Magento Local Module 会覆盖 Community Module

当magento的一个页面不存在时 会显示一个404页面，是在

System => Configure => Web => Default pages =>

Default No-route URL : cms/index/noRoute

CMS No Route Page : 404 page

1) 在 app/code/comunity下创建module

Voyageone

Cms

controllers

IndexController.php

etc

config.xml

IndexController.php

<?php

require_once Mage::getModuleDir('controllers', 'Mage_Cms').DS.'IndexController.php';

class Voyageone_Cms_IndexController extends Mage_Cms_IndexController

{

/**

* Render CMS 404 Not found page

*

* @param string $coreRoute

*/

public function noRouteAction($coreRoute = null)

{

mage :: log(Mage::helper('core/url')->getHomeUrl().' first');

Mage::app()->getFrontController()->getResponse()

->setRedirect(Mage::helper('core/url')->getHomeUrl())

->sendResponse();

}

}

config.xml

<?xml version="1.0"?>

<config>

<modules>

<Voyageone_Cms>

<version>0.1</version>

</Voyageone_Cms>

</modules>

<frontend>

<routers>

<cms>

<args>

<modules>

<Voyageone_Cms before="Mage_Cms">Voyageone_Cms</Voyageone_Cms>

</modules>

</args>

</cms>

</routers>

</frontend>

</config>

app/etc/module 创建Voyageone_Cms.xml

<?xml version="1.0"?>

<config>

<modules>

<Voyageone_Cms>

<active>true</active>

<codePool>community</codePool>

</Voyageone_Cms>

</modules>

</config>

当访问页面 http://localhost/magento/cms/index/noRoute时 会发现页面重定向到首页

2. 同样在

app/code/local 下新建module

app/code/local/Devicom

Cms

controllers

InderxController.php

etc

config.xml

InderController.php

<?php

require_once Mage::getModuleDir('controllers', 'Mage_Cms').DS.'IndexController.php';

class Devicom_Cms_IndexController extends Mage_Cms_IndexController

{

/**

* Render CMS 404 Not found page

*

* @param string $coreRoute

*/

public function noRouteAction($coreRoute = null)

{

mage :: log( Mage::getBaseUrl(). 'women/new-arrivals.html' ." second");

Mage::app()->getFrontController()->getResponse()

->setRedirect(Mage::getBaseUrl(). 'women/new-arrivals.html')

->sendResponse();

}

}

config.xml:

<?xml version="1.0"?>

<config>

<modules>

<Devicom_Cms>

<version>0.1</version>

</Devicom_Cms>

</modules>

<frontend>

<routers>

<cms>

<args>

<modules>

<Devicom_Cms before="Mage_Cms">Devicom_Cms</Devicom_Cms>

</modules>

</args>

</cms>

</routers>

</frontend>

</config>

app/etc/modules

Devicom_Cms.xml

<?xml version="1.0"?>

<config>

<modules>

<Devicom_Cms>

<active>true</active>

<codePool>local</codePool>

</Devicom_Cms>

</modules>

</config>

3. 当再次去访问页面http://localhost/magento/cms/index/noRoute时 显示的是 'women/new-arrivals.html‘

当查看system.log时 发现 first没有出现 而是second.

所以magento很聪明 知道哪个Module会被访问，而community下的CMS模块不在被执行。