marcmatta

extension SampleController : NSFetchedResultsControllerDelegate {
    func controllerWillChangeContent(controller: NSFetchedResultsController) {
            if controller == feedFetchedResultsController {
                tableView.beginUpdates()
            }
    }
    
    func controllerDidChangeContent(controller: NSFetchedResultsController) {
        if controller == feedFetchedResultsController {
            tableView.endUpdates()