添加chapter和lesson

Html/apps/extensions.py

@@ -5,8 +5,13 @@ from flask_cors import CORS
 from db.user_list import UserList
 from db.course_list import CourseList
 from .services.my_function import MyFunction
+from flask_pymongo import PyMongo
+from qcloud_cos import CosConfig
+from qcloud_cos import CosS3Client
+
+
+mongo = PyMongo()
 
-db = SQLAlchemy()
 
 socketio = SocketIO(cors_allowed_origins="*")   # 不直接传 app
 cors = CORS()
@@ -26,7 +31,6 @@ user_id2UserClass = {}
 from AlgoriAgent.projects.algoriAgent.agent_manager import AgentManager
 agent_manager = AgentManager()
 def init_extensions(app):
-    db.init_app(app)
     # 第三方
     socketio.init_app(
         app,
@@ -51,6 +55,18 @@ def init_extensions(app):
     app.extensions["user_id2UserClass"] = user_id2UserClass
     app.extensions["agent_manager"] = agent_manager
     app.extensions["my_function"] = MyFunction()
+
+    mongo.init_app(app,uri=app.config["MONGO_URI"])
+    app.extensions["mongo"] = mongo
+
+    cos_config = CosConfig(
+        Region=app.config["TENCENT_COS"]["region"],
+        SecretId=app.config["TENCENT_COS"]["secret_id"],
+        SecretKey=app.config["TENCENT_COS"]["secret_key"],
+    )
+    cos_client = CosS3Client(cos_config)
+    app.extensions["cos_client"] = cos_client
+
 def register_namespaces(app):
     """把所有 Socket.IO namespaces 注册到 socketio"""
     # 延迟导入以避免循环