rthriller

Hello, Reading chapter 7 (page 136), I understand what static instance (and method) are but what I didn't understand is : Why is the findByPK a non-static method. If findByPK was static then simply we get : $model = Page::findByPk(); I know findByPK was generated by gii, my question is not 100% related to this book content but to yii philosophy and design. Thanks.