Personal-Collections-Website/APP/view/database.py

from sqlalchemy import create_engine
from sqlalchemy.orm import scoped_session, sessionmaker
from sqlalchemy.ext.declarative import declarative_base

engine = create_engine('mysql+pymysql://root:root@mysql:3306/cp', convert_unicode=True)
db_session = scoped_session(sessionmaker(autocommit=False,
                                         autoflush=False,
                                         bind=engine))
Base = declarative_base()
Base.query = db_session.query_property()


def init_db():
    # 在这里导入定义模型所需要的所有模块，这样它们就会正确的注册在
    # 元数据上。否则你就必须在调用 init_db() 之前导入它们。
    import APP.view.model
    #file=open('./1.txt','w')
    #print('aaaa',file=file)
    Base.metadata.drop_all(bind=engine)
    Base.metadata.create_all(bind=engine)
    #file.close()