from sqlalchemy import create_engine from sqlalchemy.orm import sessionmaker engine = create_engine('sqlite:///example.db') Session = sessionmaker(bind=engine) session = Session() new_product = Product(name='New Product', price=10) session.add(new_product) session.flush()
from sqlalchemy import create_engine from sqlalchemy.orm import sessionmaker engine = create_engine('sqlite:///example.db') Session = sessionmaker(bind=engine) session = Session() product = session.query(Product).filter_by(id=1).first() product.price = 20 session.flush()
from sqlalchemy import create_engine from sqlalchemy.orm import sessionmaker engine = create_engine('sqlite:///example.db') Session = sessionmaker(bind=engine) session = Session() product = session.query(Product).filter_by(id=1).first() session.delete(product) session.flush()In this example, we retrieve an existing product object from the session and then delete it using the delete method. The flush method is called to synchronize the changes to the database. The sqlalchemy.orm.session Session flush method is part of the sqlalchemy package library.