Errata for Rails for .NET Developers

#36470: The ruby command is two lines but is not highlighted on the second line. This was very misleading, and caused me to have to go back and painfully correct my mistake.--Adrian Anttila

#35394: After adding the new column with rake db:migrate, the text says to add the new field to the existing view pages. It says to "Open app/views/new.html.erb" which doesn't exist. It should say "Open app/views/books/new.html.erb"--Mike Admire

#36206: The sentence on PDF p29 "Using the same technique, you should also go ahead and enhance app/views/NEW.html.erb in the same way." should presumably reference app/view/EDIT.html/erb instead.--Chris Kapilla

#35301: On PDF page 35 under section 2.3, the following ruby code is sampled:

puts "\t#{5*10}"

and the result in the book is said to be

500

when the true result is (clearly)

50--Jeff Harrington

#35347: The first line of output in the flight example is actually the first line of code – flight = "United Airlines, Flight #312, ORD to LAX, 9:45AM to 11:45AM"--Andrew Gaskell

#36484: The List<> type is a collection, not an array. Either the text needs to be updated to note the distinction, or an actual array should be used in the C# code examples.--Adrian Anttila

#48616: In the second paragraph of 3.1 Working with Collections and Iterators you state "...we may way want to synthesize an entirely new data set containing only those elements that meet certain criteria." The word "way" shouldn't be there. --Amanda

#35356: The text/symbol "&gt;" appears twice in the example of the generate script:

c:\dev\flight&gt; ruby script\generate model flight

c:\dev\flight&gt; ruby script\generate controller flights--Jeff Harrington

#35357: The text/symbol "&gt;" appears twice on this page in the example of the scaffold generate:

c:\dev\&gt; rails flight

c:\dev\flight\&gt; ruby script\generate scaffold flight--Jeff Harrington

#37466: "This additional line of code with result in a standard error message displayed inline," should read "This additional line of code *will* result in a standard error message displayed inline,"

--Mark Cohen

#35482: Few things on this page:

"header and footer to our views" - there isn't really a footer being added. There's a header and you're styling the content.

It's also unclear if the flights_enhanced layout's header's id is set correctly. If it is set correctly I think you should add styling for this element in scaffold.css. This would make your intentions clearer (the reader would have a visual confirmation).

There's a lot of issues with the downloadable code in this section. Layouts render as html in my browser and a lot of it contains markup (<%# START_HIGHLIGHT %>, <%# END_HIGHLIGHT %>, etc).--Andrew Gaskell

#37226: Context:
----------------
Using a third-party gem from within your Rails code is dirt simple. Rails
knows to activate the RubyGems environment when it starts up, so all
you have to do is tell Rails which Rails your application depends upon.
You’ll then need to decide whether you want to bundle a copy of each

Description:
------------
the second line (bottom to top) of the las paragraph should say: "so all
you have to do is tell Rails which Gem" instead of "so all
you have to do is tell Rails which Rails"--Ganso de Soya