Convert Managed Object to Data object

Question

How do I convert my NSManagedObject to NSData object?

I'm new to Core Data and the Multipeer Connectivity Framework.

I need to transfer data between 2 devices via the Multipeer Connectivity Framework. I understand that I cannot simply transfer via MPC since it requires an NSData object.

Are there any third-party libraries that provides such function?

Answer 1

I think NSCoding is not such a good idea here. The reason is that the objects will not be the same on two different devices due to their internal managed object IDs as well as a myriad of other possible problems that can occur in unexpected syncing scenarios.

I would strongly recommend to take the trouble and convert your object into a NSDictionary type and then use the standard NSData APIs on the dictionary (or an array of dictionaries).