update

AzA march 2026/workforce_planner/database.py

@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+"""Database Engine & Session – SQLite (lokal) oder PostgreSQL (Produktion)."""
+
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker, Session
+
+from .config import DATABASE_URL
+from .core.models import Base
+
+engine = create_engine(
+    DATABASE_URL,
+    echo=False,
+    connect_args={"check_same_thread": False} if "sqlite" in DATABASE_URL else {},
+)
+
+SessionLocal = sessionmaker(bind=engine, autocommit=False, autoflush=False)
+
+
+def init_db():
+    """Erstellt alle Tabellen falls sie noch nicht existieren."""
+    Base.metadata.create_all(bind=engine)
+
+
+def get_db() -> Session:
+    """Dependency für FastAPI – liefert eine DB-Session pro Request."""
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()