Assigning roles to a user in registration process [yii (users + auth)]

Question

Im using users + auth modules in Yii. I've made 3 roles in auth using administration:

auth/role/ 

1. Admin
2. Company
3. Other

Also, in users module

user/profileField

I've made one profile field which will determinate in registration page, what account you want to make

[boolean: true="Company" false="Other"]

Admin acc can be only created in module

I want to assign roles based on this field in registration process. I assume i should write this in this method (?):

/user/controllers/RegistrationController.php:
public function actionRegistration(){...
...
 if ($model->save()) {
                        $profile->user_id=$model->id;
                        ....my role assign here ?...
                        $profile->save();
 ...

btw: is it classy to change /user/controllers/RegistrationController.php directly ?

Answer 1

To assign roles to users use:

Yii::app()->authManager->assign($role,$userId);

as explained here