We try to keep our books accurate, but sometimes mistakes creep in. This page lists the errors submitted by our astute readers. If you've found a new error, please submit it.

The latest version of the book is P1.0, released almost 6 years ago. If you've bought a PDF of the book and would like to upgrade it to this version (for free), visit your home page.

Key: Typo Tech. Error Suggestion Not a problem Next edition

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(To find out what version you have, look at the copyright page, a few pages in from the front of the book. If it says (say) 'Second Printing', then here it'll be P2.0. If there are interim PDF releases in that printing, they'll be 2.1, 2.2, and so on.)

PDF Paper Description Found in Fixed in
37

#39178: "install the ruby-opendid gem" should be "install the ruby-openid gem"

P1.0
11-May-09
38

#39179: In the Users migration, the line

'User.create(:name => 'maik', :password => "t0p$ecret")'

fails. Delete the line.

P1.0
11-May-09
39
#39180: A sessions view is offered, but the matching changes to the routes.rb file are not made, so these files are not used. Include the use of "m...more...
P1.0
11-May-09
254
#35272: Introducing the OrderHandler comes as a surprise to me. I use ActiveMessaging in production, and the first thing I thought was, why the heck w...more...
B2.0
15-Oct-08