/**
* Get a reference to the only instance of database class and connects to DB
*
* if the class has not been instantiated yet, this will also take
* care of that
*
* @static
* @return object Reference to the only instance of database class
*/
public static function instance()
{
if (self::$xoopsInstance !== false) {
return self::$xoopsInstance;
}
$allowWebChanges = defined('XOOPS_DB_PROXY') ? false : true;
if (substr(XOOPS_DB_TYPE, 0, 4) == 'pdo.') {
self::$xoopsInstance = new icms_db_legacy_PdoDatabase(self::$pdoInstance, $allowWebChanges);
} else {
if (defined('XOOPS_DB_ALTERNATIVE') && class_exists(XOOPS_DB_ALTERNATIVE)) {
$class = XOOPS_DB_ALTERNATIVE;
} else {
$class = 'icms_db_legacy_' . XOOPS_DB_TYPE;
$class .= $allowWebChanges ? '_Safe' : '_Proxy';
}
self::$xoopsInstance = new $class();
self::$xoopsInstance->setLogger(icms::$logger);
if (!self::$xoopsInstance->connect()) {
icms_loadLanguageFile('core', 'core');
trigger_error(_CORE_DB_NOTRACEDB, E_USER_ERROR);
}
}
self::$xoopsInstance->setPrefix(XOOPS_DB_PREFIX);
return self::$xoopsInstance;
}
public function __construct()
{
parent::__construct();
$this->_errors = icms_core_Debug::setDeprecated('icms_db_legacy_database', sprintf(_CORE_REMOVE_IN_VERSION, '1.4'));
}
public function __construct($connection, $allowWebChanges = false)
{
parent::__construct($connection, $allowWebChanges);
$this->pdo = $connection;
}
