Devise sign up either by email or by mobile number

Question

I can register a user getting both email address and mobile number in my application. But what I really want is to register user using either email or mobile as a primary authen

Answer 1

Yes, you can do easily with minor setting.

like this

Modify your application_controller.rb

class ApplicationController < ActionController::Base
  before_action :configure_permitted_parameters, if: :devise_controller?

  protected

  def configure_permitted_parameters
    added_attrs = [:mobile_no, :email, :password, :password_confirmation, :remember_me]
    devise_parameter_sanitizer.permit :sign_up, keys: added_attrs
    devise_parameter_sanitizer.permit :account_update, keys: added_attrs
  end
end

Create a login virtual attribute in the User model

Add login as an attr_accessor:

  # Virtual attribute for authenticating by either username or email
  # This is in addition to a real persisted field like 'username'
  attr_accessor :login
or, if you will use this variable somewhere else in the code:

  def login=(login)
    @login = login
  end

  def login
    @login || self.mobile_no || self.email
  end

Modify config/initializers/devise.rb to have:

config.authentication_keys = [ :login ]

You can refer this link for more reference.

https://github.com/plataformatec/devise/wiki/How-To:-Allow-users-to-sign-in-using-their-username-or-email-address