NN2025081602/app/Services/Exam/SubjectService.php

<?php
namespace App\Services\Exam;

use App\Models\ExamSubjectsModel;
use App\Services\BaseService;

/**
 * 课程管理-服务类
 * Class SubjectService
 */
class SubjectService extends BaseService
{
    protected static $instance = null;
    protected $model = null;

    public function __construct()
    {
        $this->model = new ExamSubjectsModel();
    }

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

    /**
     * 获取课程列表
     */
    public function customList($param, $pageSize = 15)
    {
        $query = $this->model->where('mark', operator: 1);

        if (!empty($param['type'])) {
            $query->where('type', $param['type']);
        }

        if (!empty($param['keyword'])) {
            $query->where(function ($q) use ($param) {
                $q->where('id', $param['keyword'])
                    ->orWhere('subject_name', 'like', "%{$param['keyword']}%");
            });
        }

        $list = $query->orderBy('sort', 'desc')->paginate($pageSize > 0 ? $pageSize : 9999999);
        $list = $list ? $list->toArray() : [];
        return [
            'pageSize' => $pageSize,
            'total' => isset($list['total']) ? $list['total'] : 0,
            'list' => isset($list['data']) ? $list['data'] : []
        ];
        return message("操作成功", true, $list);
    }

    /**
     * 获取课程详情
     */
    public function getInfo($id)
    {
        $data = $this->model->findOrFail($id);
        return message("操作成功", true, $data);
    }

    /**
     * 删除课程（逻辑删除）
     */
    public function remove($id)
    {
        $subject = $this->model->findOrFail($id);
        $subject->mark = 0;
        $subject->save();
        return message("删除成功", true);
    }

    /**
     * 启用/禁用课程
     */
    public function changeStatus($id, $status)
    {
        $subject = $this->model->findOrFail($id);
        $subject->status = $status;
        $subject->save();
        return message("状态更新成功", true, $subject);
    }

    /**
     * 用户选项
     * @return array
     */
    public function options()
    {
        // 获取参数
        $param = request()->all();
        // 用户ID
        $keyword = getter($param, "keyword");
        $sceneType = getter($param, "scene_type");
        $type = getter($param, "type");
        $datas = $this->model
            ->where('status', '=', 1)
            ->where('mark', '=', 1)
            ->where(function ($query) use ($keyword, $sceneType, $type) {
                if ($keyword) {
                    $query->where('subject_name', 'like', "%{$keyword}%");
                }
                if ($type) {
                    $query->where('type', '=', $type);
                }
            })
            ->select(['subject_name', 'id'])
            ->get();

        return $datas ? $datas->toArray() : [];
    }
}