<?php

namespace app\admin\model;

use think\Model;
use think\Session;
use fast\Random;

class Admin extends Model
{

    // 开启自动写入时间戳字段
    protected $autoWriteTimestamp = 'int';
    // 定义时间戳字段名
    protected $createTime = 'createtime';
    protected $updateTime = 'updatetime';

    /**
     * 修改用户密码
     *
     * @param int $uid
     * @param string $NewPassword
     * @return boolean
     */
    public static function changePassword($uid, $NewPassword)
    {
        $salt = Random::alnum(6);
        return self::where('id', $uid)->update([
            'salt' => $salt, 
            'password' => self::encryptPassword($NewPassword, $salt)
        ]);
    }

    // 密码加密
    public static function encryptPassword($password, $salt = '', $encrypt = 'md5')
    {
        return $encrypt($encrypt($password) . $salt);
    }

}