Joomla: custom fields in module

    <?php
    $item->jcfields = FieldsHelper::getFields('com_content.article', $item, true);
            $fields = [];
            foreach($item->jcfields as $jcfield)
            {
                $fields[$jcfield->name] = $jcfield;
            }

            //print_r($fields);
                    $pubLink = $fields['link-do-publikacji']->rawvalue;
                    ?>