example directory added. readme file updated.

example/Common.php

@@ -0,0 +1,19 @@
+<?php
+
+/**
+ * The goal of this file is to allow developers a location
+ * where they can overwrite core procedural functions and
+ * replace them with their own. This file is loaded during
+ * the bootstrap process and is called during the frameworks
+ * execution.
+ *
+ * This can be looked at as a `master helper` file that is
+ * loaded early on, and may also contain additional functions
+ * that you'd like to use throughout your entire application
+ *
+ * @link: https://codeigniter4.github.io/CodeIgniter4/
+ */
+
+function show_404(){
+    throw \CodeIgniter\Exceptions\PageNotFoundException::forPageNotFound();
+}

example/app/Config/Filters.php

@@ -0,0 +1,76 @@
+<?php
+
+namespace Config;
+
+use CodeIgniter\Config\BaseConfig;
+use CodeIgniter\Filters\CSRF;
+use CodeIgniter\Filters\DebugToolbar;
+use CodeIgniter\Filters\Honeypot;
+use CodeIgniter\Filters\InvalidChars;
+use CodeIgniter\Filters\SecureHeaders;
+
+class Filters extends BaseConfig
+{
+    /**
+     * Configures aliases for Filter classes to
+     * make reading things nicer and simpler.
+     *
+     * @var array
+     */
+    public $aliases = [
+        'csrf' => CSRF::class,
+        'toolbar' => DebugToolbar::class,
+        'honeypot' => Honeypot::class,
+        'invalidchars' => InvalidChars::class,
+        'secureheaders' => SecureHeaders::class,
+    ];
+
+    /**
+     * List of filter aliases that are always
+     * applied before and after every request.
+     *
+     * @var array
+     */
+    public $globals = [
+        'before' => [
+            'honeypot',
+            //if csrf is active you must make whitelist.
+            'csrf' => ['except' => ['addBasket',
+                'updateBasket',
+                'removeBasketOne',
+                'emptyTheBasket']],
+            // 'invalidchars',
+        ],
+        'after' => [
+            'toolbar',
+            'honeypot',
+            // 'secureheaders',
+        ],
+    ];
+
+    /**
+     * List of filter aliases that works on a
+     * particular HTTP method (GET, POST, etc.).
+     *
+     * Example:
+     * 'post' => ['foo', 'bar']
+     *
+     * If you use this, you should disable auto-routing because auto-routing
+     * permits any HTTP method to access a controller. Accessing the controller
+     * with a method you don’t expect could bypass the filter.
+     *
+     * @var array
+     */
+    public $methods = [];
+
+    /**
+     * List of filter aliases that should run on any
+     * before or after URI patterns.
+     *
+     * Example:
+     * 'isLoggedIn' => ['before' => ['account/*', 'profiles/*']]
+     *
+     * @var array
+     */
+    public $filters = [];
+}

example/app/Config/Routes.php

@@ -0,0 +1,55 @@
+<?php namespace Config;
+
+// Create a new instance of our RouteCollection class.
+$routes = Services::routes();
+
+// Load the system's routing file first, so that the app and ENVIRONMENT
+// can override as needed.
+if (is_file(SYSTEMPATH . 'Config/Routes.php')) {
+    require SYSTEMPATH . 'Config/Routes.php';
+}
+
+/**
+ * --------------------------------------------------------------------
+ * Router Setup
+ * --------------------------------------------------------------------
+ */
+$routes->setDefaultNamespace('App\Controllers');
+$routes->setDefaultController('Home');
+$routes->setDefaultMethod('index');
+$routes->setTranslateURIDashes(false);
+$routes->set404Override();
+
+/**
+ * --------------------------------------------------------------------
+ * Route Definitions
+ * --------------------------------------------------------------------
+ */
+
+// We get a performance increase by specifying the default
+// route since we don't have to scan directories.
+$routes->add('/', 'Home::index');
+$routes->get('productList', 'Home::productList');
+$routes->get('basket','Product::basket');
+$routes->post('successfullBasket','Product::successfullBasket',['as'=>'successfullBasket']);
+$routes->post('addBasket','Product::addBasket');
+$routes->post('updateBasket','Product::updateBasket');
+$routes->post('removeBasketOne','Product::removeBasketOne');
+$routes->post('emptyTheBasket','Product::emptyTheBasket');
+
+/**
+ * --------------------------------------------------------------------
+ * Additional Routing
+ * --------------------------------------------------------------------
+ *
+ * There will often be times that you need additional routing and you
+ * need it to be able to override any defaults in this file. Environment
+ * based routes is one such time. require() additional route files here
+ * to make that happen.
+ *
+ * You will have access to the $routes object within that file without
+ * needing to reload it.
+ */
+if (is_file(APPPATH . 'Config/' . ENVIRONMENT . '/Routes.php')) {
+    require APPPATH . 'Config/' . ENVIRONMENT . '/Routes.php';
+}

