From f6d00383cbc96ab0e00e49bebd5b32cb9f638306 Mon Sep 17 00:00:00 2001
From: Edmondlang <edmond_wuiming@hotmail.com>
Date: Wed, 16 Apr 2025 14:40:07 +0800
Subject: [PATCH]  Safely clean output buffer only if it's started and not
 already cleaned

---
 .../ExportCustomersToExcelController.php       | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/app/Http/Controllers/Exports/ExportCustomersToExcelController.php b/app/Http/Controllers/Exports/ExportCustomersToExcelController.php
index 27fcef03..e057d104 100644
--- a/app/Http/Controllers/Exports/ExportCustomersToExcelController.php
+++ b/app/Http/Controllers/Exports/ExportCustomersToExcelController.php
@@ -60,14 +60,20 @@ class ExportCustomersToExcelController
         }
     }
 
-    public function groupTransaction(Request $request){
-        $exportsTransactions = new ExportsGroupTransactions($request);
-        $response = $exportsTransactions->download('group-transactions.xls', Excel::XLS, ['Content-Type' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet']);
-        // Safely clean output buffer if it exists
-        if (ob_get_level()) {
+    public function groupTransaction(Request $request)
+    {
+        // Safely clean output buffer only if it's started and not already cleaned
+        while (ob_get_level() > 0) {
             ob_end_clean();
         }
-        return $response;
+
+        $exportsTransactions = new ExportsGroupTransactions($request);
+
+        return $exportsTransactions->download(
+            'group-transactions.xls',
+            \Maatwebsite\Excel\Excel::XLS,
+            ['Content-Type' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet']
+        );
     }
 
     public function totalOrders(Request $request){