function path_alias_xt_get_path_alias in Extended Path Aliases 7

Same name and namespace in other branches

1. 6 path_alias_xt.module \path_alias_xt_get_path_alias()

Override the call drupal_get_path_alias()

This is used to override the call drupal_get_path_alias(), which occurs for instance in the block.module. There is no hook available for this, so this function needs to be invoked via a call inserted in function drupal_get_path_alias() or by using the PECL runkit. Both options are described in detail in the README file.

@todo simplify this code w.r.t 'user' exceptions

Parameters

string $path: If omitted the current path is used.

string $path_language: The path language.

Return value

string The alias for $path or $path unchanged if no alias was found.

File

./path_alias_xt.module, line 180

Extended Path Aliases.

Code

function path_alias_xt_get_path_alias($path = NULL, $path_language = NULL) {
  if ($path == NULL) {
    $path = $_GET['q'];
  }

  // First test for special case user/%.
  global $user;
  $user_special = variable_get('path_alias_xt_user_special', TRUE);
  if ($user_special && preg_match('{^user/([0-9]+)\\z}', $path, $matches) && $matches[1] == $user->uid) {

    // For current user rather than applying 'user/%' alias, return
    // 'user' alias, if it exists.
    if ($user_alias = drupal_lookup_path('alias', 'user', $path_language)) {
      return $user_alias;
    }
  }
  if ($alias = drupal_lookup_path('alias', $path, $path_language)) {
    return $alias;
  }
  $pattern = variable_get('path_alias_xt_regex_pattern', PATH_ALIAS_XT_DEFAULT_NODE_OR_USER_MATCH);
  if (preg_match($pattern, $path, $matches)) {

    // $matches[0] equals $path, eg 'node/123/edit'
    // $matches[1] will equal 'node' or 'user' or 'taxonomy/term'
    // $matches[2] will be the node, user or term id, e.g '123'
    // $matches[3] is the path extension, e.g., 'edit'.
    if ($user_special && $matches[1] == 'user' && $matches[2] == $user->uid) {

      // For current user rather than applying 'user/%' alias, apply
      // 'user' alias, if it exists.
      if ($user_alias = drupal_lookup_path('alias', 'user', $path_language)) {
        return "{$user_alias}/{$matches[3]}";
      }
    }
    if ($alias = drupal_lookup_path('alias', "{$matches[1]}/{$matches[2]}", $path_language)) {
      return "{$alias}/{$matches[3]}";
    }
  }
  return $path;
}