SitewideAlertRevisionDeleteForm.php in Sitewide Alert 8

Namespace

Drupal\sitewide_alert\Form

File

src/Form/SitewideAlertRevisionDeleteForm.php

<?php

namespace Drupal\sitewide_alert\Form;

use Drupal\Core\Database\Connection;
use Drupal\Core\Datetime\DateFormatterInterface;
use Drupal\Core\Entity\EntityStorageInterface;
use Drupal\Core\Form\ConfirmFormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Provides a form for deleting a Sitewide Alert revision.
 *
 * @ingroup sitewide_alert
 */
class SitewideAlertRevisionDeleteForm extends ConfirmFormBase {

  /**
   * The Sitewide Alert revision.
   *
   * @var \Drupal\sitewide_alert\Entity\SitewideAlertInterface
   */
  protected $revision;

  /**
   * The Sitewide Alert storage.
   *
   * @var \Drupal\Core\Entity\EntityStorageInterface
   */
  protected $SitewideAlertStorage;

  /**
   * The database connection.
   *
   * @var \Drupal\Core\Database\Connection
   */
  protected $connection;

  /**
   * The date formatter service.
   *
   * @var \Drupal\Core\Datetime\DateFormatterInterface
   */
  protected $dateFormatter;

  /**
   * Constructs a new SitewideAlertRevisionDeleteForm.
   *
   * @param \Drupal\Core\Entity\EntityStorageInterface $entity_storage
   *   The entity storage.
   * @param \Drupal\Core\Database\Connection $connection
   *   The database connection.
   */
  public function __construct(EntityStorageInterface $entity_storage, Connection $connection, DateFormatterInterface $date_formatter) {
    $this->SitewideAlertStorage = $entity_storage;
    $this->connection = $connection;
    $this->dateFormatter = $date_formatter;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    $entity_type_manager = $container
      ->get('entity_type.manager');
    return new static($entity_type_manager
      ->getStorage('sitewide_alert'), $container
      ->get('database'), $container
      ->get('date.formatter'));
  }

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

  /**
   * {@inheritdoc}
   */
  public function getQuestion() {
    return $this
      ->t('Are you sure you want to delete the revision from %revision-date?', [
      '%revision-date' => $this->dateFormatter
        ->format($this->revision
        ->getRevisionCreationTime()),
    ]);
  }

  /**
   * {@inheritdoc}
   */
  public function getCancelUrl() {
    return new Url('entity.sitewide_alert.version_history', [
      'sitewide_alert' => $this->revision
        ->id(),
    ]);
  }

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

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state, $sitewide_alert_revision = NULL) {
    $this->revision = $this->SitewideAlertStorage
      ->loadRevision($sitewide_alert_revision);
    $form = parent::buildForm($form, $form_state);
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $this->SitewideAlertStorage
      ->deleteRevision($this->revision
      ->getRevisionId());
    $this
      ->logger('content')
      ->notice('Sitewide Alert: deleted %title revision %revision.', [
      '%title' => $this->revision
        ->label(),
      '%revision' => $this->revision
        ->getRevisionId(),
    ]);
    $this
      ->messenger()
      ->addMessage(t('Revision from %revision-date of Sitewide Alert %title has been deleted.', [
      '%revision-date' => $this->dateFormatter
        ->format($this->revision
        ->getRevisionCreationTime()),
      '%title' => $this->revision
        ->label(),
    ]));
    $form_state
      ->setRedirect('entity.sitewide_alert.canonical', [
      'sitewide_alert' => $this->revision
        ->id(),
    ]);
    if ($this->connection
      ->query('SELECT COUNT(DISTINCT vid) FROM {sitewide_alert_field_revision} WHERE id = :id', [
      ':id' => $this->revision
        ->id(),
    ])
      ->fetchField() > 1) {
      $form_state
        ->setRedirect('entity.sitewide_alert.version_history', [
        'sitewide_alert' => $this->revision
          ->id(),
      ]);
    }
  }

}

Classes

Name	Description
SitewideAlertRevisionDeleteForm	Provides a form for deleting a Sitewide Alert revision.