change TorrentExtra.pt_gen setter/getter

app/Models/TorrentExtra.php

@@ -2,6 +2,7 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Casts\Attribute;
 use Nexus\Database\NexusDB;
 use Nexus\Torrent\TechnicalInformation;
 
@@ -11,9 +12,23 @@ class TorrentExtra extends NexusModel
 
     protected $fillable = ['torrent_id', 'descr', 'ori_descr', 'media_info', 'nfo', 'pt_gen'];
 
-    protected $casts = [
+    protected function ptGen(): Attribute
-        'pt_gen' => 'array',
+    {
-    ];
+        return Attribute::make(
+            get: function ($value) {
+                $jsonDecoded = json_decode($value, true);
+                if (is_array($jsonDecoded)) {
+                    return $jsonDecoded;
+                } else {
+                    return $value;
+                }
+            },
+            set: function ($value) {
+                return is_array($value) ? json_encode($value) : $value;
+            }
+        );
+    }
+
 
     public function torrent()
     {