From 6c663f0b134a58bb8c01a251e89e10156931795c Mon Sep 17 00:00:00 2001
From: Sergey Danilchenko <s.danilchenko@ttbooking.ru>
Date: Thu, 10 Oct 2024 17:12:50 +0200
Subject: [PATCH] [11.x] Fix determining pivot timestamp column name(s) when
 parent relation missing one or both of timestamps

---
 .../Database/Eloquent/Relations/BelongsToMany.php         | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/Illuminate/Database/Eloquent/Relations/BelongsToMany.php b/src/Illuminate/Database/Eloquent/Relations/BelongsToMany.php
index 121abb5b026c..161352c7b613 100755
--- a/src/Illuminate/Database/Eloquent/Relations/BelongsToMany.php
+++ b/src/Illuminate/Database/Eloquent/Relations/BelongsToMany.php
@@ -113,14 +113,14 @@ class BelongsToMany extends Relation
     /**
      * The custom pivot table column for the created_at timestamp.
      *
-     * @var string
+     * @var string|null
      */
     protected $pivotCreatedAt;
 
     /**
      * The custom pivot table column for the updated_at timestamp.
      *
-     * @var string
+     * @var string|null
      */
     protected $pivotUpdatedAt;
 
@@ -1478,7 +1478,7 @@ public function withTimestamps($createdAt = null, $updatedAt = null)
      */
     public function createdAt()
     {
-        return $this->pivotCreatedAt ?: $this->parent->getCreatedAtColumn();
+        return $this->pivotCreatedAt ?? $this->parent->getCreatedAtColumn() ?? Model::CREATED_AT;
     }
 
     /**
@@ -1488,7 +1488,7 @@ public function createdAt()
      */
     public function updatedAt()
     {
-        return $this->pivotUpdatedAt ?: $this->parent->getUpdatedAtColumn();
+        return $this->pivotUpdatedAt ?? $this->parent->getUpdatedAtColumn() ?? Model::UPDATED_AT;
     }
 
     /**