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DRP Backend — Database Configuration
SQLite + SQLAlchemy for the prototype.
"""
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker, declarative_base
DATABASE_URL = "sqlite:///./drp.db"
engine = create_engine(DATABASE_URL, connect_args={"check_same_thread": False})
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
Base = declarative_base()
def get_db():
"""Dependency for FastAPI routes — yields a DB session."""
db = SessionLocal()
try:
yield db
finally:
db.close()
def init_db():
"""Create all tables. Called once on startup."""
from models import Base as _ # noqa: ensure models are imported
Base.metadata.create_all(bind=engine)
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