redirect for render_component

Hi,
  i am using
<%=render_component(:controller=>"mycontroller",:action=>"myaction")%>
on the view.

in my controller i am checking the conditions whether session is there
or not.
  if session is there i am rendering myaction view, otherwise i am
redirecting to login controller. but it rendering the login page again
instead of redirecting.can anybody help me.is it possible to redirect
for render_component?.

Thanks
Bala

Ditch the component. Whatever you're wanting to display with "myaction", work
it in to the view with partials or as the view itself.

A cleaner way of doing this is by using a before filter in "mycontroller".
Create an action that will check for the presence of session, and call it as
a before filter.

We'll call this action "check_for_session". In your controller, at the top,
put this:

  before_filter :check_for_session

Then, define the "check_for_session" action in your controller and stick your
session-checking logic in there. Simply use redirect_to on failures, which
will send users without sessions to the login page.

Problem solved. When "myaction" is called, the controller will run
check_for_session first. If check_for_session doesn't see any session, it
will redirect to the login page. Nice and clean.