Fix multilple file input bug once and for all

src/View/Components/Form/Concerns/InteractsWithFormField.php

@@ -38,8 +38,22 @@ trait InteractsWithFormField
 
     public function render(): View
     {
+        $multipleInputFileHasError = false;
 
-        if (session('errors')?->has($this->name)) {
+        if(isset($this->type) && isset($this->multiple)) {
+            if($this->type === 'file' && $this->multiple) {
+                if(session('errors') !== null)
+                {
+                    foreach (session('errors')->getMessages() as $key => $error) {
+                        if (str_starts_with($key, rtrim($this->name, '[]') . '.')) {
+                            $multipleInputFileHasError = true;
+                        }
+                    }
+                }
+
+            }
+        }
+        if(session('errors')?->has($this->name) || $multipleInputFileHasError) {
             $this->inputClasses .= ' input-error';
         }
         if($this->readonly)

src/View/Components/Form/Input.php

@@ -19,6 +19,7 @@ class Input extends Component
      * @param  bool  $required
      * @param  bool  $disabled
      * @param  bool  $readonly Will act as disabled, but keep an HTML-sendable value
+     * @param  bool  $multiple If true, the input will be a multiple file upload input.
      * @param  string  $gridLayout The form section component offers a grid of 12 columns. Adjust this parameter as needed.
      * @param  mixed|null  $value
      * @param  mixed|null  $model If $model->$name exists, you can just set the model instead of a value.
@@ -33,6 +34,7 @@ class Input extends Component
         public bool $required = false,
         public bool $disabled = false,
         public bool $readonly = false,
+        public bool $multiple = false,
         public string $gridLayout = '',
         public mixed $value = null,
         public mixed $model = null,