gistfile1.rb

  def set_current_user
    if @signed_request
      if @signed_request['user_id']
        @current_user = User.find_or_initialize_by(id: @signed_request['user_id'])
        @current_user.token = @signed_request['oauth_token']
        if @current_user.new_record?
          @current_user.beard ||= Beard.new
          @current_user.fetch_info
        end
        @current_user.save
        session[:user_id] = @signed_request['user_id']
      else
        @redirect = oauth.url_for_oauth_code
        render :template => "shared/redirect", :layout => nil
      end
    elsif oauth.get_user_info_from_cookies(cookies)
      uid = oauth.get_user_info_from_cookies(cookies)['uid']
      session[:user_id] = uid
      @current_user = User.find_or_initialize_by(id: uid)
      if @current_user.new_record?
        @current_user.beard ||= Beard.new
        @current_user.save
      end
    elsif session[:user_id]
      session[:user_id] = session[:user_id]
      @current_user = User.find_or_initialize_by(id: session[:user_id])
    end
  end