small changes

back/api.py

@@ -114,7 +114,7 @@ def delete_from_db(announcement: schemas.DelAnnouncement, db: Annotated[Session,
 def change_book_status(data: schemas.Book, current_user: Annotated[schemas.User, Depends(utils.get_current_user)], 
         db: Annotated[Session, Depends(utils.get_db)], db: Annotated[Session, Depends(utils.get_db)]):
     # Находим объявление по данному id
-    announcement_to_change = db.query(models.Announcement).filter(Announcement.id == data.id).first()
+    announcement_to_change = db.query(models.Announcement).filter(models.Announcement.id == data.id).first()
     # Проверяем, что объявление с данным id существует
     if not announcement_to_change:
         raise HTTPException(status_code=404, detail="Item not found")