function apachesolr_nodereference_indexing_callback in Apache Solr Search 8

Same name and namespace in other branches

1. 6.3 apachesolr.index.inc \apachesolr_nodereference_indexing_callback()
2. 7 apachesolr.index.inc \apachesolr_nodereference_indexing_callback()

Indexing callback for the node_reference module by the references module

Parameters

object $entity:

string $field_name:

string $index_key:

array $field_info:

Return value

array $fields

1 string reference to 'apachesolr_nodereference_indexing_callback'

node_reference_apachesolr_field_mappings in ./apachesolr.module

Implements hook_apachesolr_field_mappings() on behalf of References (node_reference).

File

./apachesolr.index.inc, line 1241

Functions related to Apache Solr indexing operations.

Code

function apachesolr_nodereference_indexing_callback($entity, $field_name, $index_key, array $field_info) {
  $fields = array();

  // Druapl 7 core sets all fields to use LANGUAGE_NONE even if the entity
  // (e.g. node) is flagged as being in a specific language.
  if (!empty($entity->{$field_name}) && isset($entity->{$field_name}[LANGUAGE_NONE])) {
    $index_key = apachesolr_index_key($field_info);
    foreach ($entity->{$field_name}[LANGUAGE_NONE] as $reference) {
      if ($index_value = !empty($reference['nid']) ? $reference['nid'] : FALSE) {
        $fields[] = array(
          'key' => $index_key,
          'value' => $index_value,
        );
      }
    }
  }
  return $fields;
}