Swipe to edit sqlite database content in swift

Question

Im trying to make an app that stores personal details which can be deleted, edited using editActionsForRowAtIndexPath. The delete option seems to work fine but I am having problems with the edit action.

I get an error as I've mentioned below:

Could not cast value of type 'Table_view.UserTableViewController' (0x10a1991b0) to 'NSIndexPath' (0x10a5e8438).

UserRecordViewController is the View Controller where the personal details are to be displayed. And InsertRecordViewController is the other View Controller.

UserTableViewController relevant Code :

func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [UITableViewRowAction]? {
    // 1
    let editAction = UITableViewRowAction(style: UITableViewRowActionStyle.Default, title: "Edit" , handler: { (action:UITableViewRowAction, indexPath:NSIndexPath) -> Void in

            self.performSegueWithIdentifier("editSegue", sender: self)

    })

    editAction.backgroundColor = UIColor.darkGrayColor()
   // let editIndex = editAction.indexOfAccessibilityElement(indexPath.row)

    let deleteAction = UITableViewRowAction(style: UITableViewRowActionStyle.Default, title: "Delete" , handler: { (action:UITableViewRowAction, indexPath:NSIndexPath) -> Void in

        let userInfo: UserInfo = self.marrUserData.objectAtIndex(indexPath.row) as! UserInfo
        let isDeleted = ModelManager.getInstance().deleteUserData(userInfo)
        if isDeleted {
            Util.invokeAlertMethod("", strBody: "Record deleted successfully.", delegate: nil)
        } else {
            Util.invokeAlertMethod("", strBody: "Error in deleting record.", delegate: nil)
        }
        self.getUserData()

    })

    deleteAction.backgroundColor = UIColor.lightGrayColor()

    return [deleteAction, editAction]
}



override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

    if(segue.identifier == "editSegue"){

        let selectedIndexPath = sender as! NSIndexPath
        let index = selectedIndexPath.row
        //if let indexPath: NSIndexPath = self.tableView.indexPathForCell(sender as! UITableViewCell) {

        //let btnEdit : UIButton = sender as! UIButton
        //let selectedIndex : Int = btnEdit.tag
        let viewController : InsertRecordViewController = segue.destinationViewController as! InsertRecordViewController
        viewController.isEdit = true
        viewController.userData = self.marrUserData.objectAtIndex(index) as! UserInfo

       // }

    }

}

I would like to know where I'm going wrong. Any idea guys?

Thanks in advance!!

score 1 · Answer 1 · answered Oct 08 '16 at 08:12

I had the same exact problem and I was able to solve it by adding a few extra things in the func prepareForSegue

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

if(segue.identifier == "editSegue"){

    let cell = sender as! UITableViewCell
    let Path = tableView.indexPathForCell(cell)
    let index = Path?.row
    let viewController : InsertRecordViewController = segue.destinationViewController as! InsertRecordViewController
    viewController.isEdit = true
    viewController.userData = self.marrUserData.objectAtIndex(index!) as! UserInfo

   // }

}

Now I realize this isn't exactly what you're trying to do. Because with my method you just click on the cell and it directs you immideatly to the path instead of sliding. I wanted to do the slide as well but I couldn't figure it out so I just with with the above method. Hope this helps :)

alessionossa · Accepted Answer · 2016-08-19T10:00:33.630

0

The line that cause the error is: let selectedIndexPath = sender as! NSIndexPath Sender is the SelectedCell, not the IndexPath!
Before the line self.performSegueWithIdentifier("editSegue", sender: self) set an property of the class (selectedIndexPath) to indexPath, and then you access this property from prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?).

Another method to do this can be found at: https://developer.apple.com/library/ios/referencelibrary/GettingStarted/DevelopiOSAppsSwift/Lesson9.html#//apple_ref/doc/uid/TP40015214-CH9-SW1

edited Aug 19 '16 at 10:00

answered Aug 19 '16 at 07:38

alessionossa

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Sorry, but how would that be useful in the func prepareForSegue?? – Jenita _Alice4Real Aug 19 '16 at 08:14
ThanQ! :) Any thoughts on how to access a UITableViewCell into my UserTableViewController? – Jenita _Alice4Real Aug 19 '16 at 09:57
What? I don't understand what you want to do – alessionossa Aug 19 '16 at 09:58
I mean i have group UItableViewCell which in-turn has a file named UserCell.swift. This file consists of an IBOutlet to my table prototype cell. How can i ever access this file from my UserTableViewController? – Jenita _Alice4Real Aug 19 '16 at 10:06
(If my answer to your main question has been useful please "accept" the answer by clicking the button on the left) – alessionossa Aug 19 '16 at 10:22
but that tutorial is just about the edit mode right? i want to be able to edit the contents stored in the sqlite database to be upadted through text view. – Jenita _Alice4Real Aug 19 '16 at 10:26
You cal access the properties doing a downcast to `UserCell` to a UITableViewCell variable – alessionossa Aug 19 '16 at 10:33
http://stackoverflow.com/q/34034438/6703153. my question is kinda similar – Jenita _Alice4Real Aug 19 '16 at 12:44
Follow the tutorial by Apple at the link in the answer. It will help you a lot – alessionossa Aug 19 '16 at 12:52

Swipe to edit sqlite database content in swift

2 Answers2