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祀梦
409
frontend/js/teacher.js
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409
frontend/js/teacher.js
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class TeacherDashboard {
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constructor() {
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// 动态设置API基础URL，支持file:///协议和localhost:3000访问
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this.apiBase = window.location.protocol === 'file:' ? 'http://localhost:3000/api' : '/api';
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this.currentUser = null;
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this.courses = [];
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this.grades = [];
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this.init();
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}
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async init() {
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// 检查登录状态
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if (!await this.checkAuth()) {
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window.location.href = '/frontend/html/login.html';
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return;
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}
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// 加载用户信息
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await this.loadUserInfo();
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// 加载课程数据
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await this.loadCourses();
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// 加载成绩数据
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await this.loadGrades();
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// 绑定事件
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this.bindEvents();
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// 更新界面
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this.updateUI();
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}
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async checkAuth() {
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try {
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const response = await fetch(`${this.apiBase}/auth/check`, {
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credentials: 'include'
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});
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if (!response.ok) {
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return false;
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}
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const data = await response.json();
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return data.success && data.user.role === 'teacher';
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} catch (error) {
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console.error('认证检查失败:', error);
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return false;
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}
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}
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async loadUserInfo() {
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try {
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const response = await fetch(`${this.apiBase}/auth/me`, {
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credentials: 'include'
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});
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if (response.ok) {
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const data = await response.json();
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if (data.success) {
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this.currentUser = data.user;
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}
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}
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} catch (error) {
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console.error('加载用户信息失败:', error);
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}
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}
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async loadCourses() {
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try {
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const response = await fetch(`${this.apiBase}/teacher/courses`, {
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credentials: 'include'
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});
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if (response.ok) {
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const data = await response.json();
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if (data.success) {
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this.courses = data.courses;
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this.populateCourseSelectors();
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}
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}
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} catch (error) {
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console.error('加载课程失败:', error);
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this.showNotification('加载课程失败', 'error');
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}
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}
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async loadGrades(filters = {}) {
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try {
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const queryParams = new URLSearchParams(filters).toString();
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const url = `${this.apiBase}/teacher/grades${queryParams ? '?' + queryParams : ''}`;
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const response = await fetch(url, {
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credentials: 'include'
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});
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if (response.ok) {
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const data = await response.json();
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if (data.success) {
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this.grades = data.grades;
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this.renderGradesTable();
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}
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}
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} catch (error) {
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console.error('加载成绩失败:', error);
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this.showNotification('加载成绩失败', 'error');
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}
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}
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populateCourseSelectors() {
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// 填充课程选择器
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const courseSelectors = document.querySelectorAll('.course-selector');
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courseSelectors.forEach(select => {
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select.innerHTML = '<option value="">请选择课程</option>';
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this.courses.forEach(course => {
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const option = document.createElement('option');
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option.value = course.id;
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option.textContent = `${course.course_code} - ${course.course_name}`;
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select.appendChild(option);
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});
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});
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}
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renderGradesTable() {
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const tableBody = document.getElementById('gradesTableBody');
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if (!tableBody) return;
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if (this.grades.length === 0) {
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tableBody.innerHTML = `
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<tr>
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<td colspan="9" class="text-center">
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<div class="no-data">
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<i class="fas fa-info-circle"></i>
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<p>暂无成绩数据</p>
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</div>
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</td>
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</tr>
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`;
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return;
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}
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tableBody.innerHTML = this.grades.map(grade => {
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const gradeClass = this.getGradeClass(grade.score);
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return `
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<tr>
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<td><input type="checkbox" class="grade-checkbox" data-id="${grade.id}"></td>
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<td>${grade.student_id}</td>
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<td>${grade.full_name}</td>
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<td>${grade.class_name}</td>
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<td>${grade.course_code}</td>
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<td>${grade.course_name}</td>
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<td class="grade-cell ${gradeClass}">
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<span class="grade-score">${grade.score}</span>
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<span class="grade-level">${grade.grade_level}</span>
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</td>
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<td>${grade.exam_date ? new Date(grade.exam_date).toLocaleDateString() : '未设置'}</td>
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<td>
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<div class="action-buttons">
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<button class="btn-edit" data-id="${grade.id}">
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<i class="fas fa-edit"></i> 编辑
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</button>
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<button class="btn-delete" data-id="${grade.id}">
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<i class="fas fa-trash"></i> 删除
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</button>
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</div>
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</td>
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</tr>
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`;
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}).join('');
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// 更新统计信息
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this.updateStats();
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}
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getGradeClass(score) {
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if (score >= 90) return 'grade-excellent';
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if (score >= 80) return 'grade-good';
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if (score >= 70) return 'grade-medium';
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if (score >= 60) return 'grade-pass';
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return 'grade-fail';
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}
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updateStats() {
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if (this.grades.length === 0) return;
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const totalStudents = new Set(this.grades.map(g => g.student_id)).size;
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const avgScore = this.grades.reduce((sum, g) => sum + g.score, 0) / this.grades.length;
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const passRate = (this.grades.filter(g => g.score >= 60).length / this.grades.length * 100).toFixed(1);
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document.getElementById('totalStudents').textContent = totalStudents;
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document.getElementById('avgScore').textContent = avgScore.toFixed(1);
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document.getElementById('passRate').textContent = `${passRate}%`;
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}
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bindEvents() {
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// 搜索按钮
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document.getElementById('searchBtn')?.addEventListener('click', () => {
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this.handleSearch();
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});
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// 重置按钮
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document.getElementById('resetBtn')?.addEventListener('click', () => {
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this.resetFilters();
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});
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// 导出按钮
