Add mass backtodraft wizard on account.move

account_usability/__manifest__.py

@@ -42,6 +42,7 @@ This module has been written by Alexis de Lattre from Akretion <alexis.delattre@
         'partner_view.xml',
         'product_view.xml',
         'wizard/account_invoice_mark_sent_view.xml',
+        'wizard/account_move_backtodraft_view.xml',
         ],
     'installable': True,
 }

account_usability/wizard/__init__.py

@@ -2,3 +2,4 @@
 
 from . import account_invoice_mark_sent
 from . import account_move_reversal
+from . import account_move_backtodraft

account_usability/wizard/account_move_backtodraft.py

@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+# Copyright 2019 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, _
+from odoo.exceptions import UserError
+
+
+class AccountMoveBacktodraft(models.TransientModel):
+    _name = 'account.move.backtodraft'
+    _description = 'Account Move Unpost'
+
+    def backtodraft(self):
+        assert self._context.get('active_model') == 'account.move'
+        amo = self.env['account.move']
+        moves = amo.browse(self._context.get('active_ids'))
+        moves_backtodraft = moves.filtered(lambda x: x.state == 'posted')
+        if not moves_backtodraft:
+            raise UserError(_(
+                'There is no journal items in posted state to unpost.'))
+        moves_backtodraft.button_cancel()
+        return True

account_usability/wizard/account_move_backtodraft_view.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+
+<record id="account_move_backtodraft_form" model="ir.ui.view">
+    <field name="name">Unpost Journal Entries</field>
+    <field name="model">account.move.backtodraft</field>
+    <field name="arch" type="xml">
+        <form string="Unpost Journal Entries">
+            <label string="All selected journal entries will be unposted (if allowed by the journal configuration)."/>
+            <footer>
+                <button string="Unpost Journal Entries" name="backtodraft" type="object" class="btn-primary"/>
+                <button string="Cancel" class="btn-default" special="cancel"/>
+            </footer>
+        </form>
+    </field>
+</record>
+
+<act_window id="account_move_backtodraft_action"
+            multi="True"
+            key2="client_action_multi"
+            name="Unpost Journal Entries"
+            res_model="account.move.backtodraft"
+            src_model="account.move"
+            view_mode="form"
+            target="new" />
+
+
+</odoo>