Errata

proquest.safaribooksonline.com the example 3-2 table list is missing the location of scripts to be run with script/runner and lists app/views/layoutsapp/views/physical which is clearly a typo. I am very confused with regards to how to read this.

Note from the Author or Editor:
This is correct. Below, app/models/logical there should be another entry app/models/utility.

Further, on page 40 (print edition) under #3, the code sample should read:

module Utility
class Emailer
def self.run(params)
# original code goes here
end
end
end

In other words, remove the "module Physical" and the corresponding "end".