From: Tobias Reif <tobiasreif@...>
Date: 2001-06-03T19:44:52+09:00
Subject: [ruby-talk:16180] serverside eRuby and Ruby; setup and hosting

Hi;

I'm a newbie and I would appreciate tips that get me startet.

I want to use Ruby serverside. I got eRuby to run with my local Apache;

1. how can I require classes with eRuby?

Ruby code embedded in HTML .rhtml files gets processed without a
problem.
But: when I try to instantiate objects from classes that are not
contained in the file by writing
require "theclass"; I get a load error. I put .rb files with class code
in the same directory, and require them from embedded code in .rhtml
files; is that possible with eRuby?

Here is my code, which doesn't work, but gives 
(eval): No such file to load -- calc.rb (LoadError) 
: 
--------------
*.rhtml: 
--------
<html> 
... 
<% 
require 'calc.rb' 
num = Calc.new 
print num.half(8) 
%> 
... 
</html> 
----------------
calc.rb in the same dir: 
-----
class Calc 
def half(number) 
number / 2 
end 
end 
----------------
Also something like Time.new doesn't work, but I think I need to load
all the classes to the
server. 

But how to refer to them / use them from other .rhtml files? 

When the class is embedded too, it works; but I don't want to include
all classes in all files: 

<html> 
........
<% 
class Calc 
def half(number) 
number / 2 
end 
end 
%>
........
<% 
num = Calc.new 
print num.half(8) 
%>
...
</html> 

2. What are the advantages and limitations of eRuby?
Maybe it's better to install Ruby (not eRuby), and not use embedded
code?

3. Where can I get a cheap hosting account featuring Ruby? (or eRuby; or
both)

4. How to install Ruby (not eRuby) on Apache?

The following didn't work with my local Apache:

AddType application/x-httpd-Ruby .rb
Action application/x-httpd-Ruby "/cgi-bin/Ruby.exe"

5. Ruby in HTML

I would like to embed Ruby in XHTML (the current version of HTML), but
<% a = 4 %>
is not well-formed XML.
It would be nice, if eRuby would parse code embedded in
<?Ruby a = 4 ?>
like with PHP; this way, it can also be embedded in SVG, XML, etc.
How to embed it in a way that's well-formed XML?


Tobi

-- 
Tobias Reif
http://www.pinkjuice.com/myDigitalProfile.htm