swift parse query skip null column

Question

I'm doing a PFQuery to get uploaded file in column. How to get that file and if the column is null there's no file do something else ?

If the column is null i'm getting error message the query wont go well.

fatal error: unexpectedly found nil while unwrapping on Optional value

query.findObjectsInBackgroundWithBlock {
            (objects, error) -> Void in

            if error == nil
            {
                for object in objects! {
                    self.files.append(object.objectForKey("file") as! PFFile)     
                }

I want to get that file but if the column was null do something else ? how can i do that?

Could you post the exact error message to help other users? – Juzzbott Aug 27 '15 at 23:40 — Juzzbott, Aug 27 '15 at 23:40

score 0 · Accepted Answer · answered Aug 27 '15 at 19:47

0

Use optional unwrapping with if let file = ... as? PFFile {

} else {

}

answered Aug 27 '15 at 19:47

Kristijan Delivuk

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I've did that but i'm getting error : Pattern matching in a condition requires the 'case' keyword , Any help ? – Salah Aug 28 '15 at 14:03
are u using swift 2.0 or 1.2? – Kristijan Delivuk Aug 28 '15 at 15:38
in swift 2.0 error handling is introduced so u must catch all possible errors (for example make do loop with catch and handle all errors) -> related link: http://stackoverflow.com/questions/30720497/swift-do-try-catch-syntax – Kristijan Delivuk Aug 28 '15 at 18:43
There's no other way to do it ? – Salah Aug 28 '15 at 18:51
well in swift 2.0 no ... in < 2.0 u can use optional unwrapping for checking for nil values – Kristijan Delivuk Aug 28 '15 at 18:54

swift parse query skip null column

1 Answers1