database.py•1.13 kB
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker, Session
from sqlalchemy.ext.declarative import declarative_base
from dotenv import load_dotenv
from urllib.parse import quote_plus
from contextlib import contextmanager
import os
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")
DB_NAME = os.getenv("DB_NAME")
DATABASE_URL = f"mysql+pymysql://{DB_USER}:{quote_plus(DB_PASSWORD)}@{DB_HOST}:{DB_PORT}/{DB_NAME}"
engine = create_engine(
DATABASE_URL,
echo=False,
pool_pre_ping=True,
pool_recycle=3600,
pool_size=5,
max_overflow=10,
connect_args={
'connect_timeout': 10
}
)
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
# Create base class for models
Base = declarative_base()
# Context manager for database sessions
@contextmanager
def get_db_session():
"""Context manager for database sessions. Automatically handles cleanup."""
db = SessionLocal()
try:
yield db
finally:
db.close()