I have an app where I can create and share records with other users. When I share a record and the user accepts it, I can display the shared object right after the `userDidAcceptCloudKitShareWith` gets called and using the `CKFetchRecordsOperation` class to fetch the object, no issues here. My problem is trying to read the shared records directly from the `Shared Database` after the user has accepted the record, closed the app, and reopened the app again.
The following code successfully reads all of the records from the `Private Database` located in a zone called `ListsZone`.
@IBAction func sharedRecords(_ sender: Any) {
let privateDatabase = CKContainer.init(identifier: "iCloud.com.mySite.lists").database(with: .private)
let predicate = NSPredicate(value: true)
let query = CKQuery(recordType: "Items", predicate: predicate)
let ckRecordZoneID = CKRecordZone(zoneName: "ListsZone")
let ckRecordID = CKRecord.ID(zoneID: ckRecordZoneID.zoneID)
privateDatabase.perform(query, inZoneWith:ckRecordID.zoneID){( results , error) in
guard error == nil else{
print("Error \(String(describing: error?.localizedDescription))")
return
}
if let itemsFromResults = results{
print("Items: \(itemsFromResults)")
}
}
}What I'm expecting is to be able to read the shared records from the `Shared Database` with the same code above except modifying the line below, but it's not working.
let privateDatabase = CKContainer.init(identifier: "iCloud.com.mySite.lists").database(with: .shared)I get the following error.
"Only shared zones can be accessed in the shared DB"
What am I missing?
What is the proper way to read records from the `Shared Database`?
I was under the impression that users who already accepted a shared record from a user and the records are saved in the `Shared Database` the user could access the records by requiring the `Shared Database` directly as shown in my code above.
FYI - I know there are shared records in the shared database because I can see them in the CloudKit dashboard.
Apparently the name of your `CustomZone` record changes when it gets added to the Shared Database so, you first need to retrieve all custom zones from the shared database.
I found the answer thanks to the following two threads.
https://stackoverflow.com/questions/40603657/cloudkit-sharing
##CODE:
@IBAction func readSharedRecords(_ sender: Any) {
let sharedData = CKContainer.default().sharedCloudDatabase
sharedData.fetchAllRecordZones { (recordZone, error) in
if error != nil {
print(error?.localizedDescription ?? "Error")
}
if let recordZones = recordZone {
for i in 0..<recordzones.count{
// find the zone you want to query
if recordZones[i].zoneID.zoneName == "ListsZone"{
self.sharedRecords(zID: recordZones[i].zoneID)
}
}
}
}
}
func sharedRecords(zID: CKRecordZone.ID){
let privateDatabase = CKContainer.init(identifier: "iCloud.com.mySite.lists").database(with: .shared)
let predicate = NSPredicate(value: true)
let query = CKQuery(recordType: "Items", predicate: predicate)
privateDatabase.perform(query, inZoneWith: zID){( results , error) in
guard error == nil else{
print("Error: \(String(describing: error?.localizedDescription))")
return
}
if let itemsFromResults = results{
print("Items: \(itemsFromResults)")
}
}
}