[Rails] Avoid parsing URL in Apache conf?

[Tobias Luetke]

I personally like the mod_rewrite solution because it gives you low
level total control.
For example you can map subdomains to parameters for things like
"xal.mygallery.com".
However this is a special case and the rails philosophy is to make
common tasks easy, so i agree that we should look into moving it into
the framework.

As for mod rewrite: 
One good option to avoid having 3 sets of rules is to use the
RewriteBase parameter.
This also helps with non virtual hosting ( aliases ). 

example :

RewriteBase /dispatch.fcgi

RewriteRule ^([-_a-zA-Z0-9]+)/([-_a-zA-Z0-9]+)/([-_a-zA-Z0-9]+)$
?controller=$1&action=$2&id=$3 [QSA,L]
RewriteRule ^([-_a-zA-Z0-9]+)/([-_a-zA-Z0-9]+)$ ?controller=$1&action=$2 [QSA,L]
RewriteRule ^([-_a-zA-Z0-9]+)/$ ?controller=$1&action=index [QSA,L]


This can easily changed into 

RewriteBase /my/sub/directory/dispatch.rb

if required.

> Also, using mod_rewrite in a per directory setting is evil, and should,
> according to both Apache and mod_rewrite docs, be used only if there is
> absolutely no other alternative.

For which reason, Performance ?  



-- 
Tobi
http://blog.leetsoft.com