yusheng-php/application/api/model/MarketValue.php

<?php

namespace app\api\model;

use think\Db;
use think\Model;

class MarketValue extends Model
{
    /*
     * 身价变化
     * @param int $user_id 用户id
     * @param int $change_value 身价变化值
     * @param int $type 0-升值，1-系统降身价，2-使用降身卡
     *  * @return array
     */
    public function change($user_id,$change_value,$type){
        //判断是否为整数
        if(!is_int($change_value)){
            return ['code' => 0, 'msg' => '身价变化参数错误=》'.$change_value];
        }
        $before = db::name('user')->where('id',$user_id)->value('market_value');
        if($type == 0){
            $result = db::name('user')->where('id',$user_id)->setInc('market_value',$change_value);
            if($result){
                //记录一条日志
                db::name('vs_user_market_value_log')->insert([
                    'user_id' => $user_id,
                    'before' => $before,
                    'change_value' => $change_value,
                    'afterwards' => $before + $change_value,
                    'type' => $type,
                    'createtime' => time()
                ]);
            }
        }else{
            //降身价
            $change = $before-$change_value;
            if($change <= 1){
                $afterwards = 1;
                $result = db::name('user')->where('id',$user_id)->update(['market_value' => 1]);
            }else{
                $afterwards = $change;
                $result = db::name('user')->where('id',$user_id)->setDec('market_value',$change_value);
            }

            if($result){
                //记录一条日志
                db::name('vs_user_market_value_log')->insert([
                    'user_id' => $user_id,
                    'before' => $before,
                    'change_value' => $change_value,
                    'afterwards' => $afterwards,
                    'type' => $type,
                    'createtime' => time()
                ]);
            }
        }
        return ['code' => 1, 'msg' => '成功'];
    }
}