public function S3fsStream::dir_opendir in S3 File System 8.2

Same name and namespace in other branches

1. 8.3 src/StreamWrapper/S3fsStream.php \Drupal\s3fs\StreamWrapper\S3fsStream::dir_opendir()
2. 4.0.x src/StreamWrapper/S3fsStream.php \Drupal\s3fs\StreamWrapper\S3fsStream::dir_opendir()

Support for opendir().

Parameters

string $uri: The URI to the directory to open.

int $options: A flag used to enable safe_mode. This wrapper doesn't support safe_mode, so this parameter is ignored.

Return value

bool TRUE on success. Otherwise, FALSE.

Overrides PhpStreamWrapperInterface::dir_opendir

See also

http://php.net/manual/en/streamwrapper.dir-opendir.php

File

src/StreamWrapper/S3fsStream.php, line 1024

Class

S3fsStream

Defines a Drupal s3fs (s3fs://) stream wrapper class.

Namespace

Drupal\s3fs\StreamWrapper

Code

public function dir_opendir($uri, $options = NULL) {
  $this
    ->_assert_constructor_called();
  $this
    ->_debug("dir_opendir({$uri}, {$options}) called.");
  if (!$this
    ->_uri_is_dir($uri)) {
    return FALSE;
  }
  $scheme = \Drupal::service('file_system')
    ->uriScheme($uri);
  $bare_uri = rtrim($uri, '/');
  $slash_uri = $bare_uri . '/';

  // If this URI was originally a root folder (e.g. s3://), the above code
  // removed *both* slashes but only added one back. So we need to add
  // back the second slash.
  if ($slash_uri == "{$scheme}:/") {
    $slash_uri = "{$scheme}://";
  }

  // Get the list of uris for files and folders which are children of the
  // specified folder, but not grandchildren.
  $query = \Drupal::database()
    ->select('s3fs_file', 's');
  $query
    ->fields('s', [
    'uri',
  ]);
  $query
    ->condition('uri', $query
    ->escapeLike($slash_uri) . '%', 'LIKE');
  $query
    ->condition('uri', $query
    ->escapeLike($slash_uri) . '%/%', 'NOT LIKE');
  $child_uris = $query
    ->execute()
    ->fetchCol(0);
  $this->dir = [];
  foreach ($child_uris as $child_uri) {
    $this->dir[] = basename($child_uri);
  }
  return TRUE;
}