ConfigDeleteForm.php in Devel 4.x

Namespace

Drupal\devel\Form

File

src/Form/ConfigDeleteForm.php

<?php

namespace Drupal\devel\Form;

use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Form\ConfirmFormInterface;
use Drupal\Core\Form\ConfirmFormHelper;
use Drupal\Core\Url;

/**
 * Edit config variable form.
 */
class ConfigDeleteForm extends FormBase implements ConfirmFormInterface {

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'devel_config_system_delete_form';
  }

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state, $config_name = '') {
    $config = $this
      ->config($config_name);
    if ($config === FALSE || $config
      ->isNew()) {
      $this
        ->messenger()
        ->addError(t('Config @name does not exist in the system.', array(
        '@name' => $config_name,
      )));
      return;
    }
    $form['#title'] = $this
      ->getQuestion();
    $form['#attributes']['class'][] = 'confirmation';
    $form['description'] = array(
      '#markup' => $this
        ->getDescription(),
    );
    $form[$this
      ->getFormName()] = array(
      '#type' => 'hidden',
      '#value' => 1,
    );

    // By default, render the form using theme_confirm_form().
    if (!isset($form['#theme'])) {
      $form['#theme'] = 'confirm_form';
    }
    $form['name'] = array(
      '#type' => 'value',
      '#value' => $config_name,
    );
    $form['actions'] = array(
      '#type' => 'actions',
    );
    $form['actions']['submit'] = array(
      '#type' => 'submit',
      '#value' => $this
        ->getConfirmText(),
      '#submit' => array(
        array(
          $this,
          'submitForm',
        ),
      ),
    );
    $form['actions']['cancel'] = ConfirmFormHelper::buildCancelLink($this, $this
      ->getRequest());
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $config_name = $form_state
      ->getValue('name');
    try {
      $this
        ->configFactory()
        ->getEditable($config_name)
        ->delete();
      $this
        ->messenger()
        ->addStatus($this
        ->t('Configuration variable %variable was successfully deleted.', array(
        '%variable' => $config_name,
      )));
      $this
        ->logger('devel')
        ->info('Configuration variable %variable was successfully deleted.', array(
        '%variable' => $config_name,
      ));
      $form_state
        ->setRedirectUrl($this
        ->getCancelUrl());
    } catch (\Exception $e) {
      $this
        ->messenger()
        ->addError($e
        ->getMessage());
      $this
        ->logger('devel')
        ->error('Error deleting configuration variable %variable : %error.', array(
        '%variable' => $config_name,
        '%error' => $e
          ->getMessage(),
      ));
    }
  }

  /**
   * {@inheritdoc}
   */
  public function getCancelUrl() {
    return Url::fromRoute('devel.configs_list');
  }

  /**
   * {@inheritdoc}
   */
  public function getQuestion() {
    return $this
      ->t('Are you sure you want to delete this configuration?');
  }

  /**
   * {@inheritdoc}
   */
  public function getDescription() {
    return $this
      ->t('This action cannot be undone.');
  }

  /**
   * {@inheritdoc}
   */
  public function getConfirmText() {
    return $this
      ->t('Confirm');
  }

  /**
   * {@inheritdoc}
   */
  public function getCancelText() {
    return $this
      ->t('Cancel');
  }

  /**
   * {@inheritdoc}
   */
  public function getFormName() {
    return 'confirm';
  }

}

Classes

Name	Description
ConfigDeleteForm	Edit config variable form.