From 28e4d67df813dd7fcf6f38c2e92f22d912740a43 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Mon, 6 Oct 2014 22:22:08 +0200
Subject: [PATCH] Use new cursor to check access in ModuleInstallUpgrade

check_access take a lock on many tables and so it prevents those tables to be
modified by the installation/upgrade process as far as the cursor is not
closed.

issue4223
review13571002
---
 trytond/ir/module/module.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/trytond/ir/module/module.py b/trytond/ir/module/module.py
index 76dca70cbb..8153bde1db 100644
--- a/trytond/ir/module/module.py
+++ b/trytond/ir/module/module.py
@@ -483,6 +483,12 @@ class ModuleInstallUpgrade(Wizard):
             ])
     config = StateAction('ir.act_module_config_wizard')
 
+    @classmethod
+    def check_access(cls):
+        # Use new cursor to prevent lock when installing modules
+        with Transaction().new_cursor():
+            super(ModuleInstallUpgrade, cls).check_access()
+
     @staticmethod
     def default_start(fields):
         pool = Pool()