From 2001a93dde426cc6a69165b4df06c76e4f2c9316 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?D=2E=20Nagy=20Gerg=C5=91?= <hello@iamgergo.com>
Date: Thu, 8 Jun 2023 14:37:03 +0200
Subject: [PATCH 1/2] [10.x] Add getForeignKeyFrom method

---
 .../Database/Eloquent/Relations/BelongsTo.php | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/src/Illuminate/Database/Eloquent/Relations/BelongsTo.php b/src/Illuminate/Database/Eloquent/Relations/BelongsTo.php
index d7bfa0f60a17..984d603a2e6f 100755
--- a/src/Illuminate/Database/Eloquent/Relations/BelongsTo.php
+++ b/src/Illuminate/Database/Eloquent/Relations/BelongsTo.php
@@ -74,7 +74,7 @@ public function __construct(Builder $query, Model $child, $foreignKey, $ownerKey
      */
     public function getResults()
     {
-        if (is_null($this->child->{$this->foreignKey})) {
+        if (is_null($this->getForeignKeyFrom($this->child))) {
             return $this->getDefaultFor($this->parent);
         }
 
@@ -94,7 +94,7 @@ public function addConstraints()
             // of the related models matching on the foreign key that's on a parent.
             $table = $this->related->getTable();
 
-            $this->query->where($table.'.'.$this->ownerKey, '=', $this->child->{$this->foreignKey});
+            $this->query->where($table.'.'.$this->ownerKey, '=', $this->getForeignKeyFrom($this->child));
         }
     }
 
@@ -130,7 +130,7 @@ protected function getEagerModelKeys(array $models)
         // to query for via the eager loading query. We will add them to an array then
         // execute a "where in" statement to gather up all of those related records.
         foreach ($models as $model) {
-            if (! is_null($value = $model->{$this->foreignKey})) {
+            if (! is_null($value = $this->getForeignKeyFrom($model))) {
                 $keys[] = $value;
             }
         }
@@ -337,7 +337,7 @@ public function getQualifiedForeignKeyName()
      */
     public function getParentKey()
     {
-        return $this->child->{$this->foreignKey};
+        return $this->getForeignKeyFrom($this->child);
     }
 
     /**
@@ -371,6 +371,17 @@ protected function getRelatedKeyFrom(Model $model)
         return $model->{$this->ownerKey};
     }
 
+    /**
+     * Get the value of the model's associated key.
+     *
+     * @param  \Illuminate\Database\Eloquent\Model  $model
+     * @return mixed
+     */
+    protected function getForeignKeyFrom(Model $model)
+    {
+        return $model->{$this->foreignKey};
+    }
+
     /**
      * Get the name of the relationship.
      *

From d72430ddac2577f854b8d04855b711c35c86c6a2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?D=2E=20Nagy=20Gerg=C5=91?= <hello@iamgergo.com>
Date: Thu, 8 Jun 2023 14:37:58 +0200
Subject: [PATCH 2/2] fix comment

---
 src/Illuminate/Database/Eloquent/Relations/BelongsTo.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Illuminate/Database/Eloquent/Relations/BelongsTo.php b/src/Illuminate/Database/Eloquent/Relations/BelongsTo.php
index 984d603a2e6f..f2ecbb3bf070 100755
--- a/src/Illuminate/Database/Eloquent/Relations/BelongsTo.php
+++ b/src/Illuminate/Database/Eloquent/Relations/BelongsTo.php
@@ -372,7 +372,7 @@ protected function getRelatedKeyFrom(Model $model)
     }
 
     /**
-     * Get the value of the model's associated key.
+     * Get the value of the model's foreign key.
      *
      * @param  \Illuminate\Database\Eloquent\Model  $model
      * @return mixed