add:教师端新增删除课程，增加并更换footer-brief模板

Html/apps/static/css/teacherboard.css

@@ -60,6 +60,7 @@
     border-radius: 8px;
     box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
     cursor: pointer;
+    position: relative; /* 添加相对定位 */
 }
 
 .course-image {
@@ -81,6 +82,27 @@
 .course-description {
     font-size: 14px;
     color: #555;
+    margin-bottom: 10px;
+    display: -webkit-box; /* 使用-webkit-box实现文本截断 */
+    -webkit-line-clamp: 3; /* 限制显示3行 */
+    -webkit-box-orient: vertical; /* 垂直排列 */
+    overflow: hidden; /* 隐藏溢出内容 */
+    text-overflow: ellipsis; /* 用省略号表示截断 */
+}
+
+/* 课程日期信息 */
+.course-date {
+    position: absolute; /* 绝对定位到底部 */
+    bottom: 10px; /* 距离底部10px */
+    left: 0; /* 左对齐 */
+    right: 0; /* 右对齐 */
+    padding: 10px; /* 内边距 */
+    background-color: white; /* 白色背景 */
+    border-radius: 5px; /* 圆角 */
+    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); /* 阴影 */
+    font-size: 12px; /* 字体大小 */
+    color: #666; /* 字体颜色 */
+    line-height: 1.5; /* 行高 */
 }
 
 /* 课程目录弹出框 */
@@ -159,11 +181,14 @@
 /* 浮窗内容 */
 .modal-content {
     background-color: #fff;
-    margin: 15% auto;
+    margin: 10% auto; /* 修改为10%以缩小顶部距离 */
     padding: 20px;
     border-radius: 10px;
-    width: 40%;
-    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
+    width: 80%; /* 修改为80%以适应小屏幕 */
+    max-width: 600px; /* 设置最大宽度 */
+    box-shadow: 0 4px 8px rgba(0, 0, 0, 0 1);
+    overflow-y: auto; /* 添加垂直滚动条 */
+    max-height: 80vh; /* 设置最大高度 */
 }
 
 /* 按钮样式 */
@@ -205,7 +230,34 @@ label {
     margin-top: 20px; /* 上方间距 */
 }
 
+/* 选择课程或新建课程的下拉框 */
+.course-selection-container {
+    margin: 10px 0;
+    font-size: 16px;
+}
 
+#course-selection {
+    width: 100%; /* 占满一行 */
+    padding: 12px; /* 增加内边距 */
+    font-size: 16px; /* 调整字体大小 */
+    margin: 10px 0; /* 上下留间距 */
+    border: 2px solid #ccc; /* 边框 */
+    border-radius: 8px; /* 圆角边框 */
+    background-color: #f9f9f9; /* 背景色 */
+    transition: border 0.3s ease, box-shadow 0.3s ease; /* 添加过渡效果 */
+}
+
+/* 鼠标悬停时下拉框的效果 */
+#course-selection:hover {
+    border-color: #4CAF50; /* 悬停时的边框颜色 */
+    box-shadow: 0 0 10px rgba(76, 175, 80, 0.5); /* 悬停时的阴影效果 */
+}
+
+/* 下拉框选中项的样式 */
+#course-selection option {
+    padding: 10px;
+    font-size: 16px;
+}
 
 /* 添加课程按钮样式 */
 .add-course-button {
@@ -433,6 +485,20 @@ label[for="course-description"] {
     cursor: pointer;
 }
 
+.delete-course-btn {
+    background-color: #e74c3c;
+    color: white;
+    padding: 10px;
+    border-radius: 5px;
+    cursor: pointer;
+    width: 100%;
+    margin-top: 10px;
+}
+
+.delete-course-btn:hover {
+    background-color: #c0392b;
+}
+
 /* 编辑弹窗 */
 .edit-modal {
     display: none;

Html/apps/static/js/teacherboard.js

@@ -292,13 +292,50 @@ function closeAddCourseModal() {
     document.getElementById('add-course-modal').style.display = 'none';
 }
 
