ReferenceRevisionDeleteForm.php in Bibliography & Citation 8

Namespace

Drupal\bibcite_entity\Form

File

modules/bibcite_entity/src/Form/ReferenceRevisionDeleteForm.php

<?php

namespace Drupal\bibcite_entity\Form;

use Drupal\bibcite_entity\Entity\ReferenceType;
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 reverting a reference revision.
 *
 * @internal
 */
class ReferenceRevisionDeleteForm extends ConfirmFormBase {

  /**
   * The reference revision.
   *
   * @var \Drupal\bibcite_entity\entity\Reference
   */
  protected $revision;

  /**
   * The reference storage.
   *
   * @var \Drupal\Core\Entity\EntityStorageInterface
   */
  protected $referenceStorage;

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

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

  /**
   * Constructs a new ReferenceRevisionDeleteForm.
   *
   * @param \Drupal\Core\Entity\EntityStorageInterface $referenceStorage
   *   The reference storage.
   * @param \Drupal\Core\Database\Connection $connection
   *   The database connection.
   * @param \Drupal\Core\Datetime\DateFormatterInterface $date_formatter
   *   The date formatter service.
   */
  public function __construct(EntityStorageInterface $referenceStorage, Connection $connection, DateFormatterInterface $date_formatter) {
    $this->referenceStorage = $referenceStorage;
    $this->connection = $connection;
    $this->dateFormatter = $date_formatter;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {

    /** @var DateFormatterInterface $date_formatter */
    $date_formatter = $container
      ->get('date.formatter');

    /** @var \Drupal\Core\Database\Connection $connection */
    $connection = $container
      ->get('database');
    return new static($container
      ->get('entity_type.manager')
      ->getStorage('bibcite_reference'), $connection, $date_formatter);
  }

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

  /**
   * {@inheritdoc}
   */
  public function getQuestion() {
    return 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.bibcite_reference.version_history', [
      'bibcite_reference' => $this->revision
        ->id(),
    ]);
  }

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

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

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $this->referenceStorage
      ->deleteRevision($this->revision
      ->getRevisionId());
    $this
      ->logger('bibcite')
      ->notice('@type: deleted %title revision %revision.', [
      '@type' => $this->revision
        ->bundle(),
      '%title' => $this->revision
        ->label(),
      '%revision' => $this->revision
        ->getRevisionId(),
    ]);
    $type = ReferenceType::load($this->revision
      ->bundle());
    $type_label = $type ? $type
      ->label() : $this->revision
      ->bundle();
    $this
      ->messenger()
      ->addStatus($this
      ->t('Revision from %revision-date of @type %title has been deleted.', [
      '%revision-date' => $this->dateFormatter
        ->format($this->revision
        ->getRevisionCreationTime()),
      '@type' => $type_label,
      '%title' => $this->revision
        ->label(),
    ]));
    $form_state
      ->setRedirect('entity.bibcite_reference.canonical', [
      'bibcite_reference' => $this->revision
        ->id(),
    ]);
    $query = $this->connection
      ->select('bibcite_reference_revision', 'br');
    $query
      ->addExpression('COUNT(DISTINCT(revision_id))');
    $query
      ->condition('id', $this->revision
      ->id());
    $count = $query
      ->execute()
      ->fetchField();
    if ($count > 1) {
      $form_state
        ->setRedirect('entity.bibcite_reference.version_history', [
        'bibcite_reference' => $this->revision
          ->id(),
      ]);
    }
  }

}

Classes

Name	Description
ReferenceRevisionDeleteForm	Provides a form for reverting a reference revision.