public function __construct($class, $id = null)
{
$reflection = new ReflectionClass($class);
$model = $reflection->getShortName();
if ($id) {
$message = sprintf('Model `%s` not found by id `%s`', $model, $id);
} else {
$message = sprintf('Model `%s` not found', $model);
}
parent::__construct($message);
}