module Devise::Controllers::Helpers

:nodoc:

before_action :authenticate_admin! # Tell devise to use :admin map
before_action :authenticate_user! # Tell devise to use :user map
Use:

admin_session # Session data available only to the admin scope
user_session # Session data available only to the user scope
current_admin # Current signed in admin
current_user # Current signed in user
admin_signed_in? # Checks whether there is an admin signed in or not
user_signed_in? # Checks whether there is a user signed in or not
authenticate_admin! # Signs admin in or redirect
authenticate_user! # Signs user in or redirect
Generated methods:

Admin
User
Roles:

Example:
access that specific controller/action.
so you can control the scope of the user who should be signed in to
These filters should be used inside the controllers as before_actions,
Define authentication filters and accessor helpers based on mappings.

def self.define_helpers(mapping) #:nodoc:
  mapping = mapping.name
  class_eval <<-METHODS, __FILE__, __LINE__ + 1
    def authenticate_#{mapping}!(opts = {})
      opts[:scope] = :#{mapping}
      warden.authenticate!(opts) if !devise_controller? || opts.delete(:force)
    end
    def #{mapping}_signed_in?
      !!current_#{mapping}
    end
    def current_#{mapping}
      @current_#{mapping} ||= warden.authenticate(scope: :#{mapping})
    end
    def #{mapping}_session
      current_#{mapping} && warden.session(:#{mapping})
    end
  METHODS
  ActiveSupport.on_load(:action_controller) do
    if respond_to?(:helper_method)
      helper_method "current_#{mapping}", "#{mapping}_signed_in?", "#{mapping}_session"
    end
  end
end