Rails - Jan 2006 - How do you get link_to to work correctly when using subdomains as account keys?

When using subdomains as account keys (as per this HowTo:
http://wiki.rubyonrails.org/rails/pages/HowToUseSubdomainsAsAccountKeys),
how can you get link_to to spit out the correct URL (i.e.
account123.domain.com)?

<%= link_to "My Account", { :action => "show", :id
=> "account123" }
%> would generate "http://www.domain.com/show/account123"

I don''t have any special routes setup (in routes.rb), but I
don''t
think that would help for this purpose.

Thanks,
Sean

On Jan 18, 2006, at 7:45 AM, Sean Mountcastle wrote:
> When using subdomains as account keys (as per this HowTo:
> http://wiki.rubyonrails.org/rails/pages/ 
> HowToUseSubdomainsAsAccountKeys),
> how can you get link_to to spit out the correct URL (i.e.
> account123.domain.com)?
>
> <%= link_to "My Account", { :action => "show",
:id => "account123" }
> %> would generate "http://www.domain.com/show/account123"
>
> I don''t have any special routes setup (in routes.rb), but I
don''t
> think that would help for this purpose.
in ApplicationControllor:

   def url_for(options = {}, *params) # :nodoc:
     if options[:subdomain] then
       options[:only_path] = false
       host = []
       host << options.delete(:subdomain)
       host << @request.subdomains[1..-1] if @request.subdomains.size  
 > 1
       host << @request.domain
       options[:host] = host.join ''.''
     end

     return super(options, *params)
   end

-- 
Eric Hodel - drbrain@segment7.net - http://segment7.net
This implementation is HODEL-HASH-9600 compliant

http://trackmap.robotcoop.com

Eric,
> in ApplicationControllor:
>
>    def url_for(options = {}, *params) # :nodoc:
>      if options[:subdomain] then
>        options[:only_path] = false
>        host = []
>        host << options.delete(:subdomain)
>        host << @request.subdomains[1..-1] if @request.subdomains.size
>  > 1
>        host << @request.domain
>        options[:host] = host.join ''.''
>      end
>
>      return super(options, *params)
>    end
Thank you very much, though this breaks when using WEBrick (or Lighty
on a port other than 80) so I added the following after options[:host]
= host.join ''.''

      options[:host] = [ options[:host], @request.port ].join
'':''
unless @request.port == 80

It looks ugly, but it works.

Regards,
Sean