访问Download.php上的$ item-> getNumberOfDownloadsUsed（）函数

I need to get the number of downloads bought and used, that's two methods that are available on $item object. But I can't instance $item on the file that I'm working:

app/code/core/Mage/Downloadable/Helper/Download.php

On this file, I need to retrieve the number of boughts and used of the download purchased.

I'm also trying to get the order ID or at least the link hash to identify that number of boughts/used downloads with the unique id of the purchase.

For example, I try this:

Mage::getModel('downloadable/link_purchased_item')
            ->load($this->getOrderItem()->getOrder()->getId(), 'order_id');

But $this->getOrderItem() is not available on Download.php file. I was trying this:

Mage::getModel('downloadable/link_purchased_item')->getCollection()
            ->addFieldToFilter('order_item_id', $this->getOrderItem()->getId());

But obviously getOrderItem() is unavailable.

Fatal error: Call to undefined method Mage_Downloadable_Helper_Download::getOrderItem() in /[...]/app/code/core/Mage/Downloadable/Helper/Download.php on line 135

But I'm able to use the customer singleton to retrieve client data like this:

$cliente = Mage::getSingleton('customer/session')->getCustomer();

So on this file I'm able to access others methods, but I'm unable to get the following details:

• Number of downloads bought
• Number of downloads used
• Order ID or Link hash ID.

So please, I'm requesting how to get the current order instance and / or the current link instance, on the Download.php related with the file downloading.

Thank you!

You are doing it wrong, you can not get any object like this $this->getOrderItem() without set/declaring them. As you are trying to get order_id and item_id in the helper, which you are using on a custom page redirected from customer downloadable products. Here is what you have to do

Step - 1

From customer My Downloadable products, in the redirect url you have to pass that products order_id and item_id as parameter. You can get them from below code

$orderId = $_item->getPurchased()->getOrderId();
$itemId = $_item->getId();

Step -2

Now in your template file while using your helper function pass this order_id and item_id to method parameter. Like below code

$orderId = $this->getRequest()->getParam('order_param');
$itemId = $this->getRequest()->getParam('item_param');

//Your helper function
Mage::helper('your_helper')->yourMethod($orderId, $itemId);

Step - 3

In your helper file you can use below code

public function yourMethod($orderId, $itemId)
{
    $linkPurchasedItem = Mage::getModel('downloadable/link_purchased_item')
            ->load($orderItem, 'order_id');


    $LinkPurchaseOrderItemId = Mage::getModel('downloadable/link_purchased_item')->getCollection()
            ->addFieldToFilter('order_item_id', $itemId);
}

Note: Do not make any changes in core files, instead override them