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09801ca | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | import os
from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker, AsyncSession
from sqlalchemy.orm import declarative_base
# Database configuration
# Requires format: postgresql+asyncpg://user:password@localhost/dbname
DATABASE_URL = os.environ.get(
"DATABASE_URL",
"postgresql+asyncpg://datavision:datavision_dev@localhost:5433/datavision"
)
if DATABASE_URL.startswith("postgres://"):
DATABASE_URL = DATABASE_URL.replace("postgres://", "postgresql://", 1)
if DATABASE_URL.startswith("postgresql://") and not DATABASE_URL.startswith("postgresql+asyncpg://"):
DATABASE_URL = DATABASE_URL.replace("postgresql://", "postgresql+asyncpg://", 1)
if "?sslmode=require" in DATABASE_URL:
DATABASE_URL = DATABASE_URL.replace("?sslmode=require", "?ssl=require")
elif "&sslmode=require" in DATABASE_URL:
DATABASE_URL = DATABASE_URL.replace("&sslmode=require", "&ssl=require")
# Async Engine
engine = create_async_engine(DATABASE_URL, echo=False, future=True)
# Async Session Factory
AsyncSessionLocal = async_sessionmaker(
bind=engine,
autocommit=False,
autoflush=False,
expire_on_commit=False,
class_=AsyncSession
)
from app.models.base import Base
# Dependency to get DB session
async def get_db():
async with AsyncSessionLocal() as session:
try:
yield session
if session.is_active:
try:
await session.commit()
except Exception:
await session.rollback()
except Exception:
if session.is_active:
await session.rollback()
raise
finally:
await session.close()
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