Devise: Disable password confirmation during sign-up

Question

I am using Devise for Rails. In the default registration process, Devise requires users to type the password twice for validation and authentication. How can I disable it?

Answer 1

For the sake of Rails 4 users who find this question, simply delete :password_confirmation from the permitted params, which you declare in ApplicationController.rb.

before_filter :configure_permitted_parameters, if: :devise_controller?

protected

def configure_permitted_parameters
  devise_parameter_sanitizer.for(:sign_up) do |u|
    u.permit(:username, :email, :password)
  end
  devise_parameter_sanitizer.for(:account_update) do |u|
    u.permit(:username, :email, :password)
  end
end