partials with action methods?

I have a pretty standard partial for my sidebar that I want to display the login form etc if the user is not logged in and if they are then display the relevant links.

As far as I can tell, calling render :partial does not trigger methods in the controller class. So how do I get application data into the partial.

The partial is invoked by the layout, which doesn't have access to controller functions so they only way I can see around this is to create the required objects in a befor_filter.

Is there a more elegant way to do this? without render_component?

The partial is invoked by the layout, which doesn't have access to controller functions so they only way I can see around this is to create the required objects in a befor_filter.

Yeah - use a before filter to load the data you need for the sidebar, then use a helper or partial to display it.

Steve