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.
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