ActiveAdmin boolean filter as a single flag

Question

How can I filter a boolean with a single flag?

For example, the following gives me two flags with yes and no values:

 ActiveAdmin.register User do filter :is_retired, :as => :check_boxes end 

The HBTM association is filtered as follows:

 filter :roles_id, :as => :check_boxes, :collection => proc { Role.all } 

But I have a logical field in my User model, and I need one checkbox labeled Is retired . Is it possible somehow?

Answer 1

As suggested elsewhere, filter :enabled, as: :select, collection: [["Yes", true], ["No", false]]

Answer 2

 filter :is_retired, as: :check_boxes, collection: [['Yes', true]], label: 'Retired?'