public function create_new($name, $location, $url)
{
# compute md5 sum of the data file
$md5 = md5_file($location);
# sign the md5 hash
$sig = generate_signature($md5);
# insert into database
$name = mysql_escape_string($name);
mysql_query("insert into file (name, md5, sig, url) " . "values(\"{$name}\", \"{$md5}\", \"{$sig}\", \"{$url}\")") or die("query to insert new file failed: " . mysql_error());
# return the object
$new_id = mysql_insert_id();
return FlashFile::load_from_id($new_id);
}
