DeleteForm.php

1. 8.x drupal/core/modules/forum/lib/Drupal/forum/Form/DeleteForm.php
2. 8.x drupal/core/modules/contact/lib/Drupal/contact/Form/DeleteForm.php
3. 8.x drupal/core/modules/views_ui/lib/Drupal/views_ui/Form/DeleteForm.php
4. 8.x drupal/core/modules/path/lib/Drupal/path/Form/DeleteForm.php
5. 8.x drupal/core/modules/action/lib/Drupal/action/Form/DeleteForm.php

<?php

/**
 * @file
 * Contains \Drupal\action\Form\DeleteForm.
 */
namespace Drupal\action\Form;

use Drupal\Core\Form\ConfirmFormBase;
use Drupal\system\ActionConfigEntityInterface;

/**
 * Builds a form to delete an action.
 */
class DeleteForm extends ConfirmFormBase {

  /**
   * The action to be deleted.
   *
   * @var \Drupal\system\ActionConfigEntityInterface
   */
  protected $action;

  /**
   * {@inheritdoc}
   */
  protected function getQuestion() {
    return t('Are you sure you want to delete the action %action?', array(
      '%action' => $this->action
        ->label(),
    ));
  }

  /**
   * {@inheritdoc}
   */
  protected function getConfirmText() {
    return t('Delete');
  }

  /**
   * {@inheritdoc}
   */
  protected function getCancelPath() {
    return 'admin/config/system/actions';
  }

  /**
   * {@inheritdoc}
   */
  public function getFormID() {
    return 'action_admin_delete_form';
  }

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, array &$form_state, ActionConfigEntityInterface $action = NULL) {
    $this->action = $action;
    return parent::buildForm($form, $form_state);
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, array &$form_state) {
    $this->action
      ->delete();
    watchdog('user', 'Deleted action %aid (%action)', array(
      '%aid' => $this->action
        ->id(),
      '%action' => $this->action
        ->label(),
    ));
    drupal_set_message(t('Action %action was deleted', array(
      '%action' => $this->action
        ->label(),
    )));
    $form_state['redirect'] = 'admin/config/system/actions';
  }

}