What does superuser mean in the rights-extension of Yii?

Question

I am using the rights extension of Yii and get this error:

There must be at least one superuser!

I don't know what this superuser means since I am using the default authentication with user admin and demo. After reading the documentation of rights extension, I tried to configure rights with:

'rights'=>array(
    'superuserName'=>'admin',
    'install'=>true
),

But it doesn't work, I have searched the internet but got no result.

Answer 1

you need to connect the user table with a table AuthAssignment, whose name has been declared in the array setting

'modules'=>array(
'rights'=>array(
    'superuserName'=>'admin',
     ),
 ),

then, you have to change the table AuthAssignment userid field that refer to field id on table user