- (NSString*)checkDirectory:(NSString*)path {
NSError *error = nil;
BOOL isDir = YES;
NSString *string = [NSHomeDirectory() stringByAppendingPathComponent:[@"/Documents" stringByAppendingFormat:@"/%@/",path]];
if(![[NSFileManager defaultManager]fileExistsAtPath:string isDirectory:&isDir]){
    if (![[NSFileManager defaultManager]createDirectoryAtPath:string withIntermediateDirectories:NO attributes:nil error:&error]) {
        NSLog(@"Create directory error %@",error);
    }
}
return string;
}

/Reports/year2012/38week/

withIntermediateDirectories:YES