<?php

class SProductAlikeIspTopic extends MyActiveRecord {

    public static function model($className = __CLASS__)
    {
        return parent::model($className);
    }

    public function tableName()
    {
        return 'product_alike_isp_topic';
    }

    /**
     * 相同变式题数据
     * @param $examId
     * @param $select
     * @return array|null
     */
    public function getCommonTopic($examId, $select){

        $criteria = new CDbCriteria();
        $criteria->select = $select;
        $criteria->addCondition('exam_id='.$examId);
        return $this->findAll($criteria);
    }
}