public function FacetsPrettyPathsUrlProcessor::buildUrls in Facets Pretty Paths 8

Adds urls to the results.

Parameters

\Drupal\facets\FacetInterface $facet: The facet.

\Drupal\facets\Result\ResultInterface[] $results: An array of results.

Return value

\Drupal\facets\Result\ResultInterface[] An array of results with added urls.

Overrides UrlProcessorInterface::buildUrls

File

src/Plugin/facets/url_processor/FacetsPrettyPathsUrlProcessor.php, line 86

Class

FacetsPrettyPathsUrlProcessor

Pretty paths URL processor.

Namespace

Drupal\facets_pretty_paths\Plugin\facets\url_processor

Code

public function buildUrls(FacetInterface $facet, array $results) {

  // No results are found for this facet, so don't try to create urls.
  if (empty($results)) {
    return [];
  }
  $initialized_coders = [];
  $initialized_facets = [];
  $filters = $this
    ->getActiveFilters();
  $coder_plugin_manager = \Drupal::service('plugin.manager.facets_pretty_paths.coder');
  $coder_id = $facet
    ->getThirdPartySetting('facets_pretty_paths', 'coder', 'default_coder');
  $coder = $coder_plugin_manager
    ->createInstance($coder_id, [
    'facet' => $facet,
  ]);

  /** @var \Drupal\facets\Result\ResultInterface $result */
  foreach ($results as &$result) {
    $raw_value = $result
      ->getRawValue();
    $filters_current_result = $filters;

    // If the value is active, remove the filter string from the parameters.
    if ($result
      ->isActive()) {
      if (($key = array_search($raw_value, $filters_current_result[$result
        ->getFacet()
        ->id()])) !== FALSE) {
        unset($filters_current_result[$result
          ->getFacet()
          ->id()][$key]);
      }
      if ($result
        ->getFacet()
        ->getEnableParentWhenChildGetsDisabled() && $result
        ->getFacet()
        ->getUseHierarchy()) {

        // Enable parent id again if exists.
        $parent_ids = $result
          ->getFacet()
          ->getHierarchyInstance()
          ->getParentIds($raw_value);
        if (isset($parent_ids[0]) && $parent_ids[0]) {
          $filters_current_result[$result
            ->getFacet()
            ->id()][] = $coder
            ->encode($parent_ids[0]);
        }
      }
    }
    else {

      // Exclude others results if we are in the show_only_one_result mode.
      if ($result
        ->getFacet()
        ->getShowOnlyOneResult()) {
        $filters_current_result[$result
          ->getFacet()
          ->id()] = [
          0 => $raw_value,
        ];
      }
      else {
        $filters_current_result[$result
          ->getFacet()
          ->id()][] = $raw_value;
      }
      if ($result
        ->getFacet()
        ->getUseHierarchy()) {

        // If hierarchy is active, unset parent trail and every child when
        // building the enable-link to ensure those are not enabled anymore.
        $parent_ids = $result
          ->getFacet()
          ->getHierarchyInstance()
          ->getParentIds($raw_value);
        $child_ids = $result
          ->getFacet()
          ->getHierarchyInstance()
          ->getNestedChildIds($raw_value);
        $parents_and_child_ids = array_merge($parent_ids, $child_ids);
        foreach ($parents_and_child_ids as $id) {
          if (($key = array_search($id, $filters_current_result[$result
            ->getFacet()
            ->id()])) !== FALSE) {
            unset($filters_current_result[$result
              ->getFacet()
              ->id()][$key]);
          }
        }
      }
    }

    // Now we start transforming $filters_current_result array into a string
    // which we append later to the current path.
    $pretty_paths_presort_data = [];
    foreach ($filters_current_result as $facet_id => $active_values) {
      foreach ($active_values as $active_value) {

        // Ensure we only load every facet and coder once.
        if (!isset($initialized_facets[$facet_id])) {
          $facet = Facet::load($facet_id);
          $initialized_facets[$facet_id] = $facet;
          $coder_id = $facet
            ->getThirdPartySetting('facets_pretty_paths', 'coder', 'default_coder');
          $coder = $coder_plugin_manager
            ->createInstance($coder_id, [
            'facet' => $facet,
          ]);
          $initialized_coders[$facet_id] = $coder;
        }
        $encoded_value = $initialized_coders[$facet_id]
          ->encode($active_value);
        $pretty_paths_presort_data[] = [
          'weight' => $initialized_facets[$facet_id]
            ->getWeight(),
          'name' => $initialized_facets[$facet_id]
            ->getName(),
          'pretty_path_alias' => "/" . $initialized_facets[$facet_id]
            ->getUrlAlias() . "/" . $encoded_value,
        ];
      }
    }
    $pretty_paths_presort_data = $this
      ->sortByWeightAndName($pretty_paths_presort_data);
    $pretty_paths_string = implode('', array_column($pretty_paths_presort_data, 'pretty_path_alias'));
    $url = Url::fromUri('internal:' . $facet
      ->getFacetSource()
      ->getPath() . $pretty_paths_string);
    $url
      ->setOption('attributes', [
      'rel' => 'nofollow',
    ]);

    // First get the current list of get parameters.
    $get_params = $this->request->query;

    // When adding/removing a filter the number of pages may have changed,
    // possibly resulting in an invalid page parameter.
    if ($get_params
      ->has('page')) {
      $current_page = $get_params
        ->get('page');
      $get_params
        ->remove('page');
    }
    $url
      ->setOption('query', $get_params
      ->all());
    $result
      ->setUrl($url);

    // Restore page parameter again. See https://www.drupal.org/node/2726455.
    if (isset($current_page)) {
      $get_params
        ->set('page', $current_page);
    }
  }
  return $results;
}