From: Michael Trier <mtrier@...>
Date: 2006-05-15T18:25:04+09:00
Subject: Re: Mapping a String to Properties - A Better Way?

I forgot about parallel assignments.  I like that.  I'd probably keep
the regex or at least not alter the key as Dick stated.  I'd be
interested to know if it does make a difference.  Thanks.

Michael

On 5/15/06, Michael Fellinger <m.fellinger@gmail.com> wrote:
> maybe like that?
>
> params.each do |key, value|
>   key = key.split('_')
>   if key[0] == 'item_'
>     x, y, width, height = value.split
>     Item.update key, :x => x, :y => y, :width => width, :height => height
>   end
> end
>
> On Monday 15 May 2006 09:39, Michael Trier wrote:
> > I have a piece of code that works fine, but I'm wondering if there is
> > a better way to go about it. The method is receiving a hash (params)
> > and in that hash are a group of items named item_1, item_2, item_3,
> > and so on.  Each of these items contains a whitespace separated list
> > of values.  For instance:
> >
> > item_1 => "120 355 240 145"
> > item_2 => "130 400 100 100"
> >
> > These values map to x, y, width, and height properties on an object.
> >
> > Here's my code, but is there a better, more Ruby way to do this:
> >
> >     params.each do |key, value|
> >       if key =~ /^item_/
> >         a = value.split
> >         Item.update(key.split("_")[1],
> >
> >                                     :x => a[0],
> >                                     :y => a[1],
> >                                     :width => a[2],
> >                                     :height => a[3])
> >
> >       end
> >     end
> >
> > Thanks in advance for any pointers.
> >
> > Michael
>
> --
> Reporter:   "What would you do if you found a million dollars?"
> Yogi Berra: "If the guy was poor, I would give it back."
>
>