The chdir line is almost certainly wrong - going to RAILS_ROOT would
be much more reliable.

I'm also unsure what a novice programmer is doing shelling out to a
2.5 year old version of Rake. Is there some reason why you're stuck on
0.7.3?

Hardcoding the path to the redirect is also incorrect - you'll
probably want something more like "redirect_to '/admin'", which will
work even if the app isn't running on localhost...

Finally, the entire premise here seems a little off - you haven't
mentioned what's in the cache dir that you want to clear out, but
there are much better ways of handling it in most circumstances. Take
a look at the framework docs for ActionController::Caching
(specifically, sweepers and friends).

--Matt Jones

On Aug 11, 1:33 pm, Michael Wright <[email protected]>
wrote:
> hello,
>
> I am new to programming and am trying to create a clear_cache method.
> This method is invoked when a submit button is pressed on a partial.
>
> def clear_cache
>     Dir.chdir('../../../../../') #This moves up to the appropriate
> directory
>     system('rake _0.7.3_ tmp:cache:clear')
>     redirect_to 'http://127.0.0.1:3000/admin'
>  end
>
> The method is certainly being invoked as the redirect is working fine,
> however, the method skips over the first two lines, no error messages
> are appearing but the cache is not being cleared. if this method is
> invoked in a seperate file in the same directory, using a call to the
> method and the f5 button, the cache is clearing.
>
> def clear_cache
>     Dir.chdir('../../../../../')
>     system('rake _0.7.3_ tmp:cache:clear')
>     redirect_to 'http://127.0.0.1:3000/admin'
> end
>
> clear_cache
>
> Am pretty confused as to why in our controller the first two lines are
> being skipped over and would greatly appreciate any help i recieve with
> this issue.
>
> regards,
> mike
> --
> Posted viahttp://www.ruby-forum.com/.
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