<?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\AdvertModel;
use App\Services\BaseService;

/**
 * 用户挂单广告-服务类
 * Class AdvertService
 * @package App\Services\Common
 */
class AdvertService extends BaseService
{
    // 静态对象
    protected static $instance = null;

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

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