atlas

Cleanly separates persistence logic from business logic, enabling multiple database connections and validation workflows, as demonstrated in the persistence examples with different validator modules.

Supports built-in validators and custom callbacks, allowing complex data integrity checks like the Manager validator that enforces age restrictions beyond base model rules.

Provides a chainable interface for building queries, shown in examples where conditions and ordering can be combined, making code readable and reusable.

Automatically creates field accessors and `with_[field]` finder functions, reducing boilerplate, with the ability to override for custom behavior as in the email upcasing example.