2021-03-26 11:07:52 +01:00

24 lines
637 B
Python

from typing import Any
from sqlalchemy.exc import SQLAlchemyError
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy.ext.declarative import as_declarative, declared_attr
@as_declarative()
class Base:
id: Any
__name__: str
# Generate __tablename__ automatically
@declared_attr
def __tablename__(cls) -> str:
return cls.__name__.lower()
async def save(self, db_session: AsyncSession):
try:
db_session.add(self)
return await db_session.commit()
except SQLAlchemyError as ex:
print(f"Have to rollback, save failed: {ex}")
raise