Re: exclude an attribute from save

Enrico Teotti
Mon, 07 Mar 2005 18:17:38 -0000

I''ve tried without luck this solution... I''ve still got  the
error on
the .save method... telling the column violates not-null constraint.
It''s still trying to insert that column on the save call.
Someone else has tried this solution on a problem like mine?
Thanks


On Mon, 7 Mar 2005 17:13:57 +0100, Raphael Bauduin
<rblists-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> On Mon, 7 Mar 2005 17:08:01 +0100, Enrico Teotti
<agenteo-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > Hi,
> > I''ve used .save to save the attributes, but on my table there
is an
> > autoincrementing id (not the primary key) that doesn''t need
to be
> > inserted... but save try to INSERT it anyway... is there a way to
> > avoid save from acting this way or to whisper him to be more polite
> > this time? ;)
> > Thanks,
> > Enrico
> >
>
> I just read this over at
> http://wiki.rubyonrails.com/rails/show/HowtoUsePostgresViewsAsTables .
>
> I havent tried it, just read it minutes before seeing your mail.
>
> Raph
>
> Active Record doesn''t have support for making columns read-only,
but
> you can simulate the effect by using attr_protected and defining empty
> writer methods:
>
> require ''active_record''
>
> class Quote < ActiveRecord::Base
>   attr_protected :score, :votes, :activity
>   def score=(ignored) end
>   def votes=(ignored) end
>   def activity=(ignored) end
> end
>
> > --
> > "The only thing necessary for the triumph of evil
> > is for good men to do nothing"
> >  Edmund Burke
> > _______________________________________________
> > Rails mailing list
> > Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> > http://lists.rubyonrails.org/mailman/listinfo/rails
> >
>


--
"The only thing necessary for the triumph of evil
is for good men to do nothing"
 Edmund Burke