init commit

backend/app/database.py

@@ -0,0 +1,22 @@
+from pathlib import Path
+from sqlalchemy import create_engine
+from sqlalchemy.orm import DeclarativeBase, Session, sessionmaker
+
+DATA_DIR = Path(__file__).resolve().parent.parent.parent / "data"
+DATA_DIR.mkdir(exist_ok=True)
+DB_PATH = DATA_DIR / "planner.db"
+
+engine = create_engine(f"sqlite:///{DB_PATH}", echo=False)
+SessionLocal = sessionmaker(bind=engine, class_=Session, expire_on_commit=False)
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()