easy-going-rails/config/initializers/hot_constants.rb

return unless defined?(Rails::Server)

require Rails.root.join('lib', 'hot_constants', 'hot_constants')

HotConstants.initialize
HotConstants.on_change(:log_active_record) { |bool| ActiveRecord::Base.logger.level = bool ? :debug : :fatal }
HotConstants.on_change(:log_action_view) { |bool| ActionView::Base.logger.level = bool ? :debug : :fatal }