DRY is for classes in DB you have normalization/denormalization btw http://nhforge.org/doc/nh/en/index.html#collections-heterogeneous
2010/3/17 Dan Kennedy <[email protected]> > I understand that there will be a nullable column for each parent but > that's the existing schema. I guess the reason for implementing it > that way was so DRI could still be enforced while re-using a common > set of fields in the table. I know that it would be much simpler to > map if there was a PersonPhoneNumber table and an > OrganisationPhoneNumber table but the question was really whether > nhibernate could be used with the existing schema? > > On Mar 17, 2:40 pm, Fabio Maulo <[email protected]> wrote: > > Map it naturally and you will have two nullable columns in > OwnedPhoneNumber > > (one per each parent). > > Why ? > > Think about how RDBMS's FK works > > > > 2010/3/17 Dan Kennedy <[email protected]> > > > > > > > > > I've posted this question on stackoverflow but have not exactly had a > > > stunning response so far. I basically want to map a different foreign > > > key column on a child collection depending on the type of the parent > > > object. The question has sample tables and code to explain the problem > > > more clearly. Does anyone know if this is possible? > > > > >http://stackoverflow.com/questions/2454995/map-different-child-foreig. > .. > > > > > Thanks > > > > > -- > > > You received this message because you are subscribed to the Google > Groups > > > "nhusers" group. > > > To post to this group, send email to [email protected]. > > > To unsubscribe from this group, send email to > > > [email protected]<nhusers%[email protected]> > <nhusers%[email protected]<nhusers%[email protected]> > > > > > . > > > For more options, visit this group at > > >http://groups.google.com/group/nhusers?hl=en. > > > > -- > > Fabio Maulo > > -- > You received this message because you are subscribed to the Google Groups > "nhusers" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<nhusers%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/nhusers?hl=en. > > -- Fabio Maulo -- You received this message because you are subscribed to the Google Groups "nhusers" 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/nhusers?hl=en.
