Merge pull request #491 from Tecnativa/8.0-account_financial_report_webkit-fix_error_if_column_exists

[FIX] account_financial_report_webkit: Fix error if column exists

account_financial_report_webkit/README.rst

@@ -166,6 +166,7 @@ Contributors
 * Guewen Baconnier
 * David Dufresne <david.dufresne@savoirfairelinux.com>
 * Luc De Meyer <luc.demeyer@noviat.com>
+* Jairo Llopis <jairo.llopis@tecnativa.com>
 
 Maintainer
 ----------

account_financial_report_webkit/hooks.py

@@ -1,12 +1,15 @@
 # -*- coding: utf-8 -*-
 # © 2017 Therp BV <http://therp.nl>
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+from psycopg2 import ProgrammingError
+
 from .models.account_move_line import AccountMoveLine
 
 
 def pre_init_hook(cr):
-    with cr.savepoint():
     # don't break if column exists
+    try:
+        with cr.savepoint():
             cr.execute(
                 'alter table account_move_line add column last_rec_date date',
             )
@@ -18,6 +21,8 @@ def pre_init_hook(cr):
                 'create index account_move_line_last_rec_date_index '
                 'on account_move_line (last_rec_date)',
             )
+    except ProgrammingError:
+        pass
     # but still do the initialization
     cr.execute(
         """update account_move_line