Rails - redirection problem

There is many users available in my project. Each user have different home page. And also i have a default home page. My actual code is here..

requested_url = "/limited/username"  #It is constantly changing.  
redirect_to(requested_url || :action => "index", :controller => "demo")

So, it redirect the page like this http://localhost:3000/demo/index?%2Flimited=username. But, actually i need the redirected url like this http://localhost:3000/limited/username.

If the requested_url is empty then, it redirects correctly. (http://localhost:30开发者_开发百科00/demo/index). But, if its not empty then, it redirects wrongly.

Please tell me what is the problem here?.

|| has higher operator precedence than =>, so your redirect call is interpreted as

redirect_to( (requested_url || :action) => "index", :controller => "demo")

Try this instead:

redirect_to( requested_url || {:action => "index", :controller => "demo"})

Obviously I'm not privy to the exact details of what you're trying to do here, but you might be able to do something like this:

before_filter :redirect_to_requested_url, :if => :requested_url_supplied?

def redirect_to_requested_url
  redirect_to ... get requested url somehow ...
end