Duplicated Code.

NSNotificationCenter *nc;
nc = [NSNotificationCenter defaultCenter];
[nc removeObserver:self
name:NSManagedObjectContextObjectsDidChangeNotification
object:nil];
NSManagedObjectContext *moc = [self managedObjectContext];
[syncButton setTitle:@"Syncing..."];
NSString *dateText = (@"Last Sync : %d", [NSDate date]);
[syncDate setStringValue:dateText];
NSEntityDescription *entityDescription = [NSEntityDescription
entityForName:@"projects" inManagedObjectContext:moc];
NSFetchRequest *request = [[[NSFetchRequest alloc] init] autorelease];
[request setEntity:entityDescription];
 
NSError *error = nil;
NSArray *array = [moc executeFetchRequest:request error:&error];
if (array == nil)
{
NSAlert *anAlert = [NSAlert alertWithError:error];
[anAlert runModal];
}
NSArray *namesArray = [array valueForKey:@"name"];
NSPredicate *predicate = [CalCalendarStore taskPredicateWithCalendars:[[CalCalendarStore defaultCalendarStore] calendars]];
NSArray *tasksNo = [[CalCalendarStore defaultCalendarStore] tasksWithPredicate:predicate];
NSArray *tasks = [tasksNo valueForKey:@"title"];
NSMutableArray *namesNewArray = [NSMutableArray arrayWithArray:namesArray];
[namesNewArray removeObjectsInArray:tasks];
NSLog(@"%d", [namesNewArray count]);
NSInteger *popIndex = [calenderPopup indexOfSelectedItem];
 
//Load the array
CalCalendarStore *store = [CalCalendarStore defaultCalendarStore];
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES);
NSString *supportDirectory = [paths objectAtIndex:0];
NSString *fileName = [supportDirectory stringByAppendingPathComponent:@"oldtasks.plist"];
 
NSMutableArray *oldTasks = [[NSMutableArray alloc] initWithContentsOfFile:fileName];
[oldTasks removeObjectsInArray:namesArray];
NSLog(@"%d",[oldTasks count]);
//Use the content
NSPredicate* taskPredicate = [CalCalendarStore taskPredicateWithCalendars:[[CalCalendarStore defaultCalendarStore] calendars]];
NSArray* allTasks = [[CalCalendarStore defaultCalendarStore] tasksWithPredicate:taskPredicate];
 
// Get the calendar
CalCalendar *calendar = [[store calendars] objectAtIndex:popIndex];
// Note: you can change which calendar you're adding to by changing the index or by
// using CalCalendarStore's -calendarWithUID: method
 
// Loop, adding tasks
for(NSString *title in namesNewArray) {
// Create task
CalTask *task = [CalTask task];
task.title = title;
task.calendar = calendar;
 
// Save task
if(![[CalCalendarStore defaultCalendarStore] saveTask:task error:&error]) {
NSLog(@"Error");
// Diagnostic error handling
NSAlert *anAlert = [NSAlert alertWithError:error];
[anAlert runModal];
}
}
 
NSMutableArray *tasksNewArray = [NSMutableArray arrayWithArray:tasks];
[tasksNewArray removeObjectsInArray:namesArray];
NSLog(@"%d", [tasksNewArray count]);
for(NSString *title in tasksNewArray) {
NSManagedObjectContext *moc = [self managedObjectContext];
JGManagedObject *theParent =
        [NSEntityDescription insertNewObjectForEntityForName:@"projects"
                                      inManagedObjectContext:moc];
[theParent setValue:nil forKey:@"parent"];
// This is where you add the title from the string array
[theParent setValue:title forKey:@"name"];
[theParent setValue:[NSNumber numberWithInt:0] forKey:@"position"];
 
}
 
for(CalTask* task in allTasks)
if([oldTasks containsObject:task.title]) {
[store removeTask:task error:nil];
}
 
    // Create a predicate for an array of names.
    NSPredicate *mocPredicate = [NSPredicate predicateWithFormat:@"name IN %@", oldTasks];
    [request setPredicate:mocPredicate];
 
    NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"name" ascending:YES];
    [request setSortDescriptors:[NSArray arrayWithObject:sortDescriptor]];
 
    // Execute the fetch request put the results into array
    NSArray *resultArray = [moc executeFetchRequest:request error:&error];
    if (resultArray == nil)
    {
        // Diagnostic error handling
        NSAlert *anAlert = [NSAlert alertWithError:error];
        [anAlert runModal];
    }
 
    // Enumerate through the array deleting each object.
    // WARNING, this will delete everything in the array, so you may want to put more checks in before doing this.
    for (JGManagedObject *objectToDelete in resultArray ) {
        // Delete the object.
        [moc deleteObject:objectToDelete];
    }
//Save the array
[namesArray writeToFile:fileName atomically:YES];
[syncButton setTitle:@"Sync Now"];
NSLog(@"Sync Completed");
[nc addObserver:self
selector:@selector(sync:)
name:NSManagedObjectContextObjectsDidChangeNotification
object:nil];
}