StatefulFieldFor

Provide the bang and predicate methods for Active Record.

Add this line to your application's Gemfile:

gem "stateful_field_for"

And then execute:

$ bundle

Or install it yourself as:

$ gem install stateful_field_for

class Picture < ApplicationRecord
+  stateful_field_for :hidden_at, scope: true do
+    enable  :hide, to: :hidden
+    disable :show, to: :visible, initial: true
+  end
end

Then you can use the bang and predicate methods:

picture = Picture.create

picture.show!
picture.hidden?  # false
picture.visible? # true

picture.hide!
picture.hidden?  # true
picture.visible? # false

The gem is available as open source under the terms of the MIT License.