Signing Up Parse User with Swift 1.2

Question

I use the signing up feature of Parse.com just as describe here. Here's my code:

 user.signUpInBackgroundWithBlock {
    (succeeded: Bool!, error: NSError!) -> Void in
    if error == nil {
      // Hooray! Let them use the app now.
    } else {
      let errorString = error.userInfo["error"] as NSString
      // Show the errorString somewhere and let the user try again.
    }
  }
}

Unfortunately, I've updated my project from swift 1.1 to swift 1.2 and get the following compiler error:

Function signature '(Bool!, NSError!)->void is not compatible with excepted type '@objc_block (Bool,NSError!)->Void'

it's on the following line:

user.signUpInBackgroundWithBlock {
        (succeeded: Bool!, error: NSError!) -> Void in

Does anybody know how can I fox that ? Thanks !

siegy22 · Accepted Answer · 2015-04-09 09:15:03Z

7

Your succeeded variable is a 'Bool!' but what the block returns is a 'Bool' (without exclamation mark).

The solution would be:

user.signUpInBackgroundWithBlock {
    (succeeded: Bool, error: NSError!) -> Void in
    if error == nil {
      // Hooray! Let them use the app now.
    } else {
      let errorString = error.userInfo["error"] as NSString
      // Show the errorString somewhere and let the user try again.
    }
  }
}

Too see more about optionals go to the apple doc

answered Apr 9, 2015 at 9:15

siegy22

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Comments

TheRealRonDez · Accepted Answer · 2015-04-11 16:26:29Z

2

I had the same problem with save in background with block. It looks like parse returns a "Bool not a Bool!"...however error is an NSError? unless you "!" it.

something.saveInBackgroundWithBlock {
            (succeeded: Bool, error: NSError?) -> Void in

code
}

answered Apr 11, 2015 at 16:26

TheRealRonDez

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1 Comment

Skynext Over a year ago

Have you tried: something.saveInBackgroundWithBlock { (succeeded: Bool, error: NSError!) -> Void in indeed ?

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