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我想创建上一个下一个按钮，用于在特定类别中从一种产品移动到另一种产品。

我在 view.phtml 中使用此代码，但现在它为 $search_parameter 提供了未定义的变量错误。

<?php // Previous and Next product links in product page

$_product = $this->getProduct();

if(!$_product->getCategoryIds())
return; // Don't show Previous and Next if product is not in any category

$cat_ids = $_product->getCategoryIds(); // get all categories where the product is located
$cat = Mage::getModel('catalog/category')->load( $cat_ids[0] ); // load first category, you should enhance this, it works for me

$order = Mage::getStoreConfig('catalog/frontend/default_sort_by');
$direction = 'asc'; // asc or desc

$category_products = $cat->getProductCollection()->addAttributeToSort($order, $direction);
$category_products->addAttributeToFilter('status',1); // 1 or 2
$category_products->addAttributeToFilter('visibility',4); // 1.2.3.4

$cat_prod_ids = $category_products->getAllIds(); // get all products from the category
$_product_id = $_product->getId();

$_pos = array_search($_product_id, $cat_prod_ids); // get position of current product
$_next_pos = $_pos+1;
$_prev_pos = $_pos-1;

// get the next product url
if( isset($cat_prod_ids[$_next_pos]) ) {
$_next_prod = Mage::getModel('catalog/product')->load( $cat_prod_ids[$_next_pos] );
} else {
$_next_prod = Mage::getModel('catalog/product')->load( reset($cat_prod_ids) );
}
// get the previous product url
if( isset($cat_prod_ids[$_prev_pos]) ) {
$_prev_prod = Mage::getModel('catalog/product')->load( $cat_prod_ids[$_prev_pos] );
} else {
$_prev_prod = Mage::getModel('catalog/product')->load( end($cat_prod_ids) );
}
?>                



<div class="clear"></div>
 <!--PREVIOUS BUTTON NEXT BUTTON STARTS-->
 <div class="previousNext">

<?php if($_prev_prod != NULL): ?>
<a href="<?php print $_prev_prod->getUrlPath(); if($search_parameter):?>?search=1<?php endif;?>"><span style="margin-right: 270px;"><?php echo $this->__('<< PREVIOUS') ?></span></a>
<?php endif; ?>
<?php if($_next_prod != NULL): ?>
<a href="<?php print $_next_prod->getUrlPath(); if($search_parameter):?>?search=1<?php endif;?>"><span style="margin-left: 270px;"><?php echo $this->__('NEXT >>') ?></span></a>
<?php endif; ?>

</div>
<!--PREVIOUS BUTTON NEXT BUTTON ENDS-->
<div class="clear"></div>
4

1 回答 1

-2

嘿终于让上面的代码在我的网站上工作了..

以下是遵循的步骤：

第 1 步：添加产品时，请确保每个产品仅添加到一个类别中。超过一个类别的产品，此代码不起作用。换句话说，如果您要添加产品以表示 Cat1 > Subcat1 > subsubcat2，请确保仅将其添加到 subsubcat2。然后，您将能够在该子子猫中移动下一个上一个。

STEP2：打开view.phtml，添加如下代码：

<?php // Previous and Next product links in product page

$_product = $this->getProduct();


if(!$_product->getCategoryIds())
return; // Don't show Previous and Next if product is not in any category

$cat_ids = $_product->getCategoryIds(); // get all categories where the product is   located
$cat = Mage::getModel('catalog/category')->load( $cat_ids[0] ); // load first category, you should enhance this, it works for me

$order = Mage::getStoreConfig('catalog/frontend/default_sort_by');
$direction = 'desc'; // asc or desc

$category_products = $cat->getProductCollection()->addAttributeToSort($order,   $direction);
$category_products->addAttributeToFilter('status',1); // 1 or 2
$category_products->addAttributeToFilter('visibility',4); // 1.2.3.4

$cat_prod_ids = $category_products->getAllIds(); // get all products from the category
$_product_id = $_product->getId();

$_pos = array_search($_product_id, $cat_prod_ids); // get position of current product
$_next_pos = $_pos+1;
$_prev_pos = $_pos-1;

// get the next product url
if( isset($cat_prod_ids[$_next_pos]) ) {
$_next_prod = Mage::getModel('catalog/product')->load( $cat_prod_ids[$_next_pos] );
} else {
$_next_prod = Mage::getModel('catalog/product')->load( reset($cat_prod_ids) );
}
// get the previous product url
if( isset($cat_prod_ids[$_prev_pos]) ) {
$_prev_prod = Mage::getModel('catalog/product')->load( $cat_prod_ids[$_prev_pos] );
} else {
$_prev_prod = Mage::getModel('catalog/product')->load( end($cat_prod_ids) );
}
?>

STEP3：添加PREVIOS和NEXT按钮代码

 <!--PREVIOUS BUTTON NEXT BUTTON STARTS-->
 <div class="previousNext">

<?php if($_prev_prod != NULL): ?>
<a href="<?php print $_prev_prod->getUrlPath();?>"><span style="margin-right: 270px;"><?php echo $this->__('<< PREVIOUS') ?></span></a>
<?php endif; ?>
<?php if($_next_prod != NULL): ?>
<a href="<?php print $_next_prod->getUrlPath();?>"><span style="margin-left: 270px;"><?php echo $this->__('NEXT >>') ?></span></a>
<?php endif; ?>

</div>
<!--PREVIOUS BUTTON NEXT BUTTON ENDS-->

STEP4：给链接添加css样式

<style>
.previousNext {width: 100%; height: 20px; text-align: right;  }
.previousNext a:link {font-size: 12px; color:#ffffff; font-weight: bold; text-decoration: none}
.previousNext a:visited {font-size: 12px; color:#ffffff; font-weight: bold; text-decoration: none}
.previousNext a:hover {font-size: 12px; color:#ff9900; font-weight: bold; text-decoration: underline}
.previousNext a:active {font-size: 12px; color:#ffffff; font-weight: bold; text-decoration: none}
</style>

将前面的 next 按钮理想地放置在 product-essential div 内（默认模板）

您的下一个或上一个项目已准备就绪...

希望这可以帮助...

于 2012-07-28T14:49:18.830 回答