Rails - Aug 2009 - a few quick newbie questions

(posted this in Ruby mistakenly, reposting here)
Hi

A few things I''m wondering - if anyone can answer without too much
trouble!  (I know if I google enough I could learn what''s going on..)

I''m trying to make a string of url parameters, like this:
"&#{unless category_name.nil?; ''category='' +
category_name; end}"
and like that for about three different variables.  Is there a faster
way?

Is there anything detrimental to using lots of partials or nested
partials?  Does each one mean the sever has to open another file every
time its not cached - and so slow things down?

I have a partial which makes some ajax tabs.  This (for reasons
currently beyond me!) means that the authenticity token changes, giving
the ActionController::InvalidAuthenticityToken error.  One suggested fix
is to only protect put/delete/update, but that seems undesirable.  Do I
want to be useing with => authenticity_token here?  how?

Thanks in advance!!
--Peter
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Peter Ehrlich wrote:
> (posted this in Ruby mistakenly, reposting here)
> Hi
> 
> A few things I''m wondering - if anyone can answer without too much
> trouble!  (I know if I google enough I could learn what''s going
on..)
> 
> I''m trying to make a string of url parameters, like this:
> "&#{unless category_name.nil?; ''category='' +
category_name; end}"
> and like that for about three different variables.  Is there a faster
> way?
Why are you doing this?  It is usually better to pass options to link_to 
or url_for, and let Rails take care of encoding the query string.  There 
are also some URL encoding methods that you can call directly if 
necessary -- check the docs.

I can''t really say enough about your other two questions to make an 
answer worthwhile.  Welcome to the Rails community!

Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org
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