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

return unless Rails.application.server?

Rails.application.config.after_initialize do
  Hot::Constants.on_change(:log_active_record) { |bool| ActiveRecord::Base.logger.level = bool ? :debug : :fatal }
  Hot::Constants.on_change(:log_action_view) do |bool|
    ActionView::Base.logger.level = bool ? :debug : :fatal
    Rails.application.config.dev_loader.launch
  end
end