Improve default date for reversal: D+1 instead of today

account_usability/wizard/__init__.py

@@ -1,3 +1,4 @@
 # -*- encoding: utf-8 -*-
 
 from . import account_invoice_mark_sent
+from . import account_move_reversal

account_usability/wizard/account_move_reversal.py

@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+# Copyright 2018 Akretion (Alexis de Lattre <alexis.delattre@akretion.com>)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import api, fields, models
+from dateutil.relativedelta import relativedelta
+
+
+class AccountMoveReversal(models.TransientModel):
+    _inherit = 'account.move.reversal'
+
+    @api.model
+    def _default_date(self):
+        date = None
+        if (
+                self._context.get('active_model') == 'account.move' and
+                self._context.get('active_id')):
+            move = self.env['account.move'].browse(self._context['active_id'])
+            date_dt = fields.Date.from_string(move.date) +\
+                relativedelta(days=1)
+            date = fields.Date.to_string(date_dt)
+        return date
+
+    date = fields.Date(default=_default_date)