Create package product in magento

Question

How can we create a package product in magento. For eg. A product is having 1g weight and base price = 10$ But when same product is purchased at a smaller quantity say 1 g * 10 pouch its price is not 10*10 = 100, but will be 90. Similarly if I have a new package under the same product of say 2g*10 its price will be 150 and not 200. I hope my question is understandable. Please comment if anything is unclear.

Think in a way, that i need a product something related to pharmaceuticals. And I have pouches with different weights of tablets. And a user can add both the pouches which are associate to a same product. Please help me in this condition Thanks

Answer 1

Really good link, But its Always better to share the code:

$productA = Mage::getModel('catalog/product')->load(Mage::app()->getRequest()->getParam('a_id'));

 $productB = Mage::getModel('catalog/product')->load(Mage::app()->getRequest()->getParam('b_id')); 
 $productA_price = ($productA->getPackageprice() > 0 ? $productA->getPackagePrice() : $productA->getFinalPrice());
 $productB_price = ($productB->getPackageprice() > 0 ? $productB->getPackagePrice() : $productB->getFinalPrice());

2) Check if package product already exists, if not create it!

Now load the package product based on the SKU that I know I’m going to make, if it doesn’t exist I will create the product and save.

Mage::getModel('catalog/product')->loadByAttribute('sku',$productA->getSku().'__'.$productB->getSku());

 if (!$package_product) { 4
 $package_product = Mage::getModel('catalog/product');
 $package_product
 ->setTypeId(Mage_Catalog_Model_Product_Type::TYPE_SIMPLE)
 ->setWebsiteIds(array(1, 2))
 ->setWeight(1)
 ->setStoreId(Mage::app()->getStore()->getId())
 ->setStatus(Mage_Catalog_Model_Product_Status::STATUS_ENABLED)
 ->setVisibility(Mage_Catalog_Model_Product_Visibility::VISIBILITY_NOT_VISIBLE)
 ->setTaxClassId(2)
 ->setAttributeSetId(15)
 ->setSku($productA->getSku().'__'.$productB->getSku())
 ->setName("PACKAGE DEAL: ".$productA->getName().' & '.$productB->getName())
 ->setPrice($productA_price + $productB_price)
 ->save();

3) Set stock data for package product

    $stockItem = Mage::getModel('cataloginventory/stock_item');
$stockItem->assignProduct($package_product);
$stockItem->setData('is_in_stock', 1);
$stockItem->setData('stock_id', 1);
$stockItem->setData('store_id', 1);
$stockItem->setData('manage_stock', 0);
$stockItem->setData('use_config_manage_stock', 0);
$stockItem->setData('min_sale_qty', 0);
$stockItem->setData('use_config_min_sale_qty', 1);
$stockItem->setData('max_sale_qty', 1000);
$stockItem->setData('use_config_max_sale_qty', 1);
$stockItem->save();

4) If package does exists, update the price

} else {

$package_product->setStoreId(Mage::app()->getStore()->getId());
$package_product->setPrice($productA_price + $productB_price)->save();

5) Add package product to cart

    $cart = Mage::getModel('checkout/cart')->init();
$cart->addProduct($package_product, array('qty' => 1));
$cart->save();
    Mage::getSingleton('checkout/session')->setCartWasUpdated(true);
$this->_redirect('checkout/cart');

6) Decrease individual product stock

 class Creare_Productpackages_Model_Observer
{
public function packageDecreaseStock($observer) {

$order = $observer['order'];

$items = $order->getAllVisibleItems();
foreach ($items as $itemid => $item){

$product = Mage::getModel('catalog/product')->load($item->getProductId());
if ($product->getAttributeSetId() == 15)
{
$qty = $item->getQtyToInvoice();
$skus = explode('__', $product->getSku());

foreach ($skus as $sku)
{
$_product = Mage::getModel('catalog/product')->loadByAttribute('sku', $sku);
$stocklevel = (int)Mage::getModel('cataloginventory/stock_item')->loadByProduct($_product)->getQty();
$newlevel = $stocklevel-($qty);
if ($newlevel > 0) { $instock = 1; } else { $instock = 0; }
$stockItem = Mage::getModel('cataloginventory/stock_item')->assignProduct($_product);
$stockItem->setData('is_in_stock', $instock);
$stockItem->setData('qty', $newlevel);
$stockItem->save();

}
}
}
}
}

Answer 2

As per your requriment please go to link:

http://www.blog.plazathemes.com/archives/1839