From aadc9da5da3ce6713bdc5518789fc236505b83fc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Wed, 13 Dec 2017 18:02:12 +0100
Subject: [PATCH] Store cache in one save

issue6980
review44471002
---
 purchase.py | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/purchase.py b/purchase.py
index ca1d9c0ac6..e8e88addeb 100644
--- a/purchase.py
+++ b/purchase.py
@@ -664,11 +664,10 @@ class Purchase(Workflow, ModelSQL, ModelView, TaxableMixin):
     @classmethod
     def store_cache(cls, purchases):
         for purchase in purchases:
-            cls.write([purchase], {
-                    'untaxed_amount_cache': purchase.untaxed_amount,
-                    'tax_amount_cache': purchase.tax_amount,
-                    'total_amount_cache': purchase.total_amount,
-                    })
+            purchase.untaxed_amount_cache = purchase.untaxed_amount
+            purchase.tax_amount_cache = purchase.tax_amount
+            purchase.total_amount_cache = purchase.total_amount
+        cls.save(purchases)
 
     def _get_invoice_purchase(self):
         'Return invoice'