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2026-02-15 17:02:40 +03:00
parent f79e4bcbb5
commit a042942446
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from sqlalchemy import delete
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker
from sqlalchemy.exc import InvalidRequestError
from sqlalchemy.pool import NullPool
import config
from utils import logger
DATABASE_URL = f"postgresql+asyncpg://{config.DB_USER}:{config.DB_PASSWORD}@{config.DB_HOST}:{config.DB_PORT}/{config.DB_NAME}"
engine = create_async_engine(DATABASE_URL, poolclass=NullPool)
SessionLocal = async_sessionmaker(engine)
Base = declarative_base()
class CRUD:
@staticmethod
async def create(db_data, refresh: bool = False):
try:
is_lst = isinstance(db_data, list)
async with SessionLocal() as db:
if is_lst:
logger.debug(f"Создаю {len(db_data)} записей")
try:
db.add_all(db_data)
except InvalidRequestError:
for data in db_data:
await db.merge(data)
else:
logger.debug("Создаю запись")
db.add(db_data)
await db.commit()
if refresh:
if is_lst:
logger.debug(f"Обновляю {len(db_data)} записей")
for data in db_data:
await db.refresh(data)
else:
logger.debug("Обновляю запись")
await db.refresh(db_data)
logger.debug("Запись создана")
return db_data if refresh else None
except Exception as e:
logger.error(f"Ошибка создания: {str(e)}", exc_info=True)
return None
@staticmethod
async def read(query, all: bool = False):
try:
async with SessionLocal() as db:
logger.debug(f"Чтение записей. Все: {all}")
results = await db.execute(query)
logger.debug(f"Чтение завершено")
return (
results.unique().scalars().all()
if all
else results.unique().scalars().first()
)
except Exception as e:
logger.error(f"Ошибка чтения: {str(e)}", exc_info=True)
return None
@staticmethod
async def delete(db_data) -> bool:
def itemdebug(instance):
from sqlalchemy import inspect
state = inspect(instance)
if state.identity is None:
pKey = None
pValue = None
else:
mapper = state.mapper
pKey = mapper.primary_key[0].name
pValue = getattr(instance, pKey)
return {"key": pKey, "value": pValue, "class": instance.__class__}
async def deleteFromDB(data, db):
itemData = itemdebug(data)
query = delete(itemData["class"]).where(
getattr(itemData["class"], itemData["key"]) == itemData["value"]
)
await db.execute(query)
async with SessionLocal() as db:
try:
if isinstance(db_data, list):
logger.debug(f"Удаляю записей: {len(db_data)}")
for data in db_data:
await deleteFromDB(data, db)
else:
logger.debug("Удаляю запись")
await deleteFromDB(db_data, db)
await db.commit()
logger.debug("Запись удалена")
return True
except Exception as e:
await db.rollback()
logger.error(f"Ошибка удаления: {str(e)}", exc_info=True)
return False
@staticmethod
async def update(model, id: int, **kwargs):
from sqlalchemy import update as sa_update
async with SessionLocal() as db:
try:
query = (
sa_update(model)
.where(model.id == id)
.values(**kwargs)
.execution_options(synchronize_session="fetch")
)
await db.execute(query)
await db.commit()
logger.debug("Запись обновлена")
return await db.get(model, id)
except Exception as e:
await db.rollback()
logger.error(f"Ошибка обновления: {str(e)}", exc_info=True)
return None