Devise
About Devise
Devise is a flexible authentication solution for Rails based on Warden.
- Is Rack based;
- Is a complete MVC solution based on Rails engines
- Allows you to have multiple models signed in at the same time;
- Is based on a modularity concept: use only what you really need.
- Database Authenticatable: hashes and stores a password in the database to validate the authenticity of a user while signing in. The authentication can be done both through POST requests or HTTP Basic Authentication.
- Omniauthable: adds OmniAuth (https://github.com/intridea/omniauth) support.
- Confirmable: sends emails with confirmation instructions and verifies whether an account is already confirmed during sign in.
- Recoverable: resets the user password and sends reset instructions.
- Registerable: handles signing up users through a registration process, also allowing them to edit and destroy their account.
- Rememberable: manages generating and clearing a token for remembering the user from a saved cookie.
- Trackable: tracks sign in count, timestamps and IP address.
- Timeoutable: expires sessions that have not been active in a specified period of time.
- Validatable: provides validations of email and password. It's optional and can be customized, so you're able to define your own validations.
- Lockable: locks an account after a specified number of failed sign-in attempts. Can unlock via email or after a specified time period.
Getting Started
Step 1: add following line to gem file
gem "devise"
Step 2: Console
bundle install
Step 3:
rails g devise:install
Step 4:
config.action_mailer.default_url_options = { host: 'localhost:3000' }
Step 5:
following command you will replace MODEL with the class name used for the application's users (it's frequently User but could be any name).
rails g devise MODEL
Step 6:
rake db:migrate
Step 7: Controllers filters and helpers
Devise will create some helpers to use inside your controller and views. To set up a controller with the user authentication. just add this before_action( assume your devise model is 'User')
before_action: authenticate_user!
