天宇的专栏

<br /> <br />ActiveRecord的relations定义相关的类，可以很方便的取到相应的值。<br />比如：<br />class User extends CActiveRecord{……public function relations(){return array('group' => array(self::BELONGS_TO, 'Group', 'group_id'),);}……} <br />可以很方便的通过$user->group获