Constraint Validator Issue

Could you provide a minimal code example? As far as I know, Constraints and ConstraintValidators are usually added to fields in hook_entity_bundle_field_info_alter() implementations. I don't know how those would be used in context of a custom form.

Hi @dieterholvoet

For this one I think the issue is on toastify\Element\ToastifyStatusMessages, renderMessages interrupts all messages event the messages that Contstraint validator shows

 public static function renderMessages($type = NULL): array {
    if (!\Drupal::currentUser()->hasPermission('show toastify messages')) {
      return parent::renderMessages($type);
    }

    $render = [];
    if (isset($type)) {
      $messages = [
        $type => \Drupal::messenger()->deleteByType($type),
      ];
    }
    else {
      $messages = \Drupal::messenger()->deleteAll();
    }

    if ($messages) {
      // Pass the messages to Toastify.
      $render['#attached']['drupalSettings']['toastify']['messages'] = $messages;
    }

    return $render;
  }

A sample screenshot is the current behavior on what toastify does
https://www.drupal.org/files/issues/2024-09-26/Screenshot%202024-09-26%2... →

VS on what we expect
https://www.drupal.org/files/issues/2024-09-26/Screenshot%202024-09-26%2... →

Okay, but you haven't given me more information on how to reproduce the issue. See my previous comment.

Hi @dieterholvoet

Steps on how to reproduce the issue

1. Add constraint on your custom form field, example

 $form['my_custom_field'] = [
   '#type' => 'managed_file',
          '#upload_validators' => [
            'CustomFormat' => ['format' => $format],
          ],
];

2. Create CustomFormatConstraint and CustomFormatConstraintValidator classes
3. Add validate to CustomFormatConstraintValidator
4. Test if the message from your constraint will show up

Currently what is happening if we have invalid value to the field
https://www.drupal.org/files/issues/2024-09-26/Screenshot%202024-09-26%2... →