(setf (slot-value esd 'db-writer)
(when (slot-boundp dsd 'db-writer)
(delistify-dsd (view-class-slot-db-writer dsd))))
(setf (slot-value esd 'db-constraints)
(when (slot-boundp dsd 'db-constraints)
(delistify-dsd (view-class-slot-db-constraints dsd))))
(setf (slot-value esd 'db-writer)
(when (slot-boundp dsd 'db-writer)
(delistify-dsd (view-class-slot-db-writer dsd))))
(setf (slot-value esd 'db-constraints)
(when (slot-boundp dsd 'db-constraints)
(delistify-dsd (view-class-slot-db-constraints dsd))))