I need the identifier of a newly created contact directly after the save request. The use case: Within my app a user creates a new contact and give them some attributes (eg. name, address ...) after that he can save the contact. This scenario is working as aspected. My code looks like this:
func createContact(uiContact: Contact, withImage image:UIImage?, completion: String -> Void)
{
let contactToSave = uiContact.mapToCNContact(CNContact()) as! Cnmutablecontawctlet
if let newImage = image
{
contactToSave.imageData = UIImageJPEGRepresentation(newImage, 1.0)
}
request = CNSaveRequest()
request.addContact(contactToSave, toContainerWithIdentifier: nil)
do
{
try self.contactStore.executeSaveRequest(request)
print("Successfully saved the CNContact")
completion(contactToSave.identifier)
}
catch let error
{
print("CNContact saving faild: \(error)")
completion(nil)
}
}
The Contact Object (uiContact) is just an wrapper of CNContact.
In the closure completion I need to return the identifier but on this time I have no access to them, because he is creating by the system after the write process.
One solution could be to fetch the newly saved CNContact with predicate
public func unifiedContactsMatchingPredicate(predicate: NSPredicate, keysToFetch keys: [CNKeyDescriptor]) throws -> [CNContact]
but this seems to me like a bit unclean because this contact could have only a name and more than one could exist. Something like a callback with the created identifier would be nice. But there isn´t.
Is there a other way to solve this problem?
This may be a little late but in case someone needs this.
By using the latest SDK (iOS 11), I was able to get the identifier just by:
NSError *error = nil;
saveReq = [[CNSaveRequest alloc] init];
[saveReq addContact:cnContact toContainerWithIdentifier:containerIdentifier];
if (![contactStore executeSaveRequest:saveReq error:&error]) {
NSLog(#"Failed to save, error: %#", error.localizedDescription);
}
else
{
if ([cnContact isKeyAvailable:CNContactIdentifierKey]) {
NSLog(#"identifier for new contact is: %#", cnContact.identifier);
// this works for me everytime
} else {
NSLog(#"CNContact identifier still isn't available after saving to address book");
}
}
swift 4
This is the way to get contact id when creating contact
do {
try store.execute(saveRequest)
if contactToAdd.isKeyAvailable(CNContactIdentifierKey) {
print(contactToAdd.identifier) // here you are getting identifire
}
}
catch {
print(error)
}
Related
I am currently working on a project with a multi user system. The user is able to create new profiles which are saved persistently using CoreData.
My problem is: Only one profile can be the active one at a single time, so I would like to get the ObjectID of the created profile and save it to UserDefaults.
Further I was thinking that as soon as I need the data of the active profile, I can simply get the ObjectID from UserDefaults and execute a READ - Request which only gives me back the result with that specific ObjectID.
My code so far for SAVING THE DATA:
// 1. Create new profile entry to the context.
let newProfile = Profiles(context: context)
newProfile.idProfileImage = idProfileImage
newProfile.timeCreated = Date()
newProfile.gender = gender
newProfile.name = name
newProfile.age = age
newProfile.weight = weight
// 2. Save the Object ID to User Defaults for "activeUser".
// ???????????????????
// ???????????????????
// 3. Try to save the new profile by saving the context to the persistent container.
do {
try context.save()
} catch {
print("Error saving context \(error)")
}
My code so far for READING THE DATA
// 1. Creates an request that is just pulling all the data.
let request: NSFetchRequest<Profiles> = Profiles.fetchRequest()
// 2. Try to fetch the request, can throw an error.
do {
let result = try context.fetch(request)
} catch {
print("Error reading data \(error)")
}
As you can see, I haven't been able to implement Part 2 of the first code block. The new profile gets saved but the ObjectID isn't saved to UserDefaults.
Also Party 1 of the second code block is not the final goal. The request just gives you back all the data of that entity, not only the one with the ObjectID I stored in User Defaults.
I hope you guys have an idea on how to solve this problem.
Thanks for your help in advance guys!
Since NSManagedObjectID does not conform to one of the types handled by UserDefaults, you'll have to use another way to represent the object id. Luckily, NSManagedObjectID has a uriRepresentation() that returns a URL, which can be stored in UserDefaults.
Assuming you are using a NSPersistentContainer, here's an extension that will handle the storage and retrieval of a active user Profile:
extension NSPersistentContainer {
private var managedObjectIDKey: String {
return "ActiveUserObjectID"
}
var activeUser: Profile? {
get {
guard let url = UserDefaults.standard.url(forKey: managedObjectIDKey) else {
return nil
}
guard let managedObjectID = persistentStoreCoordinator.managedObjectID(forURIRepresentation: url) else {
return nil
}
return viewContext.object(with: managedObjectID) as? Profile
}
set {
guard let newValue = newValue else {
UserDefaults.standard.removeObject(forKey: managedObjectIDKey)
return
}
UserDefaults.standard.set(newValue.objectID.uriRepresentation(), forKey: managedObjectIDKey)
}
}
}
This uses a method on NSPersistentStoreCoordinator to construct a NSManagedObjectID from a URI representation.
