From 605941ddd24decf737b92246c7b24fee854bf145 Mon Sep 17 00:00:00 2001
From: Mohamed Kamel <muhamed.kamel.elsayed@gmail.com>
Date: Sat, 25 Nov 2023 14:27:54 +0200
Subject: [PATCH] Fix backward compatibility

---
 src/Relations/BelongsToThrough.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Relations/BelongsToThrough.php b/src/Relations/BelongsToThrough.php
index ab2b6db..c7db745 100644
--- a/src/Relations/BelongsToThrough.php
+++ b/src/Relations/BelongsToThrough.php
@@ -155,7 +155,7 @@ public function getLocalKeyName(Model $model = null): string
             return $this->localKeyLookup[$table];
         }
 
-        return 'id';
+        return $model->getKeyName();
     }
 
     /**
@@ -359,7 +359,9 @@ public function getFirstForeignKeyName()
      */
     public function getQualifiedFirstLocalKeyName()
     {
-        return end($this->throughParents)->qualifyColumn($this->getLocalKeyName(end($this->throughParents)));
+        $lastThroughParent = end($this->throughParents);
+
+        return $lastThroughParent->qualifyColumn($this->getLocalKeyName($lastThroughParent));
     }
 
     /**