example/app/Controllers/BaseController.php

@@ -0,0 +1,57 @@
+<?php
+namespace App\Controllers;
+/**
+ * Class BaseController
+ *
+ * BaseController provides a convenient place for loading components
+ * and performing functions that are needed by all your controllers.
+ * Extend this class in any new controllers:
+ *     class Home extends BaseController
+ *
+ * For security be sure to declare any new methods as protected or private.
+ *
+ * @package CodeIgniter
+ */
+
+use ci4shoppingcart\Libraries\Cart;
+use CodeIgniter\Controller;
+use CodeIgniter\HTTP\CLIRequest;
+use CodeIgniter\HTTP\IncomingRequest;
+use CodeIgniter\HTTP\RequestInterface;
+use CodeIgniter\HTTP\ResponseInterface;
+use Psr\Log\LoggerInterface;
+
+abstract class BaseController extends Controller
+{
+    /**
+     * Instance of the main Request object.
+     *
+     * @var CLIRequest|IncomingRequest
+     */
+    protected $request;
+
+	/**
+	 * An array of helpers to be loaded automatically upon
+	 * class instantiation. These helpers will be available
+	 * to all other controllers that extend BaseController.
+	 *
+	 * @var array
+	 */
+	protected $helpers = [];
+    public $defData;
+	/**
+	 * Constructor.
+	 */
+    public function initController(RequestInterface $request, ResponseInterface $response, LoggerInterface $logger)
+	{
+		// Do Not Edit This Line
+        parent::initController($request, $response, $logger);
+
+		//--------------------------------------------------------------------
+		// Preload any models, libraries, etc, here.
+		//--------------------------------------------------------------------
+		// E.g.:
+		// $this->session = \Config\Services::session();
+        $this->defData=['cart'=>new Cart()];
+	}
+}

example/app/Controllers/Home.php

@@ -0,0 +1,31 @@
+<?php namespace App\Controllers;
+
+use CodeIgniter\API\ResponseTrait;
+
+class Home extends BaseController
+{
+    use ResponseTrait;
+
+    public function productList()
+    {
+        $this->defData['products'] =
+            [
+            ['id' => 1,
+                'productTitle' => 'NortPas Şınav Tahtası',
+                'productCategory' => 'Spor Malzemeleri',
+                'price'=>24,
+                'stock' => 34],
+            ['id' => 2,
+                'productTitle' => 'HP Pavilion G135',
+                'productCategory' => 'Laptop',
+                'price'=>47,
+                'stock' => 3],
+            ['id' => 3,
+                'productTitle' => 'Logitech Sessiz Fare',
+                'productCategory' => 'Mouse',
+                'price'=>8,
+                'stock' => 90]
+        ];
+        return view('products/productList', $this->defData);
+    }
+}

example/app/Controllers/Product.php

@@ -0,0 +1,95 @@
+<?php namespace App\Controllers;
+
+use App\Controllers\BaseController;
+use App\Models\CommonModel;
+use CodeIgniter\API\ResponseTrait;
+
+class Product extends BaseController
+{
+    use ResponseTrait;
+
+    public function basket()
+    {
+        return view('products/basket', $this->defData);
+    }
+
+    public function addBasket()
+    {
+        if ($this->request->isAJAX()) {
+            $basket = ['id' => $this->request->getPost('id'),
+                'qty' => $this->request->getPost('qty'),
+                'price' => $this->request->getPost('price'),
+                'name' => $this->request->getPost('title')];
+            if ($this->defData['cart']->insert($basket))
+                return $this->showCart();
+            else
+                return 'ürün sepete eklenemedi.';
+        } else return show_404();
+    }
+
+    public function updateBasket()
+    {
+        if ($this->request->isAJAX()) {
+            $basket = ['rowid' => $this->request->getPost('rowid'),
+                'qty' => $this->request->getPost('qty')];
+            if ($this->defData['cart']->update($basket))
+                return $this->showCart();
+        } else return show_404();
+    }
+
+    public function removeBasketOne()
+    {
+        if ($this->request->isAJAX()) {
+            if ($this->defData['cart']->remove($this->request->getPost('rowid')))
+                return $this->showCart();
+        } else return show_404();
+    }
+
+    public function emptyTheBasket()
+    {
+        if ($this->request->isAJAX()) {
+            return $this->defData['cart']->destroy();
+        } else return show_404();
+    }
+
+    private function showCart()
+    {
+        $carts = $this->defData['cart']->contents();
+        $array = [];
+        foreach ($carts as $cart) {
+            $array['carts'][$cart['rowid']] = [
+                'id' => $cart['id'],
+                'qty' => $cart['qty'],
+                'price' => $this->defData['cart']->format_number($cart['price']),
+                'name' => $cart['name'],
+                'subtotal' => $this->defData['cart']->format_number($cart['subtotal']),
+                'rowid' => $cart['rowid']
+            ];
+        }
+        $array['count'] = count($array['carts']);
+
+        return $this->respondCreated($array);
+    }
+
+
+    public function successfullBasket()
+    {
+            $commonModel = new CommonModel();
+            $pnr=$this->generateActivateHash(4);
+            foreach ($this->defData['cart']->contents() as $item) {
+                $data = ['productPnr' => $pnr,
+                    'productTitle'=>$item['name'],
+                    'price'=>$item['price'],
+                    'qty'=>$item['qty'],
+                    'subtotal'=>$item['subtotal']];
+                $commonModel->create('products', $data);
+            }
+            $this->defData['cart']->destroy();
+            return view('products/success', $this->defData);
+    }
+
+    public function generateActivateHash($bit = 16)
+    {
+        return bin2hex(random_bytes($bit));
+    }
+}