Question

我需要显示父类别中的4个随机子类别。

我有以下代码，它使用随机产品图像显示所需父类别（ID = 4）的所有子类别： list.phtml \应用\设计\前端\ MyTheme的\默认\模板\目录\类别

<?php

//迭代商店中的所有类别 foreach（$ this-＆gt; getChildCategories（4）as $ _childCategory）：

   // If category is Active
   if($_childCategory->getIsActive()):

       // Load the actual category object for this category
       $cur_category = Mage::getModel('catalog/category')->load($_childCategory->getId());


       // Load a random product from this category
       $products = Mage::getResourceModel('catalog/product_collection')->addCategoryFilter($cur_category)->addAttributeToSelect('small_image');
       $products->getSelect()->order(new Zend_Db_Expr('RAND()'))->limit(1);

       $products->load();

       // This a bit of a fudge - there's only one element in the collection
       $_product = null;
       foreach ( $products as $_product ) {}        
       ?>

       <div style="float: left; padding-right: 30px; text-align: center;">
           <div class="linkimage"><p><a href="<?php echo $this->getCategoryUrl($_childCategory)?>">

       <?php
       if(isset($_product)):
       ?>
       <img src="<?php echo $this->helper('catalog/image')->init($_product, 'small_image')->resize(135, 135); ?>" alt="<?php echo $_childCategory->getName()?>" title="<?php echo $_childCategory->getName()?>" />
       <?php
       endif;
       ?>
           </div>
           <?php echo $_childCategory->getName()?></a></p>
       </div>
       <?php
   endif;

endforeach; ？＆GT;

并在navigation.php中 \应用\代码\本地\法师\目录\块

public function getChildCategories($categoryId) //inserted for random subcategories on category page
    {
          $category = Mage::getModel('catalog/category');
          if($category->checkId($categoryId) === false) {
              return false;
          }
        $layer = Mage::getSingleton('catalog/layer');
        $category->load($categoryId);
        $layer->setCurrentCategory($category);
        /* @var $category Mage_Catalog_Model_Category */
        $collection = Mage::getModel('catalog/category')->getCollection();
        /* @var $collection Mage_Catalog_Model_Resource_Eav_Mysql4_Category_Collection */
        $collection->addAttributeToSelect('url_key')
            ->addAttributeToSelect('name')
            ->addAttributeToSelect('is_anchor')
            ->addAttributeToFilter('is_active', 1)
            ->addIdFilter($category->getChildren())
            ->joinUrlRewrite()
            ->load();

        //$productCollection = Mage::getResourceModel('catalog/product_collection');
        //$layer->prepareProductCollection($productCollection);
        //$productCollection->addCountToCategories($collection);
        return $collection;
    }

如何将子类别限制为4并随机显示？谢谢！

Answer 1

要限制集合，您可以添加以下内容：

$collection->setPageSize(4);

要使您返回的记录随机化，这是其中一种可能性：

$collection->getSelect()
    ->order('rand()');

Magento：显示随机子类别

1 个答案: