protected function getOrderBaseItems( array $items )
	{
		$ids = [];

		foreach( $items as $item ) {
			$ids[] = $item->getBaseId();
		}

		$manager = \Aimeos\MShop::create( $this->getContext(), 'order/base' );

		$search = $manager->createSearch()->setSlice( 0, count( $ids ) );
		$search->setConditions( $search->compare( '==', 'order.base.id', $ids ) );

		return $manager->searchItems( $search );
	}