file_managed_file_validate

Versions

7

file_managed_file_validate(&$element, &$form_state)

An #element_validate callback for the managed_file element.

Code

modules/file/file.module, line 532

<?php
function file_managed_file_validate(&$element, &$form_state) {
  // If referencing an existing file, only allow if there are existing
  // references. This prevents unmanaged files from being deleted if this
  // item were to be deleted.
  $clicked_button = end($form_state['clicked_button']['#parents']);
  if ($clicked_button != 'remove_button' && !empty($element['fid']['#value'])) {
    if ($file = file_load($element['fid']['#value'])) {
      if ($file->status == FILE_STATUS_PERMANENT) {
        $reference_count = 0;
        foreach (module_invoke_all('file_references', $file) as $module => $references) {
          $reference_count += $references;
        }
        if ($reference_count == 0) {
          form_error($element, t('Referencing to the file used in the !name field is not allowed.', array('!name' => $element['#title'])));
        }
      }
    }
    else {
      form_error($element, t('The file referenced by the !name field does not exist.', array('!name' => $element['#title'])));
    }
  }

  // Check required property based on the FID.
  if ($element['#required'] && empty($element['fid']['#value']) && !in_array($clicked_button, array('upload_button', 'remove_button'))) {
    form_error($element['upload'], t('!name field is required.', array('!name' => $element['#title'])));
  }

  // Consolidate the array value of this field to a single FID.
  if (!$element['#extended']) {
    form_set_value($element, $element['fid']['#value'], $form_state);
  }
}
?>

Login or register to post comments