Update besar apk finance

application/libraries/TransactionService.php

@@ -0,0 +1,29 @@
+<?php
+defined('BASEPATH') OR exit('No direct script access allowed');
+
+class TransactionService
+{
+    private $CI;
+
+    public function __construct()
+    {
+        $this->CI =& get_instance();
+    }
+
+    public function run(callable $callback)
+    {
+        $this->CI->db->trans_begin();
+
+        try {
+            $result = $callback();
+            if ($this->CI->db->trans_status() === false) {
+                throw new RuntimeException('Operasi database gagal.');
+            }
+            $this->CI->db->trans_commit();
+            return $result;
+        } catch (Throwable $exception) {
+            $this->CI->db->trans_rollback();
+            throw $exception;
+        }
+    }
+}