# polytropos-persistent Yesod `persistent` relational database marshalling and entity wrappers for [polytropos](https://github.com/NadiaYvette/polytropos) open records. ## Overview `polytropos-persistent` connects open records with the Yesod ecosystem's `persistent` library, providing fast zero-tuple marshalling to and from `[PersistValue]` rows. ## Features - **`PersistRow`**: Fast conversion between open records and `[PersistValue]` lists (`toPersistFieldsRecord`, `fromPersistValuesRecord`). - **`PolyRowEntity`**: Type-safe wrapper for database entities storing `Key` alongside open records. - **Whole-Record Column Storage**: Direct `PersistField` and `PersistFieldSql` serialization for embedded records. ## License Dual-licensed under `EUPL-1.2 OR Apache-2.0`.