重构第一版：重新验证2.0推荐写法

model/order.py

@@ -1,5 +1,5 @@
 from pydantic import BaseModel
-from sqlalchemy.orm import declarative_base,sessionmaker
+from sqlalchemy.orm import declarative_base,sessionmaker,Session
 from sqlalchemy import Column, Integer,String,DATETIME,create_engine
 from datetime import datetime
 
@@ -8,33 +8,56 @@ engine = create_engine(db_url)
 
 
 def get_session():
-    Session = sessionmaker(bind=engine
-                           , autoflush=False
-                           , autocommit=False
-                           )
-    yield Session()
+    # Session = sessionmaker(bind=engine
+    #                        , autoflush=False
+    #                        , autocommit=False
+    #                        )
+
+    # session = Session(engine)
+    # try:
+    #     yield session
+    # finally:
+    #     session.close()
+
+    with Session()  as session:
+        yield session
+
+    # with Session(engine)  as session:
+    #     yield session
 
 Base = declarative_base()  # 执行函数，返回一个基类
-class Order(Base):   # python里的表名字
-    __tablename__ = 'order_info_detail'  # 实际数据库的表名字
-    id = Column( Integer  # 声明字段的数据类型
-                 , primary_key=True  # 声明是主键
-                 , autoincrement=True # 声明是自增主键
-                 , comment='订单编号，自增主键'  # 注释
-                 )
+
+from model.template import Template
+
+class Order(Base,Template):   # python里的表名字
+    __tablename__ = 'order_info_bool_tinyint'  # 实际数据库的表名字
     title = Column( String(50)  # 对应数据库的varchar类型
                     ,nullable=False  # 不允许为null
                     )
     userid = Column( Integer
                      # ,ForeignKey('user_info_detail.id')
                      ,nullable=False )  # 外键约束
-    create_date = Column(DATETIME
-                         , default=datetime.now  # 默认值是当前时间
-                         )
-    update_date = Column(DATETIME
-                         , default=datetime.now  # 首次创建的时间跟更新时间一致
-                         , onupdate=datetime.now
-                         )
+
+# class Order(Base):   # python里的表名字
+#     __tablename__ = 'order_info_detail'  # 实际数据库的表名字
+#     id = Column( Integer  # 声明字段的数据类型
+#                  , primary_key=True  # 声明是主键
+#                  , autoincrement=True # 声明是自增主键
+#                  , comment='订单编号，自增主键'  # 注释
+#                  )
+#     title = Column( String(50)  # 对应数据库的varchar类型
+#                     ,nullable=False  # 不允许为null
+#                     )
+#     userid = Column( Integer
+#                      # ,ForeignKey('user_info_detail.id')
+#                      ,nullable=False )  # 外键约束
+#     create_date = Column(DATETIME
+#                          , default=datetime.now  # 默认值是当前时间
+#                          )
+#     update_date = Column(DATETIME
+#                          , default=datetime.now  # 首次创建的时间跟更新时间一致
+#                          , onupdate=datetime.now
+#                          )
 
 # 定义创建订单的请求体模型
 class OrderRequest(BaseModel):
@@ -51,11 +74,7 @@ class OrderSchema(BaseModel):
     update_date:datetime
 
 class OrderResponse(BaseModel):
-    # id:int|None = None
-    # title:str|None = None
-    # userid:int|None =None
-    # create_date:datetime|None = datetime.now()
-    # update_date:datetime|None = datetime.now()
+
     status_code:str = 200
     detail:str = 'succeed!'
     total:int = 1