SupportTicketRevisionRevertForm.php in Support Ticketing System 8

Contains \Drupal\support_ticket\Form\SupportTicketRevisionRevertForm.

Namespace

Drupal\support_ticket\Form

File

modules/support_ticket/src/Form/SupportTicketRevisionRevertForm.php

<?php

/**
 * @file
 * Contains \Drupal\support_ticket\Form\SupportTicketRevisionRevertForm.
 */
namespace Drupal\support_ticket\Form;

use Drupal\Core\Entity\EntityStorageInterface;
use Drupal\Core\Form\ConfirmFormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url;
use Drupal\support_ticket\SupportTicketInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Provides a form for reverting a support ticket revision.
 */
class SupportTicketRevisionRevertForm extends ConfirmFormBase {

  /**
   * The support ticket revision.
   *
   * @var \Drupal\support_ticket\SupportTicketInterface
   */
  protected $revision;

  /**
   * The support ticket storage.
   *
   * @var \Drupal\Core\Entity\EntityStorageInterface
   */
  protected $supportTicketStorage;

  /**
   * Constructs a new SupportTicketRevisionRevertForm.
   *
   * @param \Drupal\Core\Entity\EntityStorageInterface $support_ticket_storage
   *   The support_ticket storage.
   */
  public function __construct(EntityStorageInterface $support_ticket_storage) {
    $this->supportTicketStorage = $support_ticket_storage;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('entity.manager')
      ->getStorage('support_ticket'));
  }

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

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

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

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

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

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

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $revision = $this
      ->prepareRevertedRevision($this->revision);

    // The revision timestamp will be updated when the revision is saved. Keep the
    // original one for the confirmation message.
    $original_revision_timestamp = $revision
      ->getRevisionCreationTime();
    $revision->revision_log = t('Copy of the revision from %date.', array(
      '%date' => format_date($original_revision_timestamp),
    ));
    $revision
      ->save();
    $this
      ->logger('content')
      ->notice('@type: reverted %title revision %revision.', array(
      '@type' => $this->revision
        ->bundle(),
      '%title' => $this->revision
        ->label(),
      '%revision' => $this->revision
        ->getRevisionId(),
    ));
    drupal_set_message(t('@type %title has been reverted to the revision from %revision-date.', array(
      '@type' => support_ticket_get_type_label($this->revision),
      '%title' => $this->revision
        ->label(),
      '%revision-date' => format_date($original_revision_timestamp),
    )));
    $form_state
      ->setRedirect('entity.support_ticket.version_history', array(
      'support_ticket' => $this->revision
        ->id(),
    ));
  }

  /**
   * Prepares a revision to be reverted.
   *
   * @param \Drupal\support_ticket\SupportTicketInterface $revision
   *   The revision to be reverted.
   *
   * @return \Drupal\support_ticket\SupportTicketInterface
   *   The prepared revision ready to be stored.
   */
  protected function prepareRevertedRevision(SupportTicketInterface $revision) {

    /** @var \Drupal\support_ticket\SupportTicketInterface $default_revision */
    $default_revision = $this->supportTicketStorage
      ->load($revision
      ->id());

    // If the entity is translated, make sure only translations affected by the
    // specified revision are reverted.
    $languages = $default_revision
      ->getTranslationLanguages();
    if (count($languages) > 1) {
      foreach ($languages as $langcode => $language) {
        if ($revision
          ->hasTranslation($langcode) && !$revision
          ->getTranslation($langcode)
          ->isRevisionTranslationAffected()) {
          $revision_translation = $revision
            ->getTranslation($langcode);
          $default_translation = $default_revision
            ->getTranslation($langcode);
          foreach ($default_revision
            ->getFieldDefinitions() as $field_name => $definition) {
            if ($definition
              ->isTranslatable()) {
              $revision_translation
                ->set($field_name, $default_translation
                ->get($field_name)
                ->getValue());
            }
          }
        }
      }
    }
    $revision
      ->setNewRevision();
    $revision
      ->isDefaultRevision(TRUE);
    return $revision;
  }

}

Classes

Name	Description
SupportTicketRevisionRevertForm	Provides a form for reverting a support ticket revision.