Magento - 使用循环将产品添加到购物车

Question

我收到来自外部站点的请求，其中包含一些产品 ID。 在我的模块中，我尝试加载产品并将其添加到购物车中。我用这段代码尝试过：

    public function indexAction() {
    $ids = explode(',', $this->getRequest()->getParam('products'));

    Mage::log('ADDING PRODUCTS');

    $cart = Mage::getModel('checkout/cart');
    $cart->init();

    $pModel = Mage::getSingleton('catalog/product');

    //$cart->addProductsByIDs($ids);

    foreach ($ids as $id) {

        Mage::log('Loading: ' . $id);

        $product = $pModel->load($id);

        Mage::log('Loaded: ' . $product->getId());

        try {
            $cart->addProduct($product, array('qty' => '1'));
        } catch (Exception $e) { 
            Mage::log($e);
            continue; 
        }
    }

    $cart->save();

    if ($this->getRequest()->isXmlHttpRequest()) {
        exit('1');
    }

    $this->_redirect('checkout/cart');
}

我可以在 system.log 中看到它正确加载了产品。但重定向后，我的购物车中的第二个产品出现了两次。第一个失踪了。使用 $cart->addProductsByIDs($ids) 效果很好，但我无法再影响产品的数量。

有人知道我做错了什么并给我提示吗？

谢谢

Answer 1

我遇到了同样的问题，我通过在每个循环中加载产品模型来修复它：

public function AddMultipleItemsAction() {
    $products = explode(',', $this->getRequest()->getParam('products'));
    $quantities = explode(',', $this->getRequest()->getParam('quantities'));
    $numProducts = count($products);
    $cart = $this->_getCart();
    for($i=0;$i<$numProducts;$i++) {
        $product_id = $products[$i];
        $quantity = $quantities[$i];
        if ($product_id == '') continue;
        if(!is_numeric($quantity) || $quantity <= 0) continue;
        $pModel = Mage::getModel('catalog/product')->load($product_id);
        if($pModel->getTypeId() == Mage_Catalog_Model_Product_Type::TYPE_SIMPLE) {
            try {
                $eventArgs = array(
                    'product' => $pModel,
                    'qty' => $quantity,
                    'additional_ids' => array(),
                    'request' => $this->getRequest(),
                    'response' => $this->getResponse(),
                );
                Mage::dispatchEvent('checkout_cart_before_add', $eventArgs);
                $cart->addProduct($pModel, array('product'=>$product_id,'qty' => $quantity));
                Mage::dispatchEvent('checkout_cart_after_add', $eventArgs);
                Mage::dispatchEvent('checkout_cart_add_product', array('product'=>$pModel));
                $message = $this->__('%s was successfully added to your shopping cart.', $pModel->getName());
                Mage::getSingleton('checkout/session')->addSuccess($message);
            } catch (Mage_Core_Exception $e) {
                if (Mage::getSingleton('checkout/session')->getUseNotice(true)) {
                    Mage::getSingleton('checkout/session')->addNotice($pModel->getName() . ': ' . $e->getMessage());
                }
                else {
                    Mage::getSingleton('checkout/session')->addError($pModel->getName() . ': ' . $e->getMessage());
                }
            } catch (Exception $e) {
                Mage::getSingleton('checkout/session')->addException($e, $this->__('Can not add item to shopping cart'));
            }
        }
    }
    $cart->save();
    $this->_getSession()->setCartWasUpdated(true);
    $this->_redirect('checkout/cart');
}

---

然后我有一个“将所有商品添加到购物车”按钮，该按钮执行以下 Javascript 代码：

<script type="text/javascript">
function addAllItemsToCart() {
    productsArr = new Array();
    quantitiesArr = new Array();
    $('#product-listing-table .qty').each(
        function (input, index) {
            productsArr[index] = encodeURIComponent(input.readAttribute('product_id'));
            quantitiesArr[index] = encodeURIComponent(input.value);
        }
    );
    var url = '/MyModule/Cart/AddMultipleItems/products/'+productsArr.join(',')+'/quantities/'+quantitiesArr.join(',')+'/';
    setLocation(url);
}

---

为了使其能够正常工作，我在数量文本框中添加了一个额外的 Product_id 属性，例如：

<input type="text" size="2" product_id="<?php echo $_product->getId();?>" name="productqty_<?php echo $_product->getId();?>" class="qty" />

整个产品列表位于 ID 为 product-listing-table 的 div 中

Answer 2

刚刚检查了我得到的一些自定义添加到购物车代码，并确认工作正常，我唯一的区别是：

$cart->addProduct($product, array(
    'qty'     => 1,
    'product' => $product->getId(),
    'uenc'    => Mage::helper('core')->urlEncode(Mage::helper('core/url')->getCurrentUrl())
));

// Also make sure we know that the cart was updated
Mage::getSingleton('checkout/session')->setCartWasUpdated(true);

也就是说，您的错误并不会让您听起来像您实际上在 这个区域。我无法想象会是这样，但是每次将产品添加到购物车时是否都需要保存购物车模型？值得一试。