Update app/database.py

app/database.py

@@ -3,11 +3,17 @@ from sqlalchemy.orm import sessionmaker, DeclarativeBase
 from .config import Settings, build_database_url
 
 settings = Settings()
+db_url = build_database_url(settings)
 
 class Base(DeclarativeBase):
     pass
 
-engine = create_engine(build_database_url(settings), echo=False, pool_pre_ping=True)
+engine_kwargs = {"echo": False, "pool_pre_ping": True}
+if db_url.startswith("sqlite"):
+    # Uvicorn / FastAPI でスレッド跨ぎが起きても問題ないように
+    engine_kwargs["connect_args"] = {"check_same_thread": False}
+
+engine = create_engine(db_url, **engine_kwargs)
 SessionLocal = sessionmaker(bind=engine, autoflush=False, autocommit=False)
 
 def get_db():