[ADD] tg_event: set default email template for the emails to be sent …

…manually to the attendees using Send By Email button

tg_event/README.rst

@@ -3,6 +3,7 @@
 ========================================================
 
 * In event form the field "Subscribe In Registrations" is added to set the partners for subscribing in event registration records
+* Set email template taken from the related Event as default upon manual email sending to attendee in event registration form
 
 Credits
 =======

tg_event/models/event_event.py

@@ -7,3 +7,7 @@ class EventEvent(models.Model):
     subscribe_in_registrations = fields.Many2many(
         "res.partner", "event_reg_sub_partner"
     )
+    default_email_template_id = fields.Many2one(
+        "mail.template", help="Default email template used upon manual sending the emails to attendees using "
+                              "Send By Email button in the event registration form"
+    )

tg_event/models/event_registration.py

@@ -10,3 +10,20 @@ def create(self, vals_list):
         for record in records:
             record.message_subscribe(record.event_id.subscribe_in_registrations.ids)
         return records
+
+    # Set email template taken from the related Event as default upon manual email sending to attendee
+    # in event registration form
+    def action_send_badge_email(self):
+        res = super(EventRegistration, self).action_send_badge_email()
+        default_tmpl = self.event_id.default_email_template_id
+        template = self.env['mail.template'].search([('id', '=', default_tmpl.id)])
+        ctx = dict(
+            default_model='event.registration',
+            default_res_id=self.id,
+            default_use_template=bool(template),
+            default_template_id=template.id,
+            default_composition_mode='comment',
+            custom_layout="mail.mail_notification_light",
+        )
+        res.update({'context': ctx})
+        return res

tg_event/views/event_views.xml

@@ -8,6 +8,9 @@
             <xpath expr="//field[@name='auto_confirm']" position="after">
                 <field name="subscribe_in_registrations" widget="many2many_tags" />
             </xpath>
+            <xpath expr="//field[@name='tag_ids']" position="after">
+                <field name="default_email_template_id" />
+            </xpath>
         </field>
     </record>
 </odoo>