class Configurable < User devise :database_authenticatable, :confirmable, :rememberable, :timeoutable, :lockable, stretches: 15, pepper: 'abcdef', allow_unconfirmed_access_for: 5.days, remember_for: 7.days, timeout_in: 15.minutes, unlock_in: 10.days end class WithValidation < Admin devise :database_authenticatable, :validatable, password_length: 2..6 end class UserWithValidation < User validates_presence_of :username end class UserWithCustomEncryption < User protected def password_digest(password) password.reverse end end class UserWithVirtualAttributes < User devise case_insensitive_keys: [ :email, :email_confirmation ] validates :email, presence: true, confirmation: {on: :create} end class Several < Admin devise :validatable devise :lockable end class Inheritable < Admin end