From ff0d7651bfd9cd7ff995238053ddd6880930870f Mon Sep 17 00:00:00 2001
From: Marion Muszynski <marion@antadis.com>
Date: Wed, 31 Aug 2016 11:55:14 +0200
Subject: [PATCH] fix total product attribute quantities

---
 override/classes/Product.php | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/override/classes/Product.php b/override/classes/Product.php
index 1bbc4f60..ea9a4283 100644
--- a/override/classes/Product.php
+++ b/override/classes/Product.php
@@ -159,7 +159,7 @@ class Product extends ProductCore
 
 		if ($row['id_product_attribute'])
 		{
-			$row['quantity_all_versions'] = $row['quantity'];
+			$row['quantity_all_versions'] = Product::getTotalAttributeQuantity((int)$row['id_product']);
 			$row['quantity'] = Product::getQuantity((int)$row['id_product'], $row['id_product_attribute'], isset($row['cache_is_pack']) ? $row['cache_is_pack'] : NULL);
 		}
 		$row['id_image'] = Product::defineProductImage($row, $id_lang);
@@ -285,4 +285,15 @@ class Product extends ProductCore
 		}
 		return !$return ? false : $combinationImages;
 	}
+
+    public static function getTotalAttributeQuantity($id_product)
+    {
+        $quantity = Db::getInstance()->getValue('
+            SELECT SUM(`quantity`)
+            FROM `'._DB_PREFIX_.'product_attribute`
+            WHERE `id_product` = '.(int)($id_product)
+        );
+
+        return $quantity;
+    }
 }