LangChain / app /db /init_db.py
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from sqlalchemy.orm import Session
from app import crud, schemas
from app.core.config import settings
from app.db import base # noqa: F401
# make sure all SQL Alchemy models are imported (app.db.base) before initializing DB
# otherwise, SQL Alchemy might fail to initialize relationships properly
# for more details: https://github.com/tiangolo/full-stack-fastapi-postgresql/issues/28
def init_db(db: Session) -> None:
# Tables should be created with Alembic migrations
# But if you don't want to use migrations, create
# the tables un-commenting the next line
# Base.metadata.create_all(bind=engine)