Can I Add More Items To The Yii::app()->User ?

Can I add more Items to the Yii::app()->user such as adding user_gender, dob and etc ?

And can I define a setter method in the UserIdentity class that allows me to update these

information throughout my application life cycle such as in some controllers ? I appreciate

some help guys.

You can find detailed information here:

http://www.yiiframework.com/wiki/474/implementing-a-flat-user-access-system

http://www.yiiframework.com/wiki/60/add-information-to-yii-app-user-by-extending-cwebuser

http://www.yiiframework.com/wiki/6/how-to-add-more-information-to-yii-app-user