Use Magento opConfig.reloadPrice() with jQuery and Custom options - php

Question

I am trying to use the Magento reloadPrice() with jQuery to refresh the price. I have a configurable product with custom options. Without jQuery, the SELECT code for the option is :
<select id="select_281" class=" required-entry product-custom-option" title="" name="options[281]" onchange="opConfig.reloadPrice()">
<option value="0"></option>
<option rel="1" price="0" value="275"></option>
<option rel="2" price="0" value="276"></option>
</select>
With jQuery I remove the Prototype onchange code and try to calculate the price for my option (say $50) :
jQuery('#select_281').removeAttr('onchange').change(function(){
//Price of the option to add to a basic price of the conf product
price = 50;
optionsPrice.changePrice('opConfig', price);
optionsPrice.reload();
});
Price of the configurable product: $150.
Add an option (SELECT): we add $50.
The new price $200 is displayed in the product page, But not in the cart page : the cart page displays just $150 which is not correct.
Someone can help?
Best regards,
COM.

Answer 1

The reloadPrice() cant change any price serverside.
So we solved this issue by using 2 observers : checkout_cart_product_add_after observer to change the price the first time the product is added to the cart, and checkout_cart_update_items_after observer to change the price for each item in the cart (when user click the "Modify cart" button on cart page).
The code here tested for configurable products with 2 custom options numberOfColors and engravingType. For each couple numberOfColors/engravingType we have tierprices stored in special MySQL table, we may change price with a custom price. Each simple product has its tierPrices.
<code>//checkout_cart_product_add_after observer
public function modifyPrice(Varien_Event_Observer $observer)
{
$item = $observer->getQuoteItem();
$item = ( $item->getParentItem() ? $item->getParentItem() : $item );
$productType = $product->getTypeID();
$price = 100;//Unit price of product without engraving, 100 for example
//Unit price with engraving, depending of 2 custom options of configurable product
if($productType == 'configurable'){
//get custom options of config here
.
.
$engravingPrice = 1.2;//Get unit price with engraving from a special MySQL table
$finalUnitPrice = $price + $engravingPrice;//Final custom price
//Modify the price
$item->setCustomPrice($finalUnitPrice);
$item->setOriginalCustomPrice($finalUnitPrice);
$item->getProduct()->setIsSuperMode(true);
}
}
//checkout_cart_update_items_after observer
public function modifyCartItems(Varien_Event_Observer $observer)
{
foreach ($observer->getCart()->getQuote()->getAllVisibleItems() as $item ) {
if ($item->getParentItem()) {$item = $item->getParentItem();}
$productType = $product->getTypeID();
$productType = $product->getTypeID();
$price = 100;//Unit price of product without engraving
//Unit price with engraving, depending of 2 custom options of configurable product
if($productType == 'configurable'){
.
.
$engravingPrice = 1.2;//Get unit price with engraving from a special MySQL table
$finalUnitPrice = $price + $engravingPrice;//Final custom price
//Modify the price for the item
$item->setCustomPrice($finalUnitPrice);
$item->setOriginalCustomPrice($finalUnitPrice);
$item->getProduct()->setIsSuperMode(true);
}
}
}</code>
But.....one problem remains : on the cart page, when user clicks the link "Edit" to edit the product in product page so he can change quantity, ...and click the "Update cart" button, this update button does not read the checkout_cart_product_add_after to refresh price.
Dont't know how to force this "Update cart" action to process the code in checkout_cart_product_add_after observer? Is this code executed just the first time the product is added to the cart?
Thanks.
COM