entity_change_notifier-8.x-1.0/src/PublisherListBuilder.php

<?php

namespace Drupal\entity_change_notifier;

use Drupal\Core\Config\Entity\ConfigEntityListBuilder;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Url;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Provides a listing of Publisher entities.
 */
class PublisherListBuilder extends ConfigEntityListBuilder {

  /**
   * {@inheritdoc}
   */
  public function buildHeader() {
    $header['label'] = $this->t('Publisher');
    $header['id'] = $this->t('Machine name');
    return $header + parent::buildHeader();
  }

  /**
   * {@inheritdoc}
   */
  public function buildRow(EntityInterface $entity) {
    /** @var \Drupal\entity_change_notifier\Entity\PublisherInterfaceInterface $entity */
    $row['label'] = $entity->label();
    $row['id'] = $entity->id();
    return $row + parent::buildRow($entity);

  }

  /**
   * {@inheritdoc}
   */
  public function render() {
    $build = parent::render();
    $build['table']['#empty'] = $this->t('No publishers available. <a href=":link">Add publisher</a>.', [
      ':link' => Url::fromRoute('entity.ecn_publisher.add_form')->toString(),
    ]);
    return $build;
  }

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

}