mirror of
https://github.com/grillazz/fastapi-sqlalchemy-asyncpg.git
synced 2025-08-26 16:40:40 +03:00
82 lines
2.3 KiB
Python
82 lines
2.3 KiB
Python
from typing import Any
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from asyncpg import UniqueViolationError
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from fastapi import HTTPException, status
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from rotoger import AppStructLogger
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from sqlalchemy.exc import IntegrityError, SQLAlchemyError
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from sqlalchemy.ext.asyncio import AsyncSession
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from sqlalchemy.orm import DeclarativeBase, declared_attr
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logger = AppStructLogger().get_logger()
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class Base(DeclarativeBase):
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id: Any
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__name__: str
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# Generate __tablename__ automatically
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@declared_attr
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def __tablename__(self) -> str:
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return self.__name__.lower()
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async def save(self, db_session: AsyncSession):
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"""
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:param db_session:
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:return:
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"""
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try:
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db_session.add(self)
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return await db_session.commit()
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except SQLAlchemyError as ex:
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await logger.aerror(f"Error inserting instance of {self}: {repr(ex)}")
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raise HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_ENTITY, detail=repr(ex)
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) from ex
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async def delete(self, db_session: AsyncSession):
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"""
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:param db_session:
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:return:
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"""
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try:
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await db_session.delete(self)
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await db_session.commit()
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return True
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except SQLAlchemyError as ex:
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raise HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_ENTITY, detail=repr(ex)
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) from ex
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async def update(self, db: AsyncSession, **kwargs):
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"""
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:param db:
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:param kwargs
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:return:
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"""
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try:
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for k, v in kwargs.items():
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setattr(self, k, v)
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return await db.commit()
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except SQLAlchemyError as ex:
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raise HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_ENTITY, detail=repr(ex)
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) from ex
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async def save_or_update(self, db: AsyncSession):
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try:
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db.add(self)
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return await db.commit()
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except IntegrityError as exception:
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if isinstance(exception.orig, UniqueViolationError):
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return await db.merge(self)
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else:
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raise HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
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detail=repr(exception),
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) from exception
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finally:
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await db.close()
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