First stab at adding UUID to user profile

apps/users/models.py

@@ -0,0 +1,35 @@
+from uuid import uuid4
+
+from django.db import models
+from django.utils.translation import ugettext_lazy as _
+
+from django.contrib.auth.models import User
+
+from django.db.models.signals import post_save
+
+class UserProfile(models.Model):
+    """
+    Provides a place for 1:1 attributes that
+    are associated with a SSO user.
+
+    The sso_uuid is a RFC 4122 style UUID 
+    which is assigned at object creation.
+    It is the only ID which a client SSO application
+    should use. Email, username, etc are not guaranteed
+    to be stable.
+
+    Access via get_profile() method on a User object
+    """
+    user = models.OneToOneField(User)
+    sso_uuid = models.CharField(_('UUID'), max_length=36, default=str(uuid4()))
+
+def user_saved(sender, **kwargs):
+    """ After a new user is saved in the db
+        we should create their profile.
+    """
+    if User == sender:
+        if 'created' in kwargs and kwargs['created']:
+            profile = UserProfile(user=kwargs['instance'])
+            profile.save()
+
+post_save.connect(user_saved)

apps/users/templates/users/profile.html

@@ -17,6 +17,10 @@ <h2>{% block title %}User Info{% endblock %}</h2>
     <th>Email Address</th>
     <td>{{ user.email }}</td>
   </tr>
+  <tr>
+    <th>UUID (debugging)</th>
+    <td>{{ user.get_profile().sso_uuid }}</td>
+  </tr>
 </table>
 
 <h2>Associated Sites</h2>

settings.py

@@ -134,12 +134,13 @@ def JINJA_CONFIG():
     'django.contrib.messages',
 
     'cas_provider',
-
     'registration',
     'sso',
     'users',
 )
 
+AUTH_PROFILE_MODULE = 'users.UserProfile'
+
 # Tests
 TEST_RUNNER = 'test_utils.runner.RadicalTestSuiteRunner'