static function GetTotalMoney($filter)
{
$sql = "SELECT SUM(Amount) AS TotalMoney FROM detail ";
$sql .= $filter->GetWhereClauseCommand();
$result = CDataManager::ExercuseQuery($sql);
$first_row = mysql_fetch_array($result);
return $first_row['TotalMoney'];
}
static function GetConnection()
{
if (!self::$connection) {
// open the connection
self::$connection = mysql_connect(Config::SERVER_NAME, Config::USERNAME, Config::PASSWORD);
if (!self::$connection) {
die('Could not connect: ' . mysql_error());
}
// pick the database to use
mysql_select_db(Config::DATABASE_NAME, self::$connection);
}
return self::$connection;
}
static function DropTable()
{
$sql = "DROP TABLE IF EXISTS setting";
return CDataManager::ExercuseQuery($sql);
}