From e502bba259944e0e539a56899d08fdd0c1ef2363 Mon Sep 17 00:00:00 2001
From: Evan Prodromou <evan@e14n.com>
Date: Sun, 30 Jun 2013 12:07:55 -0400
Subject: [PATCH] Slightly more robust group-membership conversion

---
 classes/Group_member.php | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/classes/Group_member.php b/classes/Group_member.php
index 8873942318..d51aa9ff9c 100644
--- a/classes/Group_member.php
+++ b/classes/Group_member.php
@@ -161,8 +161,17 @@ class Group_member extends Managed_DataObject
     function asActivity()
     {
         $member = $this->getMember();
+
+        if (!$member) {
+            throw new Exception("No such member: " . $this->profile_id);
+        }
+
         $group  = $this->getGroup();
 
+        if (!$group) {
+            throw new Exception("No such group: " . $this->group_id);
+        }
+
         $act = new Activity();
 
         $act->id = $this->getURI();