From 582597b7b85d721f0cbb54ede857f0b58842e249 Mon Sep 17 00:00:00 2001
From: Luke Hatcher <lukeman@gmail.com>
Date: Thu, 20 Dec 2012 01:55:14 -0500
Subject: [PATCH] only yield actual users

---
 symposion/schedule/models.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/symposion/schedule/models.py b/symposion/schedule/models.py
index ab422948..ed1ff439 100644
--- a/symposion/schedule/models.py
+++ b/symposion/schedule/models.py
@@ -139,7 +139,8 @@ class Presentation(models.Model):
     def speakers(self):
         yield self.speaker
         for speaker in self.additional_speakers.all():
-            yield speaker
+            if speaker.user:
+                yield speaker
     
     def __unicode__(self):
         return "#%s %s (%s)" % (self.number, self.title, self.speaker)