From 21ba09db74bfb9fa281b8a192be809768ed6f971 Mon Sep 17 00:00:00 2001
From: ErickRyu <erick@innosonian.com>
Date: Wed, 17 Jul 2024 17:01:48 +0900
Subject: [PATCH] Add null coalescing for startDateTime and endDateTime in
 LTI_Lineitem

---
 src/lti/LTI_Lineitem.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/lti/LTI_Lineitem.php b/src/lti/LTI_Lineitem.php
index ba8e20a7..8608970a 100644
--- a/src/lti/LTI_Lineitem.php
+++ b/src/lti/LTI_Lineitem.php
@@ -19,8 +19,8 @@ public function __construct(array $lineitem = null) {
         $this->label = $lineitem["label"];
         $this->resource_id = $lineitem["resourceId"];
         $this->tag = $lineitem["tag"];
-        $this->start_date_time = $lineitem["startDateTime"];
-        $this->end_date_time = $lineitem["endDateTime"];
+        $this->start_date_time = $lineitem["startDateTime"] ?? null;
+        $this->end_date_time = $lineitem["endDateTime"] ?? null;
     }
 
     /**