如何从Magento中的子类别中获取所有产品？

Question

我正在寻找一种方法来检索包括其子类别在内的所有类别的产品并返回产品系列.

我知道我可以迭代类别来获取产品的ID并在视图中加载它们,但我希望得到一个产品集合,因为它目前在大多数类别/视图中完成.

有任何想法吗？

Answer 1

我通过在产品集合模型中实现addCategoriesFilter解决了这个问题,这里是补丁.修改后的代码要复制到local池中以允许更新到更新的版本.

@@ -103,6 +103,7 @@
      * Allowed filters
      *  store_id                int;
      *  category_id             int;
+     *  category_ids            array;
      *  category_is_anchor      int;
      *  visibility              array|int;
      *  website_ids             array|int;
@@ -567,6 +568,21 @@
     }

     /**
+     * Specify categories filter for product collection
+     *
+     * @param array $categories
+     * @return Mage_Catalog_Model_Resource_Eav_Mysql4_Product_Collection
+     */
+    public function addCategoriesFilter(array $categories)
+    {
+        $this->_productLimitationFilters['category_ids'] = $categories;
+
+        ($this->getStoreId() == 0)? $this->_applyZeroStoreProductLimitations() : $this->_applyProductLimitations();
+
+        return $this;
+    }
+
+    /**
      * Join minimal price attribute to result
      *
      * @return Mage_Catalog_Model_Resource_Eav_Mysql4_Product_Collection
@@ -1592,7 +1608,7 @@
         $this->_productLimitationJoinPrice();
         $filters = $this->_productLimitationFilters;

-        if (!isset($filters['category_id']) && !isset($filters['visibility'])) {
+        if (!isset($filters['category_id']) && !isset($filters['category_ids']) && !isset($filters['visibility'])) {
             return $this;
         }

@@ -1604,11 +1620,16 @@
             $conditions[] = $this->getConnection()
                 ->quoteInto('cat_index.visibility IN(?)', $filters['visibility']);
         }
-        $conditions[] = $this->getConnection()
-            ->quoteInto('cat_index.category_id=?', $filters['category_id']);
-        if (isset($filters['category_is_anchor'])) {
+
+        if (!isset($filters['category_ids'])) {
             $conditions[] = $this->getConnection()
-                ->quoteInto('cat_index.is_parent=?', $filters['category_is_anchor']);
+                ->quoteInto('cat_index.category_id=?', $filters['category_id']);
+            if (isset($filters['category_is_anchor'])) {
+                $conditions[] = $this->getConnection()
+                    ->quoteInto('cat_index.is_parent=?', $filters['category_is_anchor']);
+            }
+        } else {
+            $conditions[] = $this->getConnection()->quoteInto('cat_index.category_id IN(' . implode(',', $filters['category_ids']) . ')', "");
         }

         $joinCond = join(' AND ', $conditions);

用法:

$category = $layer->getCurrentCategory();
$categories = $category->getAllChildren(true);

$collection = Mage::getResourceModel('catalog/product_collection');
$collection->addCategoriesFilter($categories);