From ce43f747a198f0c7856273810d62ea57ab6e4dd8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Wed, 27 Mar 2019 00:28:57 +0100
Subject: [PATCH] Raise NotImplementedError when setting Function field without
 setter

issue7985
review265101002
---
 product.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/product.py b/product.py
index d516048374..caf5b906fc 100644
--- a/product.py
+++ b/product.py
@@ -125,10 +125,10 @@ class Category(CompanyMultiValueMixin, metaclass=PoolMeta):
             },
         depends=['taxes_parent', 'accounting'],
         help="The taxes to apply when purchasing products of this category.")
-    customer_taxes_used = fields.Function(fields.One2Many('account.tax', None,
-            'Customer Taxes Used'), 'get_taxes')
-    supplier_taxes_used = fields.Function(fields.One2Many('account.tax', None,
-            'Supplier Taxes Used'), 'get_taxes')
+    customer_taxes_used = fields.Function(fields.Many2Many(
+            'account.tax', None, None, "Customer Taxes Used"), 'get_taxes')
+    supplier_taxes_used = fields.Function(fields.Many2Many(
+            'account.tax', None, None, "Supplier Taxes Used"), 'get_taxes')
 
     @classmethod
     def __setup__(cls):