From ff841cf519e80cdf795683bdf192a39d3a1090a3 Mon Sep 17 00:00:00 2001
From: Pierre-Yves Chibon <pingou@pingoured.fr>
Date: Oct 12 2014 08:43:26 +0000
Subject: Add a unique message identifier for the email sent about a pull-request


---

diff --git a/progit/model.py b/progit/model.py
index 9b21902..0b45ccc 100644
--- a/progit/model.py
+++ b/progit/model.py
@@ -400,6 +400,13 @@ class PullRequest(BASE):
             self.id, self.repo.name, self.user.user, self.title
         )
 
+    @property
+    def mail_id(self):
+        ''' Return a unique reprensetation of the issue as string that
+        can be used when sending emails.
+        '''
+        return '%s-pull-request-%s@progit' % (self.repo.name, self.id)
+
 
 class PullRequestComment(BASE):
     """ Stores the comments made on a pull-request.