Unrecognized Selector count sent to an NSNumber

[EddyBorja]

While trying to query an average value during an NSManagedObject's awakeFromFetch and awakeFromInsert, I'm getting this error:

2015-08-10 22:07:10.077 PropertyHunter[29805:971191] -[NSDecimalNumber count]: unrecognized selector sent to instance 0x608000431260

The line of code:

[[[sharedContext ofType:@"Store"] where:@"location.zipcode = %@", self.zipcode] average:@"visits"];

I'm using this in a Mac OS X app. Any idea why this happens?

[martydill]

Hey, thanks for the bug report!

I was able to reproduce this with an OS X app. It looks like OS X apps use NSXMLStoreType for Core Data, and apparently, that causes some different behaviors when using NSExpressions. Seems like the bug occurs when using raw Core Data, even without involving ios-queryable.

Switching to NSSQLiteStoreType fixed the problem in my test app, but I'll try to find a proper solution that doesn't require doing that.

[EddyBorja]

Thanks for looking into it!

— Sent from Mailbox

On Mon, Aug 17, 2015 at 9:21 AM, Marty Dill [email protected] wrote:

Hey, thanks for the bug report! I was able to reproduce this with an OS X app. It looks like OS X apps use NSXMLStoreType for Core Data, and apparently, that causes some different behaviors when using NSExpressions. Seems like the bug occurs when using raw Core Data, even without involving ios-queryable.

Switching to NSSQLiteStoreType fixed the problem in my test app, but I'll try to find a proper solution that doesn't require doing that.

Reply to this email directly or view it on GitHub: https://github.com/martydill/ios-queryable/issues/6#issuecomment-131672336