From 886580a02c852c031a8b206b2a497e3ba60ece2d Mon Sep 17 00:00:00 2001
From: Andrew Williams <andy@tensixtyone.com>
Date: Mon, 1 Mar 2010 00:24:39 +0100
Subject: [PATCH] Raise exception if user exists

---
 sso/models.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sso/models.py b/sso/models.py
index 0e21e33..f22c865 100644
--- a/sso/models.py
+++ b/sso/models.py
@@ -10,6 +10,9 @@ from services import get_api
 class CorporateOnlyService(Exception):
     pass
 
+class ExistingUser(Exception):
+    pass
+
 ## Models
 
 class SSOUser(models.Model):
@@ -84,6 +87,8 @@ class ServiceAccount(models.Model):
         if self.active:
             if not api.check_user(self.username):
                 api.add_user(self.username, self.password)
+            else:
+                raise ExistingUser('Username %s has already been took' % self.username)
         else:
             if api.check_user(self.username):
                 api.delete_user(self.username)