[FIX] Fixed cod for multi products with attributes and discount wrong

sale_loyalty_discount_attribute/models/sale_order.py

@@ -26,12 +26,16 @@ def _get_reward_values_discount(self, reward, coupon, **kwargs):
                 reward.limit_discounted_attributes
                 and reward.limit_discounted_attributes != "disabled"
             ):
-                for so_lines in self.order_line.filtered(lambda l: not l.reward_id):
+                attributes_wise_price_unit = 0.0
+                for so_lines in self.order_line.filtered(
+                    lambda l: not l.reward_id
+                    and l.product_id.id in reward.discount_product_ids.ids
+                ):
                     for value_line in so_lines.product_no_variant_attribute_value_ids:
-                        test_unit = price_unit
-                        test_unit += value_line.price_extra * discount_value
                         if value_line.attribute_id not in reward_attributes:
-                            price_unit += value_line.price_extra * discount_value
+                            attributes_wise_price_unit += (
+                                value_line.price_extra * discount_value
+                            )
                     # if limit discounted attributes is set to attributes,
                     # sales list price should not be considered for discount as well
                     # and is counted as many times as the product repeats itself in the lines
@@ -41,6 +45,7 @@ def _get_reward_values_discount(self, reward, coupon, **kwargs):
                             * len(so_lines)
                             * discount_value
                         )
+                price_unit = abs(price_unit) - attributes_wise_price_unit
                 discount.update({"price_unit": price_unit})
                 # replaces the discount line
                 res[i] = discount