public function getErrors()
{
$errors = '';
if (!self::$opened) {
// for non-custom groups, normal error handling applies
$errors = $this->app['former']->getErrors();
} elseif (!empty($this->validations)) {
// error handling only when validations specified for custom groups
foreach ($this->validations as $validation) {
$errors .= $this->app['former']->getErrors($validation);
}
}
return $errors;
}