Question

在我的IOS应用程序中，我使用FMDB数据库来存储数据。我在检索数据时遇到问题。实际上在我的应用程序的最后一页，当我点击＆＃34; sendtowatch＆＃34;按钮，应保存数据，同时应检索数据，以便数据可以显示在我的手表应用程序中。我正在运行的应用程序的屏幕截图如下。我的源代码如下

screenshot of my running app screenshot

 @IBAction func sendToWatch(sender: AnyObject) {


    let ticketDB = FMDatabase(path: databasePath as String)
    if ticketDB.open()
    {

        let insertSQL = "INSERT INTO TICKET (image, ticket_category, ticket_type, date, time) VALUES ('\(display_image.image!)', '\(ticket_category.text!)', '\(ticket_type_name.text!)', '\(ticket_date.text!)', '\(ticket_time.text!)')"

        let result = ticketDB.executeUpdate(insertSQL,withArgumentsInArray: nil)

        if !result
        {

            print("Error: \(ticketDB.lastErrorMessage())")

        } else
        {

            let alt = PMAlertController(title: "Success!", description: "Your data is saved to Database!", image: UIImage(named: ""), style: .Alert)

            alt.addAction(PMAlertAction(title: "OK!", style: .Default, action: { (ACTION) -> Void in

                let ticketDB = FMDatabase(path: self.databasePath as String)
                if ticketDB.open()
                {

                    let querySQL = "SELECT * FROM TICKET"

                    let result: FMResultSet? = ticketDB.executeQuery(querySQL, withArgumentsInArray: nil)

                    if let result = result
                    {
                        self.ticketDataArray = NSMutableArray()
                        while result.next()
                        {
                            let ticketInfo = NSMutableDictionary()

                           ticketInfo.setObject(result.stringForColumn("image"), forKey: "image")
                            ticketInfo.setObject(result.stringForColumn("ticket_category"), forKey: "ticket_category")
                            ticketInfo.setObject(result.stringForColumn("ticket_type"), forKey: "ticket_type")
                            ticketInfo.setObject(result.stringForColumn("date"), forKey: "date")
                            ticketInfo.setObject(result.stringForColumn("time"), forKey: "time")
                            self.ticketDataArray.addObject(ticketInfo)

                        }

                    }else{
                       print("Error: \(ticketDB.lastErrorMessage())")

                    }

                ticketDB.close()

                }


            }))

            self.presentViewController(alt, animated: true, completion: nil)
            print(databasePath)

        }
    }


 }

 }

Answer 1

愿这会帮到你

让select_query =“SELECT * FROM TICKET WHERE image ='size {400,400} orientation 0 scale 1.000000'AND ticket_category ='Bus'AND ticket_type ='sssss'AND date ='2016年8月20日'和时间= '12：14'''

有关从FMDB数据库中检索数据的问题

1 个答案: