public static function S3fsCorsFile::validateManagedFile in S3 File System CORS Upload 8
Render API callback: Custom validation for the managed_file element.
Copied from \Drupal\file\Element\ManagedFile. Currently identical.
Overrides ManagedFile::validateManagedFile
File
- src/
Element/ S3fsCorsFile.php, line 354
Class
- S3fsCorsFile
- Provides an S3fs Cors File Element.
Namespace
Drupal\s3fs_cors\ElementCode
public static function validateManagedFile(&$element, FormStateInterface $form_state, &$complete_form) {
$clicked_button = end($form_state
->getTriggeringElement()['#parents']);
if ($clicked_button != 'remove_button' && !empty($element['fids']['#value'])) {
$fids = $element['fids']['#value'];
foreach ($fids as $fid) {
if ($file = File::load($fid)) {
// If referencing an existing file, only allow if there are existing
// references. This prevents unmanaged files from being deleted if
// this item were to be deleted. When files that are no longer in use
// are automatically marked as temporary (now disabled by default),
// it is not safe to reference a permanent file without usage. Adding
// a usage and then later on removing it again would delete the file,
// but it is unknown if and where it is currently referenced. However,
// when files are not marked temporary (and then removed)
// automatically, it is safe to add and remove usages, as it would
// simply return to the current state.
// @see https://www.drupal.org/node/2891902
if ($file
->isPermanent() && \Drupal::config('file.settings')
->get('make_unused_managed_files_temporary')) {
$references = static::fileUsage()
->listUsage($file);
if (empty($references)) {
// We expect the field name placeholder value to be wrapped in t()
// here, so it won't be escaped again as it's already marked safe.
$form_state
->setError($element, t('The file used in the @name field may not be referenced.', [
'@name' => $element['#title'],
]));
}
}
}
else {
// We expect the field name placeholder value to be wrapped in t()
// here, so it won't be escaped again as it's already marked safe.
$form_state
->setError($element, t('The file referenced by the @name field does not exist.', [
'@name' => $element['#title'],
]));
}
}
}
// Check required property based on the FID.
if ($element['#required'] && empty($element['fids']['#value']) && !in_array($clicked_button, [
'upload_button',
'remove_button',
])) {
// We expect the field name placeholder value to be wrapped in t()
// here, so it won't be escaped again as it's already marked safe.
$form_state
->setError($element, t('@name field is required.', [
'@name' => $element['#title'],
]));
}
// Consolidate the array value of this field to array of FIDs.
if (!$element['#extended']) {
$form_state
->setValueForElement($element, $element['fids']['#value']);
}
}