I'm trying to get the users first name using cloud kit however the following code is not getting the users first name and is leaving firstNameFromFunction variable empty. Does anyone know how to achieve this in iOS 10?
let container = CKContainer.default()
container.fetchUserRecordID { (recordId, error) in
if error != nil {
print("Handle error)")
}else{
self.container.discoverUserInfo(
withUserRecordID: recordId!, completionHandler: { (userInfo, error) in
if error != nil {
print("Handle error")
}else{
if let userInfo = userInfo {
print("givenName = \(userInfo.displayContact?.givenName)")
print("familyName = \(userInfo.displayContact?.familyName)")
firstNameFromFunction = userInfo.displayContact?.givenName
}else{
print("no user info")
}
}
})
}
}
the permission screen that comes up when asking for the first time, IMO, is very poorly worded. They need to change that. It says "Allow people using 'your app' to look you up by email? People who know your email address will be able to see that you use this app." This make NO sense. This has nothing to do with asking the user to get their iCloud first name, last name, email address.
Speaking of email address - this and the phone number from the lookupInfo property is missing - i.e. set to nil, even though those values are legit and correct. Filing a bug tonight.
First, you will need to request permission to access the user's information.
Then, you can use a CKDiscoverUserIdentitiesOperation. This is just like any other CKOperation (eg. the modify record operation). You just need to create a new operation with the useridentitylookupinfo. Then you will also need to create a completion block to handle the results.
Here is an example function I created:
func getUserName(withRecordID recordID: CKRecordID,
completion: #escaping (String) -> ()) {
if #available(iOS 10.0, *) {
let userInfo = CKUserIdentityLookupInfo(userRecordID: recordID)
let discoverOperation = CKDiscoverUserIdentitiesOperation(userIdentityLookupInfos: [userInfo])
discoverOperation.userIdentityDiscoveredBlock = { (userIdentity, userIdentityLookupInfo) in
let userName = "\((userIdentity.nameComponents?.givenName ?? "")) \((userIdentity.nameComponents?.familyName ?? ""))"
completion(userName)
}
discoverOperation.completionBlock = {
completion("")
}
CKContainer.default().add(discoverOperation)
} else {
// iOS 10 and below version of the code above,
// no longer works. So, we just return an empty string.
completion("")
}
}
First you need to ask the user for permission to be discovered.
Use CKContainer.default().requestApplicationPermission method passing .userDiscoverability on applicationPermission parameter.
The CKContainer.default().discoverUserInfo method is deprecated on iOS 10. Instead use CKContainer.default().discoverUserIdentity method.
Do something like:
CKContainer.default().requestApplicationPermission(.userDiscoverability) { (status, error) in
CKContainer.default().fetchUserRecordID { (record, error) in
CKContainer.default().discoverUserIdentity(withUserRecordID: record!, completionHandler: { (userIdentity, error) in
print("\(userIdentity?.nameComponents?.givenName)")
print("\(userIdentity?.nameComponents?.familyName)")
})
}
}
I am having trouble understanding some of the CloudKit sharing concepts and the WWDC 2016 "What's new in CloudKit" video doesn't appear to explain everything that is required to allow users to share and access shared records.
I have successfully created an app that allows the user to create and edit a record in their private database.
I have also been able to create a Share record and share this using the provided sharing UIController. This can be successfully received and accepted by the participant user but I can't figure out how to query and display this shared record.
The app creates a "MainZone" in the users private database and then creates a CKRecord in this "MainZone". I then create and save a CKShare record and use this to display the UICloudSharingController.
How do I query the sharedDatabase in order to access this record ? I have tried using the same query as is used in the privateDatabase but get the following error:
"ShareDB can't be used to access local zone"
EDIT
I found the problem - I needed to process the accepted records in the AppDelegate. Now they appear in the CloudKit dashboard but I am still unable to query them. It seems I may need to fetch the sharedDatabase "MainZone" in order to query them.
Dude, I got it: First you need to get the CKRecordZone of that Shared Record. You do it by doing the following:
let sharedData = CKContainer.default().sharedCloudDatabase
sharedData.fetchAllRecordZones { (recordZone, error) in
if error != nil {
print(error?.localizedDescription)
}
if let recordZones = recordZone {
// Here you'll have an array of CKRecordZone that is in your SharedDB!
}
}
Now, with that array in hand, all you have to do is fetch normally:
func showData(id: CKRecordZoneID) {
ctUsers = [CKRecord]()
let sharedData = CKContainer.default().sharedCloudDatabase
let predicate = NSPredicate(format: "TRUEPREDICATE")
let query = CKQuery(recordType: "Elder", predicate: predicate)
sharedData.perform(query, inZoneWith: id) { results, error in
if let error = error {
DispatchQueue.main.async {
print("Cloud Query Error - Fetch Establishments: \(error)")
}
return
}
if let users = results {
print(results)
self.ctUsers = users
print("\nHow many shares in cloud: \(self.ctUsers.count)\n")
if self.ctUsers.count != 0 {
// Here you'll your Shared CKRecords!
