upd: add check for ISBN before change ISBN

2023-12-14 04:02:52 +00:00
parent 2cdab5c9ac
commit 67b681d1dd
1 changed files with 2 additions and 0 deletions
--- a/backend/src/engine.cpp
+++ b/backend/src/engine.cpp
@ -314,6 +314,8 @@ std::vector<std::string> BookStoreEngineClass::ExecuteMOdify(
  if (login_stack.top().second == "" || login_stack.top().second == new_ISBN)
    return std::vector<std::string>({"Invalid"});
  // debugPrint("successfully checked ISBN");
+  if (new_ISBN != "" && book_data_base.HaveISBN(new_ISBN))
+    return std::vector<std::string>({"Invalid"});
  if (keyword != "") {
    std::vector<std::string> key_list;
    if (!KeyWordSpliter(keyword, key_list, false))