54 lines
1.7 KiB
JavaScript
54 lines
1.7 KiB
JavaScript
function show_books(courses_data, user_selected_courses) {
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console.log(courses_data)
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console.log(user_selected_courses)
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}
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function show_course_details(course_id) {
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window.location.href = '/course/' + course_id
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}
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function on_click_select_course(event) {
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event.stopPropagation(); // 阻止事件冒泡
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const button = event.currentTarget;
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const courseId = button.getAttribute('data-course-id');
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if (!courseId) { alert('缺少课程ID'); return; }
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if (button.classList.contains("selected-button")) { alert('课程已选择'); return; }
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if (button.disabled) { return; }
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button.disabled = true;
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fetch(`/select_course`, {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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},
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body: JSON.stringify({ course_id: courseId })
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})
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.then(async (response) => {
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let data = null;
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try {
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data = await response.json();
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} catch (_) {
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}
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if (!response.ok) {
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throw new Error(data?.message || `请求失败(${response.status})`);
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}
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return data;
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})
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.then((data) => {
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if (!data?.success) {
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throw new Error(data?.message || '选择课程失败');
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}
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button.classList.remove('select-button');
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button.classList.add('selected-button');
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button.textContent = '已选课';
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alert('选择课程成功');
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})
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.catch(error => {
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console.error('Error:', error);
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alert(error?.message || '选择课程失败');
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button.disabled = false;
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});
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}
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document.addEventListener('DOMContentLoaded', function () {
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});
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