dr8_zth/src/BlogListBuilder.php

<?php

namespace Drupal\dr8_zth;

use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Entity\EntityListBuilder;
use Drupal\dr8_zth\Entity\Blog;
use Drupal\dr8_zth\Entity\BlogType;

/**
 * Class BlogListBuilder is the list builder for Blog entities.
 */
class BlogListBuilder extends EntityListBuilder {

  /**
   * {@inheritdoc}
   */
  public function buildHeader() {
    $parentHeader = parent::buildHeader();
    $header = [
      $this->t('ID'),
      $this->t('Title'),
      $this->t('Type'),
      $this->t('Author'),
    ];
    $ret = array_merge($header, $parentHeader);
    return $ret;
  }

  /**
   * {@inheritdoc}
   */
  public function buildRow(EntityInterface $entity) {
    assert($entity instanceof Blog);
    $author = $entity->getAuthor()->toLink();
    $bundle = $entity->bundle();
    $blogType = BlogType::load($bundle);
    $blogTypeEditLink = $blogType->toLink($bundle, 'edit-form');
    $row = [
      $entity->id(),
      $entity->label(),
      $blogTypeEditLink,
      $author,
    ];
    $ret = array_merge($row, parent::buildRow($entity));
    return $ret;
  }

}