protected function addCoupon( \Aimeos\MW\View\Iface $view )
	{
		if( ( $coupon = $view->param( 'b_coupon' ) ) != '' )
		{
			\Aimeos\Controller\Frontend::create( $this->getContext(), 'basket' )->addCoupon( $coupon );
			$this->clearCached();
		}
	}