39 lines
905 B
Python
39 lines
905 B
Python
import os
|
|
from sqlalchemy import create_engine
|
|
from sqlalchemy.orm import sessionmaker, DeclarativeBase
|
|
|
|
|
|
class Base(DeclarativeBase):
|
|
"""Base class for all ORM models."""
|
|
|
|
|
|
def get_database_url() -> str:
|
|
"""
|
|
DATABASE_URL is configurable via env, default to local SQLite file.
|
|
Example: sqlite:///./data/ops_core.db
|
|
"""
|
|
return os.getenv("DATABASE_URL", "sqlite:///./data/ops_core.db")
|
|
|
|
|
|
DATABASE_URL = get_database_url()
|
|
|
|
# For SQLite, check_same_thread=False is required when used with FastAPI / threads.
|
|
engine = create_engine(
|
|
DATABASE_URL,
|
|
connect_args={"check_same_thread": False} if DATABASE_URL.startswith("sqlite") else {},
|
|
)
|
|
|
|
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
|
|
|
|
|
|
def get_db():
|
|
"""
|
|
FastAPI dependency to provide a DB session.
|
|
"""
|
|
db = SessionLocal()
|
|
try:
|
|
yield db
|
|
finally:
|
|
db.close()
|
|
|