abstract class ConfigFormBase

AccountSettingsForm.php in core/modules/user/src/AccountSettingsForm.php

Contains \Drupal\user\AccountSettingsForm.

AdvancedSettingsForm.php in core/modules/views_ui/src/Form/AdvancedSettingsForm.php

Contains \Drupal\views_ui\Form\AdvancedSettingsForm.

BasicSettingsForm.php in core/modules/views_ui/src/Form/BasicSettingsForm.php

Contains \Drupal\views_ui\Form\BasicSettingsForm.

BookSettingsForm.php in core/modules/book/src/Form/BookSettingsForm.php

Contains \Drupal\book\Form\BookSettingsForm.

CronForm.php in core/modules/system/src/Form/CronForm.php

Contains \Drupal\system\Form\CronForm.

... See full list

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'] = array(
      '#type' => 'submit',
      '#value' => $this->t('Save configuration'),
      '#button_type' => 'primary',
    );

    // By default, render the form using theme_system_config_form().
    $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.'));
  }

}