Rails - Oct 2006 - How-to Pretty URLs with Subdomain using mod_rewrite, request routing plugin

Does Rails 1.2 (EDGE) provide a native way to work seamlessly with
subdomains? For example, I would like the following incoming request to
be routed to the corresponding controller/action:
  http://sub1.domain.com/show => (:controller => sub1, :action => show)

I have been able to accomplish this using the "Request Routing" plugin
by specifying a subdomain condition.
  map.connect ''show'', :controller =>
''sub1'', :action => ''show'',
:conditions => {:subdomain => ''sub1''}

My first problem/question is will I have to map each action of a
subdomain/controller. Is there an easier way, possibly a one-liner?

My second problem is with the URLs generated by url_for and link_to
once the request has been directed to the correct controller/action.
How can one reverse the process? For example:
  url_for(:controller => sub1, :action => show) =>
http://sub1.domain.com/show

I also tried using Lighttpd''s mod_rewrite, but can''t get it to
work
either. When using the following config, rails routing cannot find
route, essentially the rewritten URL is not given to rails. For
example, when I request:
  http://sub1.domain.com:3000/show, Rails outputs the following:

no route found to match "/show" with
{:domain=>"domain.com",
:request_uri=>"/show", :protocol=>"http://", :accept
s=>"text/html,text/plain,text/sgml,video/mpeg,image/jpeg,image/tiff,image/x-rgb,image/png,image/x-xbitmap,imag
e/x-xbm,image/gif,application/postscript,*/*",
:remote_ip=>"10.0.9.36",
:method=>:get, :content_type=>nil, :po
rt=>3000, :subdomain=>"sub1"}

Any pointers will be greatly appreciated. Here is the relevant section
from config/lighttpd.conf:

$HTTP["host"] =~ "^(.+)\.domain\.com$" {
  fastcgi.server      = (".fcgi" =>
     ( "localhost" =>
      ( "min-procs"       => 1,
        "max-procs"       => 1,
        "socket"          => CWD +
"/tmp/sockets/fcgi.socket",
        "bin-path"        => CWD +
"/public/dispatch.fcgi",
        "bin-environment" => ( "RAILS_ENV" =>
"development" )
      )
     ))
  url.rewrite-once = ( "^(.*)$" => "/%1/$1" )
}

-pachl


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