docs/recipes/devise.md
# Using YAAF with Devise
[Devise](https://github.com/heartcombo/devise) is a gem that provides flexible authentication solution for Rails apps.
## Usage
Set the `resource_class` on your controller that inherits from `Devise::RegistrationsController` to be the class of the form object. In your form object, delegate missing methods that Devise might call to the `user`. If you want to be specific on which methods to delegate that's fine too.
For example, a simple registration form will look like this:
```ruby
# app/forms/registration_form.rb
class RegistrationForm < ApplicationForm
attr_accessor :first_name, :last_name, :email, :password,
:password_confirmation
# To let Devise treat the form object as it were the actual user object
delegate_missing_to :user
def initialize(args = {})
super(args)
@models = [user]
end
# Override this method to let Devise know whether the form object saved the resource correctly or not
# `delegate_missing_to :user` will not be enough because the user method has been memoized hence
# the `persisted?` attribute will have an outdated value
def persisted?
user.persisted?
end
private
def user
@user ||= User.new(
email: email,
first_name: first_name,
last_name: last_name,
password: password,
password_confirmation: password_confirmation
)
end
end
```
```ruby
# app/controllers/users/registrations_controller.rb
module Users
class RegistrationsController < Devise::RegistrationsController
private
def resource_class
RegistrationForm
end
end
end
```
## Got questions?
Feel free to [create an issue](https://github.com/rootstrap/yaaf/issues) and we'll discuss about it.
YAAF is maintained by [Rootstrap](http://www.rootstrap.com) with the help of our [contributors](https://github.com/rootstrap/yaaf/contributors).
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