From 014b00bc30feb88b91fd966d3174a73d8d72de8a Mon Sep 17 00:00:00 2001
From: FreneticScribbler <aj@aronajones.com>
Date: Thu, 4 Nov 2021 23:01:41 +0000
Subject: [PATCH] Fallback for pk being null on event display ID

This should never happen, but it is...though only in live, so I need to push this up for testing. Ref  #451
---
 RIGS/models.py | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/RIGS/models.py b/RIGS/models.py
index d900be77..c45a9134 100644
--- a/RIGS/models.py
+++ b/RIGS/models.py
@@ -343,10 +343,13 @@ class Event(models.Model, RevisionMixin):
 
     @property
     def display_id(self):
-        if self.is_rig:
-            return str("N%05d" % self.pk)
+        if self.pk:
+            if self.is_rig:
+                return str("N%05d" % self.pk)
+            else:
+                return self.pk
         else:
-            return self.pk
+            return "????"
 
     # Calculated values
     """