Yii мульти-табличный CActiveRecord / multitable CActiveRecord

ActiveRecord.php

<?php

class ActiveRecord extends CActiveRecord
{
    private static $_tableName;

    public static function instance($tableName)
    {
        self::$_tableName=$tableName;
        return parent::model(__CLASS__);
    }

    public function tableName()
    {
        return self::$_tableName;
    }
}

Using

$models = MyModelName::instance('my_table_name')->findAll();