How to calculate price by attributes?

Question

I created 2 new attribute and I want to use them to calculate price. I use this code but I don't know how to get the value of these attribute. Any ideas on the best way to do this? Thanks so much!

<?php
class GoIvvy_PriceFormula_Model_Observer
{
   public function calculateFinalPrice($observer)
   {
        $_product = $observer->getEvent()->getProduct();
        // $mount = ???
        // $per = ???
        $finalPrice = (100+$mount)*$per;
        $_product->setFinalPrice($finalPrice);
        return $this;
   }
   public function collectionFinalPrice($observer)
   {
       $collection = $observer->getEvent()->getCollection();
       foreach($collection as $_product){
        // $mount = ???
        // $per = ???
        $finalPrice = (100+$mount)*$per;
        $_product->setMinimalPrice($finalPrice)
                  ->setPrice($finalPrice)
                  ->setFinalPrice($finalPrice);
       }
     return $this; 
   }
}

when you want to calculate this price on product save or product cart — Amit Bera, Feb 09 '15 at 10:45
I want to calculate this price on product save and display it on homepage — tuanptit, Feb 09 '15 at 10:50

Amit Bera · Accepted Answer · 2015-02-09T11:05:23.137

1

you can do this by magento event observer.

Try an fire an observer on catalog_product_save_before/catalog_product__save_commit_after event.

$_product = $observer->getEvent()->getProduct();
 $mount = $_product->getData('yourattribute');
 $per = $_product->getData('perAttribute')
$finalPrice = (100+$mount)*$per;
$_product->setFinalPrice($finalPrice);

edited Feb 09 '15 at 11:05

answered Feb 09 '15 at 11:00

Amit Bera

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Thank you so much. It works when I click on product page, but the price on homepage didn't change. – tuanptit Feb 09 '15 at 11:29

How to calculate price by attributes?

1 Answers1