public function LogController::revisionOverview in Log entity 8

Generates an overview table of older revisions of a log.

Parameters

\Drupal\log\LogInterface $log: A log object.

Return value

array An array as expected by drupal_render().

File

src/Controller/LogController.php, line 163

Contains \Drupal\log\Controller\LogController.

Class

LogController

Returns responses for Log routes.

Namespace

Drupal\log\Controller

Code

public function revisionOverview(LogInterface $log) {
  $account = $this
    ->currentUser();
  $langcode = $this
    ->languageManager()
    ->getCurrentLanguage(LanguageInterface::TYPE_CONTENT)
    ->getId();
  $langname = $this
    ->languageManager()
    ->getLanguageName($langcode);
  $languages = $log
    ->getTranslationLanguages();
  $has_translations = count($languages) > 1;
  $log_storage = $this
    ->entityManager()
    ->getStorage('log');
  $type = $log
    ->getType();
  $build['#title'] = $has_translations ? $this
    ->t('@langname revisions for %title', [
    '@langname' => $langname,
    '%title' => $log
      ->label(),
  ]) : $this
    ->t('Revisions for %title', [
    '%title' => $log
      ->label(),
  ]);
  $header = array(
    $this
      ->t('Revision'),
    $this
      ->t('Operations'),
  );
  $revert_permission = ($account
    ->hasPermission("revert {$type} revisions") || $account
    ->hasPermission('revert all revisions') || $account
    ->hasPermission('administer logs')) && $log
    ->access('update');
  $delete_permission = ($account
    ->hasPermission("delete {$type} revisions") || $account
    ->hasPermission('delete all revisions') || $account
    ->hasPermission('administer logs')) && $log
    ->access('delete');
  $rows = array();
  $vids = $log_storage
    ->revisionIds($log);
  $latest_revision = TRUE;
  foreach (array_reverse($vids) as $vid) {

    /** @var \Drupal\log\LogInterface $revision */
    $revision = $log_storage
      ->loadRevision($vid);
    if ($revision
      ->hasTranslation($langcode) && $revision
      ->getTranslation($langcode)
      ->isRevisionTranslationAffected()) {
      $username = [
        '#theme' => 'username',
        '#account' => $revision
          ->getRevisionAuthor(),
      ];

      // Use revision link to link to revisions that are not active.
      $date = $this->dateFormatter
        ->format($revision->revision_timestamp->value, 'short');
      if ($vid != $log
        ->getRevisionId()) {
        $link = $this
          ->l($date, new Url('entity.log.revision', [
          'log' => $log
            ->id(),
          'log_revision' => $vid,
        ]));
      }
      else {
        $link = $log
          ->link($date);
      }
      $row = [];
      $column = [
        'data' => [
          '#type' => 'inline_template',
          '#template' => '{% trans %}{{ date }} by {{ username }}{% endtrans %}{% if message %}<p class="revision-log">{{ message }}</p>{% endif %}',
          '#context' => [
            'date' => $link,
            'username' => $this->renderer
              ->renderPlain($username),
            'message' => [
              '#markup' => $revision->revision_log->value,
              '#allowed_tags' => Xss::getHtmlTagList(),
            ],
          ],
        ],
      ];

      // @todo Simplify once https://www.drupal.org/log/2334319 lands.
      $this->renderer
        ->addCacheableDependency($column['data'], $username);
      $row[] = $column;
      if ($latest_revision) {
        $row[] = [
          'data' => [
            '#prefix' => '<em>',
            '#markup' => $this
              ->t('Current revision'),
            '#suffix' => '</em>',
          ],
        ];
        foreach ($row as &$current) {
          $current['class'] = [
            'revision-current',
          ];
        }
        $latest_revision = FALSE;
      }
      else {
        $links = [];
        if ($revert_permission) {
          $links['revert'] = [
            'title' => $this
              ->t('Revert'),
            'url' => $has_translations ? Url::fromRoute('log.revision_revert_translation_confirm', [
              'log' => $log
                ->id(),
              'log_revision' => $vid,
              'langcode' => $langcode,
            ]) : Url::fromRoute('log.revision_revert_confirm', [
              'log' => $log
                ->id(),
              'log_revision' => $vid,
            ]),
          ];
        }
        if ($delete_permission) {
          $links['delete'] = [
            'title' => $this
              ->t('Delete'),
            'url' => Url::fromRoute('log.revision_delete_confirm', [
              'log' => $log
                ->id(),
              'log_revision' => $vid,
            ]),
          ];
        }
        $row[] = [
          'data' => [
            '#type' => 'operations',
            '#links' => $links,
          ],
        ];
      }
      $rows[] = $row;
    }
  }
  $build['log_revisions_table'] = array(
    '#theme' => 'table',
    '#rows' => $rows,
    '#header' => $header,
    '#attached' => array(
      'library' => array(
        'log/drupal.log.admin',
      ),
    ),
  );
  return $build;
}