app/Http/Controllers/MarhunController.php

@@ -3,6 +3,7 @@
 namespace App\Http\Controllers;
 
 use App\Marhun;
+use App\Gadai;
 use App\Jemas;
 use App\Cawangan;
 use Illuminate\Http\Request;
@@ -160,7 +161,10 @@ class MarhunController extends Controller
 
         $cawangan = Cawangan::on('mysql7')->where('kodcaw','=',$kodcaw)->first();
 
-        $old_data = Marhun::on($cawangan['mysql'])->where([['recno','=',$request->recno],['norujukan','=',$norujukan]])->first();
+        // Lock the parent first so concurrent edits to this SAG are serialized.
+        (new Marhun)->setConnection($cawangan['mysql'])->getConnection()->transaction(function () use ($cawangan, $norujukan, $request, $harga, $nilai_marhun, $kodcaw, $current) {
+            Gadai::on($cawangan['mysql'])->where('norujukan', $norujukan)->lockForUpdate()->firstOrFail();
+            $old_data = Marhun::on($cawangan['mysql'])->where([['recno','=',$request->recno],['norujukan','=',$norujukan]])->firstOrFail();
 
             $marhunToUpdate = [
                 'karat' => $request->karat,
@@ -181,6 +185,16 @@ class MarhunController extends Controller
 
             $jemas = Marhun::on($cawangan['mysql'])->where([['recno','=',$request->recno],['norujukan','=',$norujukan]])->update($marhunToUpdate);
 
+            // Recalculate from every item belonging to this SAG, after the edit.
+            $totals = Marhun::on($cawangan['mysql'])->where('norujukan', $norujukan)
+                ->selectRaw('COALESCE(SUM(berat), 0) AS total_berat, COALESCE(SUM(n_marhun), 0) AS total_nilai, COALESCE(SUM(bil), 0) AS total_kuantiti')
+                ->first();
+            Gadai::on($cawangan['mysql'])->where('norujukan', $norujukan)->update([
+                'berat' => $totals->total_berat,
+                'nilaimarhun' => $totals->total_nilai,
+                'kuantiti' => $totals->total_kuantiti,
+            ]);
+
             $new_data = Marhun::on($cawangan['mysql'])->where([['recno','=',$request->recno],['norujukan','=',$norujukan]])->first();
 
             $audit = new Audit();
@@ -193,6 +207,7 @@ class MarhunController extends Controller
             $audit->created_at = $current;
             $audit->updated_at = $current;
             $audit->save();
+        });
 
         return response('Edit Successfully', 200);
     }