function path_pathauto_is_alias_reserved in Pathauto 7

Implements hook_pathauto_is_alias_reserved() on behalf of path.module.

1 call to path_pathauto_is_alias_reserved()

_pathauto_alias_exists in ./pathauto.inc

Check to see if there is already an alias pointing to a different item.

File

./pathauto.module, line 583

Main file for the Pathauto module, which automatically generates aliases for content.

Code

function path_pathauto_is_alias_reserved($alias, $source, $langcode) {

  // For language neutral content, we need to make sure the alias doesn't
  // collide with any existing aliases. For localized content, just make sure
  // it doesn't collide with same language or language neutral aliases.
  if ($langcode != LANGUAGE_NONE) {
    return (bool) db_query("SELECT 1 FROM {url_alias} WHERE source <> :source AND alias = :alias AND language IN (:langcodes)", array(
      ':source' => $source,
      ':alias' => $alias,
      ':langcodes' => array(
        $langcode,
        LANGUAGE_NONE,
      ),
    ))
      ->fetchField();
  }
  else {
    return (bool) db_query("SELECT 1 FROM {url_alias} WHERE source <> :source AND alias = :alias", array(
      ':source' => $source,
      ':alias' => $alias,
    ))
      ->fetchField();
  }
}