Rails - Jan 2010 - Session being lost before TwitterOauth callback

I''m building something like a multi-twitter-feed-manager, using the
TwitterOauth plugin to handle authorization with Twitter.  Before
redirecting to Twitter, I add some data to the session.  When Twitter
redirects to the callback, the session is empty.  Can anyone explain
this?

Here''s the controller.

class TwitterAuthorizationsController < ApplicationController
  def new
    @authorization = TwitterAuthorization.new
    @authorization.request
    @authorization.prepare_session session

    #this correctly prints out the session
    puts "TwitterAuthorizationsController#new session #
{session.to_json}"

    redirect_to @authorization.url
  end

  def callback
    #and here it''s empty
    puts "TwitterAuthorizationsController#callback session #
{session.to_json}"

    @authorization = TwitterAuthorization.new
    @authorization.authorize session

    @authorization.save
  end
end

And here''s the model:

class TwitterAuthorization < ActiveRecord::Base
  has_many :twitter_authentications

  def initialize
    @client = TwitterOAuth::Client.new(:consumer_key =>
''**********************'',:consumer_secret =>
''******************'')
  end

  def request
    @request_token = @client.request_token(:oauth_callback =>
''http://
0.0.0.0:3000/oauth_callback'')
  end

  def authorize session
    puts "DEBUG session #{session.to_json}"
    @access_token = @client.authorize(
                                      session[:request_token],
                                      session[:request_token_secret],
                                      :oauth_verifier => params
[:oauth_verifier])
    if @client.authorized?
      access_token = @access_token.token
      secret_token = @access_token.secret
    end
  end

  def prepare_session session
    session[:request_token] = @request_token.token
    session[:request_token_secret] = @request_token.secret
  end

  def url
    @request_token.authorize_url
  end
end



Thanks!

-Andrew

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