NN2022060801/app/Services/Common/CoinLogService.php

<?php
// +----------------------------------------------------------------------
// | LARAVEL8.0 框架 [ LARAVEL ][ RXThinkCMF ]
// +----------------------------------------------------------------------
// | 版权所有 2017~2021 LARAVEL研发中心
// +----------------------------------------------------------------------
// | 官方网站: http://www.laravel.cn
// +----------------------------------------------------------------------
// | Author: laravel开发员 <laravel.qq.com>
// +----------------------------------------------------------------------

namespace App\Services\Common;

use App\Models\CoinLogModel;
use App\Services\BaseService;
use App\Services\RedisService;

/**
 * 币种明细（提币、存币）-服务类
 * Class CoinLogService
 * @package App\Services\Common
 */
class CoinLogService extends BaseService
{
    // 静态对象
    protected static $instance = null;

    /**
     * 构造函数
     * @since 2020/11/10
     * CoinLogService constructor.
     */
    public function __construct()
    {
        $this->model = new CoinLogModel();
    }

    /**
     * 静态入口
     * @return static|null
     */
    public static function make()
    {
        if (!self::$instance) {
            self::$instance = (new static());
        }
        return self::$instance;
    }

    /**
     * 验证是否存在
     * @param \App\Services\字段名 $field
     * @param \App\Services\字段值 $value
     * @param string $pk
     * @return mixed
     */
    public function checkExists($field, $value, $pk = 'id')
    {
        $cacheKey = "caches:coinLogs:exists:{$field}_{$value}";
        if($result = RedisService::get($cacheKey)){
            return $result;
        }

        $result = parent::checkExists($field, $value, $pk);
        if($result){
            RedisService::set($cacheKey, $result, rand(3,5));
        }

        return $result;
    }
}