Save entity

gistfile1.m

- (void)save
{

    Matter *matter = [NSEntityDescription insertNewObjectForEntityForName:@"Matter" inManagedObjectContext:[RKObjectManager sharedManager].managedObjectStore.mainQueueManagedObjectContext];
    
    matter.matterDescription = self.description.text;
    matter.displayNumber = @"1234-Testest";
    matter.status = @"Open";

    NSError *error;
    if(![[RKObjectManager sharedManager].managedObjectStore.mainQueueManagedObjectContext save:&error])
    {
        NSLog(@"Managed Object Context Error: %@", [error localizedDescription]);
    }
}