Magento前台隐藏送货方式，但在后台保留

对于你们中的某些人，这可能是个惊喜，但是Magento不支持在前台禁止Magento方法但在后台保留。你也许可以做些调整配置来达到效果，但那不是100%正确的。虽然Magento支持“global/website/store”设置，在全球和网站级别，运输方法被打开或者关闭。在商店级别，你可以简单的编辑运输方式的title和其它东西，但你不能打开/关闭运输方式。

现在，想像下你Magento系统里只有一个网站，如果你在后台“Sales > Orders”点击“Create New Order”按钮。下面你将看到“please select a customer”来选择你想要创建订单的客户。但当你的Magento系统中有两个或更多网站时，你在后台“Sales > Orders”点击“Create New Order”按钮，下一个出来的就是“please select a website” ，之后才会看到“please select a customer”。这意味着Magento使用默认的网站或者你选择的网站来创建用户订单。无论哪种方式，它都从网站读取配置和运输数据。这意味着这种设置没办法在后台只显示某某运输方式……

我们如何绕过这点？简单，只需要重写Mage_Shipping_Model_Config和Mage_Sales_Model_Quote_Address。注意，这不一定是最好或者最优的方法，但却是一个可行的方法。

app/code/local/Mycompany/Myextension/etc/config.xml

<models>
    <shipping>
        <rewrite>
            <config>Mycompany_Myextension_Model_Shipping_Config</config>
        </rewrite>                
    </shipping>
    <sales>
        <rewrite>
            <quote_address>Mycompany_Myextension_Model_Sales_Quote_Address</quote_address>
        </rewrite>
    </sales>
</models>

app/code/local/Mycompany/Myextension/Model/Adminhtml/System/Config/Source/Shipping/Methods.php

<?php
 
class Mycompany_Myextension_Model_Adminhtml_System_Config_Source_Shipping_Methods 
{
    protected $_options;
 
    public function toOptionArray()
    {
        $carriers = Mage::getSingleton('shipping/config')->getAllCarriers();
 
        $carriersActive = Mage::getSingleton('shipping/config')->getActiveCarriers();
        $carriersActive = array_keys($carriersActive);
 
        if (!$this->_options) {
            foreach ($carriers as $carrier) {
                $carrierCode = $carrier->getId();
                $carrierTitle = Mage::getStoreConfig('carriers/'.$carrierCode.'/title', Mage::app()->getStore()->getId());
                $carrierTitle = trim($carrierTitle);
 
                if (empty($carrierTitle)) {
                    continue;
                }
 
                if (in_array($carrierCode, $carriersActive)) {
                    $carrierTitle = sprintf('%s (currently active)', $carrierTitle);
                } else {
                    $carrierTitle = sprintf('%s (currently inactive)', $carrierTitle);
                }
 
                $this->_options[] = array('value'=>$carrierCode, 'label'=>$carrierTitle);
            }
        }
 
        $options = $this->_options;
 
        array_unshift($options, array('value'=>'', 'label'=> ''));
 
        return $options;
    }
}

这个文件被systemxml的“source_model”定义调用

<fields>
    <frontend_hidden_methods>
        <label>Hide Shipping Methods on Frontend</label>
        <comment>If a shipping method has been enabled under its settings, you can choose to hide it on the frontend by selecting it here from the list. This way, the shipping method would be available from the admin area but not from the frontend.</comment>
        <frontend_type>multiselect</frontend_type>
        <source_model>mycompany_myextension/adminhtml_system_config_source_shipping_methods</source_model>
        <sort_order>2</sort_order>
        <show_in_default>1</show_in_default>
        <show_in_website>1</show_in_website>
        <show_in_store>1</show_in_store>
    </frontend_hidden_methods>
</fields>

注意！上面的system.xml只是部分的，只用于实际字段的配置定义。

app/code/local/Mycompany/Myextension/Helper/Data.php

<?php
 
class Mycompany_Myextension_Helper_Data extends Mage_Core_Helper_Abstract
{
    const CONFIG_PATH_HIDE_FRONTEND_SHIPPING_METHODS = 'some-path-to-system-xml-field';
 
    public function getHiddenFrontendShippingMethods()
    {
        $methods = Mage::getStoreConfig(self::CONFIG_PATH_HIDE_FRONTEND_SHIPPING_METHODS);
        $methods = explode(',', $methods);
 
        return $methods;
    }
}

app/code/local/Mycompany/Myextension/Model/Shipping/Config.php

<?php
 
class Mycompany_Myextension_Model_Shipping_Config extends Mage_Shipping_Model_Config
{
    public function getActiveCarriers($store = null)
    {
        $carriers = parent::getActiveCarriers($store);
 
        if (Mage::getDesign()->getArea() === Mage_Core_Model_App_Area::AREA_FRONTEND) {
 
            $carriersCodes = array_keys($carriers);
            $hiddenShippingMethods = Mage::helper('mycompany_myextension')->getHiddenFrontendShippingMethods();
 
            foreach ($carriersCodes as $carriersCode) {
                if (in_array($carriersCode, $hiddenShippingMethods)) {
                    unset($carriers[$carriersCode]);
                }
            }            
        }
 
        return $carriers;
    }
}

app/code/local/Mycompany/Myextension/Model/Sales/Quote/Address.php

<?php
 
class Mycompany_Myextension_Model_Sales_Quote_Address extends Mage_Sales_Model_Quote_Address
{
    public function getShippingRatesCollection()
    {
        parent::getShippingRatesCollection();
 
        $hiddenFrontendShippingMethods = Mage::helper('mycompany_myextension')->getHiddenFrontendShippingMethods();
 
        $removeRates = array();
 
        foreach ($this->_rates as $key => $rate) {
            if (in_array($rate->getCarrier(), $hiddenFrontendShippingMethods)) {
                $removeRates[] = $key;
            }   
        }
 
        foreach ($removeRates as $key) {
            $this->_rates->removeItemByKey($key);
        }
 
        return $this->_rates;
    }
}

基本上就是这样了。现在你的后台里有了多选框来选择特定的方法在前台隐藏后台保留。记住，运输方式必须是开启的，不要和启用/禁止“hide on frontend”相混淆。

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