Magento 不缓存警报
我已在我的 Magento 商店中安装了此扩展: http://www.magentocommerce.com/ magento-connect/catalogcache.html
它确实缩短了目录列表的页面加载时间。问题是警报不再显示。例如,如果有人订阅在产品重新有货时收到通知,则页面重新加载时会出现“警报已成功添加”消息。
有谁知道如何防止缓存警报?
这是扩展程序的代码:
class Netresearch_CatalogCache_Block_Product_View extends Mage_Catalog_Block_Product_View
/**
* replace this parent class by your inhereted version of th Product_View Block
* e.g. class Netresearch_CatalogCache_Block_Product extends MyNameSpace_MyModule_Catalog_Block_Product_View
*/
{
protected function _isCacheActive()
{
if(!Mage::getStoreConfig('catalog/frontend/cache_view')) {
return false;
}
/* if there are any messages dont read from cache to show them */
if(Mage::getSingleton('core/session')->getMessages(true)->count() > 0) {
return false;
}
return true;
}
public function getCacheLifetime()
{
if($this->_isCacheActive())
{
return false;
}
}
/*
protected function _loadCache()
{
$cache = parent::_loadCache();
Mage::debug($cache===false? "computed":"from cache");
return $cache;
}
*/
public function getCacheKey()
{
if(!$this->_isCacheActive()) {
parent::getCacheKey();
}
$_taxCalculator = Mage::getModel('tax/calculation');
$_customer = Mage::getSingleton('customer/session')->getCustomer();
$_product = $this->getProduct();
return 'ProductView'.
/* Create differnet caches for ...
* ... for different products */
$_product->getId().'_'.
/* ... for different stores */
Mage::App()->getStore()->getCode().'_'.
/* ... for different customer groups */
$_customer->getGroupId().'_'.
/* ADD CURRENCY CODE TO ID */
Mage::app()->getStore()->getCurrentCurrencyCode().'_'.
/* ... for different tax classes (related to customer and product) */
$_taxCalculator->getRate(
$_taxCalculator
->getRateRequest()
->setProductClassId($_product->getTaxClassId()
)
).'_'.
'';
}
public function getCacheTags()
{
if(!$this->_isCacheActive()) {
return parent::getCacheTags();
}
return array(
Mage_Catalog_Model_Product::CACHE_TAG,
Mage_Catalog_Model_Product::CACHE_TAG."_".$this->getProduct()->getId()
);
}
}
我在这里问了一个关于商店货币的类似问题并得到了解决方案: Magento - 不缓存货币
I had installed this extension on my Magento store: http://www.magentocommerce.com/magento-connect/catalogcache.html
It really improved the page load time for the catalog listings. The problem is alerts no longer show up. For example if someone subscribes to get notified when a product is back in stock the "Alert successfully added" message appear on page reload..
Does anyone know how I can prevent the alerts from caching?
Here is the code from the extension:
class Netresearch_CatalogCache_Block_Product_View extends Mage_Catalog_Block_Product_View
/**
* replace this parent class by your inhereted version of th Product_View Block
* e.g. class Netresearch_CatalogCache_Block_Product extends MyNameSpace_MyModule_Catalog_Block_Product_View
*/
{
protected function _isCacheActive()
{
if(!Mage::getStoreConfig('catalog/frontend/cache_view')) {
return false;
}
/* if there are any messages dont read from cache to show them */
if(Mage::getSingleton('core/session')->getMessages(true)->count() > 0) {
return false;
}
return true;
}
public function getCacheLifetime()
{
if($this->_isCacheActive())
{
return false;
}
}
/*
protected function _loadCache()
{
$cache = parent::_loadCache();
Mage::debug($cache===false? "computed":"from cache");
return $cache;
}
*/
public function getCacheKey()
{
if(!$this->_isCacheActive()) {
parent::getCacheKey();
}
$_taxCalculator = Mage::getModel('tax/calculation');
$_customer = Mage::getSingleton('customer/session')->getCustomer();
$_product = $this->getProduct();
return 'ProductView'.
/* Create differnet caches for ...
* ... for different products */
$_product->getId().'_'.
/* ... for different stores */
Mage::App()->getStore()->getCode().'_'.
/* ... for different customer groups */
$_customer->getGroupId().'_'.
/* ADD CURRENCY CODE TO ID */
Mage::app()->getStore()->getCurrentCurrencyCode().'_'.
/* ... for different tax classes (related to customer and product) */
$_taxCalculator->getRate(
$_taxCalculator
->getRateRequest()
->setProductClassId($_product->getTaxClassId()
)
).'_'.
'';
}
public function getCacheTags()
{
if(!$this->_isCacheActive()) {
return parent::getCacheTags();
}
return array(
Mage_Catalog_Model_Product::CACHE_TAG,
Mage_Catalog_Model_Product::CACHE_TAG."_".$this->getProduct()->getId()
);
}
}
I asked a similar question here about the store currency and got the solution:
Magento - Don't Cache Currency
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我不使用这个模块,但一直致力于 Magento 的缓存,并使用下面的代码来避免系统消息缓存。这可能对你有用?然后您可以尝试:
I don't use this module but have worked on caching for Magento and used the code below to avoid system messages caching. This may work for you ? You may then try :
似乎正在检查
Mage::getSingleton('core/session')
是否有可显示的消息,很可能新闻通讯模块将消息写入Mage::getSingleton('customer/session')
code> 所以也需要检查Seems it's checking
Mage::getSingleton('core/session')
for available messages to display, most likely newsletter module writes messages toMage::getSingleton('customer/session')
so it needs te be checked as well实际上,只要有人添加到购物车,我的缓存就会被刷新。经过进一步调查,我发现“Mage_Core_Block_Template”具有默认的 CACHE_GROUP = 'block_html',它是 Mage_Core_Block_Product_view 的父类。因此,在创建任何购物车时,block_html 都会从 magento 中清除,但这并不能解决问题。
我的理解是正确的还是我遗漏了什么?
Actually, as soon as any person adds to the cart, my cache is flushing out. On further investigation, I found out that "Mage_Core_Block_Template" has default CACHE_GROUP = 'block_html' which is the parent class for the Mage_Core_Block_Product_view. Hence on create of any cart, the block_html is flushed out from the magento and this does not solve the problem.
Am I correct in the understanding or am I missing something?