[IMP] mass_mailing: choose model among all chatter models

This commit removes the strange selection box based on a magic flag and
some strange methods returning a string. Instead just allow to send mass
mailing on all models inheriting from mail.thread using the is mail
thread flag.

Various addons are updated to remove the _mail_mass_mailing class
attribute used to determine mass mailing capability.

We consider people could send a mass mailing on every model inheriting
from mail.thread. It makes no sense to limit it to a given set of addons.

1 files changed, 2 insertions, 2 deletions

diff --git a/addons/mass_mailing/wizard/mail_compose_message.py b/addons/mass_mailing/wizard/mail_compose_message.py
index 6c1fc81280e..6147b028a18 100644
--- a/addons/mass_mailing/wizard/mail_compose_message.py
+++ b/addons/mass_mailing/wizard/mail_compose_message.py
@@ -23,7 +23,7 @@ class MailComposeMessage(models.TransientModel):
         # use only for allowed models in mass mailing
         if self.composition_mode == 'mass_mail' and \
                 (self.mass_mailing_name or self.mass_mailing_id) and \
-                self.model in [item[0] for item in self.env['mail.mass_mailing']._get_mailing_model()]:
+                self.env['ir.model'].sudo().search([('model', '=', self.model), ('is_mail_thread', '=', True)], limit=1):
             mass_mailing = self.mass_mailing_id
             if not mass_mailing:
                 reply_to_mode = 'email' if self.no_auto_thread else 'thread'
@@ -37,7 +37,7 @@ class MailComposeMessage(models.TransientModel):
                         'reply_to': reply_to,
                         'sent_date': fields.Datetime.now(),
                         'body_html': self.body,
-                        'mailing_model': self.model,
+                        'mailing_model_id': self.env['ir.model'].search([('model', '=', self.model)], limit=1).id,
                         'mailing_domain': self.active_domain,
                 })