UserUid.php

1. 8.x drupal/core/modules/tracker/lib/Drupal/tracker/Plugin/views/argument/UserUid.php
2. 8.x drupal/core/modules/tracker/lib/Drupal/tracker/Plugin/views/filter/UserUid.php
3. 8.x drupal/core/modules/comment/lib/Drupal/comment/Plugin/views/argument/UserUid.php
4. 8.x drupal/core/modules/comment/lib/Drupal/comment/Plugin/views/filter/UserUid.php

<?php

/**
 * @file
 * Definition of Drupal\comment\Plugin\views\argument\UserUid.
 */
namespace Drupal\comment\Plugin\views\argument;

use Drupal\views\Plugin\views\argument\ArgumentPluginBase;
use Drupal\Component\Annotation\PluginID;

/**
 * Argument handler to accept a user id to check for nodes that
 * user posted or commented on.
 *
 * @ingroup views_argument_handlers
 *
 * @PluginID("argument_comment_user_uid")
 */
class UserUid extends ArgumentPluginBase {
  function title() {
    if (!$this->argument) {
      $title = config('user.settings')
        ->get('anonymous');
    }
    else {
      $query = db_select('users', 'u');
      $query
        ->addField('u', 'name');
      $query
        ->condition('u.uid', $this->argument);
      $title = $query
        ->execute()
        ->fetchField();
    }
    if (empty($title)) {
      return t('No user');
    }
    return check_plain($title);
  }
  protected function defaultActions($which = NULL) {

    // Disallow summary views on this argument.
    if (!$which) {
      $actions = parent::defaultActions();
      unset($actions['summary asc']);
      unset($actions['summary desc']);
      return $actions;
    }
    if ($which != 'summary asc' && $which != 'summary desc') {
      return parent::defaultActions($which);
    }
  }
  public function query($group_by = FALSE) {
    $this
      ->ensureMyTable();
    $subselect = db_select('comment', 'c');
    $subselect
      ->addField('c', 'cid');
    $subselect
      ->condition('c.uid', $this->argument);
    $subselect
      ->where("c.nid = {$this->tableAlias}.nid");
    $condition = db_or()
      ->condition("{$this->tableAlias}.uid", $this->argument, '=')
      ->exists($subselect);
    $this->query
      ->addWhere(0, $condition);
  }

  /**
   * {@inheritdoc}
   */
  public function getSortName() {
    return t('Numerical', array(), array(
      'context' => 'Sort order',
    ));
  }

}