Devise

Devise Taking care of your users Andreas Bjärlestam 2011-02-22

Andreas Bjärlestam
mailto:andreas@bjarlestam.com
http://twitter.com/bjarlestam

So you are building a site with rails?

Hopefully you will have some users lining up...

They will probably f#&k things up USER USER

This could require quite some coding Signup page Login page Account confirmation mails Password reset mails Password reset page Checks and redirects

What to do?

DEVISE can do it!

DEVISE
User authentication
User signup
Account confirmaiton
Password recovery
Remembering via cookie
Session expiration
Account locking
http://github.com/plataformatec/devise

Lets code…

Create a rails project
$>rails new devise_test
$>cd devise_test
$>gem install devise
$>echo "gem 'devise'" >> Gemfile
$>rails generate devise:install
$>cat config/routes.rb | sed s/'# root :to'/'root :to'/ >> config/routes.rb

Create a User model
$>rails generate devise User
$>rake db:migrate

Test it
$>rails server
$>open http://localhost:3000/users/sign_up
$>open http://localhost:3000/users/sign_in
$>open http://localhost:3000/users/sign_out

What happened?

configuration
Configured routes
config/routes.rb
devise_for :users
Configuration file and localization
config/initializers/devise.rb
config/initializers/locales/devise.en.yml

User model
class User < ActiveRecord::Base
# Include default devise modules. Others available are:
# :token_authenticatable, :confirmable, :lockable and :timeoutable
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
# Setup accessible (or protected) attributes for your model
attr_accessible :email, :password, :password_confirmation, :remember_me
end

helpers available
before_filter :authenticate_user!
user_signed_in?
current_user

customize views
$>rails generate devise:views
create app/views/devise
create app/views/devise/confirmations/new.html.erb
create app/views/devise/mailer/confirmation_instructions.html.erb
create app/views/devise/mailer/reset_password_instructions.html.erb
create app/views/devise/mailer/unlock_instructions.html.erb
create app/views/devise/passwords/edit.html.erb
create app/views/devise/passwords/new.html.erb
create app/views/devise/registrations/edit.html.erb
create app/views/devise/registrations/new.html.erb
create app/views/devise/sessions/new.html.erb
create app/views/devise/shared/_links.erb
create app/views/devise/unlocks/new.html.erb

Attributions
http://www.flickr.com/photos/weelakeo/3815108314/
http://www.flickr.com/photos/nikio/3899114449/
http://www.flickr.com/photos/zigazou76/3636704536/
http://www.flickr.com/photos/myklroventine-events/3832058915/
http://www.flickr.com/photos/cokaigne/1401246909/
http://www.flickr.com/photos/alpha/5433405433

Devise

by Andreas Bjärlestam on Feb 21, 2011

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