I think I'd have to disagree with that being a many to one situation. That in my opinion SHOULD be a one to many. A golfer can have many addresses, if you only care about a single address, it should be a 1 to 1 association.
Having multiple golfers share 1 address is wrong even if they have the same physical street address. How do you differentiate if the address changes, say becomes a mailbox number. At that point you change the address of one of the golfers you just updated every golfer that had that address. I understand the point of databases is to minimize data duplication but IMO this is a wrong application of it. Seeing what you're attempting I'm going to assume most likely in your edit address place you are creating a new address for that person then trying to save the person. This would most likely leave the original address object in the session as transient which gives you this error. My guess would be something along the lines: var prevAddress = golfer.Address; golfer.Address = new Address(...) session.Save(prevAddress) session.Save(person) session.Flush() On Feb 11, 3:43 pm, Ramana Kumar <[email protected]> wrote: > No, I did mean Many to One :-) The Domain Objects are Golfer and Address > and many Golfers can share the same Address. Per James > "i-think-you-mean-a-many-to-one-sir" G, this should be mapped as Many to > one. I am just not sure how to do it thru AutoMap conventions. > HTH > Ramana > > namespace GolfHandicapManager.Core > { > public class Golfer : Entity > { > public Golfer() { } > [DomainSignature] > [NotNullNotEmpty] > public virtual string FirstName { get; set; } > [DomainSignature] > [NotNullNotEmpty] > public virtual string LastName { get; set; } > [NotNullNotEmpty] > public virtual string EmailAddress { get; set; } > public virtual string EmailAddress2 { get; set; } > public virtual string HomePhone { get; set; } > public virtual string CellPhone { get; set; } > public virtual Address Address { get; set; } > } > public class Address : Entity > { > public Address() { } > [DomainSignature] > public virtual string Addr1 { get; set; } > public virtual string Addr2 { get; set; } > [DomainSignature] > public virtual string City { get; set; } > public virtual string State { get; set; } > public virtual string Country { get; set; } > public virtual string ZipCode { get; set; } > } > > } > On Wed, Feb 11, 2009 at 2:05 PM, Chris Marisic <[email protected]> wrote: > > > Do you mean One to Many? > > > convention.OneToManyConvention = m => > > { > > m.Cascade.All(); > > }; > > > On Feb 11, 1:58 pm, Ramana Kumar <[email protected]> wrote: > > > Hi > > > I am trying to use AutoMap to define behaviour for ManyToOne and I get > > the > > > following exception > > > > object references an unsaved transient instance - save the transient > > > instance before flushing: > > > > The relevant code is > > > > public class AutoPersistenceModelGenerator : > > IAutoPersistenceModelGenerator > > > { > > > public AutoPersistenceModel Generate() > > > { > > > AutoPersistenceModel mappings = AutoPersistenceModel > > > .MapEntitiesFromAssemblyOf<Golfer>() > > > .Where(GetAutoMappingFilter) > > > .WithConvention(GetConventions); > > > return mappings; > > > } > > > > private bool GetAutoMappingFilter(Type t) > > > { > > > return t.Namespace == "GolfHandicapManager.Core"; > > > } > > > private void GetConventions(Conventions c) > > > { > > > c.GetPrimaryKeyNameFromType = type => "ROW_ID"; //DB has > > ROW_ID > > > as Primary Key > > > c.FindIdentity = type => type.Name == "ID"; // S#arp > > currently > > > uses "ID" > > > // Taken from Ayende Blog > > > c.GetForeignKeyNameOfParent = (type => type.Name + "_ID"); > > > c.GetTableName = type => > > > Inflector.Net.Inflector.Pluralize(type.Name); > > > c.IsBaseType = IsBaseTypeConvention; > > > // Convert PropertyName to Underscore > > > c.AddPropertyConvention(new > > > PascalToUnderscorePropertyConvention()); > > > } > > > > I am assuming I have to do a "cascade=all" somewhere in there but do not > > > know how to do it thru a convention. > > > > Any pointers? > > > Thanks > > > Ramana > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
