gurix

1	x0: 1	x1: 0	x2: 1	desired: 1	current: 0	w0: -0.4 	w1: 0.5 	w2: -0.4 	sum: -0.8
 	 	 	 	 	 	 	 	w0: -0.1 			w2: -0.1 	
2	x0: 0	x1: 1	x2: 1	desired: 1	current: 1	w0: -0.1 	w1: 0.5 	w2: -0.1 	sum: 0.4
3	x0: 1	x1: 1	x2: 1	desired: 1	current: 1	w0: -0.1 	w1: 0.5 	w2: -0.1 	sum: 0.3
4	x0: 0	x1: 0	x2: 1	desired: 0	current: 0	w0: -0.1 	w1: 0.5 	w2: -0.1 	sum: -0.1
5	x0: 1	x1: 0	x2: 1	desired: 1	current: 0	w0: -0.1 	w1: 0.5 	w2: -0.1 	sum: -0.2
 	 	 	 	 	 	 	 	w0: 0.2 			w2: -0.4 	
6	x0: 0	x1: 1	x2: 1	desired: 1	current: 1	w0: 0.2 	w1: 0.5 	w2: -0.4 	sum: 0.1
7	x0: 1	x1: 1	x2: 1	desired: 1	current: 1	w0: 0.2 	w1: 0.5 	w2: -0.4 	sum: 0.3
8	x0: 0	x1: 0	x2: 1	desired: 0	current: 0	w0: 0.2 	w1: 0.5 	w2: -0.4 	sum: -0.4

gurix

class OmniauthCallbacksController < Devise::OmniauthCallbacksController
  def twitter
    handle_redirect('devise.twitter_uid', 'Twitter')
  end

  def facebook
    handle_redirect('devise.facebook_data', 'Facebook')
  end
  
  private

gurix

DROP TABLE IF EXISTS survey_sessions;
-- Imagine a table with survey sessions
-- token: some id or token to access a survey
-- answers: a key value store for answers
CREATE TABLE survey_sessions (
  token text,
  answers hstore);

-- We need some data to play with
INSERT INTO survey_sessions (token, answers) VALUES ('9IaxxP', 'a=>1, b=>2');