taxonomy_field_update

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7

taxonomy_field_update($obj_type, $object, $field, $instance, $langcode, &$items)

Implements hook_field_update().

Related topics

indexing Taxonomy functions maintaining {taxonomy_index}.

Taxonomy uses default field storage to store canonical relationships between terms and fieldable entities. However its most common use case requires listing all content associated with a term or group of terms sorted by creation date. To avoid slow...

Code

modules/taxonomy/taxonomy.module, line 1415

<?php
function taxonomy_field_update($obj_type, $object, $field, $instance, $langcode, &$items) {
  if (variable_get('taxonomy_maintain_index_table', TRUE) && $field['storage']['type'] == 'field_sql_storage' && $obj_type = 'node') {
    $first_call = &drupal_static(__FUNCTION__, array());

    // We don't maintain data for old revisions, so clear all previous values
    // from the table. Since this hook runs once per field, per object, make
    // sure we only wipe values once.
    if (!isset($first_call[$object->nid])) {
      $first_call[$object->nid] = FALSE;
      db_delete('taxonomy_index')->condition('nid', $object->nid)->execute();
    }
    // Only save data to the table if the node is published.
    if ($object->status) {
      $query = db_insert('taxonomy_index')->fields(array('nid', 'tid', 'sticky', 'created'));
      foreach ($items as $item) {
        $query->values(array(
          'nid' => $object->nid,
          'tid' => $item['tid'],
          'sticky' => $object->sticky,
          'created' => $object->created,
        ));
      }
      $query->execute();
    }
  }
}
?>

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