has_scope

Automatically maps URL parameters to ActiveRecord scopes with type checking, reducing boilerplate code. For example, declaring `has_scope :featured, type: :boolean` cleanly handles boolean filters without manual parsing.

Supports rich options like `:type`, `:only`, `:except`, `:default`, and blocks for custom logic, allowing conditional and complex scope applications. The README shows how to use `:if` and `:unless` for fine-grained control.

Can be included in plain Ruby objects outside Rails controllers, enabling use in query objects or services. The example demonstrates creating a `GraduationsSearchQuery` class for encapsulated filtering logic.

Provides `current_scopes` to track applied scopes during a request, useful for debugging or view logic. The README illustrates how it returns a hash of scope names and values after filtering.