SiteMaintenanceModeForm.php in Drupal 9
File
core/modules/system/src/Form/SiteMaintenanceModeForm.php
View source
<?php
namespace Drupal\system\Form;
use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\State\StateInterface;
use Drupal\Core\Form\ConfigFormBase;
use Drupal\Core\Url;
use Drupal\user\PermissionHandlerInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
class SiteMaintenanceModeForm extends ConfigFormBase {
protected $state;
protected $permissionHandler;
public function __construct(ConfigFactoryInterface $config_factory, StateInterface $state, PermissionHandlerInterface $permission_handler) {
parent::__construct($config_factory);
$this->state = $state;
$this->permissionHandler = $permission_handler;
}
public static function create(ContainerInterface $container) {
return new static($container
->get('config.factory'), $container
->get('state'), $container
->get('user.permissions'));
}
public function getFormId() {
return 'system_site_maintenance_mode';
}
protected function getEditableConfigNames() {
return [
'system.maintenance',
];
}
public function buildForm(array $form, FormStateInterface $form_state) {
$config = $this
->config('system.maintenance');
$permissions = $this->permissionHandler
->getPermissions();
$permission_label = $permissions['access site in maintenance mode']['title'];
$form['maintenance_mode'] = [
'#type' => 'checkbox',
'#title' => $this
->t('Put site into maintenance mode'),
'#default_value' => $this->state
->get('system.maintenance_mode'),
'#description' => $this
->t('Visitors will only see the maintenance mode message. Only users with the "@permission-label" <a href=":permissions-url">permission</a> will be able to access the site. Authorized users can log in directly via the <a href=":user-login">user login</a> page.', [
'@permission-label' => $permission_label,
':permissions-url' => Url::fromRoute('user.admin_permissions')
->toString(),
':user-login' => Url::fromRoute('user.login')
->toString(),
]),
];
$form['maintenance_mode_message'] = [
'#type' => 'textarea',
'#title' => $this
->t('Message to display when in maintenance mode'),
'#default_value' => $config
->get('message'),
];
return parent::buildForm($form, $form_state);
}
public function submitForm(array &$form, FormStateInterface $form_state) {
$this
->config('system.maintenance')
->set('message', $form_state
->getValue('maintenance_mode_message'))
->save();
$this->state
->set('system.maintenance_mode', $form_state
->getValue('maintenance_mode'));
parent::submitForm($form, $form_state);
}
}