IndexTidDepth.php

<?php

namespace Drupal\taxonomy\Plugin\views\argument;

use Drupal\Core\Entity\EntityRepositoryInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Drupal\taxonomy\TaxonomyIndexDepthQueryTrait;
use Drupal\views\Attribute\ViewsArgument;
use Drupal\views\Plugin\views\argument\ArgumentPluginBase;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Argument handler for taxonomy terms with depth.
 *
 * This handler is actually part of the node table and has some restrictions,
 * because it uses a subquery to find nodes with.
 *
 * @ingroup views_argument_handlers
 */
class IndexTidDepth extends ArgumentPluginBase implements ContainerFactoryPluginInterface {
  use TaxonomyIndexDepthQueryTrait;
  
  /**
   * {@inheritdoc}
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, protected EntityRepositoryInterface $entityRepository) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
  }
  
  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static($configuration, $plugin_id, $plugin_definition, $container->get('entity.repository'));
  }
  
  /**
   * {@inheritdoc}
   */
  protected function defineOptions() {
    $options = parent::defineOptions();
    $options['depth'] = [
      'default' => 0,
    ];
    $options['break_phrase'] = [
      'default' => FALSE,
    ];
    $options['use_taxonomy_term_path'] = [
      'default' => FALSE,
    ];
    return $options;
  }
  
  /**
   * {@inheritdoc}
   */
  public function buildOptionsForm(&$form, FormStateInterface $form_state) {
    $form['depth'] = [
      '#type' => 'weight',
      '#title' => $this->t('Depth'),
      '#default_value' => $this->options['depth'],
      '#description' => $this->t('The depth will match nodes tagged with terms in the hierarchy. For example, if you have the term "fruit" and a child term "apple", with a depth of 1 (or higher) then filtering for the term "fruit" will get nodes that are tagged with "apple" as well as "fruit". If negative, the reverse is true; searching for "apple" will also pick up nodes tagged with "fruit" if depth is -1 (or lower).'),
    ];
    $form['break_phrase'] = [
      '#type' => 'checkbox',
      '#title' => $this->t('Allow multiple values'),
      '#description' => $this->t('If selected, users can enter multiple values in the form of 1+2+3. Due to the number of JOINs it would require, AND will be treated as OR with this filter.'),
      '#default_value' => !empty($this->options['break_phrase']),
    ];
    parent::buildOptionsForm($form, $form_state);
  }
  
  /**
   * Override defaultActions() to remove summary actions.
   */
  protected function defaultActions($which = NULL) {
    if ($which) {
      if (in_array($which, [
        'ignore',
        'not found',
        'empty',
        'default',
      ])) {
        return parent::defaultActions($which);
      }
      return;
    }
    $actions = parent::defaultActions();
    unset($actions['summary asc']);
    unset($actions['summary desc']);
    unset($actions['summary asc by count']);
    unset($actions['summary desc by count']);
    return $actions;
  }
  
  /**
   * {@inheritdoc}
   */
  public function query($group_by = FALSE) {
    $this->ensureMyTable();
    if (!empty($this->options['break_phrase'])) {
      $break = static::breakString($this->argument);
      if ($break->value === [
        -1,
      ]) {
        return FALSE;
      }
      $tids = $break->value;
    }
    else {
      $tids = $this->argument;
    }
    $this->addSubQueryJoin($tids);
  }
  
  /**
   * {@inheritdoc}
   */
  public function title() {
    $term = $this->entityRepository
      ->getCanonical('taxonomy_term', $this->argument);
    if (!empty($term)) {
      return $term->label();
    }
    // @todo Review text.
    return $this->t('No name');
  }

}