Now I understands it. For mapping enum, you 'hard-code' your type to int, it will cause the object become dirty immediately.
As explained in the following two posts: http://graysmatter.codivation.com/CommentView,guid,6fe1a7c3-1245-45b8-98f1-e4b369dcded9.aspx http://blog.benhartonline.com/post/2008/10/09/NHibernate-objects-dirty-on-load-with-nothing-set-in-between.aspx In my case, I am migrating my mapping from HBM to FluentNHibernate. In HBM, I can just ignore the type, and NHibernate will figure out the base type of my enum for me (which is int) ... Now in FluentNhibernate, if I didn't set CustomTypeIs, I am forced to map the column type of string .... which is not right ... Is there a way to work around this issue? On Apr 24, 3:00 pm, harrychou <[email protected]> wrote: > I have a problem. Whenever I add a mapping with .CustomTypeIs(typeof > (int)), NHiberate thinks my object is dirty and try to update the > object for me. ... > > This is causing performance problem since FindAll call will cause > massive update statements .... > > The reason I use .CustomTypeIs(typeof(int)) is that I want my enum to > map to integer ... > > My mapping is like the following, whenever I uncommnet the last row > (Map(x => x.ContractType).CustomTypeIs(typeof(int));) I didn't get > the extra update statement. .... > > public ClientMap() > { > Id(x => x.ID, "ClientID").GeneratedBy.GuidComb(); > Version(x => x.Version).SetAttribute("unsaved-value", > "-1"); > Map(x => x.LastUpdatedDateTime); > Map(x => x.LastUpdatedUser); > Map(x => x.CreatedDateTime); > Map(x => x.CreatedUser); > > Map(x => x.SharePointID); > Map(x => x.BMC_ID); > > Map(x => x.ClientName); > Map(x => x.CompanyFullName); > Map(x => x.AlternativeNames); > Map(x => x.Acronym); > HasMany(x => x._CompanyAddress).Cascade.AllDeleteOrphan(); > Map(x => x.RenewalMonth); > Map(x => x.Platform); > Map(x => x.IsActive); > Map(x => x.IsCareFirstConnectClient); > Map(x => x.InfoBoxEmail); > > HasMany(x => > x._ClientRoleAssignments).Cascade.AllDeleteOrphan(); > > HasMany(x => x._ClientContacts).Cascade.AllDeleteOrphan(); > > Map(x => x.ContractType).CustomTypeIs(typeof(int)); > } --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Fluent NHibernate" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/fluent-nhibernate?hl=en -~----------~----~----~----~------~----~------~--~---
