public static function getConnection()
{
if (self::$connection == null) {
$dbConfig = Rays::app()->getDbConfig();
self::$connection = mysql_connect($dbConfig['host'], $dbConfig['user'], $dbConfig['password']) or die(mysql_error());
mysql_select_db($dbConfig['db_name']) or die(mysql_error());
mysql_query("set names " . $dbConfig['charset']) or die(mysql_error());
}
return self::$connection;
}
