<?php
namespace Admin\Model;
use Think\Model\RelationModel;
class FeedbackModel extends RelationModel{
    //关联模型
    protected $_link = array(
        //类别
        "feedback_cat"=>array(
            'mapping_type'  => self::BELONGS_TO,
            'foreign_key'   => 'catid',
        ),
        //用户
        "member"=>array(
            'mapping_type'  => self::BELONGS_TO,
            'mapping_fields'  => "truename,member_id",
            'foreign_key'   => 'member_id',
        )         
    );
}