stop DBIx::Class from attempting to cascade deletes on my has_many and might_have relationships?
By default, DBIx::Class cascades deletes and updates across has_many and might_have relationships. You can disable this behaviour on a per-relationship basis by supplying cascade_delete => 0 in the relationship attributes. The cascaded operations are performed after the requested delete or update, so if your database has a constraint on the relationship, it will have deleted/updated the related records or raised an exception before DBIx::Class gets to perform the cascaded operation. See DBIx::Class::Relationship.
