log-center/app/database.py
zyc e9ba36db92
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fix bug three
2026-02-13 14:04:21 +08:00

43 lines
1.4 KiB
Python

from sqlmodel import SQLModel, create_engine
from sqlmodel.ext.asyncio.session import AsyncSession
from sqlalchemy.ext.asyncio import create_async_engine
from sqlalchemy.orm import sessionmaker
from sqlalchemy import text
import os
from dotenv import load_dotenv
load_dotenv()
DB_USER = os.getenv("DB_USER")
DB_PASSWORD = os.getenv("DB_PASSWORD")
DB_HOST = os.getenv("DB_HOST")
DB_PORT = os.getenv("DB_PORT", "5432")
DB_NAME = os.getenv("DB_NAME")
DATABASE_URL = f"postgresql+asyncpg://{DB_USER}:{DB_PASSWORD}@{DB_HOST}:{DB_PORT}/{DB_NAME}"
engine = create_async_engine(DATABASE_URL, echo=True, future=True)
async def init_db():
async with engine.begin() as conn:
# await conn.run_sync(SQLModel.metadata.drop_all)
await conn.run_sync(SQLModel.metadata.create_all)
# Migrate: add new columns to existing repairtask table
migrations = [
"ALTER TABLE repairtask ADD COLUMN repair_round INTEGER DEFAULT 1",
"ALTER TABLE repairtask ADD COLUMN failure_reason TEXT",
]
for sql in migrations:
try:
await conn.execute(text(sql))
except Exception:
pass # Column already exists
async def get_session() -> AsyncSession:
async_session = sessionmaker(
engine, class_=AsyncSession, expire_on_commit=False
)
async with async_session() as session:
yield session