------------------------------------- Mads Hartmann Jensen<mads...@gmail.com> wrote:
hello Jeppe, In my project I've got the following three models: A discovery, a Scientist and a lab. The Discovery has been invented by someone, this is either a single scientist or sometimes a lab - This is easily done through inheritance (would create a superclass named source) but I'm not sure how to do this so it maps nicely to the database. Scientist and Lab only share one attribute so what I'm most interested in is to be able express that a Discovery has s source that can be either a lab or scientist :) Hope this explains my problem more clearly, thanks for the help Mads Hartmann Sent from my iPhone On 04/02/2010, at 18.17, Jeppe Nejsum Madsen <je...@ingolfs.dk> wrote: > Mads Hartmann <mads...@gmail.com> writes: > >> Hello Everyone, >> >> I'm currently trying to figure out how to map objects with >> inheritance >> using the Mapper framework. I've got a Lab and a Scientist who >> inherit >> from Source. >> >> As I understand there's no direct way to do inheritance using the >> Mapper framework so I'm trying to figure out how to implement 'Single >> Table Inheritance'. >> >> Right now I'm trying to create a single trait (Source) for the values >> that they share called BaseSource and my idea is to mix it in both >> Lab >> and Scientist. I would then define the table name of both scientist >> and lab to be the same - I think this would work but what I'm not >> sure >> of is the following: >> >> - If both Scientist and Lab mixes in the IdPK trait and use the same >> table, will the id still be unique? >> - A Discovery has a source, how do i create MappedLongForeignKey to >> the table they share (lab, scientist)? >> >> I hope you'll be able to help me out :) > > I can't say I follow the above :-) Do you want to share tables, code > or > both? Maybe list the table structure and explain how you would like to > map it.... > > /Jeppe > > -- > You received this message because you are subscribed to the Google > Groups "Lift" group. > To post to this group, send email to lift...@googlegroups.com. > To unsubscribe from this group, send email to > liftweb+unsubscr...@googlegroups.com > . > For more options, visit this group at > http://groups.google.com/group/liftweb?hl=en > . > -- You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
