Question

我希望只有2个产品属于同一类别才能比较。我正在开发一个健康产品网站。在健康产品类别链接下，我列出了所有产品。来自不同子类别的产品现在也具有可比性。例如。轮椅与血糖仪相当，没有意义。

我正在研究Magento CE 1.9。有没有人从事类似的要求？非常感谢任何帮助。谢谢！

在@ Manoj的回答之后编辑：

我添加了3个文件： app/etc/modules/mydir_All.xml

app/code/local/mydir/controllers/Product/CompareController.php  
app/code/local/mydir/etc/config.xml  
CompareController.php has only one method addAction() with the code suggested by @Manoj.

Here is the content of mydir_All.xml:
    <?xml version="1.0" ?>
<config>
    <modules>
        <mydir>
            <active>true</active>
            <codePool>local</codePool>
        </mydir>
    </modules>
</config>

Content of config.xml:

<?xml version="1.0"?>

<config>
<modules>
    <mydir>
    <version>0.1.0</version>
    </mydir>
</modules>
    <frontend>
        <routers>
            <tag>
                <args>
                    <modules>
                        <mydir before="Mage_Catalog">mydir</mydir>
                    </modules>
                </args>
            </tag>
        </routers>
    </frontend>
</config>

似乎没有任何改变。比较产品的效果与以前一样。

Answer 1

检查addAction中的app\code\core\Mage\Catalog\controllers\Product\CompareController.php。

您可以在添加产品检查之前覆盖CompareController和addAction，之前添加的产品属于同一类别。如果不删除以前的比较列表并添加新产品。在这里，您可以在比较列表产品catgory会话中保存当前类别ID。因此，您不需要每次为比较列表中添加的产品获取类别ID。

希望这有帮助!!

Answer 2

请参考以下代码，您需要覆盖app \ code \ core \ Mage \ Catalog \ controllers \ Product \ CompareController.php。

下面将提到addAction

public function addAction() {

        if (!$this->_validateFormKey()) {
            $this->_redirectReferer();
            return;
        }

        $productId = (int) $this->getRequest()->getParam('product');
        $product = Mage::getModel('catalog/product')->setStoreId(Mage::app()->getStore()->getId())->load($productId);

        $categoryIds = $product->getCategoryIds();

        $productPresent = false;
        $found = array();
        $compareProducts = Mage::helper('catalog/product_compare')->getItemCollection();

        $itemCount = Mage::helper('catalog/product_compare')->getItemCount();


        if($itemCount) {
            $compareProductId = $compareProducts->getFirstItem()->getId();
            $compareProductCollection = Mage::getModel('catalog/product')->setStoreId(Mage::app()->getStore()->getId())->load($compareProductId);
            $compareProductCats = $compareProductCollection->getCategoryIds();

            foreach($categoryIds as $num) {
                if (in_array($num,$compareProductCats)) {
                    $found[$num] = true;
                }
            }

            foreach($compareProducts as $products) {
                if($productId == $products->getId()) {
                    $productPresent = true;
                }
            }

            //Check if categories of products to be compared are matching
            if(empty($found)){
                Mage::getSingleton('catalog/session')->addError(
                    $this->__('You cannot compare %s with the items in the comparison list.', Mage::helper('core')->escapeHtml($product->getName()))
                );
                $this->_redirectReferer();
                return;
            }            

        }

        //Add product in comparison list
        if ($productId && (Mage::getSingleton('log/visitor')->getId() || Mage::getSingleton('customer/session')->isLoggedIn())) {

            if ($product->getId()/* && !$product->isSuper()*/) {
                Mage::getSingleton('catalog/product_compare_list')->addProduct($product);
                Mage::getSingleton('catalog/session')->addSuccess(
                    $this->__('The product %s has been added to the comparison list.', Mage::helper('core')->escapeHtml($product->getName()))
                );
                Mage::dispatchEvent('catalog_product_compare_add_product', array('product'=>$product));
            }

            Mage::helper('catalog/product_compare')->calculate();
        }

        $this->_redirectReferer();
    }

Answer 3

终于搞定了。发布这个对于那些与之斗争的人来说可能会派上用场。

这是/app/etc/modules/Company_Catalog.xml（惯例是使用带有Caps中首字母的Company_Module.xml）：

<?xml version="1.0" ?>
<config>
<modules>
    <Company_Catalog> <!-- notice Company_Module tag here also -->
        <active>true</active>
        <codePool>local</codePool>
    </Company_Catalog>
</modules>
</config>

