rails controller exception handler

controller_exception_handler.rb

class ApplicationController < ActionController::Base
  rescue_from ActiveRecord::RecordNotFound, with: :record_not_found
  
  private
  def record_not_found
    render plain "404 not found", status: 404
  end
end


class ApplicationController < ActionController::Base
  rescue_from Exception do |exception|
    if Rails.env.production? or Rails.env.staging?
        and ![ActionController::RoutingError].include?(exception.class)
      Rails.logger.info "send exception email!"
      SystemMailer.web_exception_notify(AppConfig.app_notify_receiver, {
        request: request,
        params: params,
        user: current_user,
        exception: exception
      }).deliver_now
      redirect_to '/?response_code=505'
    else
      raise exception
    end
  end
end