/**
* Throw validation exception or append errors to form if it exists
* @throws fx_entity_validation_exception
*/
protected function throwInvalid()
{
$exception = new Exception\EntityValidation(fx::lang("Unable to save entity \"" . $this->getType() . "\""));
$exception->entity = $this;
$exception->addErrors($this->validate_errors);
$form = $this->getBoundForm();
if ($form) {
$exception->toForm($form);
} else {
throw $exception;
}
}