Magento 仅比较具有相同类别的产品

我只想比较那些父母相同的类别

比如说,， 用户可以将诺基亚手机与三星手机进行比较 但若用户想将诺基亚手机和鞋子进行比较，它将不允许对这些产品进行比较

非常感谢你的帮助

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提前感谢您

在app\code\core\Mage\Catalog\controllers\Product\CompareController.php\中进行如下更改

if ($product->getId() /* && !$product->isSuper() */ ) {
$categoryIds = $product->getCategoryIds();
if (is_array($categoryIds) and count($categoryIds) > 1) {
$cat = Mage::getModel('catalog/category')->load($categoryIds[2]);
if(!isset($_SESSION['compare']))
{
$_SESSION['compare']=$cat->getId();
$_SESSION['comparecount']=0;
}
if($cat->getId() == $_SESSION['compare'] /* || $cat->getId() == 13 ||$cat->getId() == 18 ||$cat->getId() == 35*/ ) ///come back here
{
$_SESSION['comparecount']++;
Mage::getSingleton('catalog/product_compare_list')->addProduct($product);
Mage::getSingleton('catalog/session')->addSuccess(
$this->__('The product %s has been added to comparison list.:)', Mage::helper('core')->escapeHtml($product->getName()))
);
Mage::dispatchEvent('catalog_product_compare_add_product', array('product'=>$product));
}else
{
Mage::getSingleton('catalog/session')->addSuccess(
$this->__('The product %s not possible to add in comparison list.:(', Mage::helper('core')->escapeHtml($product->getName()))
);

}
}}

//// Same file in function removeAction() after condition
if($item->getId()) {
$item->delete();

/// add the following lines
$_SESSION['comparecount']--;
if($_SESSION['comparecount']<1) { unset($_SESSION['comparecount']); unset($_SESSION['compare']); }

//// Same file in function clearAction() after try { $items->clear();

//// add the following lines
unset($_SESSION['compare']);

这就是所有的人…享受比较… 这是。喜欢比较