activemodel / kales.activemodel / MaybeRecordId

MaybeRecordId

sealed class MaybeRecordId

Data type that represents ApplicationRecord.id. Can be either NoneId or RecordId to represent the fact that an ID may or may not exist depending on whether the record has been previously persisted to the DB or not.

Inheritors

NoneId

 object NoneId : MaybeRecordId

ID for records that are only in-memory and not persisted in the database yet (or at all) Since ApplicationRecord IDs are generated (auto-increment), they should not be set when instantiating an object and instead auto assigned when persisting it to the database.

RecordId

 data class RecordId : MaybeRecordId

ID for records that have been previously persisted to the database and have an auto generated value.