Broken.php

1. 9.x drupal/core/modules/views/lib/Drupal/views/Plugin/views/relationship/Broken.php
2. 9.x drupal/core/modules/views/lib/Drupal/views/Plugin/views/field/Broken.php
3. 9.x drupal/core/modules/views/lib/Drupal/views/Plugin/views/area/Broken.php
4. 9.x drupal/core/modules/views/lib/Drupal/views/Plugin/views/argument/Broken.php
5. 9.x drupal/core/modules/views/lib/Drupal/views/Plugin/views/sort/Broken.php
6. 9.x drupal/core/modules/views/lib/Drupal/views/Plugin/views/filter/Broken.php

<?php

/**
 * @file
 * Definition of Drupal\views\Plugin\views\filter\Broken.
 */
namespace Drupal\views\Plugin\views\filter;

use Drupal\Core\Annotation\Plugin;
use Drupal\views\ViewExecutable;

/**
 * A special handler to take the place of missing or broken handlers.
 *
 * @ingroup views_filter_handlers
 *
 * @Plugin(
 *   id = "broken"
 * )
 */
class Broken extends FilterPluginBase {
  public function adminLabel($short = FALSE) {
    return t('Broken/missing handler');
  }
  public function init(ViewExecutable $view, &$options) {
  }
  public function defineOptions() {
    return array();
  }
  public function ensureMyTable() {

    /* No table to ensure! */
  }
  public function query($group_by = FALSE) {

    /* No query to run */
  }
  public function buildOptionsForm(&$form, &$form_state) {
    $form['markup'] = array(
      '#markup' => '<div class="form-item description">' . t('The handler for this item is broken or missing and cannot be used. If a module provided the handler and was disabled, re-enabling the module may restore it. Otherwise, you should probably delete this item.') . '</div>',
    );
  }

  /**
   * Determine if the handler is considered 'broken'
   */
  public function broken() {
    return TRUE;
  }

}