hi guys: how lift mapper works with many-to-many relationships? the definitive book told me to write code like this:
class ManyToManyRelation extends LongKeyedMapper[ManyToManyRelation] with IdPK { ...... object obj1 extends MappedLongForeignKey(this, other1) object obj2 extends MappedLongForeignKey(this, other2) } so this method uses obj1 and obj2 to keep this ManyToMany relation. My question is : this method uses IdPK trait and id field as primary key, but sometimes (obj1, obj2) can identify single item. how can i use tupple (obj1, obj2) as primary key field without using idPK trait? After all, this idPK field seems to be redundant here. -- 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.