function file_move

Moves a file to a new location and update the file's database entry.

• Checks if $source and $destination are valid and readable/writable.
• Performs a file move if $source is not equal to $destination.
• If file already exists in $destination either the call will error out, replace the file or rename the file based on the $replace parameter.
• Adds the new file to the files database.

Parameters

File $source: A file entity.

$destination: A string containing the destination that $source should be moved to. This must be a stream wrapper URI.

$replace: Replace behavior when the destination file already exists:

• FILE_EXISTS_REPLACE - Replace the existing file. If a managed file with the destination name exists then its database entry will be updated and $source->delete() called after invoking hook_file_move(). If no database entry is found then the source files record will be updated.
• FILE_EXISTS_RENAME - Append _{incrementing number} until the filename is unique.
• FILE_EXISTS_ERROR - Do nothing and return FALSE.

Return value

File: Resulting file entity for success, or FALSE in the event of an error.

See also

file_unmanaged_move()

hook_file_move()

Related topics

File

core/includes/file.inc, line 1093

API for handling file uploads and server file management.

Code

function file_move(File $source, $destination = NULL, $replace = FILE_EXISTS_RENAME) {
  if (!file_valid_uri($destination)) {
    if (($realpath = backdrop_realpath($source->uri)) !== FALSE) {
      watchdog('file', 'File %file (%realpath) could not be moved because the destination %destination is invalid. This may be caused by improper use of file_move() or a missing stream wrapper.', array('%file' => $source->uri, '%realpath' => $realpath, '%destination' => $destination));
    }
    else {
      watchdog('file', 'File %file could not be moved because the destination %destination is invalid. This may be caused by improper use of file_move() or a missing stream wrapper.', array('%file' => $source->uri, '%destination' => $destination));
    }
    backdrop_set_message(t('The specified file %file could not be moved because the destination is invalid. More information is available in the system log.', array('%file' => $source->uri)), 'error');
    return FALSE;
  }

  if ($uri = file_unmanaged_move($source->uri, $destination, $replace)) {
    $delete_source = FALSE;

    $file = clone $source;
    $file->uri = $uri;
    // If we are replacing an existing file re-use its database record.
    if ($replace == FILE_EXISTS_REPLACE) {
      $existing_files = file_load_multiple(array(), array('uri' => $uri));
      if (count($existing_files)) {
        $existing = reset($existing_files);
        $delete_source = TRUE;
        $file->fid = $existing->fid;
      }
    }
    // If we are renaming around an existing file (rather than a directory),
    // use its basename for the filename.
    elseif ($replace == FILE_EXISTS_RENAME && is_file($destination)) {
      $file->filename = backdrop_basename($destination);
    }

    $file->save();

    // Inform modules that the file has been moved.
    module_invoke_all('file_move', $file, $source);

    // Delete the original if it's not in use elsewhere.
    if ($delete_source && !file_usage_list($source)) {
      $source->delete();
    }

    return $file;
  }
  return FALSE;
}