api-8.x-1.x-dev/src/ListBuilder/ExternalDocumentationListBuilder.php

<?php

namespace Drupal\api\ListBuilder;

use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Entity\EntityListBuilder;
use Drupal\Core\Entity\EntityStorageInterface;
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Routing\RedirectDestinationInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Provides a list controller for the external documentation entity type.
 */
class ExternalDocumentationListBuilder extends EntityListBuilder {

  /**
   * The redirect destination service.
   *
   * @var \Drupal\Core\Routing\RedirectDestinationInterface
   */
  protected $redirectDestination;

  /**
   * Constructs a new ExternalDocumentationListBuilder object.
   *
   * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
   *   The entity type definition.
   * @param \Drupal\Core\Entity\EntityStorageInterface $storage
   *   The entity storage class.
   * @param \Drupal\Core\Routing\RedirectDestinationInterface $redirect_destination
   *   The redirect destination service.
   */
  public function __construct(EntityTypeInterface $entity_type, EntityStorageInterface $storage, RedirectDestinationInterface $redirect_destination) {
    parent::__construct($entity_type, $storage);
    $this->redirectDestination = $redirect_destination;
  }

  /**
   * {@inheritdoc}
   */
  public static function createInstance(ContainerInterface $container, EntityTypeInterface $entity_type) {
    return new static(
      $entity_type,
      $container->get('entity_type.manager')->getStorage($entity_type->id()),
      $container->get('redirect.destination')
    );
  }

  /**
   * {@inheritdoc}
   */
  public function render() {
    $build['table'] = parent::render();

    $total = $this->getStorage()
      ->getQuery()
      ->accessCheck(TRUE)
      ->count()
      ->execute();

    $build['summary']['#markup'] = $this->t('Total external documentation entries: @total', ['@total' => $total]);
    return $build;
  }

  /**
   * {@inheritdoc}
   */
  public function buildHeader() {
    $header['object_name'] = $this->t('Object name');
    return $header;
  }

  /**
   * {@inheritdoc}
   */
  public function buildRow(EntityInterface $entity) {
    /** @var \Drupal\api\Interfaces\ExternalDocumentationInterface $entity */
    $row['object_name'] = $entity->getExternalLink();
    return $row;
  }

}