mirror of
https://github.com/azaion/gps-denied-desktop.git
synced 2026-04-22 22:06:36 +00:00
Oleksandr Bezdieniezhnykh
50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
from typing import AsyncGenerator
|
|
from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine, async_sessionmaker
|
|
from sqlalchemy.orm import DeclarativeBase
|
|
|
|
from models.config import DatabaseConfig
|
|
|
|
|
|
class Base(DeclarativeBase):
|
|
pass
|
|
|
|
|
|
_engine = None
|
|
_session_factory = None
|
|
|
|
|
|
def get_engine(config: DatabaseConfig):
|
|
global _engine
|
|
if _engine is None:
|
|
url = f"postgresql+asyncpg://{config.username}:{config.password}@{config.host}:{config.port}/{config.database}"
|
|
_engine = create_async_engine(
|
|
url,
|
|
pool_size=config.pool_size,
|
|
max_overflow=config.max_overflow,
|
|
pool_timeout=config.pool_timeout,
|
|
pool_recycle=config.pool_recycle,
|
|
)
|
|
return _engine
|
|
|
|
|
|
def get_session_factory(config: DatabaseConfig):
|
|
global _session_factory
|
|
if _session_factory is None:
|
|
engine = get_engine(config)
|
|
_session_factory = async_sessionmaker(engine, expire_on_commit=False)
|
|
return _session_factory
|
|
|
|
|
|
async def get_session(config: DatabaseConfig) -> AsyncGenerator[AsyncSession, None]:
|
|
factory = get_session_factory(config)
|
|
async with factory() as session:
|
|
yield session
|
|
|
|
|
|
async def init_db(config: DatabaseConfig) -> None:
|
|
engine = get_engine(config)
|
|
async with engine.begin() as conn:
|
|
from .models import Base
|
|
await conn.run_sync(Base.metadata.create_all)
|
|
|