Apa itu Pemrograman HMVC di CodeIgniter 4?
CodeIgniter adalah framework berbasis php dan bekerja pada pola MVC (Model-View-Controller). Bisa juga menggunakan Hierarchical Model View Controller (HMVC).
HMVC adalah singkatan dari Hierarchical Model View Controller. Pola ini biasa digunakan untuk pengembangan aplikasi sekala besar.
Gambarannya sbb :
Persiapan
Buat folder Modules di project root
Registrasi Module
Buka file /app/Config/Autoload.php lalu tambahkan baris sbb :
public $psr4 = [
APP_NAMESPACE => APPPATH, // For custom app namespace
'Config' => APPPATH . 'Config',
'Modules\User' => ROOTPATH. 'Modules/User',
];
Membuat Controller
php spark make:controller User --suffix --namespace "Modules\User"
Siapkan View
Buat folder dan tambahkan file Modules/User/Views/view_main.php
<h4>This is User Module</h4>
Edit Controller
Buka file Modules/User/Controllers/UserController.php
<?php
namespace Modules\User\Controllers;
use App\Controllers\BaseController;
class UserController extends BaseController
{
public function index()
{
return view("\Modules\User\Views\sample_view");
}
}
Pengaturan Routes
Untuk mendaftarkan Route Module secara otomatis kita harus menambahkan perintah berikut pada file Route Utama.
Tambahkan baris berikut pada file app/Config/Routes.php letakan di baris terakhir :
$modules_path = ROOTPATH . 'Modules/';
$modules = scandir($modules_path);
foreach ($modules as $module) {
if ($module === '.' || $module === '..') {
continue;
}
if (is_dir($modules_path) . '/' . $module) {
$routes_path = $modules_path . $module . '/Routes.php';
if (file_exists($routes_path)) {
require $routes_path;
} else {
continue;
}
}
}
Lalu buat file Modules/Users/Routes.php dengan isi sbb :
<?php
$routes->group("user", ["namespace" => "\Modules\User\Controllers"], function ($routes) {
$routes->get("/", "UserController::index");
$routes->get("get_data", "UserController::get_data");
});
Route get_data nantinya akan digunakan untuk memanggil data dari database
Test Jalankan
Buka web browser http://yourdomain.com/user
Menambahkan Model
Setelah melakukan test percobaan Controller di atas, sekarang kita akan membuat Model, Buat folder dan tambahkan file Modules/User/Model/UserModel.php
<?php
namespace Modules\User\Models;
use CodeIgniter\Model;
class UserModel extends Model
{
protected $DBGroup = 'default';
protected $table = 'users';
protected $primaryKey = 'id';
protected $useAutoIncrement = true;
protected $insertID = 0;
protected $returnType = 'array';
protected $useSoftDeletes = false;
protected $protectFields = true;
protected $allowedFields = ['username','status','status_message','active'];
// Dates
protected $useTimestamps = false;
protected $dateFormat = 'datetime';
protected $createdField = 'created_at';
protected $updatedField = 'updated_at';
protected $deletedField = 'deleted_at';
// Validation
protected $validationRules = [];
protected $validationMessages = [];
protected $skipValidation = false;
protected $cleanValidationRules = true;
// Callbacks
protected $allowCallbacks = true;
protected $beforeInsert = [];
protected $afterInsert = [];
protected $beforeUpdate = [];
protected $afterUpdate = [];
protected $beforeFind = [];
protected $afterFind = [];
protected $beforeDelete = [];
protected $afterDelete = [];
}
Edit File Controller
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<?php
namespace Modules\User\Controllers;
use App\Controllers\BaseController;
class UserController extends BaseController
{
public function index()
{
return view("\Modules\User\Views\sample_view");
}
public function get_data()
{
$dataModel = new \Modules\User\Models\UserModel();
$data = $dataModel->findAll();
$num_rows = count($data);
return $this->response->setJSON(array('total'=>$num_rows,'rows'=>$data));
}
}
Test Model
Buka web browser http://yourdomain.com/user/get_data
Catatan : Sebelumnya route sudah didefiniskan di file Modules/User/Routes.php
