[-] FO : Fix bug #PSCFV-10606 could not have correct taxCalculationMethod when vat number in customer address

classes/Product.php

@@ -519,6 +519,17 @@ class ProductCore extends ObjectModel
 			if (!Validate::isLoadedObject($customer))
 				die(Tools::displayError());
 			self::$_taxCalculationMethod = Group::getPriceDisplayMethod((int)$customer->id_default_group);
+			$cur_cart = Context::getContext()->cart;
+			$id_address = 0;
+			if (Validate::isLoadedObject($cur_cart))
+				$id_address = $cur_cart->{Configuration::get('PS_TAX_ADDRESS_TYPE')};
+			$address_infos = Address::getCountryAndState($id_address);
+
+			if (self::$_taxCalculationMethod != PS_TAX_EXC
+				&& !empty($address_infos['vat_number'])
+				&& $address_infos['id_country'] != Configuration::get('VATNUMBER_COUNTRY')
+				&& Configuration::get('VATNUMBER_MANAGEMENT'))
+				self::$_taxCalculationMethod = PS_TAX_EXC;
 		}
 		else
 			self::$_taxCalculationMethod = Group::getPriceDisplayMethod(Group::getCurrent()->id);

classes/controller/FrontController.php

@@ -251,6 +251,8 @@ class FrontControllerCore extends Controller
 			$this->context->cart = $cart;
 			CartRule::autoAddToCart($this->context);
 		}
+		else
+			$this->context->cart = $cart;	
 
 		/* get page name to display it in body id */
 
@@ -325,7 +327,7 @@ class FrontControllerCore extends Controller
 			'currencies' => Currency::getCurrencies(),
 			'languages' => $languages,
 			'meta_language' => implode('-', $meta_language),
-			'priceDisplay' => Product::getTaxCalculationMethod(),
+			'priceDisplay' => Product::getTaxCalculationMethod((int)$this->context->cookie->id_customer),
 			'add_prod_display' => (int)Configuration::get('PS_ATTRIBUTE_CATEGORY_DISPLAY'),
 			'shop_name' => Configuration::get('PS_SHOP_NAME'),
 			'roundMode' => (int)Configuration::get('PS_PRICE_ROUND_MODE'),