public function onDeleteManufacturer($oManufacturer)
    {
        $oDb = \OxidEsales\Eshop\Core\DatabaseProvider::getDb();
        $sIdQuoted = $oDb->quote($oManufacturer->getId());
        $oDb->execute("delete from oxseo where oxobjectid = $sIdQuoted and oxtype = 'oxmanufacturer'");
        $oDb->execute("delete from oxobject2seodata where oxobjectid = $sIdQuoted");
        $oDb->execute("delete from oxseohistory where oxobjectid = $sIdQuoted");
    }