Magento – How to get total price for product with qty before adding to cart in Magento

grand-totalmagento-1.9pricerules

I have shopping cart promotion rules which gives discount for buying 4 products. This works fine on shopping cart page. I mean it applies discount and shows discounted price in TOTAL row. I want to show customer this discounted price on another page before he adds product to cart. How can I do it? Basically it is calculating price where product id and qty is given applying shopping cart price rules.

Best Answer

Try something like code below, it should work correctly for tier prices and catalog price rules.

    /* @var $item Mage_Sales_Model_Quote_Item */
    $item = Mage::getModel('sales/quote_item');
    $qty = 3;
    $product = /* load product you want to get price for */;
    $item->setProduct($product);
    $item->setQty($qty);
    $item->setQuote(/* get quote from checkout session */);
    $finalPrice = $product->getFinalPrice($item->getQty());
    $item->setPrice($finalPrice)
        ->setBaseOriginalPrice($finalPrice);
    $item->calcRowTotal();                

    $item->getRowTotal();

Related Solutions

Magento – Retrieving grainular discount information for multiple qty of one item ordered

As Fabian said, Magento does not save much information about what discounts have been applied how. In particular take a look at Mage_SalesRule_Model_Validator

The only information that is set is:

$item->setDiscountAmount($discountAmount);
$item->setBaseDiscountAmount($baseDiscountAmount);

$item->setOriginalDiscountAmount($originalDiscountAmount);
$item->setBaseOriginalDiscountAmount($baseOriginalDiscountAmount);
...
$item->setAppliedRuleIds(join(',',$appliedRuleIds));

One avenue worth exploring is this event:

Mage::dispatchEvent('salesrule_validator_process', array(
    'rule'    => $rule,
    'item'    => $item,
    'address' => $address,
    'quote'   => $quote,
    'qty'     => $qty,
    'result'  => $result,
));

since it has qty available which in your case should be the desired quantity. With the additional $item also being available you can add a custom column to the quote_item (and subsequently the order_item) to save this information. The big gotcha here is that one item can take part in multiple rules, so you would have to save the qty split by $rule->getId().

Magento – Buy one product, get one product half price

It is not possible by default in Magento as far as i know but it can be easily done if you observe this event salesrule_validator_process

Best Answer

Related Solutions

Magento – Retrieving grainular discount information for multiple qty of one item ordered

Magento – Buy one product, get one product half price

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