protected function getDbConfig( \Aimeos\MW\Config\Iface $conf )
	{
		$dbconfig = $conf->get( 'resource', array() );

		foreach( $dbconfig as $rname => $dbconf )
		{
			if( strncmp( $rname, 'db', 2 ) !== 0 ) {
				unset( $dbconfig[$rname] );
			}
		}

		return $dbconfig;
	}