From 2a46bdd9755ec41bcbe786fbb6dac5aa40ea7e4d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Tue, 24 Jul 2018 22:01:08 +0200
Subject: [PATCH] Add __table_handler__ to ModelSQL

issue7581
review48531002
---
 sale.py | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/sale.py b/sale.py
index fe58988386..82891966c9 100644
--- a/sale.py
+++ b/sale.py
@@ -11,7 +11,6 @@ from trytond.model import (
     sequence_ordered)
 from trytond.pyson import Eval, If
 from trytond.transaction import Transaction
-from trytond import backend
 
 __all__ = ['Sale', 'SaleLine',
     'SaleExtra', 'SaleExtraLine']
@@ -111,14 +110,13 @@ class SaleExtra(DeactivableMixin, ModelSQL, ModelView, MatchMixin):
     def __register__(cls, module_name):
         pool = Pool()
         PriceList = pool.get('product.price_list')
-        TableHandler = backend.get('TableHandler')
         cursor = Transaction().connection.cursor()
         sql_table = cls.__table__()
         price_list = PriceList.__table__()
 
         super(SaleExtra, cls).__register__(module_name)
 
-        table = TableHandler(cls, module_name)
+        table = cls.__table_handler__(module_name)
         # Migration from 3.6: price_list not required and new company
         table.not_null_action('price_list', 'remove')
         query = sql_table.join(price_list,