sale_confirm_wizard: add ability to skip wizard via inherit in some scenarios

sale_confirm_wizard/__init__.py

@@ -1,3 +1,4 @@
 # -*- coding: utf-8 -*-
 
+from . import sale
 from . import wizard

sale_confirm_wizard/sale.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+# Copyright 2020 Akretion France (http://www.akretion.com/)
+# @author: Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import models
+
+
+class SaleOrder(models.Model):
+    _inherit = 'sale.order'
+
+    def sale_confirm_wizard_button(self):
+        """This method is designed to be inherited.
+        For example, inherit it if you don't want to start the wizard in
+        some scenarios"""
+        action = self.env.ref(
+            'sale_confirm_wizard.sale_confirm_action').read()[0]
+        return action

sale_confirm_wizard/sale_view.xml

@@ -12,12 +12,10 @@
     <field name="inherit_id" ref="sale.view_order_form"/>
     <field name="arch" type="xml">
         <button name="action_confirm" type="object" states="draft" position="attributes">
-            <attribute name="type">action</attribute>
-            <attribute name="name">%(sale_confirm_action)d</attribute>
+            <attribute name="name">sale_confirm_wizard_button</attribute>
         </button>
         <button name="action_confirm" type="object" states="sent" position="attributes">
-            <attribute name="type">action</attribute>
-            <attribute name="name">%(sale_confirm_action)d</attribute>
+            <attribute name="name">sale_confirm_wizard_button</attribute>
         </button>
     </field>
 </record>