From 69cc0f3c25bf71bf39c325fb1670c5c0a9197d65 Mon Sep 17 00:00:00 2001
From: Sebastian Serth <Sebastian.Serth@hpi.de>
Date: Wed, 20 Sep 2023 23:53:35 +0200
Subject: [PATCH] Retry storing LTI data on invalid record

We might receive a `RecordInvalid` error, if one part (such as the external user) is already assigned (not unique). Hence, we just retry.

Fixes CODEOCEAN-TZ
---
 app/controllers/concerns/lti.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/controllers/concerns/lti.rb b/app/controllers/concerns/lti.rb
index 53066ae0..6437b731 100644
--- a/app/controllers/concerns/lti.rb
+++ b/app/controllers/concerns/lti.rb
@@ -226,7 +226,7 @@ module Lti
     @lti_parameters.save!
 
     session[:external_user_id] = current_user.id
-  rescue ActiveRecord::RecordNotUnique
+  rescue ActiveRecord::RecordNotUnique, ActiveRecord::RecordInvalid
     retry
   end