eck-8.x-1.x-dev/src/Form/EntityBundle/EckEntityBundleDeleteConfirm.php

<?php

namespace Drupal\eck\Form\EntityBundle;

use Drupal\Core\Entity\EntityDeleteForm;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Messenger\MessengerInterface;
use Drupal\Core\Url;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Provides a form for ECK entity bundle deletion.
 *
 * @ingroup eck
 */
class EckEntityBundleDeleteConfirm extends EntityDeleteForm {

  /**
   * The entity type manager.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

  /**
   * The messenger service.
   *
   * @var \Drupal\Core\Messenger\MessengerInterface
   */
  protected $messenger;

  /**
   * Constructs a new EckEntityBundleDeleteConfirm object.
   *
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager.
   * @param \Drupal\Core\Messenger\MessengerInterface $messenger
   *   The messenger service.
   */
  public function __construct(EntityTypeManagerInterface $entity_type_manager, MessengerInterface $messenger) {
    $this->entityTypeManager = $entity_type_manager;
    $this->messenger = $messenger;
  }

  /**
   * {@inheritdoc}
   */
  final public static function create(ContainerInterface $container) {
    return new static(
      $container->get('entity_type.manager'),
      $container->get('messenger')
    );
  }

  /**
   * {@inheritdoc}
   */
  public function getQuestion() {
    return $this->t('Are you sure you want to delete the entity bundle %type?', ['%type' => $this->entity->label()]);
  }

  /**
   * {@inheritdoc}
   */
  public function getCancelUrl() {
    return new Url('eck.entity.' . $this->entity->getEntityTypeId() . '.list');
  }

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

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state) {
    // Check if any entity of this type already exists.
    $content_number = $this->entityTypeManager->getStorage($this->entity->getEntityType()
      ->getBundleOf())->getQuery()
      ->accessCheck(FALSE)
      ->condition('type', $this->entity->id())
      ->count()
      ->execute();
    if (!empty($content_number)) {
      $warning_message = '<p>' . $this->formatPlural($content_number, '%type is used by 1 entity on your site. You can not remove this entity type until you have removed all of the %type entities.', '%type is used by @count entities on your site. You may not remove %type until you have removed all of the %type entities.', ['%type' => $this->entity->label()]) . '</p>';
      $form['#title'] = $this->getQuestion();
      $form['description'] = ['#markup' => $warning_message];
      return $form;
    }
    return parent::buildForm($form, $form_state);
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $this->entity->delete();
    $t_args = ['%name' => $this->entity->label()];
    $this->messenger->addMessage($this->t('The entity bundle %name has been deleted', $t_args));
    $this->logger($this->entity->getEntityType()->getBundleOf())
      ->notice('Delete entity type %name', $t_args);

    $form_state->setRedirectUrl($this->getCancelUrl());
  }

}