def lockable(options={})
unlock_strategy = options[:unlock_strategy]
unlock_strategy ||= self.unlock_strategy if respond_to?(:unlock_strategy)
unlock_strategy ||= :both
lock_strategy = options[:lock_strategy]
lock_strategy ||= self.lock_strategy if respond_to?(:lock_strategy)
lock_strategy ||= :failed_attempts
if lock_strategy == :failed_attempts
apply_devise_schema :failed_attempts, Integer, :default => 0
end
if [:both, :email].include?(unlock_strategy)
apply_devise_schema :unlock_token, String
end
apply_devise_schema :locked_at, DateTime
end