fix redirect page

app/Views/user/login.php

@@ -1,25 +1,10 @@
-<?php
-
-use CodeIgniter\Exceptions\PageNotFoundException;
-
-if (!function_exists('base_url')) {
-    throw new PageNotFoundException('base_url function not found');
-}
-
-$session = session();
-
-if ($session->get('isLoggedIn')) {
-    header('Location: ' . base_url('/dashboard'));
-    exit();
-}
-?>
-
 <?= $this->extend('layout/register_layout') ?>
 <?= $this->section('content') ?>
 <div class="registration-form container mt-5 mb-5">
 
     <form id="loginForm" method="post" action="<?= base_url('/user/login') ?>">
         <?= csrf_field() ?>
+        <input type="hidden" name="redirect_to" value="<?= esc(old('redirect_to', $redirect_to ?? '')) ?>">
         <div class="text-center mb-4">
             <a href="<?= base_url('/') ?>">
                 <img src="<?= base_url('assets/images/alrahma_logo.png') ?>" alt=""
@@ -60,9 +45,9 @@ if ($session->get('isLoggedIn')) {
             <button type="submit" class="btn btn-success item">Login</button>
         </div>
         <!-- Flash Error Message -->
-        <?php if ($session->getFlashdata('error')): ?>
+        <?php if (session()->getFlashdata('error')): ?>
             <div class="alert alert-danger mt-3 text-center" role="alert">
-                <?= esc($session->getFlashdata('error')) ?>
+                <?= esc(session()->getFlashdata('error')) ?>
             </div>
         <?php endif; ?>
         <!-- Forgot Password -->
@@ -125,4 +110,4 @@ if ($session->get('isLoggedIn')) {
         }
     });
 </script>
-<?= $this->endSection() ?>
+<?= $this->endSection() ?>