Rails - Nov 2006 - Date.today throws Invalid Date error only within Rails

I have a weird problem.  I have this code in a helper class to the
view:

    today=Date.today

and this throws an exception with the message "invalid date" and the
stack trace being:

/usr/local/lib/ruby/1.8/Date.rb:591:in `new0''
/usr/local/lib/ruby/1.8/date.rb:703:in `today''

Of course, this works outside Rails.  Any suggestions why this happens
inside Rails?


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I have been able to re-create this quite easily in both OS X and in windows.
[I thought it could be something to do with incompatible ruby versions in OS
X].

So, to reproduce this, all I have to do is this:

- Create a new rails app
- Create a dummy controller
- Create a dummy index method which does this:

    def index
        @today=Date.today
      end
- Create a dummy index.rhtml view which prints @today.

This works.

Now to break it, all I have to do is

- add require "Date" [capital "D", require "date"
works correctly]

It fails immediately at the Date.today line with an invalid date error.
Before it fails, it dumps the following in the cmd prompt where webrick is
running:

c:/ruby/lib/ruby/1.8/Date.rb:238: warning: already initialized constant
MONTHNAM
ES
c:/ruby/lib/ruby/1.8/Date.rb:243: warning: already initialized constant
DAYNAMES

c:/ruby/lib/ruby/1.8/Date.rb:247: warning: already initialized constant
ABBR_MON
THNAMES
c:/ruby/lib/ruby/1.8/Date.rb:250: warning: already initialized constant
ABBR_DAY
NAMES
c:/ruby/lib/ruby/1.8/Date.rb:254: warning: already initialized constant
ITALY
c:/ruby/lib/ruby/1.8/Date.rb:258: warning: already initialized constant
ENGLAND
c:/ruby/lib/ruby/1.8/Date.rb:262: warning: already initialized constant
JULIAN
c:/ruby/lib/ruby/1.8/Date.rb:266: warning: already initialized constant
GREGORIA
N

In my real app, however, I do not do a require "Date" - so I have no
clue
what is happening :(.

Any ideas?


On 11/14/06, Anand Sankaran
<anand.sankaran-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>
> I have a weird problem.  I have this code in a helper class to the
> view:
>
>     today=Date.today
>
> and this throws an exception with the message "invalid date" and
the
> stack trace being:
>
> /usr/local/lib/ruby/1.8/Date.rb:591:in `new0''
> /usr/local/lib/ruby/1.8/date.rb:703:in `today''
>
> Of course, this works outside Rails.  Any suggestions why this happens
> inside Rails?
>
>

-- 
anand

Photo gallery: http://www.anands.net
Photo blog: http://blog.anands.net


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