yanzong/app/admin/model/Course.php

<?php
// +----------------------------------------------------------------------
// | 萤火商城系统 [ 致力于通过产品和服务，帮助商家高效化开拓市场 ]
// +----------------------------------------------------------------------
// | Copyright (c) 2017~2023 https://www.yiovo.com All rights reserved.
// +----------------------------------------------------------------------
// | Licensed 这不是一个自由软件，不允许对程序代码以任何形式任何目的的再发行
// +----------------------------------------------------------------------
// | Author: 萤火科技 <admin@yiovo.com>
// +----------------------------------------------------------------------
declare (strict_types=1);

namespace app\admin\model;

use app\common\model\Course as CourseModel;

class Course extends CourseModel
{
    /**
     * 获取列表数据
     * @param bool $isRecycle
     * @return \think\Paginator
     * @throws \think\db\exception\DbException
     */
    public function getList(int $courseCategoryId, int $pageSize ): \think\Paginator
    {   
        if(empty($courseCategoryId)){
           $list = $this->where('status',1)->order(['sort' => 'asc', 'create_time' => 'desc'])->paginate($pageSize);
        } else {
            $list = $this->where('course_category_id',$courseCategoryId)
                         ->where('status',1)->order(['sort' => 'asc', 'create_time' => 'desc'])->paginate($pageSize);
        }
        
        return $list;    
            
    }
}