DataMapper ORM v1.8.2

[eluser]Mark Price[/eluser]
I'm having problems with the cascading deletion (auto cleanup) on one to many relationships. Rather than deleting the records in the relation table it is setting the foreign key to NULL. However, the auto cleanup works fine with my many to many relation tables.

This could be a tricky situation because there could be times when you would want it to NULL the value. For instance you might want to delete a Country but not all of the Users associated to that Country and there are times when you could have child records that are dependent on a single parent record and when the parent is deleted the children are deleted as well.

Is there a way to mark a one to many relationship as dependent or not?