I'm going to find a way to sticky Jame's post here: http://blog.jagregory.com/2009/01/27/i-think-you-mean-a-many-to-one-sir/
<http://blog.jagregory.com/2009/01/27/i-think-you-mean-a-many-to-one-sir/>Google Groups really needs stickies ;) (Read that article please) On Wed, Jan 20, 2010 at 2:38 PM, Brian Kendig <[email protected]> wrote: > I'm really not clear on Fluent NHibernate mappings. I'm trying to do > something simple, and I'm not able to figure out how to do it. > > My project has a User class and a UserProfile class. A User object > contains the basic frequently-used information about a user (username, > password, default profile picture path, etc.), and a UserProfile class > contains details that are used less often (address, phone number, > etc.). Every User will have exactly one unique UserProfile. The User > class contains a foreign key to the UserProfile class, but not the > other way 'round, because I'll never need to look up the user for a > given profile. > > I want to set this up so that when I create a User, the User object > automatically creates its UserProfile object. My project calls: > > User newUser = new User(); > userRepository.SaveOrUpdate(newUser); > > and my User class contains the property: > > public virtual UserProfile userProfile { get; set; } > > and in the constructor, > > userProfile = new UserProfile(); > > When I run this code, I get an "object references an unsaved transient > instance - save the transient instance before flushing" error because > it's not saving the UserProfile object. > > So in UserMappingOverride.cs, I set: > > mapping.HasOne(x => x.UserProfile).Cascade.All(); > > Now I don't get an error, but the UserProfile object isn't saved to > the database, and newUser.userProfile is null. > > How do I get this to work? And, what's the best concise reference for > achieving a better understanding of how mappings work? I've found a > lot of documentation, but it just hasn't clicked so far. > > > -- > 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]<fluent-nhibernate%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/fluent-nhibernate?hl=en. > > > > -- - Hudson http://www.bestguesstheory.com http://twitter.com/HudsonAkridge--
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