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d787a09 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | """SQLite storage for saved progress / matters (SPEC §7).
Lean SQLAlchemy setup. The DB stores a lightweight "matter" (a saved progress
record) and per-step completion. It never stores legal advice — only the user's
own checklist state and free-text notes.
"""
from __future__ import annotations
from typing import Iterator
from sqlalchemy import create_engine
from sqlalchemy.orm import Session, sessionmaker
from app.config import get_settings
from app.models import Base
_settings = get_settings()
# check_same_thread=False is needed for SQLite under the threaded dev server.
_connect_args = (
{"check_same_thread": False} if _settings.db_url.startswith("sqlite") else {}
)
engine = create_engine(_settings.db_url, future=True, connect_args=_connect_args)
SessionLocal = sessionmaker(bind=engine, autoflush=False, expire_on_commit=False)
def init_db() -> None:
"""Create tables if they don't exist (idempotent)."""
Base.metadata.create_all(bind=engine)
def get_db() -> Iterator[Session]:
"""FastAPI dependency: yields a session and always closes it."""
db = SessionLocal()
try:
yield db
finally:
db.close()
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