Allow PHP-8.2 and up Compatibility instead of just PHP-8.4

plugins/vendor/illuminate/contracts/Database/ModelIdentifier.php

@@ -2,12 +2,19 @@
 
 namespace Illuminate\Contracts\Database;
 
+use Illuminate\Database\Eloquent\Relations\Relation;
+
 class ModelIdentifier
 {
+    /**
+     * Use the Relation morphMap for a Model's name when serializing.
+     */
+    protected static bool $useMorphMap = false;
+
     /**
      * The class name of the model.
      *
-     * @var class-string<\Illuminate\Database\Eloquent\Model>
+     * @var class-string<\Illuminate\Database\Eloquent\Model>|string|null
      */
     public $class;
 
@@ -44,15 +51,19 @@ class ModelIdentifier
     /**
      * Create a new model identifier.
      *
-     * @param  class-string<\Illuminate\Database\Eloquent\Model>  $class
+     * @param  class-string<\Illuminate\Database\Eloquent\Model>|null  $class
      * @param  mixed  $id
      * @param  array  $relations
      * @param  mixed  $connection
      */
     public function __construct($class, $id, array $relations, $connection)
     {
-        $this->id = $id;
+        if ($class !== null && self::$useMorphMap) {
+            $class = Relation::getMorphAlias($class);
+        }
+
         $this->class = $class;
+        $this->id = $id;
         $this->relations = $relations;
         $this->connection = $connection;
     }
@@ -69,4 +80,26 @@ class ModelIdentifier
 
         return $this;
     }
+
+    /**
+     * Get the fully-qualified class name of the Model.
+     *
+     * @return class-string<\Illuminate\Database\Eloquent\Model>|null
+     */
+    public function getClass(): ?string
+    {
+        if (self::$useMorphMap && $this->class !== null) {
+            return Relation::getMorphedModel($this->class) ?? $this->class;
+        }
+
+        return $this->class;
+    }
+
+    /**
+     * Indicate whether to use the relational morph-map when serializing Models.
+     */
+    public static function useMorphMap(bool $useMorphMap = true): void
+    {
+        static::$useMorphMap = $useMorphMap;
+    }
 }