public function SearchApiAttachmentsReferencesAlterSettings::alterItems in Search API attachments 7

Alter items before indexing.

Items which are removed from the array won't be indexed, but will be marked as clean for future indexing. This could for instance be used to implement some sort of access filter for security purposes (e.g., don't index unpublished nodes or comments).

Parameters

array $items: An array of items to be altered, keyed by item IDs.

Overrides SearchApiAttachmentsAlterSettings::alterItems

File

contrib/search_api_attachments_references/includes/callback_attachments_references_settings.inc, line 16

Search API data alteration callback.

Class

SearchApiAttachmentsReferencesAlterSettings

Code

public function alterItems(array &$items) {

  // Get the reference fields.
  $reference_fields = $this
    ->getReferenceFields();

  // Get the file fields.
  $file_fields = $this
    ->getFileFields();
  foreach ($items as &$item) {
    $item_wrapper = entity_metadata_wrapper($this->index
      ->getEntityType(), $item);

    // Case of entity reference fields.
    foreach ($reference_fields as $reference_field) {
      if (isset($item->{$reference_field['field_name']})) {
        $referenced_entities = $item_wrapper->{$reference_field['field_name']}
          ->value();

        // Manage case of field having no value and continue with next field.
        if (empty($referenced_entities)) {
          continue;
        }

        // Manage case of single value fields by reproducing the structure of
        // multiple values fields.
        if (is_object($referenced_entities)) {
          $referenced_entities = array(
            $referenced_entities,
          );
        }

        // Index the files content.
        if (!empty($file_fields)) {
          foreach ($file_fields as $file_field) {
            foreach ($referenced_entities as $referenced_entity) {

              // The referenced entity has the file field.
              if (isset($referenced_entity->{$file_field['field_name']}) && !empty($referenced_entity->{$file_field['field_name']})) {

                // Get the files.
                $files = field_get_items($reference_field['settings']['target_type'], $referenced_entity, $file_field['field_name']);
                if (!empty($files)) {

                  // Limit to the max number of value per field.
                  if (isset($this->options['number_indexed']) && $this->options['number_indexed'] != '0' && count($files) > $this->options['number_indexed']) {
                    $files = array_slice($files, 0, $this->options['number_indexed']);
                  }
                  foreach ($files as $file) {
                    if ($this
                      ->isFileIndexable($file, $item, $reference_field['field_name'])) {
                      $attachments = 'attachments_' . $file_field['field_name'];
                      if (isset($item->{$attachments})) {
                        $item->{$attachments} .= ' ' . $this
                          ->getFileContent($file);
                      }
                      else {
                        $item->{$attachments} = $this
                          ->getFileContent($file);
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}