function __construct($bt_db_host, $bt_db_name, $bt_db_user, $bt_db_pass, $bt_db_type = 'mysql', $bt_db_charset = 'UTF8')
{
$error =& singleton::get(__NAMESPACE__ . '\\error');
switch ($bt_db_type) {
case 'mysql':
if (array_search('mysql', parent::getAvailableDrivers()) === FALSE) {
$error->create(array('type' => 'sql_type_unsupported', 'message' => 'Unable to find the PDO MySQL database driver, which is required with the current database settings.'));
}
try {
$connection = parent::__construct('mysql:host=' . $bt_db_host . ';dbname=' . $bt_db_name, $bt_db_user, $bt_db_pass, array(PDO::ATTR_PERSISTENT => false));
} catch (\PDOException $e) {
$error->create(array('type' => 'sql_connect_error', 'message' => $e->getMessage()));
}
//set charset
parent::exec('SET CHARACTER SET ' . $bt_db_charset);
parent::exec('SET NAMES ' . $bt_db_charset);
return $connection;
break;
default:
$error->create(array('type' => 'sql_type_unsupported', 'message' => 'Database "' . $bt_db_type . '" is unsupported.'));
}
}
private function create()
{
$error =& singleton::get(__NAMESPACE__ . '\\error');
$query = "INSERT INTO {$this->tb}\n\t\t(session_id, session_start, session_start_utc, session_expire, session_expire_utc, ip_address, `site_id`)\n\t\tVALUES\n\t\t(:session_id, :session_start, :session_start_utc, :session_expire, :session_expire_utc, :ip_address, :site_id)\n\t\t";
$ip_address = ip_address();
$session_id = session_id();
$datetime = datetime();
$datetime_utc = datetime_utc();
$datetime_expire = datetime($this->life_time);
$datetime_expire_utc = datetime_utc($this->life_time);
$stmt = $this->db->prepare($query);
$stmt->bindParam(':session_id', $session_id);
$stmt->bindParam(':session_start', $datetime);
$stmt->bindParam(':session_start_utc', $datetime_utc);
$stmt->bindParam(':session_expire', $datetime_expire);
$stmt->bindParam(':session_expire_utc', $datetime_expire_utc);
$stmt->bindParam(':ip_address', $ip_address, database::PARAM_STR);
$stmt->bindParam(':site_id', $this->site_id, database::PARAM_INT);
try {
$stmt->execute();
} catch (\Exception $e) {
$error->create(array('type' => 'sql_execute_error', 'message' => $e->getMessage()));
}
return true;
}