From be5e477379d7c87a018ccf4fdb085f547a8c32d0 Mon Sep 17 00:00:00 2001
From: netzknecht <38781482+netzknecht@users.noreply.github.com>
Date: Fri, 27 Oct 2023 11:10:17 +0200
Subject: [PATCH] Bugfix for issue #46247, #28029 and related

https://github.com/laravel/framework/issues/46247
https://github.com/laravel/framework/pull/28029
---
 .../Eloquent/Concerns/HasAttributes.php       | 14 +++++---
 src/Illuminate/Support/helpers.php            | 33 +++++++++++++++++++
 2 files changed, 43 insertions(+), 4 deletions(-)

diff --git a/src/Illuminate/Database/Eloquent/Concerns/HasAttributes.php b/src/Illuminate/Database/Eloquent/Concerns/HasAttributes.php
index d4f86c52c2be..b3e22ea93f0c 100644
--- a/src/Illuminate/Database/Eloquent/Concerns/HasAttributes.php
+++ b/src/Illuminate/Database/Eloquent/Concerns/HasAttributes.php
@@ -2071,8 +2071,7 @@ public function originalIsEquivalent($key)
             return $this->fromDateTime($attribute) ===
                 $this->fromDateTime($original);
         } elseif ($this->hasCast($key, ['object', 'collection'])) {
-            return $this->fromJson($attribute) ===
-                $this->fromJson($original);
+            return $this->diffJson($attribute, $original);
         } elseif ($this->hasCast($key, ['real', 'float', 'double'])) {
             if ($original === null) {
                 return false;
@@ -2083,11 +2082,13 @@ public function originalIsEquivalent($key)
             return $this->castAttribute($key, $attribute) ===
                 $this->castAttribute($key, $original);
         } elseif ($this->isClassCastable($key) && Str::startsWith($this->getCasts()[$key], [AsArrayObject::class, AsCollection::class])) {
-            return $this->fromJson($attribute) === $this->fromJson($original);
+            return $this->diffJson($attribute, $original);
         } elseif ($this->isClassCastable($key) && Str::startsWith($this->getCasts()[$key], [AsEnumArrayObject::class, AsEnumCollection::class])) {
-            return $this->fromJson($attribute) === $this->fromJson($original);
+            return $this->diffJson($attribute, $original);
         } elseif ($this->isClassCastable($key) && $original !== null && Str::startsWith($this->getCasts()[$key], [AsEncryptedArrayObject::class, AsEncryptedCollection::class])) {
             return $this->fromEncryptedString($attribute) === $this->fromEncryptedString($original);
+        } elseif ($this->isClassCastable($key) && $this->resolveCasterClass($key) instanceof Json) {
+            return $this->diffJson($attribute, $original);
         }
 
         return is_numeric($attribute) && is_numeric($original)
@@ -2254,4 +2255,9 @@ protected static function getAttributeMarkedMutatorMethods($class)
             return false;
         })->map->name->values()->all();
     }
+
+    private function diffJson($attribute, $original)
+    {
+        return !count(array_diff_assoc_recursive($this->fromJson($attribute), $this->fromJson($original)));
+    }
 }
diff --git a/src/Illuminate/Support/helpers.php b/src/Illuminate/Support/helpers.php
index 11348fa4f296..d8c53c188d03 100755
--- a/src/Illuminate/Support/helpers.php
+++ b/src/Illuminate/Support/helpers.php
@@ -432,3 +432,36 @@ function with($value, callable $callback = null)
         return is_null($callback) ? $value : $callback($value);
     }
 }
+
+if (!function_exists('array_diff_assoc_recursive')) {
+    /**
+     * Computes the difference between two arrays with additional index check recursively
+     * 
+     * @link https://gist.github.com/tulik/30550e91c641c9a7564a407b691983ad
+     * 
+     * @param mixed $array1
+     * @param mixed $array2
+     * @return array
+     */
+    function array_diff_assoc_recursive($array1, $array2)
+    {
+        $difference = array();
+
+        foreach ($array1 as $key => $value) {
+            if (is_array($value)) {
+                if (!isset($array2[$key]) || !is_array($array2[$key])) {
+                    $difference[$key] = $value;
+                } else {
+                    $new_diff = array_diff_assoc_recursive($value, $array2[$key]);
+                    if (!empty($new_diff)) {
+                        $difference[$key] = $new_diff;
+                    }
+                }
+            } elseif (!array_key_exists($key, $array2) || $array2[$key] !== $value) {
+                $difference[$key] = $value;
+            }
+        }
+
+        return $difference;
+    }
+}
\ No newline at end of file