From: coachhilton@...
Date: 2007-02-14T07:55:13+09:00
Subject: Re: Newb - uninitialized constant error

On Feb 13, 2:41 pm, "Steven R." <steverum...@comcast.net> wrote:
> I am a Newbie who has written some Ruby code - it actually works when
> 'all in one file'. To make it more re-usable and practice good coding
> style, I broke it into 2 - one for classes, one for test code. Call them
> 'Textractor.rb' and 'main.rb'.
>
> I've accepted that it is a simple error, but I can't track it down. I am
> posting so someone who has not stared at the code as long as I have may
> see right away what is evading me.
>
> I am working out of the 'Pickaxe' book, first edition, as a reference.
>
> I tried Google-ing the error message, but no dice.
>
> I also tried renaming the classes to include reference to the
> Textractor.rb. BTW - Textractor.rb is three classes wrapped up in
> 'module Textractor'.
>
> If I omitted any key info. needed to diagnose the problem, it's probably
> because I didn't recognize it as such, which in turn is probably where I
> went wrong.
>
> Many thanks.
>
> I keep getting the following error:
>
> main.rb:59: uninitialized constant Main::TextElement (NameError) from
> main.rb:56
>
> Now, TextElement is a properly named class in 'Textractor.rb'.
>
> My code is as follows:
>
> class Main
> require 'Textractor.rb'
>
> # Testing Logic Follows
> dateElement =
> Regexp.new(/(0[1-9]|1[012])[\/.](0[1-9]|[12][0-9]|3[01])[\/.]\d\d/)
> # Create a new document
> doc1 = TextDocumentPortrait.new("Document 1")
>
> THE LINE 56 BELOW GENERATES THE ERROR...:
>
> for count in 0...10
>
> # Create a new line, element and add the element to the line
> newLine = TextLinePortrait.new("Line " + count.to_s)
>
> ...IN REFERENCE TO THE FOLLOWING LINE 59:
>
> newElement = TextElement.new("Date", dateElement, "R")
> newLine.addElement(newElement)
>
> ...
>
> Code continues

I think we'd need to see all the code to be sure about the problem.
But since you mention that your code is wrapped in a module, you may
need to qualify references to its members, as in:

newElement = Textractor::TextElement.new("Date", dateElement, "R")
             ^^^^^^^^^^
Ken