For those who feel, the Controller->accessRules() or RBAC (Role-Based Access Control) is too complicated or doesn't want the username(s) to be hard-coded in accessRules(), here is a very simple, easy-to-implement solution.
Todos los que hemos empezado a utilizar Yii para crear aplicaciones Web, nos hemos dado de bruces cuando hemos intentado poner a funcionar el RBAC (acceso de control basado en roles).