Dir.chdir causes application error

rubyonrails-talk
1

I am getting an application error when I try to use Dir.chdir in a layout

<% Dir.chdir('public') %>

The complete dump from development.log is listed below.

When I try the same thing in the console, it works fine.

Loading development environment.

Dir.chdir('public')

=> 0

Any ideas on what the problem is, or how to fix it?

Thanks

Output from development.log

2

what do you get if do it like this:

<% Dir.chdir( "#{RAILS_ROOT}/public" ) %>

?

marcel

3

This produces the same error.

4

rails is looking for a session file relative to the current working directory, which is normally RAILS_ROOT. but when you did a chdir, you changed the current directory and now rails can't find the session file it wants.

answer is don't change the working directory. why would you need to?

5

meant to show an example

Loading development environment.

Dir.getwd

=> "/home/chall/MyApp"

Dir.chdir('public')

=> 0

Dir.getwd

=> "/home/chall/MyApp/public"

RAILS_ROOT

=> "script/../config/../config/.."

so now, if rails tries to load a file using RAILS_ROOT, it will look in

/home/chall/MyApp/public/script/../config/../config/..

instead of

/home/chall/MyApp/script/../config/../config/..