add:教师端新增删除课程，增加并更换footer-brief模板

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")