在Magento中添加过滤器

Question

如何将此过滤器添加到此代码？  ================================================== ===============

$category_model = Mage::getModel('catalog/category')->load(55); 
$collection = Mage::getResourceModel('catalog/product_collection'); 
$collection->addCategoryFilter($category_model);

我想只显示库存产品，如何使用以下代码Magento

执行此操作

Answer 1

它适用于你In Stock Product Collection吗？

回答代码：

$category_model = Mage::getModel('catalog/category')->load(55); 
$productCollection = Mage::getResourceModel('catalog/product_collection');
$productCollection->addCategoryFilter($category_model);
Mage::getSingleton('cataloginventory/stock')
    ->addInStockFilterToCollection($productCollection);
echo "<pre>";print_r($productCollection->getData());