Delete a single row in Parse using Swift 3 - parse-platform

Question

I need some help! I can't seem to delete just a single row from Parse. I have the "Swipe to delete" figured out, however, when you try and delete something form the table, it doesn't do anything. I get no errors. Nothing gets deleted. This is my code.
override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
if editingStyle == .delete {
// delete from server
let myFeatherquery = PFQuery(className: "FeatherPosts")
myFeatherquery.whereKey("message", equalTo: (PFUser.current()?.objectId!)!)
myFeatherquery.findObjectsInBackground(block: { (objects, error) in
if error != nil {
print("THERE WAS AN ERROR")
}else{
for object in objects!{
self.messages.remove(at: indexPath.row)
object.deleteInBackground()
self.tableView.reloadData()
}
}
})
}
}
In short, I want to delete a post from the tableView and delete it on the parse side as well. If I change:
"myFeatherquery.whereKey("message", equalTo: (PFUser.current()?.objectId!)!)"
to
"myFeatherquery.whereKey("userid", equalTo: (PFUser.current()?.objectId!)!)"
it just deleted everything that the user has ever posted. Please help!

Answer 1

You dont need to query inside UITableViewCellEditingStyle becasue IndexPath is already established which one you want to delete.
Now I've added a few extra bit to this logic.
1:) You can slide the cell to view the delete button. Once clicked it will confirm if you want to delete.
2:) Once deleted a fade will take place. It will then refresh the tableView and delete the object in parse in the background.
FeatherPostsArray that you see I made is your array of objects you used in the tableView. In your numberOfRowsInSection you would have done a count on it.
So this is what it should be:
override func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath) -> [UITableViewRowAction]? {
var recClass = PFObject(className:"FeatherPosts")
recClass = self.FeatherPostsArray[(indexPath as NSIndexPath).row]
let deleteAction = UITableViewRowAction(style: .destructive, title: "Delete") { (action, indexPath) in
let alert = UIAlertController(title: "App Name",
message: "You sure you want to delete?",
preferredStyle: .alert)
let delete = UIAlertAction(title: "Delete", style: .default, handler: { (action) -> Void in
recClass.deleteInBackground {(success, error) -> Void in
if error != nil {
}}
self.FeatherPostsArray.remove(at: (indexPath as NSIndexPath).row)
tableView.deleteRows(at: [indexPath], with: .fade)
tableView.reloadData()
})
let cancel = UIAlertAction(title: "Cancel", style: .destructive, handler: { (action) -> Void in })
alert.addAction(delete)
alert.addAction(cancel)
self.present(alert, animated: true, completion: nil)
}
//This is nice if you want to add a edit button later
return [ deleteAction]
}
Let me know if you get stuck.