RailsBaseURI and relative_url_root

[ben.koski]

Does Passenger automatically set
ActionController::AbstractRequest.relative_url_root for rails
applications running under a RailsBaseURI directive?

I realized that in some applications, providing a "RailsBaseURI /
myapp" directive automatically sets the relative_url_root='/myapp'
without any sort of intervention in the app's environment.rb. In
other cases, this doesn't seem to work.

I grepped through the Passenger source and couldn't find any
references to relative_url_root or the RAILS_RELATIVE_URL_ROOT
environmental var. I also checked the ENV vars set in an app running
under a RailsBaseURI and it didn't sem to contain
RAILS_RELATIVE_URL_ROOT or SCRIPT_NAME.

[Rhett Sutphin]

Hi,

This is a bit of a late reply.

On Dec 5 2008, 12:05 pm, "ben.koski" <ben.ko...@gmail.com> wrote:
> DoesPassengerautomatically set

> ActionController::AbstractRequest.relative_url_root for rails
> applications running under a RailsBaseURI directive?

It does for Rails 2.1 and earlier, sort of. Under Rails 2.1 and
earlier, you could set the relative_url_root via an HTTP header and
Passenger did this (or seemed to). Under Rails 2.2, support for the
HTTP header was removed for some reason. ( Rails commit:
http://github.com/rails/rails/commit/a87462afcb6c642e59bfcd2e11e3351e2b718c38
) There's an open issue for this now:

http://code.google.com/p/phusion-passenger/issues/detail?id=169

> I realized that in some applications, providing a "RailsBaseURI /
> myapp" directive automatically sets the relative_url_root='/myapp'
> without any sort of intervention in the app's environment.rb. In
> other cases, this doesn't seem to work.

It may be that the applications which work automatically are Rails 2.1
(or earlier) and the ones that don't are 2.2.

Rhett