Howto Overwrite existing Ruby Class via Rails app?


Hello Everyone,

in the 1.8/usr/lib/ruby/1.8/date/format.rb file there is the following

class Date

module Format # :nodoc:

  'january'  => 1, 'february' => 2, 'march'    => 3, 'april'    =>

‘may’ => 5, ‘june’ => 6, ‘july’ => 7, ‘august’ =>
‘september’=> 9, ‘october’ =>10, ‘november’ =>11, ‘december’

How can I “overwrite” these values via my rails app? I’m trying to
submit a foreign date to the database, so I want to overwrite
(translate) this piece out of the format.rb file in my rails app, so
that it understands which month I’m talking about.

Any suggestions/tips how I can fix this in a smart/efficient way?

Many Thanks in advance!


Look for Rails i18n helpers, they do what you’re looking for.

Maurício Linhares (pt-br) |


No that’s not the problem, in fact I’am using I18n. But that only
works for translating /localizing your data from the database.
But now I’m trying to Post data to the database. So for instance, if I
would have a form with a text field: date_attended (<%=
f.text_field :date_attended%> and would post the following ‘SPANISH’
date to the database: 10 Abril 2009 (-> which is April 10, 2009 in
English) The database won’t understand this.

So therefore I need to change this file: 1.8/usr/lib/ruby/1.8/date/
format.rb, because when I do that it works, but I want to do it via my
rails app. I want to overwrite it there, but have no idea how. I was
also thinking of maybe translating the months in the model itself, so
that the database understands which month I’m talking about. But also
I have no idea how to implement this in my code. I need (code)samples/
guidance, any suggestion is welcome.

On May 31, 11:19 pm, Maurício Linhares removed_email_address@domain.invalid


create a new file under /lib directory … i.e /lib/format.rb
then overwrite from the file

class Date
module format
MONTHS = { } # overwrite here

overwriting a constant will result a warning!