獲取已刪除類別的ID [Magento]

Question

如何從Observer獲取已刪除類別的ID？

config.xml中標記

<adminhtml> 
    <events> 
     <catalog_category_delete_after> 
      <observers> 
       <my_module> 
        <type>singleton</type> 
        <class>my_module/observer</class> 
        <method>onCategoryDeleteAfter</method> 
       </my_module> 
      </observers> 
     </catalog_category_delete_after> 
    </events> 
</adminhtml> 

觀察代碼想是這樣的：

class My_Module_Model_Observer 
{ 
    public function onCategoryDeleteAfter() {  
     #do something with deleted category id 
    } 
} 

Answer 1

使用通過$觀測變量。

class My_Module_Model_Observer 
{ 
    public function onCategoryDeleteAfter($observer) { 
     $observer->getEvent()->getCategory(); 
    } 
}