diff --git a/app/Item.php b/app/Item.php
index 569040fa..f490a9ff 100644
--- a/app/Item.php
+++ b/app/Item.php
@@ -11,7 +11,7 @@ class Item extends Model implements HasMedia
 {
     use HasMediaTrait;
 
-    public $fillable = [ 'name' , 'size' , 'unique_id' , 'specific' , 'note' , 'user_id' , 'udi' , 'status' , 'repair' , 'package_id'  , 'creator_id' ];
+    public $fillable = [ 'name' , 'size' , 'unique_id' , 'specific' , 'note' , 'user_id' , 'udi' , 'status' , 'repair' , 'package_id' , 'creator_id' ];
 
     public function package()
     {
@@ -59,4 +59,11 @@ class Item extends Model implements HasMedia
             ->nonQueued()
             ->performOnCollections( 'images' );
     }
+
+    protected static function getValidCollections(): array
+    {
+        return [
+            'images' ,
+        ];
+    }
 }
diff --git a/app/Services/Media/HasMediaTrait.php b/app/Services/Media/HasMediaTrait.php
index 2027c50f..65805084 100644
--- a/app/Services/Media/HasMediaTrait.php
+++ b/app/Services/Media/HasMediaTrait.php
@@ -17,4 +17,14 @@ trait HasMediaTrait
     {
         return $this->morphMany(Media::class, 'model')->where('collection_name', 'main_images');
     }
+
+    public static function isValidMediaCollection(string $collectionName): bool
+    {
+        return in_array($collectionName, static::getValidCollections());
+    }
+
+    protected static function getValidCollections(): array
+    {
+        return [];
+    }
 }
diff --git a/app/Services/Media/UrlGenerator/S3UrlGenerator.php b/app/Services/Media/UrlGenerator/S3UrlGenerator.php
index 478bcb60..b2316848 100644
--- a/app/Services/Media/UrlGenerator/S3UrlGenerator.php
+++ b/app/Services/Media/UrlGenerator/S3UrlGenerator.php
@@ -5,7 +5,6 @@ namespace App\Services\Media\UrlGenerator;
 use DateTimeInterface;
 use Spatie\MediaLibrary\UrlGenerator\BaseUrlGenerator;
 
-
  class S3UrlGenerator extends BaseUrlGenerator
 {
     /**