From: Rob Biedenharn <Rob@...>
Date: 2008-02-22T00:28:08+09:00
Subject: Re: Code Reduction


On Feb 21, 2008, at 10:14 AM, Arlen Cuss wrote:

> Hiya,
>
> On Fri, Feb 22, 2008 at 2:07 AM, Jigar Gosar <jigar.gosar@gmail.com>  
> wrote:
>
>> The "if v" can be removed, cause if the key exists than there is no
>> problem in rendering its value.
>
> Good point, I'm asleep!
>
> Thanks a lot, that was a really quick reply.
>
> No problems.
>
>
>> I just love ruby, cause so much can be expressed in so less.
>
> You're absolutely right. :) I recently read a good article to this  
> effect:
> "Do not learn Ruby"
> http://webmat.wordpress.com/2008/02/20/do-not-learn-ruby/. It's a  
> fun read.
>
> Cheers,
> Arlen.


Or put one of these in your application_helper (not both, or combine  
them yourself) (Apologies for the inevitable email wrapping ;-)

module ApplicationHelper

   COLORS = Hash.new('#ff0000').merge!({ :notice => '#00ff00',
                                         :warning => '#ff9900',
                                         :error   => '#ff0000',
                                       }) unless const_defined? 'COLORS'

   # Shows the flash message(s) with a highlight effect
   def flash_div(*keys)
     keys.collect { |key|
       content_tag(:div, flash[key],
                   :id => "#{key}",
                   :class => "flash") if flash[key]
     }.join +
       keys.collect { |key|
       javascript_tag(visual_effect(:highlight, "#{key}",
                                    :startcolor => "'#{COLORS[key]}'",
                                    :endcolor   => "'#ffffff'")) if  
flash[key]
     }.join
   end

   # Shows the flash message(s), but they go away when clicked.  An  
options hash will be applied to a surrounding div tag.
   def flash_div(*keys)
     return '' if keys.blank?
     options = { :id => 'flash' }
     options.update(keys.pop) if keys.last.is_a? Hash
     content_tag(:div,
                 keys.collect { |key|
                   content_tag(:div,
                               flash[key], :id => "#{key}- 
flash", :class => "#{key} section",
                               :onClick => "new Effect.Fade(this);")  
if flash[key]
                 }.join,
                 options)
   end


end

And then in your views (or layout):

       <%= flash_div :notice, :warning, :error -%>

Then toss in some CSS to taste and serve warm.

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob@AgileConsultingLLC.com