NSCoreData - Textfield into float value

Asked Jul 16 '15 at 09:54

Active Jul 16 '15 at 10:09

Viewed 63 times

I am trying to add my textfield into the coredata as an float value, when user press a submit button. I have an error

Thread 1:EXC_BAD_ACCESS(code=1,address=0x1)

My attributes inside .xcdatamodel file and NSManagedObject class are set to type float.

 @IBOutlet weak var forceEntered: UITextField!
 @IBOutlet weak var stiffnessEntered: UITextField!


 @IBAction func submit(sender: AnyObject) {

        let appDel : AppDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
        let contxt : NSManagedObjectContext = appDel.managedObjectContext!
        let en = NSEntityDescription.entityForName("SpringVariables", inManagedObjectContext: contxt)
        var newItem = SpringModel(entity:en!,insertIntoManagedObjectContext: contxt)

        newItem.stiffness = (stiffnessEntered.text as NSString).floatValue //error message shows here.
        newItem.force = (forceEntered.text as NSString).floatValue


 }

edited Jul 16 '15 at 10:09

asked Jul 16 '15 at 09:54

Cherry_thia

try `NSString(string: stiffnessEntered.text).floatValue` – iRiziya Jul 16 '15 at 10:00
@FrequencyMatched same error occurs. – Cherry_thia Jul 16 '15 at 10:03
have a look at [this](http://stackoverflow.com/a/24088249) – iRiziya Jul 16 '15 at 10:05
`(stiffnessEntered.text as NSString).floatValue` works when using prepareforsegue to pass my data between views previously. It doesn't work now when i want to add it into CoreData. @FrequencyMatched – Cherry_thia Jul 16 '15 at 10:11
Would need to see ManagedObject Class for 'SpringVariables' entity and probably full stack-trace of error – Dave Roberts Jul 16 '15 at 10:34
You are getting a bad access so something is `nil` that you were not expecting to be `nil`. Everywhere you are forcing an entity you need to check for `nil` first. Something is unexpectedly `nil`. – Marcus S. Zarra Jul 16 '15 at 14:08
@MarcusS.Zarra Thanks guys. I found the problem is because i didn't reference the entity to the class in the datamodel. – Cherry_thia Jul 20 '15 at 01:25

NSCoreData - Textfield into float value

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