How to define alias variable in yii?

Question

How to define alias variable in yii? In my yii app their are 3 types of role,

1. super-admin
2. admin,
3. user,

super admin can do admin functionalists and some more things, so
how can i define a alias role super-admin==admin but not vise-versa

Answer 1

See Auth Hierarchy from the guide, you can define that admin is a child of super-admin, also user could be a child of admin.

You may use an extension, such as yii-rights to handle this.