Redirects visitor up the restful route if record not found

record_not_found.rb

# controllers/concerns/record_not_found.rb
#
# Redirects visitor up the restful route if record not found
#
# /articles/404 -> /articles/ -> /

module RecordNotFound
  extend ActiveSupport::Concern

  included do
    rescue_from ActiveRecord::RecordNotFound do |exception|
      redirect_to Hash[:action, :index], alert: (admin? ? exception.message : t('errors.record_not_found'))
    end
  end

  def routing_error
    redirect_to "/#{params[:unmatched_route].split('/')[0..-2].join '/'}"
  end
end