这是/app/code/local/Company/Catalog/etc/config.xml：

<?xml version="1.0"?>

<config>
<modules>
<Company_Catalog> <!--notice the Company_Catalog tag here -->
<version>0.1.0</version>
</Company_Catalog>
</modules>
<frontend>
    <routers>
        <catalog> <!-- this has to be the module name -->
            <args>
                <modules>
                    <Company_Catalog before="Mage_Catalog">Company_Catalog</Company_Catalog> <!--this has to be in one line else newline/ spaces won't be parsed. Notice the before=Mage_ModuleName  -->
                </modules>
            </args>
        </catalog>
    </routers>
</frontend>
</config>

这是/app/code/local/Company/Catalog/controllers/Product/CompareController.php：

<?php

//notice that require_once is calling CompareController.php under the Product directory
    require_once(Mage::getModuleDir('controllers','Mage_Catalog').DS.'Product'.DS.'CompareController.php');

class Company_Catalog_Product_CompareController extends Mage_Catalog_Product_CompareController
{
public function addAction() {

    if (!$this->_validateFormKey()) {
        $this->_redirectReferer();
        return;
    }

    $productId = (int) $this->getRequest()->getParam('product');

    $product = Mage::getModel('catalog/product')->setStoreId(Mage::app()->getStore()->getId())->load($productId);

    $categoryIds = $product->getCategoryIds();

    $productPresent = false;
    $found = array();
    $compareProducts = Mage::helper('catalog/product_compare')->getItemCollection();

    $itemCount = Mage::helper('catalog/product_compare')->getItemCount();


    if($itemCount) {
        $compareProductId = $compareProducts->getFirstItem()->getId();
        $compareProductCollection = Mage::getModel('catalog/product')->setStoreId(Mage::app()->getStore()->getId())->load($compareProductId);
        $compareProductCats = $compareProductCollection->getCategoryIds();

        foreach($categoryIds as $num) {
            if (in_array($num,$compareProductCats)) {
                $found[$num] = true;
            }
        }

        foreach($compareProducts as $products) {
            if($productId == $products->getId()) {
                $productPresent = true;
            }
        }

        //Check if categories of products to be compared are matching
        if(empty($found)){
            Mage::getSingleton('catalog/session')->addError(
                $this->__('You cannot compare %s with the items in the comparison list. Please select products from the same category.', Mage::helper('core')->escapeHtml($product->getName()))
            );
            $this->_redirectReferer();
            return;
        }            

    }

    //Add product in comparison list
    if ($productId && (Mage::getSingleton('log/visitor')->getId() || Mage::getSingleton('customer/session')->isLoggedIn())) {

        if ($product->getId()/* && !$product->isSuper()*/) {
            Mage::getSingleton('catalog/product_compare_list')->addProduct($product);
            Mage::getSingleton('catalog/session')->addSuccess(
                $this->__('The product %s has been added to the comparison list.', Mage::helper('core')->escapeHtml($product->getName()))
            );
            Mage::dispatchEvent('catalog_product_compare_add_product', array('product'=>$product));
        }

        Mage::helper('catalog/product_compare')->calculate();
    }

    $this->_redirectReferer();
}
}

?>

我建议有人试图第一次重写模块并陷入困境：

添加Company_Module.xml后，请进入并检入系统 - >配置 - >高级 - >高级 - >禁用模块输出，确保新模块已启用。
系统 - ＆gt;工具 - ＆gt;编译 - ＆gt;禁用编译
系统 - ＆gt;缓存管理 - ＆gt;禁用所有缓存类型。
在新班级的第一行使用echo，以确保Magento正在读取您的新模块。
不确定这是否是正确的方法，但首先检查addAction（）逻辑是否正确，我制作了一份/app/code/core/Mage/Catalog/controllers/Product/CompareController.php;用我的新addAction（）替换原来的addAction（）并测试逻辑。一旦这个工作，我相信代码是正确的，模块没有被读取。然后一个接一个地攻击xmls（或标签:)。 Ofcourse也取代了核心的原始CompareController.php。

希望它有所帮助！

比较Magento 1.9中相同类别的产品

3 个答案: