public function ViewRevisionsPreviewForm::form in Config Entity Revisions 8.2

Gets the actual form array to be built.

Overrides ViewPreviewForm::form

See also

\Drupal\Core\Entity\EntityForm::processForm()

\Drupal\Core\Entity\EntityForm::afterBuild()

File

modules/view_revisions/src/ViewRevisionsPreviewForm.php, line 55

Class

ViewRevisionsPreviewForm

Class ViewRevisionsPreviewForm.

Namespace

Drupal\view_revisions

Code

public function form(array $form, FormStateInterface $form_state) {
  $form = parent::form($form, $form_state);

  // Modify the preview URL to the version with a revision ID.
  $view = $this->entity;
  $linkTemplates = $view
    ->get('storage')
    ->getEntityType()
    ->getLinkTemplates();

  //    foreach($linkTemplates as $name => $template) {
  $old_uri = $view
    ->urlInfo('preview-form');
  $route_parameters = $old_uri
    ->getRouteParameters();
  $route_options = $old_uri
    ->getOptions();

  // We can't replace the route name, so we need to replace the whole object.
  $uri = Url::fromRoute('entity.view.preview_revision_form', $route_parameters, $route_options);
  $uri
    ->setRouteParameter('revision_id', $this
    ->getRevisionId($view
    ->get('storage')));
  $form['#action'] = $uri
    ->toString();
  return $form;
}