试图快速修改ckrecord

Posted 2023-02-24

【中文标题】试图快速修改ckrecord

【英文标题】：Trying to modify ckrecord in swift

【发布时间】：2016-09-05 18:42:31

【问题描述】：

我希望在 cloudkit 中更新用户的位置，但我的代码每次都保存一条新记录。如何修改现有记录或用新记录替换？

func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation])
    
        let location = locations.last
        let center = CLLocationCoordinate2D(latitude: location!.coordinate.latitude, longitude: location!.coordinate.longitude)
        let region = MKCoordinateRegion(center: center, span: MKCoordinateSpan(latitudeDelta: 0.01, longitudeDelta: 0.01))
        self.mapView.setRegion(region, animated: true)
        self.locationManager.stopUpdatingLocation()
        locationRecord.setObject(location, forKey: "location")
        let publicData = CKContainer.defaultContainer().publicCloudDatabase
        publicData.saveRecord(locationRecord)  record, error in
        
            if error == nil
            
                print("Location saved")
                self.loc1 = location!
            
    

【问题讨论】：

什么是locationRecord？

让 locationRecord = CKRecord(recordType: "location") @matt

好吧，这就是你的问题。如果您想修改现有记录，为什么要创建新记录？

我将如何修改它而不是@matt

【参考方案1】：

要修改记录，您需要提取原始记录 - 更新详细信息，然后保存记录。

我会通过缓存对原始recordID的引用来做到这一点，例如

var locationRecordforUser = (whatever your CKrecord was when you created it)

然后在上面的定位方法中，抓住它，进行更改并执行保存

 record.setValue(locationbits, forKey: locationField)
            self. publicData.saveRecord(record, completionHandler:  (savedRecord, error) in
              dispatch_async(dispatch_get_main_queue()) 
                  completion(savedRecord, error)
               
           )