觀察CKRecord刪除不起作用

Question

CKSubscription醫生說：當記錄修改會導致訂閱火，服務器發送推送通知到所有設備與訂閱除外做出原型改變到一記錄。

假設我有兩個設備：device 1和device 2從不同的iCloud帳戶登錄。假設兩個設備都訂閱了某個記錄類型的記錄刪除。

1. 如果device 1創建一個記錄，然後device 1刪除它，然後device 2得到通知 - 這是根據DOC，但..
2. 如果device 1創建一個記錄，然後device 2刪除它，然後device 2得到通知 - 我不要以爲這是根據DOC，和它沒有任何意義，device 2刪除它，以便device 1應通知

---

設置預訂ON設備1和設備2

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool { 

    application.registerUserNotificationSettings(UIUserNotificationSettings(forTypes: .Alert, categories: nil)) 
    application.registerForRemoteNotifications() 

    let defaultContainer = CKContainer.defaultContainer() 
    let publicDatabase = defaultContainer.publicCloudDatabase 

    publicDatabase.fetchAllSubscriptionsWithCompletionHandler({subscriptions, error in 

     if error == nil { 

      if subscriptions.count == 0 { 

       let subscription = CKSubscription(recordType: "OU", predicate: NSPredicate(value: true), options: .FiresOnRecordDeletion) 
       subscription.notificationInfo = CKNotificationInfo() 
       subscription.notificationInfo.shouldBadge = false 
       subscription.notificationInfo.alertBody = "OU removed or upated" 
       publicDatabase.saveSubscription(subscription, completionHandler: {subscription, error in 
        if error == nil { 
        } else { 
         println("\(error.localizedDescription)") 
        } 
       }) 
      } 

     } else { 
      println("\(error.localizedDescription)") 
     } 
    }) 


    return true 
} 

---

創建記錄在設備1上

@IBAction func addOU(sender: AnyObject) { 

    var defaultContainer = CKContainer.defaultContainer() 
    var publicDatabase = defaultContainer.publicCloudDatabase 

    let r = CKRecord(recordType: "OU", recordID: CKRecordID(recordName: "aaaa")) 
    publicDatabase.saveRecord(r, completionHandler: { r2, error in 

     if error == nil { 
     } else { 
      println("\(error.localizedDescription)") 
     } 
    }) 
} 

---

刪除記錄在設備2

@IBAction func removeOU(sender: AnyObject) { 

    var defaultContainer = CKContainer.defaultContainer() 
    var publicDatabase = defaultContainer.publicCloudDatabase 

    publicDatabase.deleteRecordWithID(CKRecordID(recordName: "aaaa"), completionHandler: {recordID, error in 

     if error == nil { 

     } else { 
      println("\(error.localizedDescription)") 
     } 
    }) 
} 

Answer 1

我仍然認爲這並沒有什麼意義如何CKSubscription的作品，但作爲一個臨時的解決辦法，我建議改變的第一CKRecord的lastModifiedUserRecordID誰想要刪除記錄的用戶，以及事後才刪除記錄。

要更改lastModifiedUserRecordID你必須把它拿來，沒有做任何事情就可以將它存回，然後刪除可以來：

@IBAction func removeOU(sender: AnyObject) { 

    var defaultContainer = CKContainer.defaultContainer() 
    var publicDatabase = defaultContainer.publicCloudDatabase 

    publicDatabase.fetchRecordWithID(CKRecordID(recordName: "aaaa"), completionHandler: {record, error in 

     if error == nil { 

      publicDatabase.saveRecord(record, completionHandler: {record2, error in 

       if error == nil { 

        publicDatabase.deleteRecordWithID(CKRecordID(recordName: "aaaa"), completionHandler: {recordID, error in 

         if error == nil { 

         } else { 
          println("\(error.localizedDescription)") 
         } 
        }) 
       } else { 
        println("\(error.localizedDescription)") 
       } 
      }) 

     } else { 
      println("\(error.localizedDescription)") 
     } 
    }) 
}