public function EntityController::addPage in Drupal 8

Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/Entity/Controller/EntityController.php \Drupal\Core\Entity\Controller\EntityController::addPage()
2. 10 core/lib/Drupal/Core/Entity/Controller/EntityController.php \Drupal\Core\Entity\Controller\EntityController::addPage()

Displays add links for the available bundles.

Redirects to the add form if there's only one bundle available.

Parameters

string $entity_type_id: The entity type ID.

Return value

\Symfony\Component\HttpFoundation\RedirectResponse|array If there's only one available bundle, a redirect response. Otherwise, a render array with the add links for each bundle.

File

core/lib/Drupal/Core/Entity/Controller/EntityController.php, line 139

Class

EntityController

Provides the add-page and title callbacks for entities.

Namespace

Drupal\Core\Entity\Controller

Code

public function addPage($entity_type_id) {
  $entity_type = $this->entityTypeManager
    ->getDefinition($entity_type_id);
  $bundles = $this->entityTypeBundleInfo
    ->getBundleInfo($entity_type_id);
  $bundle_key = $entity_type
    ->getKey('bundle');
  $bundle_entity_type_id = $entity_type
    ->getBundleEntityType();
  $build = [
    '#theme' => 'entity_add_list',
    '#bundles' => [],
  ];
  if ($bundle_entity_type_id) {
    $bundle_argument = $bundle_entity_type_id;
    $bundle_entity_type = $this->entityTypeManager
      ->getDefinition($bundle_entity_type_id);
    $bundle_entity_type_label = $bundle_entity_type
      ->getSingularLabel();
    $build['#cache']['tags'] = $bundle_entity_type
      ->getListCacheTags();

    // Build the message shown when there are no bundles.
    $link_text = $this
      ->t('Add a new @entity_type.', [
      '@entity_type' => $bundle_entity_type_label,
    ]);
    $link_route_name = 'entity.' . $bundle_entity_type
      ->id() . '.add_form';
    $build['#add_bundle_message'] = $this
      ->t('There is no @entity_type yet. @add_link', [
      '@entity_type' => $bundle_entity_type_label,
      '@add_link' => Link::createFromRoute($link_text, $link_route_name)
        ->toString(),
    ]);

    // Filter out the bundles the user doesn't have access to.
    $access_control_handler = $this->entityTypeManager
      ->getAccessControlHandler($entity_type_id);
    foreach ($bundles as $bundle_name => $bundle_info) {
      $access = $access_control_handler
        ->createAccess($bundle_name, NULL, [], TRUE);
      if (!$access
        ->isAllowed()) {
        unset($bundles[$bundle_name]);
      }
      $this->renderer
        ->addCacheableDependency($build, $access);
    }

    // Add descriptions from the bundle entities.
    $bundles = $this
      ->loadBundleDescriptions($bundles, $bundle_entity_type);
  }
  else {
    $bundle_argument = $bundle_key;
  }
  $form_route_name = 'entity.' . $entity_type_id . '.add_form';

  // Redirect if there's only one bundle available.
  if (count($bundles) == 1) {
    $bundle_names = array_keys($bundles);
    $bundle_name = reset($bundle_names);
    return $this
      ->redirect($form_route_name, [
      $bundle_argument => $bundle_name,
    ]);
  }

  // Prepare the #bundles array for the template.
  foreach ($bundles as $bundle_name => $bundle_info) {
    $build['#bundles'][$bundle_name] = [
      'label' => $bundle_info['label'],
      'description' => isset($bundle_info['description']) ? $bundle_info['description'] : '',
      'add_link' => Link::createFromRoute($bundle_info['label'], $form_route_name, [
        $bundle_argument => $bundle_name,
      ]),
    ];
  }
  return $build;
}