Updates object when calling Save()

lecterlecter · **Joined:** Sat Nov 19, 2005 2:56 pm **Posts:** 1

I have a table, Book, with an assigned primary key, BookId:

Code:

<id name="BookId" column="bookId" type="Int32" unsaved-value="0">
 <generator class="assigned"/>
</id>

When saving a new Book (not updating), I want to get a primary key violation error if a book exists with the same Id. Now, even when i explicitly call session.Save(book), NHibernate updates the row... Why does this happen, and why is there Update()/SaveOrUpdate()-methods if Save() does this anyway..

Using NHibernate 1.0.1, SQL Server 2005 Express, Visual Studio 2005, C#, .NET 2.0

KPixel · **Posted:** Sun Nov 20, 2005 12:55 pm

unsaved-value="0" means that:
if (identifier==0) Save();
else Update();
(note that even if you remove it, the default unsaved-value of integers is "0").

sergey · **Posted:** Sun Nov 20, 2005 6:37 pm

Quote:

Now, even when i explicitly call session.Save(book), NHibernate updates the row...

This looks pretty much impossible. Can you check this once again and post more information? A small reproducible example and debug log output.