From 012564fc4467eb85e6f177a17a5f4bcc462ad0f4 Mon Sep 17 00:00:00 2001
From: Raimon Esteve <raimonesteve@gmail.com>
Date: Fri, 11 Nov 2022 12:32:57 +0100
Subject: [PATCH] return product when parcel has product

---
 contract.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/contract.py b/contract.py
index 31eeaba..7b4ad70 100644
--- a/contract.py
+++ b/contract.py
@@ -174,9 +174,8 @@ class AgronomicsContractLine(ModelSQL, ModelView):
 
     @fields.depends('parcel')
     def on_change_with_product(self, name=None):
-        if self.parcel:
+        if self.parcel and self.parcel.product:
             return self.parcel.product.id
-        return None
 
     @fields.depends('product', methods=['on_change_with_product'])
     def on_change_with_unit(self, name=None):