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<?php
namespace Drupal\Core\Form;
use Drupal\Core\Config\ConfigFactoryInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Base class for implementing system configuration forms.
*/
abstract class ConfigFormBase extends FormBase {
use ConfigFormBaseTrait;
/**
* Constructs a \Drupal\system\ConfigFormBase object.
*
* @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
* The factory for configuration objects.
*/
public function __construct(ConfigFactoryInterface $config_factory) {
$this->setConfigFactory($config_factory);
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container) {
return new static(
$container->get('config.factory')
);
}
/**
* {@inheritdoc}
*/
public function buildForm(array $form, FormStateInterface $form_state) {
$form['actions']['#type'] = 'actions';
$form['actions']['submit'] = [
'#type' => 'submit',
'#value' => $this->t('Save configuration'),
'#button_type' => 'primary',
];
// By default, render the form using system-config-form.html.twig.
$form['#theme'] = 'system_config_form';
return $form;
}
/**
* {@inheritdoc}
*/
public function submitForm(array &$form, FormStateInterface $form_state) {
drupal_set_message($this->t('The configuration options have been saved.'));
}
}