diff --git a/classes/Product.php b/classes/Product.php
index 7b0c5c0d3..9350bc286 100644
--- a/classes/Product.php
+++ b/classes/Product.php
@@ -1079,12 +1079,12 @@ class ProductCore extends ObjectModel
 				$obj->available_date = '0000-00-00';
 			}
 
-			$obj->default_on = $default_on;
-			$default_on = 0;
-
 			foreach ($combination as $field => $value)
 				$obj->$field = $value;
 
+			$obj->default_on = $default_on;
+			$default_on = 0;
+
 			$obj->save();
 		
 			if (!$id_combination)
diff --git a/controllers/admin/AdminAttributeGeneratorController.php b/controllers/admin/AdminAttributeGeneratorController.php
index a394a64ee..dbbab06e5 100644
--- a/controllers/admin/AdminAttributeGeneratorController.php
+++ b/controllers/admin/AdminAttributeGeneratorController.php
@@ -46,7 +46,7 @@ class AdminAttributeGeneratorControllerCore extends AdminController
 		foreach ($attributes as $attribute)
 		{
 			$price += (float)preg_replace('/[^0-9.]/', '', str_replace(',', '.', Tools::getValue('price_impact_'.(int)$attribute)));
-			$weight += (float)preg_replace('/[^0-9.]/', '', str_replace(',', '.', Tools::getValue('weight_impact'.(int)$attribute)));
+			$weight += (float)preg_replace('/[^0-9.]/', '', str_replace(',', '.', Tools::getValue('weight_impact_'.(int)$attribute)));
 		}
 		if ($this->product->id)
 		{
@@ -165,11 +165,11 @@ class AdminAttributeGeneratorControllerCore extends AdminController
         $attributes = array();
         foreach ($tab as $group)
             foreach ($group as $attribute)
-			{
-				$price = preg_replace('/[^0-9.]/', '', str_replace(',', '.', Tools::getValue('price_impact_'.(int)$attribute)));
-				$weight = preg_replace('/[^0-9.]/', '', str_replace(',', '.', Tools::getValue('weight_impact'.(int)$attribute)));
-                $attributes[] = '('.(int)$id_product.', '.(int)$attribute.', '.(float)$price.', '.(float)$weight.')';
-			}
+				{
+					$price = preg_replace('/[^0-9.]/', '', str_replace(',', '.', Tools::getValue('price_impact_'.(int)$attribute)));
+					$weight = preg_replace('/[^0-9.]/', '', str_replace(',', '.', Tools::getValue('weight_impact_'.(int)$attribute)));
+					$attributes[] = '('.(int)$id_product.', '.(int)$attribute.', '.(float)$price.', '.(float)$weight.')';
+				}
 
 		return Db::getInstance()->execute('
 		INSERT INTO `'._DB_PREFIX_.'attribute_impact` (`id_product`, `id_attribute`, `price`, `weight`)
@@ -177,34 +177,35 @@ class AdminAttributeGeneratorControllerCore extends AdminController
 		ON DUPLICATE KEY UPDATE `price` = VALUES(price), `weight` = VALUES(weight)');
     }
 
-    protected static function getAttributesImpacts($id_product)
-    {
-        $tab = array();
-        $result = Db::getInstance()->executeS(
-        'SELECT ai.`id_attribute`, ai.`price`, ai.`weight`
-		FROM `'._DB_PREFIX_.'attribute_impact` ai
-		WHERE ai.`id_product` = '.(int)$id_product);
-        if (!$result)
-            return array();
-        foreach ($result as $impact)
-        {
-            $tab[$impact['id_attribute']]['price'] = (float)$impact['price'];
-            $tab[$impact['id_attribute']]['weight'] = (float)$impact['weight'];
-        }
-        return $tab;
+	protected static function getAttributesImpacts($id_product)
+	{
+		$tab = array();
+		$result = Db::getInstance()->executeS(
+			'SELECT ai.`id_attribute`, ai.`price`, ai.`weight`
+			FROM `'._DB_PREFIX_.'attribute_impact` ai
+			WHERE ai.`id_product` = '.(int)$id_product);
+
+		if (!$result)
+			return array();
+		foreach ($result as $impact)
+		{
+			$tab[$impact['id_attribute']]['price'] = (float)$impact['price'];
+			$tab[$impact['id_attribute']]['weight'] = (float)$impact['weight'];
+		}
+		return $tab;
     }
 
 	public function initGroupTable()
 	{
 		$combinations_groups = $this->product->getAttributesGroups($this->context->language->id);
 		$attributes = array();
-        $impacts = AdminAttributeGeneratorController::getAttributesImpacts($this->product->id);
+		$impacts = AdminAttributeGeneratorController::getAttributesImpacts($this->product->id);
 		foreach ($combinations_groups as &$combination)
 		{
-            $target = &$attributes[$combination['id_attribute_group']][$combination['id_attribute']];
+			$target = &$attributes[$combination['id_attribute_group']][$combination['id_attribute']];
 			$target = $combination;
-            if (isset($impacts[$combination['id_attribute']]))
-            {
+			if (isset($impacts[$combination['id_attribute']]))
+			{
 				$target['price'] = $impacts[$combination['id_attribute']]['price'];
 				$target['weight'] = $impacts[$combination['id_attribute']]['weight'];
 			}
diff --git a/js/attributesBack.js b/js/attributesBack.js
index 490e7d3b9..240c8d8bb 100644
--- a/js/attributesBack.js
+++ b/js/attributesBack.js
@@ -127,7 +127,7 @@ function create_attribute_row(id, id_group, name, price, weight)
 	html += 		'<td><input type="hidden" value="'+id+'" name="options['+id_group+']['+id+']" />'+name+'</td>';
 	html += 		'<td>'+i18n_tax_exc+'<input id="related_to_price_impact_ti_'+id+'" class="price_impact" style="width:50px" type="text" value="'+price+'" name="price_impact_'+id+'" onkeyup="calcPrice($(this), false)"></td>';
 	html += 		'<td>'+i18n_tax_inc+'<input id="related_to_price_impact_'+id+'" class="price_impact_ti" style="width:50px" type="text" value="" name="price_impact_ti_'+id+'" onkeyup="calcPrice($(this), true)"></td>';
-	html += 		'<td><input style="width:50px" type="text" value="'+weight+'" name="weight_impact['+id+']"></td>';
+	html += 		'<td><input style="width:50px" type="text" value="'+weight+'" name="weight_impact_'+id+'"></td>';
 	html += '</tr>';
 
 	return html;