Question

如何从容器中检索ProductId参数？

答案：你不要从容器中检索一个参数，但要从你的块中检索。我已经在堆栈上阅读了答案，但没有一个告诉我如何从容器中检索参数..

编辑：感谢答案，我重新回答了我的问题！下面的工作代码。

View.php：/ app / code / local / Stackoverflow / Testcase / Block

class Stackoverflow_Testcase_Block_View extends Mage_Core_Block_Template
{

public function getParameters() {


    if (Mage::registry('current_product')) { 

        $product_id = Mage::registry('current_product')->getId(); 

    } else { 

        $product_id = $this->getProductId(); 

    }

    //Make sure we are not cached

    echo "time:".time()."<br/>";

    //This variable will be visible after the second load because it must be cached first!
    //NOTE that you are not able to save variables with an underscore ;-)

    echo "test_var:".$this->getTestVar()."<br/>";

    return "product_id: ".$product_id;

}

public function getCacheKeyInfo()
{
    $info = parent::getCacheKeyInfo();
    if (Mage::registry('current_product'))
    {
        $info['product_id'] = Mage::registry('current_product')->getId();
    }

    $info['test_var'] = "first second third";

    return $info;
}


}

Testcase.php：/ app / code / local / Stackoverflow / Testcase / Model / Container

class Stackoverflow_Testcase_Model_Container_Testcase extends Enterprise_PageCache_Model_Container_Abstract { 



protected function _getIdentifier()
{
    return $this->_getCookieValue(Enterprise_PageCache_Model_Cookie::COOKIE_CUSTOMER, '');
}


protected function _getCacheId()
{
    return 'TESTCASE' . md5($this->_placeholder->getAttribute('cache_id') . ',' . $this->_placeholder->getAttribute('product_id')) . '_' . $this->_getIdentifier();
}


protected function _renderBlock()
{
    $blockClass = $this->_placeholder->getAttribute('block');
    $template = $this->_placeholder->getAttribute('template');

    $block = new $blockClass;
    $block->setTemplate($template)
        ->setProductId($this->_placeholder->getAttribute('product_id'))
        ->setTestVar($this->_placeholder->getAttribute('test_var'));



    return $block->toHtml();
}

protected function _saveCache($data, $id, $tags = array(), $lifetime = null) { return false; }  





}

testcase.phtml：app / design / frontend / xxx / default / template / stackoverflow

    $block_html = $this->getParameters();

    echo $block_html;

?>

Catalog.xml：app / design / frontend / ll / default / layout

`

    <label>Catalog Product View (Simple)</label>

    <reference name="product.info">

        <block type="catalog/product_view_type_simple" name="product.info.simple" as="product_type_data" template="catalog/product/view/type/default.phtml">

            <block type="core/text_list" name="product.info.simple.extra" as="product_type_data_extra" translate="label">

                <label>Product Extra Info</label>

            </block>

            <block type="testcase/view" name="testcase" as="testcase" template="stackoverflow/testcase.phtml"/>

        </block>

    </reference>

</PRODUCT_TYPE_simple>

`

default.phtml：app / design / frontend / xxx / default / template / catalog / product / view /

<?php echo $this->getChildHtml('testcase') ?>

下面的代码可能不相关但...... config.xml：/ app / code / local / Stackoverflow / Testcase / etc

<?xml version="1.0"?>
<config>
    <modules>
        <Stackoverflow_Testcase>
            <version>0.1.0</version>
        </Stackoverflow_Testcase>
    </modules>
    <global>
        <blocks>
            <testcase>
                <class>Stackoverflow_Testcase_Block</class>
            </testcase>
        </blocks>
    </global>
</config>

cache.xml：/ app / code / local / Stackoverflow / Testcase / etc

<?xml version="1.0" encoding="UTF-8"?>
<config>
    <placeholders>
        <stackoverflow_testcase>
            <block>testcase/view</block>
            <name>testcase</name>
            <placeholder>STACKOVERFLOW_TESTCASE</placeholder>
            <container>Stackoverflow_Testcase_Model_Container_Testcase</container>
            <cache_lifetime>1</cache_lifetime>
        </stackoverflow_testcase>
    </placeholders>
</config>

Stackoverflow_Testcase.xml：/ app / etc / modules

<?xml version="1.0"?>
<config>
    <modules>
        <Stackoverflow_Testcase>
            <active>true</active>
            <codePool>local</codePool>
        </Stackoverflow_Testcase>
    </modules>
</config>

谢谢，

马亭

Answer 1

以Enterprise_PageCache_Model_Container_Sidebar_Cart容器为例：

文件：应用程序/代码/核心/企业/页缓存/型号/容器/边栏/ Cart.php

$renders = $this->_placeholder->getAttribute('item_renders');

要访问容器中的变量，您需要将其添加到Block类中的cachekeyinfo：

文件：app / code / core / Mage / Checkout / Block / Cart / Sidebar.php

public function getCacheKeyInfo()
    {
        $cacheKeyInfo = parent::getCacheKeyInfo();
        $cacheKeyInfo['item_renders'] = $this->_serializeRenders();
        return $cacheKeyInfo;
    }

编辑

在你的容器中试试这个：

protected function _renderBlock()
    {
        $blockClass = $this->_placeholder->getAttribute('block');
        $template = $this->_placeholder->getAttribute('template');

        $block = new $blockClass;
        $block->setTemplate($template)
            ->setProductId($this->_placeholder->getAttribute('product_id'););
        return $block->toHtml();
    }

并在您的块中尝试此操作：

public function getCacheKeyInfo()
    {
        $cacheKeyInfo = parent::getCacheKeyInfo();
        $cacheKeyInfo['product_id'] = $this->getRequest()->getParam('ProductId');
        return $cacheKeyInfo;
    }

Magento缓存product_id

1 个答案: