public static function GetInstance()
{
if (!isset(self::$instance)) {
$className = __CLASS__;
self::$instance = new $className();
// use the sqlite version for S_Drive, else use the mysql version
if (Config::GetInstance()->sdrive) {
include CARTREVISION . '/phphosted/database_sqlite.cls.php';
} else {
include CARTREVISION . '/phphosted/database_mysql.cls.php';
}
}
return self::$instance;
}
private function _Connect()
{
// connect to the database
if ($this->db === false) {
if (Config::GetInstance()->sdrive) {
$this->db = new DataAccessSQLite('save_sqlite');
// attach the transaction database if the form uses payments
if (Config::GetInstance()->UsePayments()) {
$dbfile = TransactionLogger::GetInstance()->GetSqliteFile();
if (empty($dbfile) || !file_exists($dbfile)) {
writeErrorLog('Tried to attach transaction log, but file is not defined or doesn\'t exist:', $dbfile);
} else {
$this->transacts = $this->db->AttachTransActions($dbfile);
}
}
} else {
$this->db = new DataAccessMySQL('save_database');
}
}
}
public function saveCartToDB()
{
$data = $this->getCartInstance()->exportCart();
$data['status'] = 'redirect';
$data['testmode'] = -1;
// get existing order reference in case this is an update instead of a new transaction
$transactid = Config::GetInstance()->GetSessionVariable(ORDERREFKEY);
if (!TransactionLogger::GetInstance()->saveData($data, $transactid)) {
// unset the session variable to ensure the cart scripts don't use empty values
Config::GetInstance()->UnsetSessionVariable(ORDERREFKEY);
Config::GetInstance()->UnsetSessionVariable(CC_FB_CARTID);
writeErrorLog('Failed to write transaction details to the database', TransactionLogger::GetInstance()->getError());
return false;
}
// add the transaction id to the session for the cart
Config::GetInstance()->SetSessionVariable(ORDERREFKEY, $transactid);
// store a copy for FB, avoids the need to including the cart when getting feedback from a gateway
Config::GetInstance()->SetSessionVariable(CC_FB_CARTID, $transactid);
return $transactid;
}
public function DropTransactions()
{
// nothing to do if the form doesn't have payments associated
if (!Config::GetInstance()->UsePayments()) {
return;
}
TransactionLogger::GetInstance()->dropData();
}