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 = $this->order(['course_id' => 'desc'])->paginate($pageSize);
        } else {
            $list = $this->where('course_category_id',$courseCategoryId)
                         ->order(['course_id' => 'desc'])->paginate($pageSize);
        }
        
        return $list;    
            
    }

    public function list(array $param = []): \think\Paginator
    {   
        $pageSize = isset($param['pageSize']) && !empty($param['pageSize']) ? (int)$param['pageSize'] : 15;
        // 检索查询条件
        $filter = $this->getFilter($param);
        $list = $this->where($filter)
                    ->order(['sort' => 'asc','create_time' => 'desc'])
                    ->paginate($pageSize);
        return $list;
    }


      /**
     * 获取查询条件
     * @param array $param
     * @return array
     */
    private function getFilter(array $params= []): array
    {
        // 检索查询条件
        $filter = [];
        !empty($params['search']) && $filter[] = ['course_name|course_subheading', 'like', "%{$params['search']}%"];
        isset($params['courseCategory']) && $filter[] = ['course_category_id', 'in', explode(",", $params['courseCategory'])];
        return $filter;
    }
}