Copyright © 2012 helion
Authorized translation of the English edition of Rails Cookbook © 2007 O’Reilly Media, Inc.
This translation is published and sold by permission of O’Reilly Media, Inc., the owner of all rights to publish and sell the same.
Polish language edition published by Helion S.A.
Copyright © 2008
All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording or by any information storage retrieval system, without permission ...