查找每个CKrecords记录ID - Swift

Question

我找不到会根据用户找到任何CKRecord的recordName字符串。我想获取记录，修改它，然后将其保存回云端。我可以做到这一点，但一次只有一条记录。如果我切换用户我的项目崩溃，因为recordName：对新用户不起作用。

    if userLoad() {
    let newInfo = CKRecordID(recordName: "212F4229-67B3-469D-AF4A-B9A693512AD2")
        database.fetch(withRecordID: newInfo) { (record, Error) in
            record?["username"] = self.textField1.text as CKRecordValue?
            record?["type"] = self.textField2.text as CKRecordValue?
            record?["hours"] = self.textField3.text as CKRecordValue?


            self.database.save(record!, completionHandler: { (record, error) in
                if error != nil{print("error on info")
                } else {print("saved new info")}
            })
        }} else {print("no user")}

self.performSegue(withIdentifier: "account4", sender: self)

}