CODEWITHSUNDEEP
iosswiftpush-notificationcloudkit
JohnSF
JohnSF

Reputation: 4300

Can't get CKRecord.ID from CloudKit notificationInfo and userInfo structure

I have setup a subscription on the public database for a CloudKit application. I want to retrieve the recordName from the notificationInfo that is returned. I have not been able to find any documentation to explain how to retrieve the recordName with framework methods, so I have attempted to parse the info manually it does not work, but this seems seriously brute force and I'm not sure I can count on the notificationInfo structure always being the same. Any guidance would be appreciated. Here is the code snippet.

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {

    var changedCKRecord : String

    let dict = userInfo as! [String : NSObject]
    let notification = CKNotification(fromRemoteNotificationDictionary: dict)
    let db = CloudKitDatabase.shared

    if notification.subscriptionID == db.ckStyleSubscriptionID {
        db.handleNotification()
        completionHandler(.newData)
        print(".newData for CKStyle returned")

        for (key,value) in dict {
            if key == "ck" {
                let newDict : [String : NSObject] = value as! [String : NSObject]
                for (key2,value2) in newDict {
                    if key2 == "qry" {
                        let thirdDict : [String : NSObject] = value2 as! [String : NSObject]
                        for (key3,value3) in thirdDict {
                            if key3 == "rid" {
                                if let end = value3 as? String {
                                    changedCKRecord = end
                                    print(changedCKRecord as Any)
                                }
                            }//if key3
                        }//for key3
                    }//if key2
                }//for key 2 in
            }//if key is ck
        }//for in

    } else {
        completionHandler(.noData)
        print(notification.subscriptionID as Any)
        print(db.ckStyleSubscriptionID)
        print(".noData for CKStyle returned")
    }//if notification else

}//didReceiveRemoteNotification

If I print the notificationInfo:

[AnyHashable("aps"): {"content-available" = 1;},
AnyHashable("ck"): {
ce = 2;
cid = "iCloud. the real bundle identifier  ";
ckuserid = "_c4478d4d3a212da39cca27eb17dffe03";
nid = "58372f81-d10b-4e3b-98ae-40a0d1e048a2";
qry =     {
dbs = 2;
fo = 2;
rid = "97DB306F-3277-07A1-04F5-40228A5EF036";
sid = "ckstyle-changes";
zid = "_defaultZone";
zoid = "_defaultOwner";
};
}]

Upvotes: 1

Views: 346

Answers (1)

Paulw11
Paulw11

Reputation: 114783

If the notification is a result of a subscription, then CKNotification(fromRemoteNotificationDictionary:) will actually return an instance of CKQueryNotification. You can then access the CKQueryNotification's recordID property to obtain the id of the record that changed.

let dict = userInfo as! [String : NSObject]
let notification = CKNotification(fromRemoteNotificationDictionary: dict)
if let queryNotification = notification as? CKQueryNotification,
   let recordName = queryNotification.recordID?.recordName {
       print("Record name is \(recordName)")
   }
}

Upvotes: 4

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