}
else {
print("No shares in SharedDB\n")
}
}
}
}
I didn't understand quite well when you want to get those informations. I'm with the same problem as you, but I only can get the shared data by clicking the URL... To do that you'll need two functions. First one in AppDelegate:
func application(_ application: UIApplication, userDidAcceptCloudKitShareWith cloudKitShareMetadata: CKShareMetadata) {
let acceptSharesOperation = CKAcceptSharesOperation(shareMetadatas: [cloudKitShareMetadata])
acceptSharesOperation.perShareCompletionBlock = {
metadata, share, error in
if error != nil {
print(error?.localizedDescription)
} else {
let viewController: ViewController = self.window?.rootViewController as! ViewController
viewController.fetchShare(cloudKitShareMetadata)
}
}
CKContainer(identifier: cloudKitShareMetadata.containerIdentifier).add(acceptSharesOperation)
}
in ViewConroller you have the function that will fetch this MetaData:
func fetchShare(_ metadata: CKShareMetadata) {
let operation = CKFetchRecordsOperation(recordIDs: [metadata.rootRecordID])
operation.perRecordCompletionBlock = { record, _, error in
if error != nil {
print(error?.localizedDescription)
}
if record != nil {
DispatchQueue.main.async() {
self.currentRecord = record
//now you have your Shared Record
}
}
}
operation.fetchRecordsCompletionBlock = { _, error in
if error != nil {
print(error?.localizedDescription)
}
}
CKContainer.default().sharedCloudDatabase.add(operation)
}
As I said before, I'm now trying to fetch the ShareDB without accessing the URL. I don't want to depend on the link once I already accepted the share. Hope this helps you!
In AddressBook on device I have a record linked with Facebook contact record.
I fetch it into CNContact with CNContactFetchRequest with:
contactFetchRequest.mutableObjects = true
contactFetchRequest.unifyResults = false
After getting, I modify it, then I trying to update it with:
let store = CNContactStore()
let saveRequest = CNSaveRequest()
if contact != nil {
mutableContact = contact!.mutableCopy() as! CNMutableContact
saveRequest.updateContact( mutableContact )
} else {
mutableContact = CNMutableContact()
saveRequest.addContact( mutableContact, toContainerWithIdentifier:nil )
}
// Modify mutableContact
mutableContact.jobTitle = "Worker";
do {
// Will fails with error
try store.executeSaveRequest(saveRequest)
} catch let error as NSError {
BCRLog(error)
self.isFailed = true
} catch {
self.isFailed = true
}
On execute executeSaveRequest, I caught an error:
NSError with domain:CNErrorDomain, code:500 (witch is
CNErrorCodePolicyViolation), _userInfo: {"NSUnderlyingError" :
{"ABAddressBookErrorDomain" - code 0}} witch is
kABOperationNotPermittedByStoreError
The question: Is it possible to modify linked contact (not unified), and if it is, what i do wrong?
If I modifying not linked contact - all OK!
I have this error when the Contacts app is configured to store contacts in an Exchange account. When I choose an iCloud account as a default it immediately saves a contact well. I can check what is set on your device in Settings -> Contacts -> Default Account
I'm trying to save a CKRecord with a location field along with it but when ever I try to it crashes. Here's the code I'm using (crashes where it says: // CRASHES HERE):
func saveStateMood(stateToSave:String) {
// Create CK record
let newRecord:CKRecord = CKRecord(recordType: "State")
let newLocation:CKLocationSortDescriptor = CKLocationSortDescriptor(key: "Loco", relativeLocation: self.theState)
newRecord.setValue(stateToSave, forKey: "State")
newRecord.setValue(newLocation, forKey: "Loco") // CRASHES HERE!!!!!!
// Save record into public database
if let database = self.publicDatabase {
database.saveRecord(newRecord, completionHandler: { (record:CKRecord!, error:NSError!) -> Void in
// Check for error
if error != nil {
// There was an error
NSLog(error.localizedDescription)
}
else {
// There was no error
dispatch_async(dispatch_get_main_queue()) {
// Refresh table
//self.retrieveStateMoods("")
}
}
})
}
}
(I'm using the CLGeocoder to find the current location then I assign the current location to "theState")
I'm trying to follow the CloudKit Quick Start guideline for adding location fields but it is all written in Obj-C and I can't seem to figure it out and I also can't figure out how to fetch the records by their location field either.
You need to store an instance of CLLocation in your record. But you are trying to save an instance of CKLocationSortDescriptor. Update your code to use CLLocation.