Had to implement PayPal payments for a client and would like to share part of my code with you. Because the tutorial will become too long, I'll leave some code to be done by you, e.g. creating models, controllers and db tables for products, orders.
Using CActiveRecord->updateAll() and CActiveRecord->deleteAll() with scopes and criteria requires some tricks that are explained in this article. While findAll() , find() and some other methods use scopes automatically, updateAll() and deleteAll() do not.
MrFisk is a sleek little bot hanging out in the official #yii IRC channel on freenode, meant to serve Yii users with documentation lookups and other things. This document intends to provide a summary of what MrFisk can do for you and how to use his fin^H^Heatures.