From: Justin Collins <justincollins@...>
Date: 2008-05-01T13:03:14+09:00
Subject: Re: Need help converting PHP to Ruby / eRuby

James Nykiel wrote:
> Jano Svitok wrote:
>   
>> On Wed, Apr 30, 2008 at 10:08 PM, James Nykiel wrote:
>>     
>>> Hi,
>>>
>>>  I am new to Ruby / eRuby templating and need some help converting from
>>>  PHP, I have two web pages that do what I need using PHP but I can figure
>>>  out how to do the same with Ruby / eRuby templating, could  someone
>>>  please have a look and guide me?
>>>
>>>  What seems to be happening is that the Ruby / eRuby variable? $file is
>>>  being set to menu.rhtml while the PHP variable? $file is being set to
>>>  index.php, which is what I want the Ruby / eRuby to do also.
>>>       
>> Hi,
>>
>> try using ENV['SCRIPT_FILENAME'] or $0 instead of __FILE__.
>>
>> __FILE__ is always the name of *current* file (i.e. the one being 
>> parsed).
>> $0 is the name of the "started" file (the one that was started from 
>> outside).
>> SCRIPT_FILENAME is CGI variable.
>>
>> Note: not tested, just hints.
>>
>> Jano
>>     
>
> Jano,
>
> Thanks for the hint, got it working!
>
> This is the change that I made to make things work the way I needed.
>
> ## Ruby / eRuby ##
>
> # menu.rhtml
> # Menu item name is non-link if page name is the same as menu item name,
> if not then menu item name is link.
>
> <%
>
> fname = File.basename ENV['SCRIPT_FILENAME']
>
> if fname == 'index.rhtml'
> puts 'Home &nbsp;&nbsp;::&nbsp;&nbsp;'
>
> else
> puts '<a href="index.rhtml" title="Home">Home</a> 
> &nbsp;&nbsp;::&nbsp;&nbsp;'
> end
>
> %>
>
>   

I think the more typical way to do this is more like

<%

fname = File.basename ENV['SCRIPT_FILENAME']

if fname == 'index.rhtml' %>
   Home &nbsp;&nbsp;::&nbsp;&nbsp;
<% else %>
   <a href="index.rhtml" title="Home">Home</a>&nbsp;&nbsp;::&nbsp;&nbsp;
<% end %>


-Justin