stan errors

app/Modules/VisaMasterPaymentOrder/Nova/Resources/Concerns/VisaMasterPaymentOrderFieldsForIndex.php

@@ -3,6 +3,7 @@
 namespace App\Modules\VisaMasterPaymentOrder\Nova\Resources\Concerns;
 
 use App\Modules\VisaMasterPaymentOrder\Models\VisaMasterPaymentOrder;
+use App\Modules\VisaMasterPaymentOrder\Nova\Resources\NovaVisaMasterPaymentOrder;
 use App\Nova\Resources\Branch\Branch;
 use App\Repos\Order\OrderRepo;
 use App\Repos\System\Settings\Location\RegionRepo;
@@ -17,8 +18,10 @@ class VisaMasterPaymentOrderFieldsForIndex
 {
     /**
      * Loan Order fields for "create"
+     *
+     * @return array<int, \Laravel\Nova\Fields\Field>
      */
-    public static function make($resource, $date = null): array
+    public static function make(NovaVisaMasterPaymentOrder $resource): array
     {
         return [
             ID::make()->hide(),
@@ -63,7 +66,10 @@ class VisaMasterPaymentOrderFieldsForIndex
                 ->sortable(),
 
             Text::make(sprintf('%s (%s)', __('Paid'), __('This month')), function () use ($resource) {
-                return static::paidField($resource, $resource->filter_month);
+                return static::paidField(
+                    $resource,
+                    $resource->offsetExists('filter_month') ? $resource->offsetGet('filter_month') : null
+                );
             }),
         ];
     }
@@ -71,13 +77,16 @@ class VisaMasterPaymentOrderFieldsForIndex
     /**
      * Paid field
      */
-    public static function paidField($resource, $date = null)
+    public static function paidField(NovaVisaMasterPaymentOrder $resource, ?string $date = null): string
     {
-        $paid = false;
-        $items = $resource->paymentItems;
+        /** @var \App\Modules\VisaMasterPaymentOrder\Models\VisaMasterPaymentOrder */
+        $model = $resource->model();
+
+        $items = $model->paymentItems;
 
         $month = $date ?: date('m');
 
+        $paid = false;
         foreach ($items as $item) {
             if (boolval($item->paid)) {
                 if ($item->created_at->format('m') == $month) {