Magento – How to Get Products by Stock Quantity

filterproduct

I have the following code:

umask(0);
Mage::app();
$category =new Mage_Catalog_Model_Category();
$category->load($cid);

if ($status == "2") {
    $products = Mage::getModel('catalog/product')->getCollection()
    ->addAttributeToSelect('*') 
    ->addFieldToFilter('status',Mage_Catalog_Model_Product_Status::STATUS_DISABLED);
    $products->load();
}

if ($status == "1") {
    $products = Mage::getModel('catalog/product')->getCollection()
    ->addAttributeToSelect('*');
    $products->load();  
}

I want to add a filter of stock qty to filter the products, I tried: 

    $products = Mage::getModel('catalog/product')->getCollection()
        ->addAttributeToSelect('*');
    **->addAttributeToFilter('qty', array("gt" => 0));**

But not succuessful, any ideas?

Best Answer

You need to create a join with the cataloginventory/stock_item table to get the stock qty for a product, you could use:

$collection = Mage::getModel('catalog/product')
     ->getCollection()
     ->addAttributeToSelect('*')
     ->joinField('qty',
         'cataloginventory/stock_item',
         'qty',
         'product_id=entity_id',
         '{{table}}.stock_id=1',
         'left'
     )->addAttributeToFilter('qty', array('gt' => 0));
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