在Magento中添加控制器操作之前/之后的事件

Question

我在Magento有一个控制器如下:

#File: ./app/local/FilFact/Test/IndexController
class FilFact_Test_IndexController extends Mage_Core_Controller_Front_Action{
    public function indexAction(){
        $this->_testConfig();
    }
}

我需要添加两个事件:
before index action
after index action

我怎么能这样做？

Answer 1

这很简单,因为Mage_Core_Controller_Varien_Action基类提供了前/后调度事件.

如果你打开Mage_Core_Controller_Varien_Action类,你会发现两个方法:preDispatch()和postDispatch()

这些方法执行一些任务,最重要的是启动三个事件.

controller_action_(pre|post)dispatch
controller_action_(pre|post)dispatch_{{routeName}}
controller_action_(pre|post)dispatch_{{fullActionName}}

fullActionName是路由名称,控制器名称和操作名称,以"_"和全部小写分隔.(参见Mage_Core_Controller_Varien_Action :: getFullActionName以供参考)

/app/code/local/FilFact/Test/etc/config.xml

<?xml version="1.0"?>
<config>
    <modules>
        <FilFact_Test>
            <version>1.0.0</version>
        <FilFact_Test>
    </modules>
    <global>
        <models>
            <FilFact_Test>
                <class>FilFact_Test_Model</class>
            </FilFact_Test>
        </models>
    </global>
    <frontend>
        <routers>
            <filfact>
                <use>standard</use>
                <args>
                    <module>FilFact_Test</module>
                    <frontName>filfact</frontName>
                </args>
            </filfact>
        </routers>
        <events>
            <controller_action_predispatch_filfact_index_index>
                <observers>
                    <FilFact_Test>
                        <class>FilFact_Test/Observer</class>
                        <method>indexPreDispatch</method>
                    </FilFact_Test>
                </observers>
            </controller_action_predispatch_filfact_index_index>
            <controller_action_postdispatch_filfact_index_index>
                <observers>
                    <FilFact_Test>
                        <class>FilFact_Test/Observer</class>
                        <method>indexPostDispatch</method>
                    </FilFact_Test>
                </observers>
            </controller_action_postdispatch_filfact_index_index>
        </events>
    </frontend>
</config>

/app/code/local/FilFact/Test/Model/Observer.php

<?php
class FilFact_Test_Model_Observer
{
    public function indexPreDispatch(Varien_Event_Observer $observer)
    {
       // TODO: Your code
    }

    public function indexPostDispatch(Varien_Event_Observer $observer)
    {
       // TODO: Your code
    }
}