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document.getElementById('exportBtn')?.addEventListener('click', () => {
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this.exportGrades();
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});
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// 批量删除按钮
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document.getElementById('batchDeleteBtn')?.addEventListener('click', () => {
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this.batchDeleteGrades();
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});
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// 表格操作按钮事件委托
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document.addEventListener('click', (e) => {
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if (e.target.closest('.btn-edit')) {
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const gradeId = e.target.closest('.btn-edit').dataset.id;
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this.editGrade(gradeId);
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}
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if (e.target.closest('.btn-delete')) {
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const gradeId = e.target.closest('.btn-delete').dataset.id;
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this.deleteGrade(gradeId);
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}
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});
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// 退出登录
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document.getElementById('logoutBtn')?.addEventListener('click', () => {
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this.handleLogout();
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});
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}
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handleSearch() {
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const className = document.getElementById('classFilter')?.value || '';
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const courseId = document.getElementById('courseFilter')?.value || '';
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this.loadGrades({ class_name: className, course_id: courseId });
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}
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resetFilters() {
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document.getElementById('classFilter').value = '';
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document.getElementById('courseFilter').value = '';
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this.loadGrades();
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}
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async exportGrades() {
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try {
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const response = await fetch(`${this.apiBase}/teacher/grades/export`, {
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credentials: 'include'
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});
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if (response.ok) {
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const blob = await response.blob();
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const url = window.URL.createObjectURL(blob);
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const a = document.createElement('a');
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a.href = url;
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a.download = `成绩报表_${new Date().toISOString().split('T')[0]}.xlsx`;
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document.body.appendChild(a);
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a.click();
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document.body.removeChild(a);
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window.URL.revokeObjectURL(url);
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}
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} catch (error) {
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console.error('导出失败:', error);
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this.showNotification('导出失败', 'error');
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}
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}
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async batchDeleteGrades() {
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const checkboxes = document.querySelectorAll('.grade-checkbox:checked');
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if (checkboxes.length === 0) {
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this.showNotification('请选择要删除的成绩', 'warning');
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return;
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}
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if (!confirm(`确定要删除选中的 ${checkboxes.length} 条成绩记录吗？`)) {
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return;
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}
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const gradeIds = Array.from(checkboxes).map(cb => cb.dataset.id);
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try {
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const response = await fetch(`${this.apiBase}/teacher/grades/batch`, {
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method: 'DELETE',
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headers: { 'Content-Type': 'application/json' },
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credentials: 'include',
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body: JSON.stringify({ gradeIds })
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});
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const data = await response.json();
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if (data.success) {
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this.showNotification(`成功删除 ${gradeIds.length} 条成绩记录`, 'success');
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await this.loadGrades();
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} else {
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this.showNotification(data.message || '删除失败', 'error');
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}
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} catch (error) {
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console.error('批量删除失败:', error);
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this.showNotification('批量删除失败', 'error');
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}
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}
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async editGrade(gradeId) {
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const grade = this.grades.find(g => g.id == gradeId);
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if (!grade) return;
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// 这里可以打开编辑模态框
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// 暂时使用简单提示框
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const newScore = prompt('请输入新的分数:', grade.score);
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if (newScore === null) return;
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const numericScore = parseFloat(newScore);
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if (isNaN(numericScore) || numericScore < 0 || numericScore > 100) {
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this.showNotification('请输入0-100之间的有效分数', 'error');
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return;
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}
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try {
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const response = await fetch(`${this.apiBase}/teacher/grades/${gradeId}`, {
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method: 'PUT',
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headers: { 'Content-Type': 'application/json' },
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credentials: 'include',
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body: JSON.stringify({
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score: numericScore,
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examDate: grade.exam_date,
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remark: grade.remark
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})
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});
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const data = await response.json();
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if (data.success) {
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this.showNotification('成绩更新成功', 'success');
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await this.loadGrades();
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} else {
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this.showNotification(data.message || '更新失败', 'error');
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}
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} catch (error) {
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console.error('更新成绩失败:', error);
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this.showNotification('更新成绩失败', 'error');
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}
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}
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async deleteGrade(gradeId) {
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if (!confirm('确定要删除这条成绩记录吗？')) {
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return;
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}
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try {
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const response = await fetch(`${this.apiBase}/teacher/grades/${gradeId}`, {
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method: 'DELETE',
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credentials: 'include'
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});
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const data = await response.json();
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if (data.success) {
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this.showNotification('成绩删除成功', 'success');
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await this.loadGrades();
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} else {
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this.showNotification(data.message || '删除失败', 'error');
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}
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} catch (error) {
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console.error('删除成绩失败:', error);
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this.showNotification('删除成绩失败', 'error');
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}
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}
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async handleLogout() {
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try {
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const response = await fetch(`${this.apiBase}/auth/logout`, {
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method: 'POST',
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credentials: 'include'
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});
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if (response.ok) {
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window.location.href = '/frontend/html/login.html';
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}
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} catch (error) {
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console.error('退出登录失败:', error);
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}
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}
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updateUI() {
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// 更新用户信息
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if (this.currentUser) {
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const userInfoElements = document.querySelectorAll('.user-info');
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userInfoElements.forEach(el => {
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el.textContent = `${this.currentUser.full_name} (${this.currentUser.role})`;
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});
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}
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}
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showNotification(message, type = 'info') {
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// 使用AuthManager的通知系统或简单alert
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if (typeof AuthManager !== 'undefined' && AuthManager.showNotification) {
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AuthManager.showNotification(message, type);
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} else {
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alert(`${type}: ${message}`);
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}
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}
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}
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// 页面加载完成后初始化
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document.addEventListener('DOMContentLoaded', () => {
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if (window.location.pathname.includes('/teacher/')) {
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new TeacherDashboard();
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}
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});
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Reference in New Issue
Block a user