+// 显示删除课程确认弹窗
+function showDeleteCourseConfirmation() {
+    if (!material_id) {
+        alert('无法删除课程：未找到课程ID');
+        return;
+    }
+    
+    if (confirm('确定要删除这个课程吗？此操作无法撤销！')) {
+        deleteCourse(material_id);
+    }
+}
+
+// 删除课程
+function deleteCourse(courseId) {
+    fetch(`/materials/${courseId}`, {
+        method: 'DELETE',
+        headers: {
+            'Content-Type': 'application/json'
+        }
+    })
+    .then(response => response.json())
+    .then(data => {
+        if (data.message) {
+            alert(data.message);
+            if (data.success) {
+                // 关闭侧边栏并刷新页面
+                closeCourseDetails();
+                location.reload();
+            }
+        }
+    })
+    .catch(error => {
+        console.error('删除课程时出错:', error);
+        alert('删除课程失败，请稍后再试！');
+    });
+}
+
 function onTeacherboardPageLoad(){
 // 提交表单处理
 document.getElementById('add-course-form').addEventListener('submit', function(event) {
     event.preventDefault();
 
     const courseName = document.getElementById('course-name').value;
-    const courseSelection = document.getElementById('course-selection').value;
+    const courseSelection = document.getElementById('course-selection').value; // 获取选择值
     const coverImage = document.getElementById('cover-preview').src;
     const courseDescription = document.getElementById('course-description').value;
     // 构建发送的数据
@@ -312,7 +349,7 @@ document.getElementById('add-course-form').addEventListener('submit', function(e
     // 如果选择了已有课程，可以通过 courseSelection 传递课程ID（根据需要修改）
     if (courseSelection !== 'new') {
         // 如果是修改已有课程，设置相关的章节信息或其他数据
-        data.chapters = ["Chapter 1", "Chapter 2"]; // 示例章节信息
+        data.chapters = ["Chapter 1", "Chapter 2"];
     }
 
     // 发送 POST 请求到 /create_material

Html/apps/templates/course.html

@@ -46,7 +46,7 @@
             </div>
         </div>
     </div>
-         {% include 'foot.html' %}
+         {% include 'footer-brief.html' %}
 </body>
 <script>
     var course_id = "{{course_id}}";

Html/apps/templates/dashboard.html

@@ -13,7 +13,6 @@
 </head>
 <body>
     {% include 'navbar.html' %}  <!-- 引入navbar.html -->
-    {% include 'learning-path.html' %} <!-- 引入learning-path.html -->
             <section class="search-section">
             <div class="container">
                 <div class="row justify-content-center">
@@ -81,7 +80,7 @@
         </div>
     </div>
 
-     {% include 'foot.html' %}
+     {% include 'footer-brief.html' %}
 
     <script src="/static/js/dashboard.js"></script>
     <script>

Html/apps/templates/footer-brief.html

@@ -0,0 +1,11 @@
+<link rel="stylesheet" href="/static/css/footer.css">
+<footer class="hs-footer">
+  <div class="footer-main">
+
+  <div class="footer-bottom">
+    <div class="footer-bottom-right">
+      <span>© 2025 华实学伴. 保留所有权利</span>
+      <a href="https://beian.miit.gov.cn" target="_blank">沪ICP备2025142149号</a>
+    </div>
+  </div>
+</footer>

Html/apps/templates/index.html

@@ -80,7 +80,7 @@
     </main>
 
 
-  {% include 'foot.html' %}
+  {% include 'footer-brief.html' %}
 </body>
 <script>
     window.appData = {

Html/apps/templates/teacherboard.html

@@ -65,7 +65,7 @@
             </div>
         </ul>
         <button class="add-chapter-btn" onclick="showInputForNewChapter()">新增章节</button>
-        
+        <button class="delete-course-btn" onclick="showDeleteCourseConfirmation()">删除课程</button>
     </div>
 
     <!-- 编辑章节或课时弹窗 -->
@@ -90,9 +90,9 @@
             <div class="cover-image-container">
                 <div id="cover-image" class="cover-image-placeholder">
                     <span class="plus-sign">+</span>
-                    <input type="file" id="cover-image-input" style="display: none;" accept="image/*" />
+                    <input type="file" id="cover-image-input" style="display: none;" accept="image/*" /> 
                 </div>
-                <img id="cover-preview" src="" alt="封面预览" style="display: none;" />
+                <img id="cover-preview" src="" alt="封面预览" style="display: none;" /> 
             </div>
             
