magento ajax获取tag商品

Magento的tag是点击后，有一个tag关联商品的list页面。客户需要在商品详情页面product view中点击tag使用ajax直接显示商品。

首先我们需要写个小插件，为ajax提供数据

Controller的参考代码如下：

$tagId = $this->getRequest()->getParam('tagId');
        $tag = Mage::getModel('tag/tag')->load($tagId);

        if (!$tag->getId() || !$tag->isAvailableInStore()) {
            $this->_forward('404');
            return;
        }
        $page_size = 15;
        $page = 1;
        /* $tagModel = Mage::getModel('tag/tag');
          $productCollection = $tagModel->getEntityCollection()
          ->addAttributeToSelect(Mage::getSingleton('catalog/config')->getProductAttributes())
          ->addTagFilter($tagId)
          ->addStoreFilter(Mage::app()->getStore()->getId())
          ->addMinimalPrice()
          ->addUrlRewrite()
          ->setActiveFilter()
          ->setPageSize($page_size)
          ->setCurPage($page);
          Mage::getSingleton('catalog/product_status')->addSaleableFilterToCollection($productCollection);
          Mage::getSingleton('catalog/product_visibility')->addVisibleInSiteFilterToCollection($productCollection);
         */
        $productIds = $tag->getRelatedProductIds();
        $productCollection = Mage::getModel('catalog/product')->getCollection()
                ->setStoreId($storeId)
                ->addAttributeToSelect('*')
                ->addFieldToFilter('entity_id', $productIds)
                ->setPageSize($page_size)
                ->setCurPage($page);

        $html = '';
        foreach ($productCollection as $product) {  //to get all product list
            $html .= '<div class="item">';
            //START
            $p_url = $product->getProductUrl();
            $p_name = $product->getName();
            $p_img_url = Mage::helper('catalog/image')->init($product, 'small_image')->constrainOnly(true)->keepAspectRatio(true)->keepFrame(false)->resize(200, null);
            $p_final_price = Mage::helper('core')->currency($product->getFinalPrice(), true, false);

            $html .='<a class="product-image" href="' . $p_url . '"><img src="' . $p_img_url . '" width="200" /></a>';
            $html .='<h2 class="product-name" class="product-name"><a href="' . $p_url . '">' . $p_name . '</a></h2>';
            $html .='<div class="price-box"><span class="regular-price"><span class="price">' . $p_final_price . '</span></span></div>';
            //END
            $html.='</div>';
        }

        //var_dump($productCollection);
        echo $html;

模板文件中的ajax获取Controller返回商品信息的参考代码如下

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