update the price in cart

[bilal2005]

I add a new attribute and do specal calcul for price now I need to update the price in panel price and add to cart 

 

there is a function in presta do that ?, there is n exemple of that ??

 

thanks

[NemoPS]

How are you managing the special price calculation?

[bilal2005]

I create method for get the price by Id 

 

 

public static function getPriceByIds($id){

$s=' SELECT  p.price FROM ps_product p where p.id_product='.(int)$id.'  GROUP BY p.id_product';        
   
$rowprice = Db::getInstance()->getValue($s);
   


 return $rowprice;
}

and after that I write ths code for calculte the price and get the price 

 public function hookDisplayFooterProduct($params) {
    	global $smarty;
    		require_once(dirname(__FILE__).'/entity/AttributeInfos.php');
		    $this->context->controller->addJquery();
		    $this->context->controller->addJS($this->_path.'js/jquery-1.7.1.min.js');
		    
        $id_product = Tools::getValue('id_product');
        $sampleObj = Sariri_Sample::loadByIdProduct($id_product);
        if(!empty($sampleObj) && isset($sampleObj->id)){
            $this->context->smarty->assign(array(
                'bel_textarea' => $sampleObj->textarea,
            ));
	    
	   $attributes = Product::getAttributesInformationsByProduct($id_product);
	    
	    $byGroupAttributes = array();
	    foreach($attributes as &$attribute){
	      $infos = AttributeInfos::getInformationByIds($id_product, $attribute["id_attribute"]);
	       $attribute["price"] = Tools::displayPrice($infos["price"] * (1+ Tax::getProductTaxRate($id_product)/100));
			     $byGroupAttributes[$attribute["group"]][] = $attribute;
	}
			
			$this->context->smarty->assign(array(
					  				'GroupAttributes' => $byGroupAttributes,
									'pda_combinations_price' => $pda_combinations_price
						  	));
							  
							  
							  
  $price = AttributeInfos::getPriceByIds($id_product);	
  
  
  $y=(Tax::getProductTaxRate($id_product)*$price)/100;
  
$tv=$price +$y;

$p=round($tv,2);


$t=floatval($p);


  	$this->context->smarty->assign('tv',$t);
	 $this->context->smarty->assign('id_produits',$id_product);	  
        }
        
        return $this->display(__FILE__, 'views/frontend/sample.tpl');
    }

so my problem how can I dispmay my price in cart 

Edited April 25, 2015 by bilal2005 (see edit history)

[NemoPS]

That way, you cannot.

The only way I know, and which I always used, was overriding the PriceCalculation method of the Product class. There, return your price given certain condition. Otherwise, you will never be able to use that price throughout the whole store seamlessly

[kishoreunni]

I also caught this how to get price in add to cart.

How we can override the PriceCalculation method of the product class ?

Since it is called under getPriceStatic method. And changing the price in PriceCalculation is enough to display our custom price in the add to cart page ?

 

please help me.

 

Thanks in advance

[NemoPS]

Here: http://doc.prestashop.com/display/PS15/Overriding+default+behaviors#Overridingdefaultbehaviors-Overridingaclass
Depending on what you need, you might have to add another parameter to track what kind of product has been added, to getPriceStatic as well, and references to it (which might take a whole lot, to find it wherever it's needed)