mirror of
https://github.com/fastapi/sqlmodel.git
synced 2025-10-31 10:06:57 +08:00
62 lines
1.6 KiB
Python
62 lines
1.6 KiB
Python
from typing import Optional
|
|
|
|
from pydantic import condecimal
|
|
from sqlmodel import Field, Session, SQLModel, create_engine, select
|
|
|
|
|
|
class Hero(SQLModel, table=True):
|
|
id: Optional[int] = Field(default=None, primary_key=True)
|
|
name: str = Field(index=True)
|
|
secret_name: str
|
|
age: Optional[int] = Field(default=None, index=True)
|
|
money: condecimal(max_digits=5, decimal_places=3) = Field(default=0)
|
|
|
|
|
|
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()
|