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from decimal import Decimal
from sqlmodel import Field, Session, SQLModel, create_engine, select
class Hero(SQLModel, table=True):
id: int | None = Field(default=None, primary_key=True)
name: str = Field(index=True)
secret_name: str
age: int | None = Field(default=None, index=True)
money: Decimal = Field(default=0, max_digits=5, decimal_places=3)
sqlite_file_name = "database.db"
sqlite_url = f"sqlite:///{sqlite_file_name}"
engine = create_engine(sqlite_url, echo=True)
def create_db_and_tables():
SQLModel.metadata.create_all(engine)
def create_heroes():
hero_1 = Hero(name="Deadpond", secret_name="Dive Wilson", money=1.1)
hero_2 = Hero(name="Spider-Boy", secret_name="Pedro Parqueador", money=0.001)
hero_3 = Hero(name="Rusty-Man", secret_name="Tommy Sharp", age=48, money=2.2)
with Session(engine) as session:
session.add(hero_1)
session.add(hero_2)
session.add(hero_3)
session.commit()
def select_heroes():
with Session(engine) as session:
statement = select(Hero).where(Hero.name == "Deadpond")
results = session.exec(statement)
hero_1 = results.one()
print("Hero 1:", hero_1)
statement = select(Hero).where(Hero.name == "Rusty-Man")
results = session.exec(statement)
hero_2 = results.one()
print("Hero 2:", hero_2)
total_money = hero_1.money + hero_2.money
print(f"Total money: {total_money}")
def main():
create_db_and_tables()
create_heroes()
select_heroes()
if __name__ == "__main__":
main()
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