In this case,you can use magento event/observer.
Basically there are two events,by which you can change the cart price of that products:
checkout_cart_product_add_aftercheckout_cart_update_items_aftercheckout_cart_product_update_after
This 3 event is need because of:
Event1:checkout_cart_product_add_after
This event is fire when first time a product is cart for current session of current input values from frontend
Event2:checkout_cart_product_update_after
This event is fire when a current exiting cart item edited from edit link of cart item.
Event3:checkout_cart_update_items_after
This event is fire whenever cart items update from cart page.
As per as magento system, a cart item price change using setter functions setCustomPrice(), setOriginalCustomPrice of cart item Object.
Just like:
$EachCartitem->setCustomPrice($price);
$EachCartitem->setOriginalCustomPrice($price);
// Enable super mode on the product.
$EachCartitem->getProduct()->setIsSuperMode(true);
And using events fire an observer which is calculate price basic of your input fields.
Suppose: The radio button field name is My Checkbox and Text Box field Name is MyTestext.
Config.xml code like:
<global>
<models>
<magento65569>
<class>Stackexchange_Magento65569_Model</class>
</magento65569>
</models>
<events>
<checkout_cart_product_add_after> <!-- identifier of the event we want to catch -->
<observers>
<checkout_cart_product_add_after_handler> <!-- identifier of the event handler -->
<type>singleton</type> <!-- class method call type; valid are model, object and singleton -->
<class>magento65569/observer</class> <!-- observers class alias -->
<method>CalculatePrice</method> <!-- observer's method to be called -->
<args></args> <!-- additional arguments passed to observer -->
</checkout_cart_product_add_after_handler>
</observers>
</checkout_cart_product_add_after>
<checkout_cart_update_items_after> <!-- identifier of the event we want to catch -->
<observers>
<checkout_cart_update_items_after_handler> <!-- identifier of the event handler -->
<type>singleton</type> <!-- class method call type; valid are model, object and singleton -->
<class>magento65569/observer</class> <!-- observers class alias -->
<method>UpdateCalculatePrice</method> <!-- observer's method to be called -->
</checkout_cart_update_items_after_handler>
</observers>
</checkout_cart_update_items_after>
<checkout_cart_product_update_after> <!-- identifier of the event we want to catch -->
<observers>
<checkout_cart_product_update_after_handler> <!-- identifier of the event handler -->
<type>singleton</type> <!-- class method call type; valid are model, object and singleton -->
<class>magento65569/observer</class> <!-- observers class alias -->
<method>ExitingcartItemUpdate</method> <!-- observer's method to be called -->
</checkout_cart_product_update_after_handler>
</observers>
</checkout_cart_product_update_after>
</events>
</global>
Observer code like this:
<?php
class Stackexchange_Magento65569_Model_Observer
{
/* This function will work when product will cart */
public function CalculatePrice(Varien_Event_Observer $observer)
{
//Mage::dispatchEvent('checkout_cart_product_add_after', array('quote_item' => $result, 'product' => $product));
$RadioVal=0;
$TextVal=0;
$resultParams=array();
$Event = $observer->getEvent();
$product=$Event->getProduct();
$quote_item=$Event->getQuoteItem();
$item = ($quote_item->getParentItem()?$quote_item->getParentItem():$quote_item );
$this->getOptiondata($item,$product);
}
/* This function will work when cart item will qty update */
public function UpdateCalculatePrice(Varien_Event_Observer $observer){
// Mage::dispatchEvent('checkout_cart_update_items_before', array('cart'=>$this, 'info'=>$data));
$cart=$observer->getEvent()->getCart();
$data=$observer->getEvent()->getInfo();
foreach ($data as $itemId => $itemInfo) {
$quote_item = $cart->getQuote()->getItemById($itemId);
if (!$quote_item) {
continue;
}
$item = ($quote_item->getParentItem()?$quote_item->getParentItem():$quote_item );
$customOptions = $quote_item->getBuyRequest()->getOptions();
