taxonomy_autocomplete

• Drupal 4.7
• Drupal 5
• Drupal 6
• Drupal 7

Versions

4.7 – 6

taxonomy_autocomplete($vid, $string = '')

7

taxonomy_autocomplete($field_name, $tags_typed = '')

Helper function for autocompletion

Code

modules/taxonomy/taxonomy.pages.inc, line 79

<?php
function taxonomy_autocomplete($field_name, $tags_typed = '') {
  $field = field_info_field($field_name);

  // The user enters a comma-separated list of tags. We only autocomplete the last tag.
  $tags_typed = drupal_explode_tags($tags_typed);
  $tag_last = drupal_strtolower(array_pop($tags_typed));

  $matches = array();
  if ($tag_last != '') {

    // Part of the criteria for the query come from the field's own settings.
    $vids = array();
    foreach ($field['settings']['allowed_values'] as $tree) {
      $vids[] = $tree['vid'];
    }

    $query = db_select('taxonomy_term_data', 't');
    $query->addTag('translatable');
    $query->addTag('term_access');

    // Do not select already entered terms.
    if (!empty($tags_typed)) {
      $query->condition('t.name', $tags_typed, 'NOT IN');
    }
    $tags_return = $query
      ->fields('t', array('tid', 'name'))
      ->condition('t.vid', $vids)
      // Select rows that match by term name.
      ->condition(db_or()
      ->where("t.name LIKE :last_string", array(':last_string' => '%' . $tag_last . '%'))
      )
      ->range(0, 10)
      ->execute()
      ->fetchAllKeyed();

    $prefix = count($tags_typed) ? implode(', ', $tags_typed) . ', ' : '';

    $term_matches = array();
    foreach ($tags_return as $tid => $name) {
      $n = $name;
      // Term names containing commas or quotes must be wrapped in quotes.
      if (strpos($name, ',') !== FALSE || strpos($name, '"') !== FALSE) {
        $n = '"' . str_replace('"', '""', $name) . '"';
      }
      else {
        $term_matches[$prefix . $n] = filter_xss($name);
      }
    }
  }

  drupal_json_output($term_matches);
}
?>

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