Is there a way to set a global variable in my deploy

Rails Deployment
1

I am deploying an application to several sub domains and need to set a
global variable in each sub domain so that I query the correct table
based on the sub domain. Currently I am doing this in my layouts but
this doesn’t seem like a good practice.

Does anyone know of a way to set this global variable when I deploy
using capistrano?

2

On Mon, 2008-02-25 at 20:19 +0100, Lucas Campbell wrote:

I am deploying an application to several sub domains and need to set a
global variable in each sub domain so that I query the correct table
based on the sub domain.

Hm, sounds like something you could do in a controller - just check the
“Host” header of the incoming HTTP request.

Yours,

tom

3

Tom C. wrote:

On Mon, 2008-02-25 at 20:19 +0100, Lucas Campbell wrote:

I am deploying an application to several sub domains and need to set a
global variable in each sub domain so that I query the correct table
based on the sub domain.

Hm, sounds like something you could do in a controller - just check the
“Host” header of the incoming HTTP request.

Yours,

tom

I actually created a helper method that uses url_for to grab the url and
find out which subdomain its in and then set the global variable
accordingly.

I can’t access helper methods from my controller so I am using my layout
to call my helper method which sets the global varialbe. Only thing is,
since i call the helper from my layout, it is being called every time a
page is rendered.

I wanted to find a way to add something in my deploy.rb file to call the
helper method once so the global is set.

4

On Mon, 2008-02-25 at 20:49 +0100, Lucas Campbell wrote:

helper method once so the global is set.
Ah, I see. You could do an after :update_code task that appends a
variable declaration to your environment.rb file or puts a file in
shared/system/… hm, I wonder if you could just look at your RAILS_ROOT
from within the app and key off the directory names embedded there?

Yours,

tom