point_mall_card/application/common/model/coupon/Code.php

<?php
namespace app\common\model\coupon;
use think\Model;

class Code extends Model{

	protected $name = 'coupon_code';

	public function coupon(){
		return $this->belongsTo('app\common\model\Coupon');
	}

	public function getStateTextAttr($value,$data){
		$state = $data['state'];
		$text = [0=>'待售卖',1=>'已售卖'];
		return isset($text[$state])?$text[$state]:$state;
	}
}