public function signUp($login_name, $password, $email)
{
// to improve DB access it's better to pass id for object save
// save user
$user = new User();
$user->setCulture($this->getCulture());
$user->setName($login_name);
// absolutely needed for i18n record creation here !
// Get data from YML config file.
$master_user_id = sfConfig::get('app_user_creation_master_id');
$is_minor = sfConfig::get('app_user_creation_is_minor');
$comment = sfConfig::get('app_user_creation_comment');
$user->doSaveWithMetadata($master_user_id, $is_minor, $comment);
// save private data
$private_data = new UserPrivateData();
$private_data->setLoginName($login_name);
$private_data->setUsername($login_name);
// username is used as nickname in forum, need to be set
$private_data->setTopoName($user->getName());
$private_data->setPassword($password);
$private_data->setEmail($email);
$private_data->setPreferedLanguageList($this->getCulturesForDocuments());
$private_data->setId($user->getId());
$private_data->setGroupId(4);
$private_data->setRegistered(time());
$private_data->save();
// add this user to pending users and logged
$user->addToGroups(array('pending', 'logged'));
return true;
}