74 lines
3.1 KiB
Python
74 lines
3.1 KiB
Python
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from pydantic import BaseModel
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from sqlalchemy import create_engine, Column, Integer,String,DATETIME,DECIMAL
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from sqlalchemy.orm import declarative_base, sessionmaker
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from datetime import datetime
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from typing import Annotated
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from fastapi import Depends, FastAPI,APIRouter,Form,File,UploadFile
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from fastapi.security import OAuth2PasswordRequestForm
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route = APIRouter(prefix="/mysql",tags=["mysql"])
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db_url = "mysql+pymysql://geeker:geeker@localhost:3306/fastapi_tutor?charset=utf8mb4"
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engine = create_engine(db_url, pool_size= 50, echo=True)
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Session = sessionmaker( bind=engine
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,autoflush=False # 是否开启自动刷新python新增的数据到实际的数据库内存缓存中
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,autocommit = False # 不自动提交数据，这个是真正提交到数据库磁盘永久生效的 -> 2.0 不支持True自动提交
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)
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session = Session() # 实例化一个数据库操作会话
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Base = declarative_base() # 获取基类！
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class Order(Base): # python里的表名字
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__tablename__ = 'order_info_detail' # 实际数据库的表名字
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id = Column( Integer # 声明字段的数据类型
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, primary_key=True # 声明是主键
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, autoincrement=True # 声明是自增主键
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, comment='订单编号，自增主键' # 注释
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)
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title = Column( String(50) # 对应数据库的varchar类型
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,nullable=False # 不允许为null
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)
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price = Column(DECIMAL)
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userid = Column( Integer
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# ,ForeignKey('user_info_detail.id')
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,nullable=False ) # 外键约束
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create_date = Column(DATETIME
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, default=datetime.now # 默认值是当前时间
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)
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update_date = Column(DATETIME
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, default=datetime.now # 首次创建的时间跟更新时间一致
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, onupdate=datetime.now
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)
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class User(Base): # python里的表名字
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__tablename__ = 'user_info_detail' # 实际数据库的表名字
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id = Column( Integer # 声明字段的数据类型
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, primary_key=True # 声明是主键
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, autoincrement=True # 声明是自增主键
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, comment='用户编号，自增主键' # 注释
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)
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username = Column( String(50) # 对应数据库的varchar类型
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,nullable=False # 不允许为null
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,comment='用户名'
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)
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create_date = Column(DATETIME
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, default=datetime.now # 默认值是当前时间
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)
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update_date = Column(DATETIME
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, default=datetime.now # 首次创建的时间跟更新时间一致
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, onupdate=datetime.now
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)
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@route.get("/user")
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def user_detail_info():
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return session.query(User).all()
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@route.post("/user")
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def user_detail_info(username:str):
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session.add(User(username=username))
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return session.query(User).all()
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