php - magento 事件不工作

Question

我试图观察在 _prepareForm() 方法中的 app/code/core/Mage/Adminhtml/Block/Promo/Quote/Edit/Tab/Actions.php 文件中调度的 adminhtml_block_salesrule_actions_prepareform 事件。但我不断收到错误消息，我不确定为什么？

Warning: Mage_Core_Model_App::dispatchEvent() [mage-core-model-app.dispatchevent]: Node no longer exists in /var/www/server/www.site.com/app/code/core/Mage/Core/Model/App.php on line 1249

这是我模块中 config.xml 的一部分 - 我没有做错什么吧？

  <adminhtml>
        <events>
            <adminhtml_block_salesrule_actions_prepareform>
                <shoppingcartrules>
                    <class>shoppingcartrules/observer</class>
                    <method>prepareForm</method>
                </shoppingcartrules>
            </adminhtml_block_salesrule_actions_prepareform>
        </events>
    </adminhtml>

Answer 1

我想通了...我的 XML 中缺少节点。

<adminhtml>
    <events>
        <adminhtml_block_salesrule_actions_prepareform>
            <observers>
                <shoppingcartrules>
                    <class>shoppingcartrules/observer</class>
                    <method>prepareForm</method>
                </shoppingcartrules>
            </observers>
        </adminhtml_block_salesrule_actions_prepareform>
    </events>
</adminhtml>