From d1b33c2dc04bea2958a7a5ace45c01cd0e5695d7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Tue, 10 Jun 2025 18:12:43 +0200
Subject: [PATCH] Define product variable to raise error when cost price
 expression is not a Decimal

The product variable is used to format the error message but also as for
50bf49b7b031 it may be empty.

Closes #14062
---
 modules/stock/product.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/modules/stock/product.py b/modules/stock/product.py
index 90347f3e2a..a9869baa7a 100644
--- a/modules/stock/product.py
+++ b/modules/stock/product.py
@@ -1317,11 +1317,12 @@ class CostPriceRevision(ModelSQL, ModifyCostPriceStart):
                     product=product.rec_name if product else '',
                     exception=exception)) from exception
         if not isinstance(amount, Decimal):
+            product = self.product or self.template
             raise ProductCostPriceError(
                 gettext('stock.msg_invalid_cost_price_not_number',
                     value=amount,
                     cost_price=self.cost_price,
-                    product=product.rec_name))
+                    product=product.rec_name if product else ''))
         return amount
 
     @classmethod