[IMP] mass_mailing: add schedule button that opens a wizard for scheduling date

Purpose of this commit is to re-arrange mass mailing buttons and to add
a button for scheduling mass mailing in future :

 * add schedule date in debug mode;
 * re-arrange all button;
 * add schedule in future button and on click open wizard to schedule future
   date;
 * on 'send now' button remove the useless '|' in domain;
 * add a small wizard to select the send date;

This commit is related to task ID 46932

3 files changed, 51 insertions, 0 deletions

diff --git a/addons/mass_mailing/wizard/__init__.py b/addons/mass_mailing/wizard/__init__.py
index 41ed9cc32f3..d501dfb411a 100644
--- a/addons/mass_mailing/wizard/__init__.py
+++ b/addons/mass_mailing/wizard/__init__.py
@@ -4,3 +4,4 @@
 from . import test_mailing
 from . import mail_compose_message
 from . import mass_mailing_list_merge
+from . import mass_mailing_schedule_date
diff --git a/addons/mass_mailing/wizard/mass_mailing_schedule_date.py b/addons/mass_mailing/wizard/mass_mailing_schedule_date.py
new file mode 100644
index 00000000000..428ee9c54e5
--- /dev/null
+++ b/addons/mass_mailing/wizard/mass_mailing_schedule_date.py
@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import api, fields, models, _
+from odoo.exceptions import ValidationError
+
+
+class MassMailingScheduleDate(models.TransientModel):
+    _name = 'mass.mailing.schedule.date'
+    _description = 'Schedule in the Future'
+
+    schedule_date = fields.Datetime(string='Schedule in the Future')
+    mass_mailing_id = fields.Many2one('mail.mass_mailing', required=True)
+
+    @api.constrains('schedule_date')
+    def _check_schedule_date(self):
+        for scheduler in self:
+            if scheduler.schedule_date < fields.Datetime.now():
+                raise ValidationError(_('Please select a date equal/or greater than the current date.'))
+
+    def set_schedule_date(self):
+        self.mass_mailing_id.write({'schedule_date': self.schedule_date, 'state': 'in_queue'})
diff --git a/addons/mass_mailing/wizard/mass_mailing_schedule_date_views.xml b/addons/mass_mailing/wizard/mass_mailing_schedule_date_views.xml
new file mode 100644
index 00000000000..b0e1aabe884
--- /dev/null
+++ b/addons/mass_mailing/wizard/mass_mailing_schedule_date_views.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0"?>
+<odoo>
+    <record id="mass_mailing_schedule_date_view_form"  model="ir.ui.view">
+        <field name="name">mass.mailing.schedule.date.view.form</field>
+        <field name="model">mass.mailing.schedule.date</field>
+        <field name="arch" type="xml">
+            <form string="Take Future Schedule Date">
+                <group>
+                    <group>
+                        <field name="schedule_date" required="1"/>
+                    </group>
+                </group>
+                <footer>
+                    <button string="Schedule" name="set_schedule_date" type="object" class="btn-primary"/>
+                    <button string="Discard " class="btn-default" special="cancel" />
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <record id="mass_mailing_schedule_date_action" model="ir.actions.act_window">
+        <field name="name">When do you want to send your mailing?</field>
+        <field name="res_model">mass.mailing.schedule.date</field>
+        <field name="type">ir.actions.act_window</field>
+        <field name="view_mode">form</field>
+        <field name="target">new</field>
+    </record>
+</odoo>