Modifying User in Devise

user.rb

class User < ApplicationRecord
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
  ...
  
  def active_for_authentication? 
    super && approved? 
  end 
  
  def inactive_message 
    approved? ? super : :not_approved
  end
end