Rails - Dec 2004 - Dispatcher? how to use long urls with slashes to call a controller

Hello rails,

  I have a controller called file with a method get that returns me a
  file from the db.

  want to do the following:
  
  When calling http://localhost:8080/file/get/11/hansi.txt i want that
  rails does the same as if i would call
  http://localhost:8080/file/get/11

  This i not the case. I get a 404.
  
  This is useful as this makes the filename in the browser downloading
  the file be hansi.txt

  I use mod_ruby - an as far as i could see dispatcher.cgi ist
  called. And this calls the
  ruby\gems\1.8\gems\rails-0.8.5\lib\dispatcher.rb#self.dispatch.

  Is this true?

  Is dispatcher.cgi even called when i call
  http://localhost:8080/file/get/11/hansi.txt ?

  Anyone tried the same?

  Sorry but i really donŽt know the control flow between apache and
  rails.
  
-- 
cheers,
 roman seidl                        
mailto:rot-hxbVNg70ZfReoWH0uzbU5w@public.gmane.org

On Mon, 13 Dec 2004 16:49:59 +0100, Roman Seidl
<rot-hxbVNg70ZfReoWH0uzbU5w@public.gmane.org>
wrote:
>   This is useful as this makes the filename in the browser downloading
>   the file be hansi.txt
This doesn''t directly answer your question, but you san always use the
HTTP ''Content-Disposition'' header to control this.

-- 
Regards,
John Wilger

-----------
Alice came to a fork in the road. "Which road do I take?" she asked.
"Where do you want to go?" responded the Cheshire cat.
"I don''t know," Alice answered.
"Then," said the cat, "it doesn''t matter."
- Lewis Carrol, Alice in Wonderland

On Dec 13, 2004, at 16:49 Uhr, Roman Seidl wrote:
> Hello rails,
>
>   I have a controller called file with a method get that returns me a
>   file from the db.
>
>   want to do the following:
>
>   When calling http://localhost:8080/file/get/11/hansi.txt i want that
>   rails does the same as if i would call
>   http://localhost:8080/file/get/11
>
>   This i not the case. I get a 404.
how should rails handle the 11 and hansi.txt arguments? what should
hansi.txt be passed as?

the reason that it doesn''t recognize it as a action execution though,
is this in the .htaccess

RewriteRule 
^([-_a-zA-Z0-9]+)/([-_a-zA-Z0-9]+)/([-_a-zA-Z0-9]+)/([0-9]+)$ 
/dispatch.cgi?module=$1&controller=$2&action=$3&id=$4 [QSA,L]

On Dec 13, 2004, at 4:49 PM, Roman Seidl wrote:
> Hello rails,
>
>   I have a controller called file with a method get that returns me a
>   file from the db.
>
>   want to do the following:
>
>   When calling http://localhost:8080/file/get/11/hansi.txt i want that
>   rails does the same as if i would call
>   http://localhost:8080/file/get/11
>
>   This i not the case. I get a 404.
I''m not sure if there is a standard way to do that other than to add 
your own handler to webrick or do a mod_rewrite rule in apache. The 
latter could convert your request to something rails understands ''under
the hood'' while the client still sees the original URL.

What I really like in Spring (www.springframework.org) is that they 
have abstracted the url mapping. For example you can use a handler to 
have mappings like this:

  /**/*.html -> Controller1
  /file/get/* -> Controller2

Or map Urls directly to bean names (named instances of a singleton 
controller).

Or map a request the way ruby does, where part of the request URL is 
mapped to a method on a Controller.

This way you are not tied in with what the framework gives you. And you 
can always add your own specialized handler mappings.

(This does require some sort of IoC container / configuration file, 
which Rails seems to be trying to avoid at all cost :)

  S.

Hello Florian,

FW> the reason that it doesn''t recognize it as a action execution
though,
FW> is this in the .htaccess

FW> RewriteRule 
FW> ^([-_a-zA-Z0-9]+)/([-_a-zA-Z0-9]+)/([-_a-zA-Z0-9]+)/([0-9]+)$ 
FW> /dispatch.cgi?module=$1&controller=$2&action=$3&id=$4 [QSA,L]

thanks for the proposal.
I just added the following:
RewriteRule ^download/([-_a-zA-Z0-9]+)/[-_a-z.A-Z0-9]*$ /file/get/$1 [QSA] [L]

so i can use http://myhost/download/11/hansi.txt

and now it works just fine

-- 
cheers,
 Roman                           
mailto:rot-hxbVNg70ZfReoWH0uzbU5w@public.gmane.org