Merge pull request #5348 from kenjis/fix-docs-tutorial

docs: improve Tutorial

Author: lonnieezell

user_guide_src/source/tutorial/create_news_items.rst

@@ -33,6 +33,7 @@ the slug from our title in the model. Create a new view at
 
     <h2><?= esc($title) ?></h2>
 
+    <?= session()->getFlashdata('error') ?>
     <?= service('validation')->listErrors() ?>
 
     <form action="/news/create" method="post">
@@ -47,10 +48,15 @@ the slug from our title in the model. Create a new view at
         <input type="submit" name="submit" value="Create news item" />
     </form>
 
-There are probably only two things here that look unfamiliar. The
-``service('validation')->listErrors()`` function is used to report
-errors related to form validation. The ``csrf_field()`` function creates
-a hidden input with a CSRF token that helps protect against some common attacks.
+There are probably only three things here that look unfamiliar.
+
+The ``<?= session()->getFlashdata('error') ?>`` function is used to report
+errors related to CSRF protection.
+
+The ``service('validation')->listErrors()`` function is used to report
+errors related to form validation.
+
+The ``csrf_field()`` function creates a hidden input with a CSRF token that helps protect against some common attacks.
 
 Go back to your ``News`` controller. You're going to do two things here,
 check whether the form was submitted and whether the submitted data

user_guide_src/source/tutorial/static_pages.rst

@@ -39,9 +39,7 @@ code.
 
     namespace App\Controllers;
 
-    use CodeIgniter\Controller;
-
-    class Pages extends Controller
+    class Pages extends BaseController
     {
         public function index()
         {
@@ -66,7 +64,7 @@ displays the CodeIgniter welcome page.
     Both are *technically* a function. But when you create a function in a class,
     it's called a method.
 
-The ``Pages`` class is extending the
+The ``Pages`` class is extending the ``BaseController`` class that extends the
 ``CodeIgniter\Controller`` class. This means that the new Pages class can access the
 methods and variables defined in the ``CodeIgniter\Controller`` class
 (**system/Controller.php**).