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db_manager.py
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db_manager.py
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import os
from sqlalchemy import Column, Integer, String, create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
Base = declarative_base()
class User(Base):
__tablename__ = "user_data"
id = Column(Integer, primary_key=True, autoincrement=True)
user_id = Column(String(20))
password = Column(String(20))
picture_id = Column(Integer)
mileage = Column(Integer)
#PostgreSQLとの接続用
db_uri = os.environ['DATABASE_URL']
if db_uri.startswith("postgres://"):
db_uri = db_uri.replace("postgres://", "postgresql://", 1)
engine = create_engine(db_uri)
session_factory = sessionmaker(bind=engine)
session = session_factory()
Base.metadata.create_all(bind=engine)
def add_new_user(user_id, password, picture_id = 1, mileage = 0):
session.rollback()
new_user = User(
user_id = user_id,
password = password,
picture_id = picture_id,
mileage = mileage
)
session.add(new_user)
session.commit()
session.close()
return None
def is_exist(user_id, password):
result = session.query(User.user_id).filter(User.user_id == user_id, User.password == password).all()
session.close()
if result == []:
return False
else:
return True
def get_user(user_id):
result = session.query(User.user_id).filter(User.user_id == user_id).all()
session.close()
return result
def update_user(user_id, mileage):
user = session.query(User).filter(User.user_id == user_id).first()
user.mileage += int(mileage)
session.commit()
session.close()
def delete_user(user_id):
user = session.query(User).filter(User.user_id == user_id).first()
session.delete(user)
session.commit()
session.close()
def get_pic(user_id):
result = session.query(User.picture_id, User.mileage).filter(User.user_id == user_id).all()
session.close()
return result
if __name__ == "__main__":
print("session closed")