             <form id="add-course-form">
@@ -100,8 +100,8 @@
                 <label for="course-selection">从课程创建或新建课程：</label>
                 <select id="course-selection">
                     <option value="new">新建课程</option>
-                    {% for course in courses %}
-                        <option value="{{ course.id }}">{{ course.name }}</option>
+                    {% for course in materials %}
+                        <option value="{{ course._id }}">{{ course.name }}</option>
                     {% endfor %}
                 </select>
                 <br><br>
@@ -121,6 +121,6 @@
     <script src="/static/js/course_current.js"></script>
     <script src="/static/js/teacherboard.js"></script>
     <script src="/static/js/teacher_course_setting.js"></script>
-     {% include 'foot.html' %}
+     {% include 'footer-brief.html' %}
 </body>
 </html>

Html/apps/views/material.py

@@ -1,4 +1,5 @@
 from flask import Blueprint, request, jsonify, current_app, session, render_template, session
+from bson import ObjectId
 from ..services.course_service import create_material, update_material, get_materials_by_teacher, load_material, get_materials_by_teacher_dict, add_material_chapter, add_material_chapter_lesson, delete_material_chapter_lesson, reorder_material_structure, rename_material_structure
 from ..auth.decorators import require_role
 from ..services.cos_service import upload_file
@@ -37,24 +38,60 @@ def create_new_material():
     material_id = create_material(teacher_id, material_name, description, chapters, image_url)
     return jsonify({"message": "教材创建成功", "material_id": material_id}), 201
 
-@bp.route('/materials/<material_id>', methods=['GET'])
+@bp.route('/materials/<material_id>', methods=['GET', 'PUT', 'DELETE'])
 @require_role(roles="teacher")
-def get_material(material_id):
-    if material_id is None:
-        return jsonify({"message": "教材名称不能为空"}), 400
-    material = load_material(material_id)
-    print(material)
-    return jsonify( material.model_dump()), 200
+def handle_material(material_id):
 
-
-@bp.route('/materials/<material_id>', methods=['PUT'])
-@require_role(roles="teacher")
-def update_existing_material(material_id):
-    data = request.get_json()
-    chapters = data.get('chapters')
-    if update_material(material_id, chapters):
-        return jsonify({"message": "教材更新成功"}), 200
-    return jsonify({"message": "教材未找到"}), 404
+    if request.method == 'GET':
+        if material_id is None:
+            return jsonify({"message": "教材名称不能为空"}), 400
+        material = load_material(material_id)
+        print(material)
+        return jsonify(material.model_dump()), 200
+    
+    elif request.method == 'PUT':
+        data = request.get_json()
+        chapters = data.get('chapters')
+        if update_material(material_id, chapters):
+            return jsonify({"message": "教材更新成功"}), 200
+        else:
+            return jsonify({"message": "教材更新失败"}), 500
+    
+    elif request.method == 'DELETE':
+        # 获取当前教师信息
+        teacher_uuid = session.get("user_uuid")
+        teacher_id = current_app.extensions["uuid2username"][teacher_uuid]
+        
+        # 检查材料是否存在，并且是否为当前教师创建
+        mongo = current_app.extensions["mongo"]
+        print(f"尝试删除课程ID: {material_id}, 当前教师ID: {teacher_id}")
+        try:
+            material = mongo.db.materials.find_one({'_id': ObjectId(material_id)})
+            print(f"找到的材料: {material}")
+            
+            if not material:
+                return jsonify({"message": "课程不存在", "success": False}), 404
+            
+            # 验证是否为当前教师创建的课程
+            if material.get('teacher_id') != teacher_id:
+                return jsonify({"message": "权限不足，无法删除他人课程", "success": False}), 403
+                
+        except Exception as e:
+            print(f"查询材料时出错: {e}")
+            return jsonify({"message": f"查询课程时出错: {str(e)}", "success": False}), 500
+        
+        # 执行删除操作
+        try:
+            result = mongo.db.materials.delete_one({'_id': ObjectId(material_id), 'teacher_id': teacher_id})
+            print(f"删除操作结果: {result.deleted_count}")
+        except Exception as e:
+            print(f"删除材料时出错: {e}")
+            return jsonify({"message": f"删除课程时出错: {str(e)}", "success": False}), 500
+        
+        if result.deleted_count > 0:
+            return jsonify({"message": "课程删除成功", "success": True}), 200
+        else:
+            return jsonify({"message": "删除失败", "success": False}), 500
 
 @bp.route('/materials/addchapter/<material_id>', methods=['POST'])
 @require_role(roles="teacher")