无法显示折扣金额

Question

在Magento的，我已经创建了一个模块按http://magento.ikantam.com/qa/how-add-discount-total-magento

但我无法显示折扣金额（见本http://d.pr/i/LSqW）

似乎取功能，$address->addTotal()是无法显示折扣金额。可能是什么问题？请帮忙。

function fetch(Mage_Sales_Model_Quote_Address $address) { 
//code... 
... 
.... 
$address->addTotal(array(
     'code' => 'Discount', 
     'title' => 'Discount', 
     'value' => $amt 
     //'value' => '18' hardocded the amount, still not working 
)); 

//code... 
..... 
return $address; 
} 

Answer 1

所以工作代码是

function fetch(Mage_Sales_Model_Quote_Address $address) { 
    //code... 
    ... 
    .... 
    $address->addTotal(array(
      'code' => 'discount', 
      'title' => 'discount', 
      'value' => $amt 
      //'value' => '18' hardocded the amount, still not working 
    )); 

    //code... 
    ..... 
    return $address; 
    }