From: Michael Fellinger <m.fellinger@...>
Date: 2006-05-15T13:37:47+09:00
Subject: Re: Mapping a String to Properties - A Better Way?

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

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