Mage::log(print_r($customOptions,1),null,'UpdateCalculatePrice.log');
$this->getOptiondata($item,$item->getProduct());
}
}
public function ExitingcartItemUpdate($observer){
/*Mage::dispatchEvent('checkout_cart_product_update_after', array(
'quote_item' => $result,
'product' => $product
));*/
$Event = $observer->getEvent();
$product=$Event->getProduct();
$quote_item=$Event->getQuoteItem();
$item = ($quote_item->getParentItem()?$quote_item->getParentItem():$quote_item );
$this->getOptiondata($item,$product);
}
private function getOptiondata($item,$product){
$RadioVal=0;
$TextVal=0;
$resultParams=array();
$customOptions = $item->getBuyRequest()->getOptions();
Mage::log(print_r($customOptions,1),null,'Customoption.log');
if(is_array($customOptions)){
foreach ($customOptions as $key => $value) {
if ($value != '') {
$resultParams[]=$this->Recalculate($key,$value,$product);
}
}
if(!empty($resultParams)):
foreach($resultParams as $Each):
foreach($Each as $key=>$val):
if($key=='radio'):
$RadioVal=$val;
elseif($key=='mytext'):
$TextVal=$val;
else:
endif;
Mage::log(print_r($val,1),null,'new.log');
endforeach;
endforeach;
/* Now need price calcalute */
if($RadioVal!=0 && $TextVal!=0){
//radio value cost * textbox value + base price
$price=($RadioVal*$TextVal)+($product->getPrice());
Mage::log($RadioVal.'ddddd'.$TextVal.'sss'.$price,null,'trrr.log');
$item->setCustomPrice($price);
$item->setOriginalCustomPrice($price);
// Enable super mode on the product.
$item->getProduct()->setIsSuperMode(true);
}
endif;
}
}
public function Recalculate($optionId=null,$SelectVal,$product){
$Array=array();
if($optionId):
$option = Mage::getModel('catalog/product_option')->load($optionId);
if ($option = $product->getOptionById($optionId)) {
// Set additional fields to each type group
switch ($option->getGroupByType()) {
case Mage_Catalog_Model_Product_Option::OPTION_GROUP_TEXT:
if($option->getTitle()=='MyTestext'):
$Array['mytext']=$SelectVal;
Mage::log(print_r($Array,1),null,'Customoptionr.log');
endif;
break;
case Mage_Catalog_Model_Product_Option::OPTION_GROUP_SELECT:
if($option->getTitle()=='My Checkbox'):
foreach ($option->getValuesCollection() as $value) {
/* 'value_id' => $value->getId(),
'title' => $value->getTitle(),
'price' => $value->getPrice(),
'price_type' => $value->getPriceType(),
'sku' => $value->getSku(),
'sort_order' => $value->getSortOrder()
*/ if($value->getId()==$SelectVal){
$Array['radio']=$value->getPrice();
Mage::log(print_r($Array,1),null,'Customoptionr.log');
}
}
endif;
break;
default:
break;
}
}
/* end of $option = $product->getOptionById($optionId) */
endif;
return $Array;
}
}
Full Module:
As per as your request, i have put full module:
File1: create config file at app/code/local/Stackexchange/Magento65569/etc/config.xml
Code:
<?xml version="1.0"?>
<config>
<modules>
<Stackexchange_Magento65569>
<version>0.1.0</version>
</Stackexchange_Magento65569>
</modules>
<global>
<models>
<magento65569>
<class>Stackexchange_Magento65569_Model</class>
</magento65569>
</models>
<events>
<checkout_cart_product_add_after> <!-- identifier of the event we want to catch -->
<observers>
<checkout_cart_product_add_after_handler> <!-- identifier of the event handler -->
<type>singleton</type> <!-- class method call type; valid are model, object and singleton -->
<class>magento65569/observer</class> <!-- observers class alias -->
<method>CalculatePrice</method> <!-- observer's method to be called -->
<args></args> <!-- additional arguments passed to observer -->
</checkout_cart_product_add_after_handler>
</observers>
</checkout_cart_product_add_after>
<checkout_cart_update_items_after> <!-- identifier of the event we want to catch -->
<observers>
<checkout_cart_update_items_after_handler> <!-- identifier of the event handler -->
<type>singleton</type> <!-- class method call type; valid are model, object and singleton -->
<class>magento65569/observer</class> <!-- observers class alias -->
<method>UpdateCalculatePrice</method> <!-- observer's method to be called -->
</checkout_cart_update_items_after_handler>
