Why does this keep returning error "Object not found" from Heroku/Parse in swift? - swift

Question

I am trying to delete the row where username = usernameSelected from the Heroku/Parse server. Username selected is not nil and does exist on the server. Nothing seem wrong at all, only the "Object not found" instead of deleting the whole row.
let query = PFQuery(className: "Requests")
query.whereKey("username", equalTo: usernameSelected)
query.limit = 1
query.findObjectsInBackgroundWithBlock({ (objects, error) in
if error != nil {
}else {
if let objects = objects {
for obj in objects {
obj.deleteInBackgroundWithBlock({ (success, error) in
activityIndicator.stopAnimating()
UIApplication.sharedApplication().endIgnoringInteractionEvents()
if error != nil {
self.alertDisplay("Error", message: error?.userInfo["error"] as! String)
}else {
self.alertDisplay("", message: "Styles Submitted..! Please wait for your next Style")
}
})
}
}
}
})

Answer 1

make sure you have read and write permissions for your class
the deleting could be failing because the ACL for the rows created in your class only have the read permission. To allow both read and write permissions, in your AppDelegate under method "didFinishLaunchingWithOptions" you will see lines
let defaultACL = PFACL();
// If you would like all objects to be private by default, remove this line.
defaultACL.getPublicReadAccess = true
add the line --- defaultACL.getPublicWriteAccess = true
this will help you create all rows with write permissions so that in future you can delete an object from the client side.