Question

我需要从productCollection中排除一个类别，但我不知道如何实现这一目标。

要求：

仅限可见产品
订购者：created_at DESC
排除类别ID 43
限制4（产品）

要检索我的收藏，请使用以下代码：

$collection = Mage::getResourceModel('catalog/product_collection')
                ->setVisibility(Mage::getSingleton('catalog/product_visibility')->getVisibleInCatalogIds());



$collection =  $this->_addProductAttributesAndPrices($collection)
                    ->addAttributeToSort('created_at', 'DESC')
                    ->setPageSize(4)
                    ->setCurPage(1);

这很好用，但我无法添加此过滤器：

->addFieldToFilter('category_id', array('nin' => array('43')))

我发现了这些类似的问题，但它们不会解决我的问题。

How to exclude a category from a magento getCollection

Magento - How do I exclude a category from product collection?

Answer 1

尝试以下代码：

$collection = Mage::getResourceModel('catalog/product_collection');         
$collection->addAttributeToFilter('status', 1); // Enable products
$collection->addAttributeToFilter('visibility', 4); // Visible products 
$collection->addAttributeToSort('created_at', 'DESC') // Order by created_at DESC
           ->setPageSize(4) // Number of products
           ->setCurPage(1); // set page size
$catId = 43; // category id to exclude
$collection->getSelect()->join(array('cats' => 'catalog_category_product'), 'cats.product_id = e.entity_id'); // Join with category on product/entiry id
$collection->getSelect()->where('cats.category_id!=?',$catId); // exclude category from collection

echo '<pre>';
echo $collection->getSelect(); // See sql query
print_r($collection->getData()); Print collection in array format

希望会有所帮助！

Answer 2

扩展Rajiv的答案，因为Martijn没有包括该组，一个完整的例子是：

$collection = Mage::getResourceModel('catalog/product_collection');         
$collection->addAttributeToFilter('status', 1); // Enable products
$collection->addAttributeToFilter('visibility', 4); // Visible products 
$collection->addAttributeToSort('created_at', 'DESC') // Order by created_at DESC
       ->setPageSize(4) // Number of products
       ->setCurPage(1); // set page size
$catId = 43; // category id to exclude
$collection->getSelect()->join(array('cats' => 'catalog_category_product'), 'cats.product_id =         e.entity_id'); // Join with category on product/entiry id
$collection->getSelect()->where('cats.category_id!=?',$catId); // exclude category from collection
$collection->getSelect()->group(array('e.entity_id')) // Group by e.entity_id to prevent Item with the same id already exists.. Exception

echo '<pre>';
echo $collection->getSelect(); // See sql query
print_r($collection->getData()); Print collection in array format

Magento产品系列不包括类别

2 个答案: