errors_controller.rb

module Kokoro
  class ErrorsController < ApplicationController
    skip_before_action :guards_for_user

    def not_found
      Rails.logger.info(not_found_message)
      path = env["ORIGINAL_FULLPATH"]

      render(
        template: "kokoro/errors/not_found",
        locals: { path: path },
        status: 404
      )
    end

    def error
      Rails.logger.error(error_message)

      render(template: "kokoro/errors/error", status: 500, formats: :html)
    end

    private

    def not_found_message
      message("Not Found")
    end

    def error_message
      message("System Error. User ID: #{current_user.id}")
    end

    def message(type)
      exception = env["action_dispatch.exception"]
      full_path = env["ORIGINAL_FULLPATH"]

      "#{type}: '#{full_path}'. "\
        "#{exception.class} (#{exception.message}) error was raised."
    end
  end
end

404 routes to #not_found, 50x routes to #error