问题描述

我使用了以下代码，但不适用于这种情况:

$_category_detail=Mage::registry('current_category');echo $_category_detail->getName();

得到致命错误:在/app/design/frontend/base/default/template/catalog/product/view.phtml中的非对象上调用成员函数getName()>

我们制作了一些过滤器并在 head.phtml 中使用以下提及的代码:

$is_product = Mage::registry('product');如果($is_product){if(is_object(Mage::registry('current_category'))){$category_name = Mage::registry('current_category')->getName();}else{ $category_name = "";}}

但这仅在您从类别转到产品时才有效.如果您直接访问产品页面，则不会显示任何内容

这是因为产品可以附加到多个类别.在您的情况下，当您访问从类别页面引用的产品页面时，您的会话具有类别信息.但是如果您直接访问产品页面，Magento 无法知道您来自哪个类别，因此无法显示特定类别，因为您的产品可以有多个类别.

但在您的情况下，如果您的产品只附加一个类别，您可以使用此代码，它显示产品的第一个类别名称；

 $categoryIds = $_product->getCategoryIds();如果(计数($categoryIds)){$firstCategoryId = $categoryIds[0];$_category = Mage::getModel('catalog/category')->load($firstCategoryId);echo $_category->getName();}

I used following codes but didn't work for this case:

$_category_detail=Mage::registry('current_category');
echo $_category_detail->getName();

got Fatal error: Call to a member function getName() on a non-object in /app/design/frontend/base/default/template/catalog/product/view.phtml

we make some filters and use below mention code in head.phtml:

$is_product = Mage::registry('product');

if($is_product){ 

  if(is_object(Mage::registry('current_category'))){ 
    $category_name = Mage::registry('current_category')->getName(); 
  }
  else{ $category_name = ""; }

}

But this only works if you go from a category to a product. If you visit the product page directly nothing is being displayed

It's because products can be attached to multiple categories. In your situation, when you visit a product page referred from a category page, your session has category information. But if you visit directly product page, Magento can not know which category you came from, so it can not show you a specific category, because your product can have multiple categories.

But in your situation, if your products are attached only one category, you can use this code, it shows first category name of product;

        $categoryIds = $_product->getCategoryIds();

        if(count($categoryIds) ){
            $firstCategoryId = $categoryIds[0];
            $_category = Mage::getModel('catalog/category')->load($firstCategoryId);

            echo $_category->getName();
        }