function upload_element_js in Upload element 6

Handles the AHAH upload request.

Parameters

string $name The elements name.:

1 string reference to 'upload_element_js'

upload_element_menu in ./upload_element.module

Implementation of hook_menu().

File

./upload_element.pages.inc, line 123

Handles image previews from both temperary and perminant file directories.

Code

function upload_element_js($form_build_id, $form_id, $name) {
  $GLOBALS['devel_shutdown'] = FALSE;
  $form_state = array(
    'submitted' => FALSE,
  );

  // The only way to detect if the max post size was exceeded is to check the $_POST
  // The $for_build_id is potentially stale (from changing form_build_id)
  // but is the only reference we have if the $_POST has been dropped by
  // PHP by exceeding the MAX_FORM_SIZE limit.
  // TODO: Find out what is happening to the AHAH during rebuild.
  if (empty($_POST)) {
    form_set_error($name, t("The file %file could not be saved, because it exceeds this form's size limit %size for file uploads.", array(
      '%file' => $_FILES['files']['name'][$name],
      '%size' => format_size(file_upload_max_size()),
    )), 'error');
  }
  else {
    $form_build_id = $_POST['form_build_id'];
  }
  if ($form_build_id && ($form = form_get_cache($form_build_id, $form_state))) {
    $form += array(
      '#post' => $_POST,
    );
    if ($element = locate_upload_element($form, $name, array(
      '#is_ahah' => TRUE,
    ))) {
      $form = form_builder($form_id, $form, $form_state);
      $element = locate_upload_element($form, $name);
      $element['#messages'] = theme('status_messages');
      $output = drupal_render($element);
      print drupal_to_js(array(
        'data' => $output,
      ));
      exit;
    }
  }
  else {
    form_set_error('form_token', t('Validation error, please try again. If this error persists, please contact the site administrator.'));
  }
  $output = theme('status_messages');
  print drupal_to_js(array(
    'status' => TRUE,
    'data' => $output,
  ));
  exit;
}