link_to for calling an action, instead of a button_to

I'd like to call an action with a link_to button without being redirected to another page(I don't want ajax). For you to have an idea, I'm trying to accomplish a sort "link button" in a search page. So, when the link is clicked, the page should be refreshed showing the list ordered as I tell it in the action.

If I do the following in my view, it will ask me for a template called as the action, and I don't want it:

<%=  link_to 'M&Aacute;S RELEVANTES', search_filter_relevance_path %>

My routes f开发者_高级运维ile looks like this:

map.search_filter_relevance "/anuncios/buscar", :controller => 'announcements', :action => 'search_filter_relevance'

EDIT:

If I change the above line to:

map.search_filter_relevance "/anuncios/search_filter_lowest_price", :controller => 'announcements', :action => 'search_filter_relevance'

it access to the action I want it to access, but I can't figure out a way to pass the collection of items I have in the view(it's a search result) to the action, so I can filter them.

And my controller looks like this(I haven't developed the functionality yet):

  def search_filter_relevance

  end

Any help on this will be appreciated.

I believe you should define what you'll render... an action, a partial, nothing?

def search_filter_relevance
   render :action => "some_action"
   # or
   render :partial => "some_partial"
   # or
   render :nothing => true
end 

Something like that...

Maybe you could explain what you want this action to do exactly...