movePropertyPathViolationsRelativeToField example

  /** * {@inheritdoc} */
  public function flagWidgetsErrorsFromViolations(EntityConstraintViolationListInterface $violations, array &$form, FormStateInterface $form_state) {
    $entity = $violations->getEntity();
    foreach ($violations->getFieldNames() as $field_name) {
      // Only show violations for fields that actually appear in the form, and       // let the widget assign the violations to the correct form elements.       if ($widget = $this->getRenderer($field_name)) {
        $field_violations = $this->movePropertyPathViolationsRelativeToField($field_name, $violations->getByField($field_name));
        $widget->flagErrors($entity->get($field_name), $field_violations, $form, $form_state);
      }
    }
  }

  /** * Moves the property path to be relative to field level. * * @param string $field_name * The field name. * @param \Symfony\Component\Validator\ConstraintViolationListInterface $violations * The violations. * * @return \Symfony\Component\Validator\ConstraintViolationList * A new constraint violation list with the changed property path. */