I am using Nhibernate with Fluent, to persist a SQL Server 2008 express database

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Asked: May 15, 20262026-05-15T17:57:51+00:00 2026-05-15T17:57:51+00:00

I am using Nhibernate with Fluent, to persist a SQL Server 2008 express database

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I am using Nhibernate with Fluent, to persist a SQL Server 2008 express database in a business application.

I have a class named Receipt which contains a list with many objects named ReceiptItems.
The user can create a receipt, add Receiptitems to it, and edit it as long as its not marked Finished.
This part works well and saves to the db correctly.
Now for the problem:

I also have a trigger on the sql table Receipt, that fires if the inserted.Finished is true.
The trigger fetches new prices from the “supplier table”, and updates the prices for all ReceiptItems,
in the ReceiptItems table.

When calling
session.SaveorUpdate(value)
and then
transaction.Commit()

the latter causes the exception:
StaleObjectStateException
Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect) in ReceiptItems

Removing the trigger ofcourse fixes the problem, but i need it to update the prices. Is there any way for nhibernate to ignore the
error, and refresh its cache after the trigger fires?

straightforward class example definitions with Fluent mappings:

 public class Receipt
    {

        public Receipt() { }
        /// <summary>Identificator/// </summary>
        public virtual int Id { get; private set; }
        /// <summary> if finished true, cant edit data/// </summary>
        public virtual Boolean Finished { get; set; }
        /// <summary>Items of this Receipt/// </summary>
        public virtual IList<ReceiptItems> Items{ get; set; }
    }

    /// <summary>Mapping for NHibernate Fluent/// </summary>
    public class ProdajaMap : ClassMap<Prodaja>
    {

        public ReceiptMap()
        {
            Table("Receipt");
            OptimisticLock.All();
            DynamicUpdate();
            Id(x => x.Id);
            Map(x => x.Finished);
            HasMany<ReceiptItems>(x => x.Items).AsBag().KeyColumn("Receipt_ID");
        }
    }

public class ReceiptItem
    {

        public ReceiptItem() { }

        public virtual int Id { get; private set; }
        /// <summary>Id of the Receipt/// </summary>
        public virtual int Receipt_ID{ get; set; }

        /// <summary>Supplier price/// </summary>
        public virtual decimal Price{ get; set; }
        /// <summary>Supplier discount/// </summary>
        public virtual decimal Discount { get; set; }
    }

    /// <summary>Mapping for NHibernate Fluent/// </summary>
    public class ReceiptItemMap : ClassMap<ReceiptItem>
    {
        public ReceiptItemMap()
        {
            Table("ReceiptItems");
            OptimisticLock.All();
            DynamicUpdate();
            Id(x => x.Id);
            Map(x => x.Receipt_ID).Column("Receipt_ID");
            Map(x => x.Price);
            Map(x => x.Discount );

        }
    }

Thank you very much !

UPDATE:

I’ve found a nhibernate property, which does exactly what i need, as the Price and Discount values have to be generated by the trigger:

5.6. Generated Properties Generated properties are properties which have
their values generated by the
database. Typically, Hibernate
applications needed to refresh objects
which contain any properties for which
the database was generating values.
Marking properties as generated,
however, lets the application delegate
this responsibility to Hibernate.
Essentially, whenever Hibernate issues
an SQL INSERT or UPDATE for an entity
which has defined generated
properties, it immediately issues a
select afterwards to retrieve the
generated values.

Properties marked as generated must
additionally be non-insertable and
non-updateable.