confirmations_controller.rb

class ConfirmationsController < Devise::ConfirmationsController
  def almost_there
    flash[:notice] = nil
    render layout: "devise_empty"
  end

  protected

  def after_resending_confirmation_instructions_path_for(resource)
    users_almost_there_path
  end

  def after_confirmation_path_for(resource_name, resource)
    if signed_in?(resource_name)
      after_sign_in_path_for(resource)
    else
      sign_in(resource)
      if signed_in?(resource_name)
        after_sign_in_path_for(resource)
      else
        new_session_path(resource_name)
      end
    end
  end
end