search_api_attachments-8.x-1.0-beta16/search_api_attachments.module

<?php

/**
 * @file
 * Implement hooks and help functions to delete extracted files cache content.
 */

use Drupal\Core\Entity\ContentEntityType;
use Drupal\Core\Entity\Display\EntityViewDisplayInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\file\Entity\File;
use Drupal\search_api\Entity\Index;

/**
 * Implements hook_ENTITY_TYPE_update().
 */
function search_api_attachments_file_update(File $file) {
  _search_api_attachments_delete_cache($file);
}

/**
 * Implements hook_ENTITY_TYPE_delete().
 */
function search_api_attachments_file_delete(File $file) {
  _search_api_attachments_delete_cache($file);
}

/**
 * Implements hook_cache_flush().
 */
function search_api_attachments_cache_flush() {
  $config = \Drupal::config('search_api_attachments.admin_config');
  $preserve_cache = $config->get('preserve_cache');
  if (!$preserve_cache) {
    // Clear all cached data.
    $attachments_cache = \Drupal::service('search_api_attachments.cache');
    $attachments_cache->clearAll();
  }
}

/**
 * Helper function to delete a file extracted data cache.
 *
 * @param \Drupal\file\Entity\File $file
 *   The file object.
 */
function _search_api_attachments_delete_cache(File $file) {
  $collection = 'search_api_attachments';
  $key = $collection . ':' . $file->id();
  \Drupal::keyValue($collection)->delete($key);
}

/**
 * Implements hook_theme().
 */
function search_api_attachments_theme() {
  return [
    'saa' => [
      'variables' => [
        'message' => NULL,
        'type' => NULL,
      ],
    ],
  ];
}

/**
 * Implements hook_help().
 */
function search_api_attachments_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    case 'help.page.search_api_attachments':
      $text = file_get_contents(dirname(__FILE__) . '/README.md');
      if (!\Drupal::moduleHandler()->moduleExists('markdown')) {
        return '<pre>' . $text . '</pre>';
      }
      else {
        // Use the Markdown filter to render the README.
        $filter_manager = \Drupal::service('plugin.manager.filter');
        $settings = \Drupal::configFactory()->get('markdown.settings')->getRawData();
        $config = ['settings' => $settings];
        $filter = $filter_manager->createInstance('markdown', $config);
        return $filter->process($text, 'en');
      }
  }
  return NULL;
}

/**
 * Implements hook_entity_extra_field_info().
 */
function search_api_attachments_entity_extra_field_info() {
  $extra = [];

  $entity_types = \Drupal::entityTypeManager()->getDefinitions();
  $bundle_info = \Drupal::getContainer()->get('entity_type.bundle.info');
  foreach ($entity_types as $entity_type_id => $entity_type) {
    if ($entity_type instanceof ContentEntityType) {
      $bundles = $bundle_info->getBundleInfo($entity_type_id);
      foreach ($bundles as $bundle => $data) {
        $extra[$entity_type_id][$bundle]['display']['search_api_attachments'] = [
          'label' => t('Search api attachments'),
          'description' => t('An attachments field.'),
          'weight' => 100,
          'visible' => FALSE,
        ];
      }
    }
  }
  return $extra;
}

/**
 * Implements hook_entity_view().
 */
function search_api_attachments_entity_view(array &$build, EntityInterface $entity, EntityViewDisplayInterface $display, $view_mode) {
  $attachments_component = $display->getComponent('search_api_attachments');
  if ($attachments_component !== NULL) {
    $indexes = Index::loadMultiple();
    foreach ($indexes as $index) {
      $index_fields = array_keys($index->getFields());

      $fields = array_filter($index_fields, fn($element) =>
        str_starts_with($element, 'saa_')
        ? $element : NULL);

      if ($fields) {
        foreach ($fields as $field) {
          ($query = \Drupal::entityTypeManager()
            ->getStorage('search_api_index')
            ->load($index->id())
            ->query()
          )
            ->addCondition('nid', $entity->id());

          $items = $query->execute()->getResultItems();

          $item = reset($items);
          $content = $item->getField($field)->getValues()[0];

          $build[$field] = [
            '#plain_text' => $content->getText(),
          ];
        }
      }
    }
  }
}