覆盖运输方式 - 我错过了什么

问题描述

我以前写过很多模块，但由于某种原因，我的运输模块不会覆盖现有的万磁王运输方式.允许吗?我在这里错过了什么?模块名称显示在配置区域的高级选项卡中，因此它正在加载，但什么也没有发生.任何提示?

I've written many many modules before but for some reason my shipping module won't override an exsiting Magneto shipping method. Is that allowed? What am I missing here? The module name shows up in the advanced tab of the configuration area, so it's getting loaded, but nothing is happening. Any hints?

代码

etc/modules/Ssi_Shipping.xml

etc/modules/Ssi_Shipping.xml

<?xml version="1.0"?>
<config>
    <modules>
        <Ssi_Shipping>
            <active>true</active>
            <codepool>local</codepool>
        </Ssi_Shipping>
    </modules>
</config>

local/Ssi/Shipping/etc.xml

local/Ssi/Shipping/etc.xml

<?xml version="1.0"?>
<config>
    <modules>
        <Ssi_Shipping>
            <version>0.1.0</version>
        </Ssi_Shipping>
    </modules>
    <global>
        <models>
            <shipping>
                <rewrite>
                    <carrier_tablerate>Ssi_Shipping_Model_Carrier_Tablerate</carrier_tablerate>
                </rewrite>

            </shipping>
        </models>
    </global>
</config>

local/Ssi/Shipping/Model/Carrier/Tablerate.php

local/Ssi/Shipping/Model/Carrier/Tablerate.php

<?php
class Ssi_Shipping_Model_Carrier_Tablerate 
    extends Mage_Shipping_Model_Carrier_Tablerate {

        public function isActive()
        {
            Mage::log("here! Ssi_Shipping_Model_Carrier_Tablerate");

            // check to see if it's disabled
            if (parent::isActive() == false)
                return false;

            // check in the shopping cart
            foreach( Mage::getSingleton('checkout/session')->getQuote()->getItemsCollection() as $item ){
                if ($item->getDeliveryFlag() == "test")
                    return true;
            }

            // if nothing is found then disable this option.
            return false;

        }


    }

推荐答案

在仔细研究这个之后，我发现覆盖传送控制器的唯一方法是在本地代码文件夹.然后我基本上可以调整代码.

After working through this one a bit, I found that the only way to override the shipping controller was to make a duplicate of the file (and directory structure) in the local code folder. Then I could basically tweak the code.

不知道为什么 Magento 似乎不允许标准覆盖这些传送功能，但至少有一个解决方法.

Not sure why Magento doesn't seem to allow the standard overriding of these shipping functions, but a least there is a work around.

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