Gems like [simple form](https://github.com/plataformatec/simple_form) use data types to automatically construct forms for models. E.g., boolean (`TrueClass` in [couchrest-model](https://github.com/couchrest/couchrest_model)) results in a checkbox.
Gems like simple form use data types to automatically construct forms for models. E.g., boolean (
TrueClassin couchrest-model) results in a checkbox.