更新时间:2023-02-12 12:16:35
Create your module folders and files
app/code/local/MyNameSpace/MyModule/etc/config.xml
app/code/local/MyNameSpace/MyModule/controllers/Checkout/CartController.php
app/etc/modules/MyNameSpace_All.xml
Edit /etc/config.xml and Create app/code/local/MyNameSpace/MyModule/etc/config.xml with the following content:
<?xml version="1.0"?>
<config>
<modules>
<MyNameSpace_MyModule>
<version>0.1.0</version>
</MyNameSpace_MyModule>
</modules>
<global>
<!-- This rewrite rule could be added to the database instead -->
<rewrite>
<!-- This is an identifier for your rewrite that should be unique -->
<!-- THIS IS THE CLASSNAME IN YOUR OWN CONTROLLER -->
<mynamespace_mymodule_checkout_cart>
<from><![CDATA[#^/checkout/cart/#]]></from>
<!--
- mymodule matches the router frontname below
- checkout_cart matches the path to your controller
Considering the router below, "/mymodule/checkout_cart/" will be
"translated" to "/MyNameSpace/MyModule/controllers/Checkout/CartController.php" (?)
-->
<to>/mymodule/checkout_cart/</to>
</mynamespace_mymodule_checkout_cart>
</rewrite>
</global>
<!--
If you want to overload an admin controller this tag should be <admin> instead,
or <adminhtml> if youre overloading such stuff (?)
-->
<frontend>
<routers>
<mynamespace_mymodule>
<!-- should be set to "admin" when overloading admin stuff (?) -->
<use>standard</use>
<args>
<module>MyNameSpace_MyModule</module>
<!-- This is used when "catching" the rewrite above -->
<frontName>mymodule</frontName>
</args>
</mynamespace_mymodule>
</routers>
</frontend>
Note: The above didn’t work for me when I override catalog/product controller. I had to use:
<from><![CDATA[#^catalog/product/#]]></from>
<to>mymodule/mycontroller</to>
(notice the missing leading slash)
Since Magento 1.3 you can simply add your module to the frontend router. Rewrites are not neccessary any more:
<?xml version="1.0" encoding="UTF-8"?>
<config>
<modules>
<MyNameSpace_MyModule>
<version>0.1.0</version>
</MyNameSpace_MyModule>
</modules>
<frontend>
<routers>
<checkout>
<args>
<modules>
<MyNameSpace_MyModule before="Mage_Checkout">MyNameSpace_MyModule</MyNameSpace_MyModule>
</modules>
</args>
</checkout>
</routers>
</frontend>
Please note that before="Mage_Checkout"
will load your controller first if available and fall back to Magento’s if not.
If the controller is in another folder, you’ll have to modify the code:app/code/local/MyNameSpace/MyModule/controllers/Checkout/CartController.php.
Replace
<MyNameSpace_MyModule before="Mage_Checkout">MyNameSpace_MyModule</MyNameSpace_MyModule>
with
<MyNameSpace_MyModule before="Mage_Checkout">MyNameSpace_MyModule_Checkout</MyNameSpace_MyModule>
Edit 'controllers/Checkout/CartController.php'
Create app/code/local/MyNameSpace/MyModule/controllers/Checkout/CartController.php
with the following content: (the only change to indexAction() is adding an error_log() call):
<?php
# Controllers are not autoloaded so we will have to do it manually:
require_once 'Mage/Checkout/controllers/CartController.php';
class MyNameSpace_MyModule_Checkout_CartController extends
Mage_Checkout_CartController
{
# Overloaded indexAction
public function indexAction() {
# Just to make sure
error_log('Yes, I did it!');
parent::indexAction();
}
}
Edit 'app/etc/modules/MyNameSpace_All.xml'
(This is to activate your module)
true local
Edit 'app/design/frontend/[myinterface]/[mytheme]/layout/checkout.xml'
and add the following to use the same update handle as before:
<mynamespace_mymodule_checkout_cart_index>
<update handle="checkout_cart_index"/>
</mynamespace_mymodule_checkout_cart_index>
(Note that these tags seem to be case sensitive. Try using all lowercase if this isn’t working for you)
[by Hendy: When I override catalog/product/view using the method described in this Wiki or here, I didn’t have to do the above. However, when using the 'cms way', I had to update the handle manually.]
The above item did not work for me (2009-02-19 by Jonathan M Carvalho)
I discovered that the file to change is app/design/frontend/[myinterface]/[mytheme]/layout/mymodule.xml
Add the following lines:
You need to be extra precise with the rewrite regular expression because errors are very hard to find.