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在Magento后台删除产品时,默认不会删除产品的图片,如果长期不清理这些废弃的图片,会导致Media目录下的文件越来越多,浪费服务器空间,为了实现删除产品的同时删除图片,网络上常见的方法是修改Mage_Catalog_Model_Product的delete()方法:
把
- public function delete()
- {
- parent::delete();
- Mage::dispatchEvent($this->_eventPrefix.‘_delete_after_done‘, array($this->_eventObject=>$this));
- return $this;
- }
修改为
- public function delete()
- {
- parent::delete();
- Mage::dispatchEvent($this->_eventPrefix.‘_delete_after_done‘, array($this->_eventObject=>$this));
- foreach ($this->getMediaGallery(‘images‘) as $image) {
- $image_path = $this->getMediaConfig()->getMediaPath($image[‘file‘]);
- if (file_exists($image_path)) {
- @unlink($image_path);
- }
- }
- return $this;
- }
这个方法是通过重写Model的方法实现的,下面我们将采用事件触发的方法来实现,我们观察在delete()函数中触发了catalog_product_delete_after_done事件,因此我们可以写一个插件,当观察到这个事件时删除产品的图片。
1 新建模块
在/app/code/local/MagentoBoy/DeleteProductImages目录下新建一个模块MagentoBoy_DeleteProductImages,并添加模块文件:
/app/etc/modules/MagentoBoy_DeleteProductImages.xml
- <?xml version="1.0"?>
- <config>
- <modules>
- <MagentoBoy_DeleteProductImages>
- <active>true</active>
- <codePool>local</codePool>
- </MagentoBoy_DeleteProductImages>
- </modules>
- </config>
并添加配置文件:
/app/code/local/MagentoBoy/DeleteProductImages/etc/config.xml
- <?xml version="1.0"?>
- <config>
- <modules>
- <MagentoBoy_DeleteProductImages>
- <version>0.1.0</version>
- </MagentoBoy_DeleteProductImages>
- </modules>
- </config>
2 添加Observer
/app/code/local/MagentoBoy/DeleteProductImages/Model/Observer.php
- <?php
- class MagentoBoy_DeleteProductImages_Model_Observer
- {
- public function processProductAfterDeleteEvent(Varien_Event_Observer $observer)
- {
- $eventProduct = $observer->getEvent()->getProduct();
- if ($eventProduct && $eventProduct->getId()) {
- foreach ($eventProduct->getMediaGallery(‘images‘) as $image) {
- $image_path = $eventProduct->getMediaConfig()->getMediaPath($image[‘file‘]);
- if (file_exists($image_path)) {
- @unlink($image_path);
- }
- }
- }
- return $this;
- }
- }
并在config.xml中添加models和events
- <config>
- <global>
- <models>
- <deleteproductimages>
- <class>MagentoBoy_DeleteProductImages_Model</class>
- </deleteproductimages>
- </models>
- <events>
- <catalog_product_delete_after_done>
- <observers>
- <deleteproductimages>
- <class>deleteproductimages/observer</class>
- <method>processProductAfterDeleteEvent</method>
- </deleteproductimages>
- </observers>
- </catalog_product_delete_after_done>
- </events>
- </global>
- </config>
这样就实现了在Magento中删除产品同时删除图片的功能,使用事件触发的方式更为灵活,方便在多个模块中扩展功能。
Magento删除产品同时删除图片
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原文地址:http://www.cnblogs.com/focai/p/4202963.html