StatisticsLastCommentName.php in Drupal 8

Namespace

Drupal\comment\Plugin\views\field

File

core/modules/comment/src/Plugin/views/field/StatisticsLastCommentName.php

<?php

namespace Drupal\comment\Plugin\views\field;

use Drupal\user\Entity\User;
use Drupal\views\Plugin\views\field\FieldPluginBase;
use Drupal\views\ResultRow;

/**
 * Field handler to present the name of the last comment poster.
 *
 * @ingroup views_field_handlers
 *
 * @ViewsField("comment_ces_last_comment_name")
 */
class StatisticsLastCommentName extends FieldPluginBase {

  /**
   * {@inheritdoc}
   */
  public function query() {

    // last_comment_name only contains data if the user is anonymous. So we
    // have to join in a specially related user table.
    $this
      ->ensureMyTable();

    // join 'users' to this table via vid
    $definition = [
      'table' => 'users_field_data',
      'field' => 'uid',
      'left_table' => 'comment_entity_statistics',
      'left_field' => 'last_comment_uid',
      'extra' => [
        [
          'field' => 'uid',
          'operator' => '!=',
          'value' => '0',
        ],
      ],
    ];
    $join = \Drupal::service('plugin.manager.views.join')
      ->createInstance('standard', $definition);

    // nes_user alias so this can work with the sort handler, below.
    $this->user_table = $this->query
      ->ensureTable('ces_users', $this->relationship, $join);
    $this->field_alias = $this->query
      ->addField(NULL, "COALESCE({$this->user_table}.name, {$this->tableAlias}.{$this->field})", $this->tableAlias . '_' . $this->field);
    $this->user_field = $this->query
      ->addField($this->user_table, 'name');
    $this->uid = $this->query
      ->addField($this->tableAlias, 'last_comment_uid');
  }

  /**
   * {@inheritdoc}
   */
  protected function defineOptions() {
    $options = parent::defineOptions();
    $options['link_to_user'] = [
      'default' => TRUE,
    ];
    return $options;
  }

  /**
   * {@inheritdoc}
   */
  public function render(ResultRow $values) {
    if (!empty($this->options['link_to_user'])) {
      $account = User::create();
      $account->name = $this
        ->getValue($values);
      $account->uid = $values->{$this->uid};
      $username = [
        '#theme' => 'username',
        '#account' => $account,
      ];
      return \Drupal::service('renderer')
        ->render($username);
    }
    else {
      return $this
        ->sanitizeValue($this
        ->getValue($values));
    }
  }

}

Classes

Name	Description
StatisticsLastCommentName	Field handler to present the name of the last comment poster.