Method isAllowedToSubmit

public static function isAllowedToSubmit()
{
    $paramsC = ComponentHelper::getParams('com_phocacart');
    $submit_item_registered_only = $paramsC->get('submit_item_registered_only', 1);
    $user = PhocacartUser::getUser();
    $allowed = false;
    if ($submit_item_registered_only == 0) {
        $allowed = true;
    } else {
        if ($submit_item_registered_only == 1 && (int) $user->id > 0) {
            $allowed = true;
        }
    }
    return $allowed;
}