From: "Esteban Manchado Velázquez" <zoso@...>
Date: 2005-04-23T08:25:22+09:00
Subject: RoR has_and_belongs_to_many association

Hi all,

   I'm writing a small RoR application to make a presentation (I'll publish
the LaTeX/PDF slides and the app, but in Spanish), and I'm using the
has_and_belongs_to_many association.

   I have this:

   - Table A and table B, associated with h_a_b_t_m
   - Table A_b with _additional fields_ (a_id, b_id, foo and bar)

The question is, how can I update the "foo" and "bar" values? When I call
a.bs, I can read the values of those fields, but updating doesn't seem to
work. It doesn't raise any exception, but doesn't update the database either.
What am I doing wrong? Is there any easy way to update the "foo" and "bar"
fields?

   Regards,

-- 
Esteban Manchado Vel�zquez <zoso@foton.es> - http://www.foton.es
EuropeSwPatentFree - http://EuropeSwPatentFree.hispalinux.es