lachang/app/api/controller/MyCoupon.php

<?php
// +----------------------------------------------------------------------
// | 萤火商城系统 [ 致力于通过产品和服务，帮助商家高效化开拓市场 ]
// +----------------------------------------------------------------------
// | Copyright (c) 2017~2021 https://www.yiovo.com All rights reserved.
// +----------------------------------------------------------------------
// | Licensed 这不是一个自由软件，不允许对程序代码以任何形式任何目的的再发行
// +----------------------------------------------------------------------
// | Author: 萤火科技 <admin@yiovo.com>
// +----------------------------------------------------------------------
declare (strict_types = 1);

namespace app\api\controller;

use app\api\model\coupon\CouponGenRedeemCodes;
use app\api\model\coupon\CouponRedeemCodes as CouponRedeemCodesModel;
use app\api\model\UserCoupon as UserCouponModel;
use app\api\service\User as UserService;
use app\common\exception\BaseException;
use think\cache\driver\Redis;

/**
 * 用户优惠券
 * Class Coupon
 * @package app\api\controller
 */
class MyCoupon extends Controller
{
    /**
     * 用户优惠券列表
     * @return mixed
     * @throws BaseException
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\DbException
     * @throws \think\db\exception\ModelNotFoundException
     */
    public function list()
    {
        $userId = UserService::getCurrentLoginUserId();
        $model = new UserCouponModel;
        $list = $model->getList($userId, $this->request->param());
        return $this->renderSuccess(compact('list'));
    }

    /**
     * 领取优惠券
     * @param int $couponId
     * @return array|\think\response\Json
     * @throws BaseException
     */
    public function receive(int $coupon_id)
    {
        $model = new UserCouponModel;
        if ($model->receive($coupon_id)) {
            return $this->renderSuccess([], '领取成功');
        }
        return $this->renderError($model->getError() ?: '领取失败');
    }

    /**
     * 兑换优惠券
     * @param string $redeemCode
     * @return array|\think\response\Json
     * @throws BaseException
     */
    public function exchange(string $redeemCode)
    {
        $CouponRedeemCodesModel = new CouponRedeemCodesModel;
        $genModel = new CouponGenRedeemCodes();

        $CouponRedeemCodes = $CouponRedeemCodesModel->with(['couponGenRedeemCodes'])->where('redeem_code',$redeemCode)->find();
        if(!$CouponRedeemCodes){
            return $this->renderError('错误，请重输入');
        }
        if ($CouponRedeemCodes['couponGenRedeemCodes']['amount'] - $CouponRedeemCodes['couponGenRedeemCodes']['used_amount']<=0){
            $CouponRedeemCodesModel->where('id', $CouponRedeemCodes->id)->update(['is_delete'=>1]);
            if($CouponRedeemCodes['couponGenRedeemCodes']['give_type'] == 1){
                return $this->renderError('领完啦');
            }else{
                return $this->renderError('兑换码已失效');
            }
        }

        $model = new UserCouponModel;
        if ($model->receive($CouponRedeemCodes['coupon_id'],true)) {
            if($CouponRedeemCodes['couponGenRedeemCodes']['give_type'] == 2){
                //更改激活码使用信息
                $CouponRedeemCodes->is_delete = 1;
                $CouponRedeemCodes->save();
            }
            //使用数量加一
            $genModel->where('id', $CouponRedeemCodes->coupon_gen_redeem_codes_id)
                ->where('used_amount','<',$CouponRedeemCodes['couponGenRedeemCodes']['amount'])
                ->inc('used_amount')
                ->update();
            return $this->renderSuccess([], '兑换成功');
        }
        return $this->renderError($model->getError() ?: '兑换失败');
    }

}