</observers>
</checkout_cart_update_items_after>
<checkout_cart_product_update_after> <!-- identifier of the event we want to catch -->
<observers>
<checkout_cart_product_update_after_handler> <!-- identifier of the event handler -->
<type>singleton</type> <!-- class method call type; valid are model, object and singleton -->
<class>magento65569/observer</class> <!-- observers class alias -->
<method>ExitingcartItemUpdate</method> <!-- observer's method to be called -->
</checkout_cart_product_update_after_handler>
</observers>
</checkout_cart_product_update_after>
</events>
</global>
</config>
File2: location app/code/local/Stackexchange/Magento65569/Model/Observer.php
Code:
<?php
class Stackexchange_Magento65569_Model_Observer
{
public function CalculatePrice(Varien_Event_Observer $observer)
{
$RadioVal=0;
$TextVal=0;
$resultParams=array();
$Event = $observer->getEvent();
$product=$Event->getProduct();
$quote_item=$Event->getQuoteItem();
$item = ($quote_item->getParentItem()?$quote_item->getParentItem():$quote_item );
$this->getOptiondata($item,$product);
}
/* This function will work when cart item will qty update */
public function UpdateCalculatePrice(Varien_Event_Observer $observer){
$cart=$observer->getEvent()->getCart();
$data=$observer->getEvent()->getInfo();
foreach ($data as $itemId => $itemInfo) {
$quote_item = $cart->getQuote()->getItemById($itemId);
if (!$quote_item) {
continue;
}
$item = ($quote_item->getParentItem()?$quote_item->getParentItem():$quote_item );
$customOptions = $quote_item->getBuyRequest()->getOptions();
Mage::log(print_r($customOptions,1),null,'UpdateCalculatePrice.log');
$this->getOptiondata($item,$item->getProduct());
}
}
public function ExitingcartItemUpdate($observer){
$Event = $observer->getEvent();
$product=$Event->getProduct();
$quote_item=$Event->getQuoteItem();
$item = ($quote_item->getParentItem()?$quote_item->getParentItem():$quote_item );
$this->getOptiondata($item,$product);
}
private function getOptiondata($item,$product){
$RadioVal=0;
$TextVal=0;
$resultParams=array();
$customOptions = $item->getBuyRequest()->getOptions();
if(is_array($customOptions)){
foreach ($customOptions as $key => $value) {
if ($value != '') {
$resultParams[]=$this->Recalculate($key,$value,$product);
}
}
if(!empty($resultParams)):
foreach($resultParams as $Each):
foreach($Each as $key=>$val):
if($key=='radio'):
$RadioVal=$val;
elseif($key=='mytext'):
$TextVal=$val;
else:
endif;
Mage::log(print_r($val,1),null,'new.log');
endforeach;
endforeach;
/* Now need price calcalute */
if($RadioVal!=0 && $TextVal!=0){
//radio value cost * textbox value + base price
$price=($RadioVal*$TextVal)+($product->getPrice());
Mage::log($RadioVal.'ddddd'.$TextVal.'sss'.$price,null,'trrr.log');
$item->setCustomPrice($price);
$item->setOriginalCustomPrice($price);
// Enable super mode on the product.
$item->getProduct()->setIsSuperMode(true);
}
endif;
}
}
public function Recalculate($optionId=null,$SelectVal,$product){
$Array=array();
if($optionId):
$option = Mage::getModel('catalog/product_option')->load($optionId);
if ($option = $product->getOptionById($optionId)) {
// Set additional fields to each type group
switch ($option->getGroupByType()) {
case Mage_Catalog_Model_Product_Option::OPTION_GROUP_TEXT:
if($option->getTitle()=='MyTestext'):
$Array['mytext']=$SelectVal;
Mage::log(print_r($Array,1),null,'Customoptionr.log');
endif;
break;
case Mage_Catalog_Model_Product_Option::OPTION_GROUP_SELECT:
if($option->getTitle()=='My Checkbox'):
foreach ($option->getValuesCollection() as $value) {
if($value->getId()==$SelectVal){
$Array['radio']=$value->getPrice();
Mage::log(print_r($Array,1),null,'Customoptionr.log');
}
}
endif;
break;
default:
break;
}
}
/* end of $option = $product->getOptionById($optionId) */
endif;
return $Array;
}
}
File3: Module Main file at app/etc/modules/Stackexchange_Magento65569.xml
code:
<?xml version="1.0"?>
<config>
<modules>
<Stackexchange_Magento65569>
<active>true</active>
<codePool>local</codePool>
<version>0.1.0</version>
</Stackexchange_Magento65569>
</modules>
</config>
