dr8_zth/src/BlogViewsData.php

<?php

namespace Drupal\dr8_zth;

use Drupal\views\EntityViewsData;

/**
 * Provides the views data for the blog entity type.
 */
class BlogViewsData extends EntityViewsData {

  /**
   * {@inheritdoc}
   */
  public function getViewsData() {
    $data = parent::getViewsData();

    $data['blog_field_data']['table']['base']['help'] = $this->t('Blog items.');
    $data['blog_field_data']['table']['base']['access query tag'] = 'blog_access';

    $data['blog_field_data']['uid']['argument']['id'] = 'user_uid';
    $data['blog_field_data']['uid']['argument'] += [
      'name table' => 'blog_field_data',
      'name field' => 'name',
      'empty field name' => \Drupal::config('user.settings')->get('anonymous'),
    ];
    $data['blog_field_data']['uid']['filter']['id'] = 'user_name';
    $data['blog_field_data']['uid']['filter']['title'] = $this->t('Author name (autocomplete)');
    $data['blog_field_data']['uid']['filter']['help'] = $this->t('The name of the blog author name. Uses an autocomplete widget to find a user name, the actual filter uses the resulting user ID.');

    $data['blog_field_data']['blog_id_raw'] = array(
      'help' => $this->t('The raw numeric blog ID.'),
      'real field' => 'blog_id',
      'filter' => array(
        'title' => $this->t('The blog ID'),
        'id' => 'numeric',
      ),
    );

    $data['users']['uid_current'] = array(
      'real field' => 'uid',
      'title' => $this->t('Current'),
      'help' => $this->t('Filter the view to the currently logged in user.'),
      'filter' => array(
        'id' => 'user_current',
        'type' => 'yes-no',
      ),
    );

    $data['blog_field_data']['langcode']['help'] = $this->t('Original language of the blog entity');
    $data['blog_field_data']['langcode']['help'] = $this->t('Language of the translation of the blog entity');

    return $data;
  }

}