Monban 門番

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Monban is designed to be very simple and extensible user authentication. It's goal is to give all the power to the developer instead of forcing them to make Monban work with their system

Why use Monban?

Monban makes authentication simple:

  • Uses warden
  • Provides convenient controller helpers
  • Provides a rails generator for default controllers and views
  • TODO: Very customizable

Monban doesn't do the following:

  • Doesn't automatically add routes to your application
  • Doesn't force you to use engine based controllers or views
  • Doesn't require you to make changes to your user model


Monban was designed to work with Rails > 3.1. Add this line to your Gemfile:

gem 'monban'

Then inside of your ApplicationController add the following:

include Monban::ControllerHelpers

You may also generate a scaffold to start with:

rails g monban:scaffold

This will generate a bare bones starting point. If you don't want the full stack you can just generate some controllers with:

rails g monban:controllers


Monban does currently have some expectations, but these will change. Here are the current requirements:

  • Your model must be called User
  • You must have an email and password_digest column on your User
  • Passwords will be run through BCrypt

Controller Additions

Monban provides the following controller methods:

  • sign_in(user)
  • sign_out
  • sign_up(user)
  • authenticate_session(session_params)
  • authenticate(user, password)

These helpers:

  • current_user
  • signed_in?

And this filter:

  • require_login

Advanced Functionality

You may perform a look up on a user using multiple fields by doing something like the following:

class SessionsController < ApplicationController
  def create
    if user = authenticate_session(session_params, email_or_username: [:email, :username])
      redirect_to root_path
    else = "Invalid username or password"
      render :new


  def session_params
    params.require(:session).permit(:email_or_username, :password)


This will allow the user to enter either their username or email to login


  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request