[IMP] mail: headers to notification emails

>
> This merge adds some basic data to notification emails headers. It contains the related
> record of the notification. This allows users to classify / perform action based on
> headers.
>
> Headers :
> - X-Odoo-Objects: list of records
> - X-Odoo-db-uuid: database uid

In task and issue, we had the parent project and the tags in the headers.

addons/mail/models/mail_channel.py

@@ -166,7 +166,6 @@ class Channel(models.Model):
             self.message_post(body=notification, message_type="notification", subtype="mail.mt_comment")
         return result
 
-
     @api.multi
     def message_get_email_values(self, notif_mail=None):
         self.ensure_one()

addons/mail/models/mail_thread.py

@@ -730,8 +730,11 @@ class MailThread(models.AbstractModel):
         """ Get specific notification email values to store on the notification
         mail_mail. Void method, inherit it to add custom values. """
         self.ensure_one()
-        res = dict()
-        return res
+        database_uuid = self.env['ir.config_parameter'].get_param('database.uuid')
+        return {'headers': repr({
+            'X-Odoo-Objects': "%s-%s" % (self._model, self.id),
+            'X-Odoo-db-uuid': database_uuid
+        })}
 
     # ------------------------------------------------------
     # Mail gateway

addons/project/project.py

@@ -9,6 +9,7 @@ from openerp import api
 from openerp import SUPERUSER_ID
 from openerp import tools
 from openerp.osv import fields, osv
+from openerp.tools.safe_eval import safe_eval as eval
 from openerp.tools.translate import _
 from openerp.exceptions import UserError
 
@@ -833,6 +834,24 @@ class task(osv.osv):
                 data._message_add_suggested_recipient(recipients, partner=data.partner_id, reason=reason)
         return recipients
 
+    def message_get_email_values(self, cr, uid, ids, notif_mail=None, context=None):
+        res = super(task, self).message_get_email_values(cr, uid, ids, notif_mail=notif_mail, context=context)
+        current_task = self.browse(cr, uid, ids[0], context=context)
+        headers = {}
+        if res.get('headers'):
+            try:
+                headers.update(eval(res['headers']))
+            except Exception:
+                pass
+        if current_task.project_id:
+            current_objects = filter(None, headers.get('X-Odoo-Objects', '').split(','))
+            current_objects.insert(0, 'project.project-%s, ' % current_task.project_id.id)
+            headers['X-Odoo-Objects'] = ','.join(current_objects)
+        if current_task.tag_ids:
+            headers['X-Odoo-Tags'] = ','.join([tag.name for tag in current_task.tag_ids])
+        res['headers'] = repr(headers)
+        return res
+
 
 class account_analytic_account(osv.osv):
     _inherit = 'account.analytic.account'

addons/project_issue/project_issue.py

@@ -12,6 +12,7 @@ from openerp import tools
 from openerp.osv import fields, osv, orm
 from openerp.tools import DEFAULT_SERVER_DATETIME_FORMAT
 from openerp.tools import html2plaintext
+from openerp.tools.safe_eval import safe_eval as eval
 from openerp.tools.translate import _
 from openerp.exceptions import UserError, AccessError
 
@@ -422,6 +423,24 @@ class project_issue(osv.Model):
             self.write(cr, SUPERUSER_ID, thread_id, {'date_action_last': fields.datetime.now()}, context=context)
         return res
 
+    def message_get_email_values(self, cr, uid, ids, notif_mail=None, context=None):
+        res = super(project_issue, self).message_get_email_values(cr, uid, ids, notif_mail=notif_mail, context=context)
+        current_issue = self.browse(cr, uid, ids[0], context=context)
+        headers = {}
+        if res.get('headers'):
+            try:
+                headers.update(eval(res['headers']))
+            except Exception:
+                pass
+        if current_issue.project_id:
+            current_objects = filter(None, headers.get('X-Odoo-Objects', '').split(','))
+            current_objects.insert(0, 'project.project-%s, ' % current_issue.project_id.id)
+            headers['X-Odoo-Objects'] = ','.join(current_objects)
+        if current_issue.tag_ids:
+            headers['X-Odoo-Tags'] = ','.join([tag.name for tag in current_issue.tag_ids])
+        res['headers'] = repr(headers)
+        return res
+
 
 class project(osv.Model):
     _inherit = "project.project"