Asp Forum - Need help converting PHP to Ruby / eRuby

James Nykiel

4/30/2008 8:08:00 PM

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.

## PHP ##

# index.php
# Menu item name is non-link if page name is the same as menu item name,
if not then menu item name is link.

<?php

include("./menu.php");

?>

# menu.php
# Menu item name is non-link if page name is the same as menu item name,
if not then menu item name is link.

<?php

$path = ($_SERVER['SCRIPT_FILENAME']);
$file = basename($path);

if ($file == 'index.php') {
echo 'Home   ::  ';
}

else {
echo '<a href="index.php" title="Home">Home</a>
  ::  ';
}

?>

## Ruby / eRuby ##

# index.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.

<%

ERuby.import ('./header.rhtml')

%>

# 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.

<%

require 'pathname'
path = Pathname.new(__FILE__).realpath.to_s
file = File.basename path

if file == 'index.rhtml'
puts 'Home   ::  '

else
puts '<a href="index.rhtml" title="Home">Home</a>
  ::  '
end

%>
--
Posted via http://www.ruby-....

5 Answers

Jano Svitok

4/30/2008 9:16:00 PM

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

James Nykiel

4/30/2008 9:58:00 PM

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   ::  '

else
puts '<a href="index.rhtml" title="Home">Home</a>
  ::  '
end

%>

--
Posted via http://www.ruby-....

Justin Collins

5/1/2008 4:03:00 AM

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   ::  '
>
> else
> puts '<a href="index.rhtml" title="Home">Home</a>
>   ::  '
> end
>
> %>
>
>

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

<%

fname = File.basename ENV['SCRIPT_FILENAME']

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

-Justin

James Nykiel

5/2/2008 2:11:00 AM

Justin Collins wrote:

> James Nykiel wrote:
>>>>
>>> $0 is the name of the "started" file (the one that was started from
>> Thanks for the hint, got it working!
>>
>> %>
>>
>>
>
> I think the more typical way to do this is more like
>
> <%
>
> fname = File.basename ENV['SCRIPT_FILENAME']
>
> if fname == 'index.rhtml' %>
> Home   ::  
> <% else %>
> <a href="index.rhtml" title="Home">Home</a>  ::  
> <% end %>
>
>
> -Justin

Justin,

Thanks for the help with this, do you know if or how I can combine the
following:

## menu.rhtml

<% fname = File.basename ENV['SCRIPT_FILENAME']
if fname == 'index.rhtml' %>
Home   ::  
<% else %>
<a href="index.rhtml" title="Home">Home</a>   ::  
<% end %>

<% fname = File.basename ENV['SCRIPT_FILENAME']
if fname == 'contact.rhtml' %>
Contact   ::  
<% else %>
<a href="contact.rhtml" title="Contact">Contact</a>
  ::  
<% end %>

--
Posted via http://www.ruby-....

Jano Svitok

5/2/2008 7:08:00 AM

On Fri, May 2, 2008 at 4:11 AM, James Nykiel <lmv314@gmail.com> wrote:
> Thanks for the help with this, do you know if or how I can combine the
> following:
>
> ## menu.rhtml
>
> <% fname = File.basename ENV['SCRIPT_FILENAME']
>
> if fname == 'index.rhtml' %>
> Home   ::  
> <% else %>
> <a href="index.rhtml" title="Home">Home</a>   ::  
> <% end %>
>
> <% fname = File.basename ENV['SCRIPT_FILENAME']
> if fname == 'contact.rhtml' %>
> Contact   ::  
> <% else %>
> <a href="contact.rhtml" title="Contact">Contact</a>
>
>   ::  
> <% end %>

<%
def menu_item(current_filename, page_filename, page_title)
if current_filename == page_filename
page_title
else
"<a href=\"#{page_filename}\" title=\"#{page_title}\">#{page_title}</a>"
end
end

fname = File.basename ENV['SCRIPT_FILENAME']
%>
<%= menu_item(fname, "index.rhtml", "Home") %>   ::  
<%= menu_item(fname, "contact.rhtml", "Contact" %>   ::  

You can continue with storing the menu in an array, i.e.

<%
def make_menu(menu, separator)
fname = File.basename ENV['SCRIPT_FILENAME']
menu.map {|page_file, page_title| menu_item(fname, page_file,
page_title)}.join(separator)
end

MENU = [
['index.rhtml, 'Home'],
['contact.rhtml', 'Contact']
]
%>

<%= make_menu(MENU, "   ::   ") %>

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Need help converting PHP to Ruby / eRuby

James Nykiel

Jano Svitok

James Nykiel

Justin Collins

James Nykiel

Jano Svitok

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