优化渠道导出优惠券

app/Merchant/Controllers/Coupon/IndexController.php

@@ -242,6 +242,9 @@ class IndexController extends Controller
     //导出数据
     public function excel($request, $user)
     {
+        if (!$request->end) {
+            $request->end = now()->toDateTimeString();
+        }
         set_time_limit(1200);
         ini_set('memory_limit', '1024M');
         $filename = '卡券记录' . date('YmdHis') . '.csv';
@@ -278,7 +281,7 @@ class IndexController extends Controller
                   ->when($request->end, function ($query) use ($request) {
                       $query->where('created_at', '<', $request->end);
                   })
-                  ->orderBy('created_at', 'desc')
+                  ->latest()
                   ->chunk(5000, function ($coupons) use ($handle) {
                       foreach ($coupons as $index => $info) {
                           fputcsv($handle, [