tuku/application/api/controller/Product.php

<?php

namespace app\api\controller;

use app\common\controller\Api;
use think\Db;
use addons\epay\library\Service;
/**
 * 商品
 */
class Product extends Api
{
    protected $noNeedLogin = ['lists'];
    protected $noNeedRight = ['*'];


    public function lists()
    {
        $where = ['is_show'=>1];

        $list = Db::name('product')->field('content',true)->where($where)->order('weigh desc')->autopage()->select();

        $list = list_domain_image($list,['images']);

        if(!empty($list)){
            foreach($list as $key => &$item){
                //第一个图
                $item['image'] = isset($item['images'][0]) ? $item['images'][0] : '';
            }
        }

        $this->success(1,$list);
    }

    public function info(){
        $id = input('id',0);

        $info = Db::name('product')->where('is_show',1)->where('id',$id)->find();
        if(!$info){
            $this->error('不存在的商品');
        }
        $info = info_domain_image($info,['images']);
        //第一个图
        $info['image'] = isset($info['images'][0]) ? $info['images'][0] : '';

        $this->success(1,$info);
    }

    //兑换
    public function buy(){
        $remark = input('remark','');
        $product_id = input('id',0);
        $info = Db::name('product')->where('is_show',1)->where('id',$product_id)->find();
        if(!$info){
            $this->error('不存在的商品');
        }

        Db::startTrans();

        //下单
        $data = [
            'order_no' => createUniqueNo('A',$this->auth->id),
            'product_id' => $product_id,
            'user_id'    => $this->auth->id,
            'createtime' => time(),
            'pay_fee' => $info['price'],
            'remark' => $remark,
            'status' => 0,
        ];

        $order_id = Db::name('order')->insertGetId($data);
        if(!$order_id){
            Db::rollback();
            $this->error('兑换失败');
        }

        //扣钱
        $rs_wallet = model('wallet')->lockChangeAccountRemain($this->auth->id,'score',-$info['price'],3,'积分兑换'.$info['title'],'order',$order_id);
        if($rs_wallet['status'] == false){
            Db::rollback();
            $this->error($rs_wallet['msg']);
        }

        Db::commit();
        $this->success('兑换成功',$order_id);


    }



}