[IMP] mass_mailing: add email marketing tour

PURPOSE

Improve the Email Marketing tour and onboarding to create a "wow effect" when
users test the app.

SPECIFICATIONS

Create a tour for mass_mailing to let user visit Odoo Email Marketing through
a simple mailing creation flow.

This require the following functional changes

  * by default, if user chooses to contact mailing lists and there is a single
    mailing list available, add it as default value for chosen list;
  * create a master mailing list data containing the admin user so that he can
    easily follow the tour and test the mailing application;

LINKS

Task ID 2194876
Community PR odoo/odoo#48259
Upgrade PR odoo/upgrade#983

Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>

1 files changed, 11 insertions, 2 deletions

diff --git a/addons/mass_mailing/models/mailing.py b/addons/mass_mailing/models/mailing.py
index 38814270ae1..7b5b5e65954 100644
--- a/addons/mass_mailing/models/mailing.py
+++ b/addons/mass_mailing/models/mailing.py
@@ -9,10 +9,9 @@ import random
 import re
 import threading
 from ast import literal_eval
-from base64 import b64encode
 from datetime import datetime
 
-from odoo import api, fields, models, tools, _, SUPERUSER_ID
+from odoo import api, fields, models, tools, _
 from odoo.exceptions import UserError
 from odoo.osv import expression
 
@@ -45,6 +44,16 @@ class MassMailing(models.Model):
     _rec_name = "subject"
 
     @api.model
+    def default_get(self, fields):
+        vals = super(MassMailing, self).default_get(fields)
+        if 'contact_list_ids' in fields and not vals.get('contact_list_ids') and vals.get('mailing_model_id'):
+            if vals.get('mailing_model_id') == self.env['ir.model']._get('mailing.list').id:
+                mailing_list = self.env['mailing.list'].search([], limit=2)
+                if len(mailing_list) == 1:
+                    vals['contact_list_ids'] = [(6, 0, [mailing_list.id])]
+        return vals
+
+    @api.model
     def _get_default_mail_server_id(self):
         server_id = self.env['ir.config_parameter'].sudo().get_param('mass_mailing.mail_server_id')
         try: