返回大集合时CKQuery失败

时间:2016-06-05 21:57:45

标签: ios cloudkit ckquery

我在启动应用时使用CloudKit下载文件。我有一个CKQuery,可以找到尚未下载的所有文件。当只有一个或两个要下载时,它工作正常,但是当有大量数据时,它会因错误而失败:

  

\"服务器拒绝请求\" (2000分之15);服务器消息= \"内部服务器错误\&#34 ;;

这发生在设备或模拟器上。

相关代码

    let container = CKContainer(identifier: "iCloud.quaritate.Agni")
    let publicDB = container.publicCloudDatabase
    let privateDB = container.privateCloudDatabase

    let predicate = NSPredicate(format: "NOT (%@ CONTAINS Name)", downloadedTitles)
    let query = CKQuery(recordType: "List", predicate: predicate)
    publicDB.performQuery(query, inZoneWithID: nil, completionHandler: {
        results, error in
        if error != nil{
            //error getting lists
            NSLog("\(error?.description)")
        }else{
            //got lists
        }
    }

EDIT
我已更新我的代码以使用CKOperationQueue

func getNewWords(){
    let predicate = NSPredicate(format: "NOT (%@ CONTAINS Name)", downloadedTitles)
    let query = CKQuery(recordType: "List", predicate: predicate)

    let queryOperation = CKQueryOperation(query: query)
    let operationQueue = NSOperationQueue()
    self.executeQueryOperation(queryOperation, onOperationQueue: operationQueue)
}

func executeQueryOperation(queryOperation: CKQueryOperation, onOperationQueue operationQueue: NSOperationQueue) {
    NSLog("Executing query operation")
    let container = CKContainer(identifier: "iCloud.quaritate.Agni")
    let publicDB = container.publicCloudDatabase

    queryOperation.database = publicDB

    queryOperation.recordFetchedBlock = {(record:CKRecord) in
        self.saveRecord(record)
    }

    queryOperation.queryCompletionBlock = {(cursor:CKQueryCursor?, error:NSError?)->Void in
        guard error == nil else{
            NSLog("Query error: \(error?.description)")
            return
        }
        if let queryCursor = cursor { //there are more operations to execute
            let queryCursorOperation = CKQueryOperation(cursor: queryCursor)
            self.executeQueryOperation(queryCursorOperation, onOperationQueue: operationQueue)
        }
    }
    operationQueue.addOperation(queryOperation)
}

但仍然收到同样的错误。

2 个答案:

答案 0 :(得分:4)

仔细检查downloadedTitles是否为空数组。如果在这样的查询中发送空数组,服务器将返回此错误。

这是来自服务器的错误 - 我已经提交了一个错误,以便在这种情况下返回更好的错误消息(或根本没有结果)。

答案 1 :(得分:1)

嗯,这可能实际上是内部错误。我也遇到过CloudKit的错误,并且在我的Apple Developer论坛报告后修复了。试试那里,苹果公司的开发人员可能会对你的问题做些什么。