ugly.rb

def create
  user = User.find_by_omniauth(request.env["omniauth.auth"])
  if user
    path = root_url
  else
    user = User.create_with_omniauth(request.env["omniauth.auth"])
    path = edit_user_path(user)
    session[:new_user] = true
  end
  session[:user_id] = user.id
  redirect_to path
end