How to pass a collection to a controller's action(not by GET)

I'm working with Ruby on rails 2.3.8 and the idea is to implement a "Sort" functionali开发者_JAVA百科ty for search results.

I've got the view(this is a part of it):

<span>Sort by:</span>&nbsp;&nbsp; <%=  link_to 'MORE RELEVANT', search_filter_relevance_path %>

Routes file:

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

and the controller's action(doing nothing so far):

  def search_filter_relevance
    raise params.inspect
  end

As its a search of announcements, I'd like to pass the collection of its results to the controller's action so it filters them, and not all the announcements.

How can I do that?

Your question is kind of incomplete. It would have been great if you could provide the details of the entire controller code. Still i will try answering it. A better approach would be to pass the "search term" itself. Say the search term was stored in an instance variable @search.

Your link_to should be:

<%= link_to 'MORE RELEVANT', search_filter_relevance_path(:search => @search) %>

And your route should be:

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

and your action:

def search_filter_relevance
  #You can access the search term using params[:search] and then reproduce the search results in a filtered form!
  #Example: If you using acts_as_solr to search your table(s).. (Can be applied to any other FTS plugin)
  #This sorts the results in ascending order
  #@result = Model.find_by_solr(params[:search], :order => "created_at ASC")
end