我正在使用 Laravel 8，VueJS 和 Axios 来开发我的应用程序，但每次尝试从数据库中获取所有记录时，它都返回一个状态码为500的错误。即使使用 Postman/Insomnia 获取数据时没有错误。

我尝试清空获取数据的表，错误消失了，并返回状态码为200的空数据。

Store 模块：

import axios from 'axios'

export default {
    namespaced: true,
    state: {
        courses: [],
        teacher: '',
    },
    getters: {
        allCourses(state) {
            return state.courses
    },
},
actions: {
    async fetchAllCourses({ commit }) {
        const response = await axios.get('teacher/course-management/list')
        console.log(response.data.data)
        commit('SET_COURSES', response.data.data)
    }
},
mutations: {
    SET_COURSES(state, courses) {
        state.courses = courses
    }
}

控制器：

public function fetchAllCourses() {
    try {
        $courses = Course::all()->sortBy('id');

        $data = $courses->transform(function ($course) {
            // ! 获取教师ID
            $teacherId = $this->user->teacher->id;
            // ! 根据ID获取教师姓名
            $teacherName = $this->getTeacherName($teacherId);

            return [
                'id' => $course->id,
                'teacher_id' => $course->teacher_id,
                'teacher' => $teacherName,
                'section' => $course->section,
                'code' => $course->code,
                'status' => $course->status,
                'image' => $course->image,
            ];
        });

        return $this->success('请求成功', $data);
    } catch (\Exception $e) {
        return $this->error($e->getMessage(), $e->getCode());
    }   
}