How to copy a file from resources to documents?

gistfile1.m

// From: http://stackoverflow.com/questions/4743317/iphone-how-to-copy-a-file-from-resources-to-documents
NSFileManager *fmngr = [[NSFileManager alloc] init];
NSString *filePath = [[NSBundle mainBundle] pathForResource:@"mydb.sqlite" ofType:nil];
NSError *error;
if(![fmngr copyItemAtPath:filePath toPath:[NSString stringWithFormat:@"%@/Documents/mydb.sqlite", NSHomeDirectory()] error:&error]) {
     // handle the error
     NSLog(@"Error creating the database: %@", [error description]);

}
[fmngr release];