/**
* @param int $index
- * @param string[] $groups
+ * @param string[]|string $groups
* @return IDatabase
*/
private static function getDB( $index, $groups = [] ) {
- $lb = MediaWikiServices::getInstance()->getDBLoadBalancer();
-
- return $lb->getConnection( $index, $groups );
+ return MediaWikiServices::getInstance()
+ ->getDBLoadBalancer()
+ ->getConnectionRef( $index, $groups );
}
}