Ok, ich folgte diesem Tutorial (https://www.raywenderlich.com/139322/firebase-tutorial-getting-started-2) zum Löschen von Zeilen in tableView mit Firebase, aber es scheint einfach nicht zu funktionieren. Mein Code wie folgt:Firebase + Swift Löschen von Zeilen in TableView
override func viewDidLoad() {
super.viewDidLoad()
configureDatabase()
}
func configureDatabase() {
self.ref = FIRDatabase.database().reference()
if let user = FIRAuth.auth()?.currentUser {
self.ref.child("mileage").queryOrderedByChild("user").queryEqualToValue(user.uid).observeEventType(.ChildAdded, withBlock: { (snapshot) in
self.mileageDatabase.insert(snapshot, atIndex: 0)
self.tableView.insertRowsAtIndexPaths([NSIndexPath(forRow: 0, inSection: 0)], withRowAnimation: .Automatic)
})
} else {
}
}
override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
if (editingStyle == UITableViewCellEditingStyle.Delete) {
let row = self.mileageDatabase[indexPath.row]
row.ref.removeValue()
self.tableView.deleteRowsAtIndexPaths([NSIndexPath(forRow: indexPath.row, inSection: 0)], withRowAnimation: .Automatic)
}
}
Es wirft den Fehler:
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid update: invalid number of rows in section 0. The number of rows contained in an existing section after the update (8) must be equal to the number of rows contained in that section before the update (8), plus or minus the number of rows inserted or deleted from that section (0 inserted, 1 deleted) and plus or minus the number of rows moved into or out of that section (0 moved in, 0 moved out).'
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