Updating the Existed Entities And Attributes Core Data in Xcode below 8.0 and Xcode 8.0 & Later versions

Updating the Existed Core Data in Xcode below 8.0...

NSFetchRequest *request = [[NSFetchRequest alloc] init];
NSEntityDescription *sysCounters = [NSEntityDescription entityForName:@ProfileinManagedObjectContext:managedObjectContext];
[request setEntity:sysCounters];

NSPredicate *predicate = [NSPredicate predicateWithFormat:@(p_roomName = %@)",editProfileForString];
[request setPredicate:predicate];

NSError *error = nil;
NSArray *results = [managedObjectContext executeFetchRequest:request error:&error];
for (NSManagedObject *obj in results) {
[obj setValue:txtfDescription.text forKey:@p_description];
[obj setValue:txtfRoomName.text forKey:@p_roomName];
[obj setValue:txtfIp.text forKey:@p_ip];
[obj setValue:txtfPort.text forKey:@p_port];
[obj setValue:txtfUsername.text forKey:@p_username];
[obj setValue:txtfPassword.text forKey:@p_password];
[managedObjectContext save:&error];
}



//Updating the ExistedCore Data in Xcode 8.0 & Later versions

NSFetchRequest *request = [[NSFetchRequest alloc] init];

NSEntityDescription *data = [NSEntityDescription entityForName:@"Data" inManagedObjectContext:_appDelg.persistentContainer.viewContext];

    [request setEntity:data];

    

    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"(enterText = %@)",beforeUpdateString];

    [request setPredicate:predicate];

                              

    NSError *error = nil;

    NSArray *results = [_appDelg.persistentContainer.viewContext executeFetchRequest:request error:&error];

    for (NSManagedObject *tempObj in results) {

     [tempObj setValue:_editablePositionString forKey:@"enterText"];

                                  

//   [obj setValue:txtfRoomName.text forKey:@p_roomName];

//   [obj setValue:txtfIp.text forKey:@p_ip];

//   [obj setValue:txtfPort.text forKey:@p_port];

//   [obj setValue:txtfUsername.text forKey:@p_username];

//   [obj setValue:txtfPassword.text forKey:@p_password];

                                  

    [_appDelg.persistentContainer.viewContext save:&error];

       

  }