscribed")
userDefaults.synchronize()
You see how it says recordType: "Extra1" how can I made the "Extra1" different text every time someone makes a subscription? Thanks!
Your question is not completely clear. I think what you wanted to ask is that you want the subscription to send you a different message with each notification.
You could set it to display one or more fields of the record. For doing that you should use something like this:
notificationInfo.alertLocalizationKey = "Response: %1$#"
notificationInfo.alertLocalizationArgs = ["responseField"]
Then you also need this in your Localization.Strings file.
"Response: %1$#" = "Response: %1$#";