Sync.m

- (BOOL) isUpdatePending {
    NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectoryPath = [documentPaths objectAtIndex:0];
    
    NSString *filePath = [documentsDirectoryPath stringByAppendingPathComponent:@"updated.db"];
    
    NSFileManager *fileManager = [NSFileManager defaultManager];
    return [fileManager fileExistsAtPath:filePath];
}

- (BOOL) hasPerformedInitialSync {
    NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectoryPath = [documentPaths objectAtIndex:0];
    
    NSString *filePath = [documentsDirectoryPath stringByAppendingPathComponent:@"database.db"];
    
    NSFileManager *fileManager = [NSFileManager defaultManager];
    return [fileManager fileExistsAtPath:filePath];
}