How does sign_in_and_redirect in devise work?

问题:

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

This method is present in the facebook omniauth callbacks controller. The problem that I am facing is that I do not get the user's phone number from facebook and thus @user is not a valid object (I have a validation). So, I want to redirect the user to another page where I can ask for the phone number.

How can I modify the sign_in_and_redirect @user to redirect me to that page and not the root url.

回答1:

Sign_in_and_redirect method uses after_sign_in_path_for method to determine where to redirect the user after sign in.

You can easily customize your after_sign_in_path_for method to check for the phone presence and either call super or redirect to the page where user can enter their phone number.