Redirect to Page after Facebook Sign Up

Question

I'm trying to Redirect a user after successful Facebook SIGN UP (not sign in).

I want to redirect to /getstarted/welcome after a user Registers for the first time .

My omniauth callback is :

def facebook
        # You need to implement the method below in your model (e.g. app/models/user.rb)
        @user ||=
            User.find_for_facebook_oauth(request.env["omniauth.auth"], current_user)

        if @user.persisted?
            # This will throw if @user is not activated
            sign_in_and_redirect @user, event: :authentication
            if is_navigational_format?
                set_flash_message(:notice, :success, kind: "Facebook")
            end
        else
            session["devise.facebook_data"] = request.env["omniauth.auth"]
            redirect_to new_user_registration_url
        end
    end

For devise i use

def after_sign_up_path_for(source)
  '/getstarted/welcome'
end

My User Model:

Facebook Settings

  def self.find_for_facebook_oauth(auth, signed_in_resource = nil)
    user = User.where(provider: auth.provider, uid: auth.uid).first
    if user.present?
        user
    else
        user = User.create(first_name:auth.extra.raw_info.first_name,
                                             last_name:auth.extra.raw_info.last_name,
                                             facebook_link:auth.extra.raw_info.link,
                                             user_name:auth.extra.raw_info.name,
                                             provider:auth.provider,
                                             uid:auth.uid,
                                             email:auth.info.email,
                                             password:Devise.friendly_token[0,20])
    end
end

Can someone help me set this up ?

Answer 1

I solved it by adding to my User model

attr_accessor `just_signed_up`

and setting it in User.find_for_facebook_oauth in this part of the block where I create a new user ( first_or_create block).

EDIT: more explanation

So in Ruby (not Rails) there is a class method/macro called attr_accessor (actually theres also attr_reader and attr_writer , attr_accessor is a shorthand for calling the other two)

If you, in your User model write

class User
  attr_accessor :some_attribute

then you're able to perform

u = User.first
u.some_attribute = 'asdf'
u.some_attribute # => 'asdf'

but this attribute is not going to be saved to DB, so it may be used as a temporary storage of some value in Rails model.

Another thing to know is that there are only two "values" that are false in Ruby, those are false and nil .

Using those two tricks you may create a new user and temporarily set this flag on the object

u = User.create u.just_signed_up = true u.just_signed_up # => true u.reload! # fetches record from DB u.just_signed_up # => nil

and since nil is false, this check will fail for every user except for ones you just created!