CoreData: error: Failed to call designated initializer on NSManagedObject class

Question

I have a little damn problem with CoreData. I want to insert a new Object, so I first have to create one. This is done by that code:

Challenges *newChallenge         


        

Answer 1

Others have already stated why its not working. Here is how you can cut down on the boilerplate and make your code more readable:

@implementation NSManagedObject(MyPrivateAdditions)

+ (id)insertNewObjectInContext:(NSManagedObjectContext *)context
{
    return [NSEntityDescription insertNewObjectForEntityForName:self.className inManagedObjectContext:context];
}

@end

now you can do:

Challenges *newChallenge = [Challenge insertNewObjectInContext:context];