Added panel gr master resource pages

app/Filament/Resources/PanelGrMasterResource/Pages/CreatePanelGrMaster.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace App\Filament\Resources\PanelGrMasterResource\Pages;
+
+use App\Filament\Resources\PanelGrMasterResource;
+use App\Models\PanelGrMaster;
+use Filament\Actions;
+use Filament\Notifications\Notification;
+use Filament\Resources\Pages\CreateRecord;
+use Illuminate\Validation\ValidationException;
+
+class CreatePanelGrMaster extends CreateRecord
+{
+    protected static string $resource = PanelGrMasterResource::class;
+
+    protected function mutateFormDataBeforeCreate(array $data): array
+    {
+        $exists = PanelGrMaster::where('plant_id', $data['plant_id'])
+            ->where('item_id', $data['item_id'])
+            ->where('document_number', $data['document_number'])
+            ->where('invoice_number', $data['invoice_number'])
+            ->where('supplier_number', $data['supplier_number'])
+            ->exists();
+
+        if ($exists) {
+            Notification::make()
+            ->title('Duplicate Record')
+            ->body('This combination already exists in Master.')
+            ->danger()
+            ->send();
+            throw ValidationException::withMessages([
+                'item_id' => 'This combination already exists in Master.',
+            ]);
+        }
+
+        return $data;
+    }
+}