/**
* @param AbstractField|Group|Fieldset $element
*
* @return void
*/
private function addErrorClass($element)
{
if ($element instanceof Group || $element instanceof Fieldset) {
foreach ($element->getFields() as $field) {
if ($element instanceof Group || $element instanceof Fieldset) {
$this->addErrorClass($field);
} elseif ($field->isRequired()) {
$field->addClass('has-error');
}
}
} elseif ($element->isRequired()) {
$element->addClass('has-error');
}
}
/**
* @param Group|Fieldset|AbstractField $field
*
* @return array|Fields\AbstractField[]
*/
private function getFields($field)
{
if ($field instanceof Group || $field instanceof Fieldset) {
$elements = $field->getFields();
} elseif ($field instanceof AbstractField) {
$elements = [$field];
} else {
throw new \InvalidArgumentException(sprintf("Invalid type '%s'", is_object($field) ? get_class($field) : gettype($field)));
}
return $elements;
}