url-helper

I have this link: <a href="<?php echo $this->url(array('controller'=>'index','action'=>'form'),NULL,TRUE);?>"> Form </a> With this I get something like: http://foo.com/form I need to pass a param to the URL with this link. So that I can have something like this instead: http://foo.com/form?bar=1231 How can we accomplish this ? Thanks in advance. The URL view helper is used to create links using the Routes setup with your application. If you aren't following the routes setup, then there isn't much point in using the view helper, and instead you could just append the created url you got from the

I'm writing a ruby-on-rails library module: module Facets class Facet attr_accessor :name, :display_name, :category, :group, :special ... URI = {:controller => 'wiki', :action => 'plants'} SEARCH = {:status => WikiLink::CURRENT} #Parameters is an hash of {:field => "1"} values def render_for_search(parameters) result = link_to(display_name, URI.merge(parameters).merge({name => "1"})) count = WikiPlant.count(:conditions => (SEARCH.merge(parameters.merge({name => "1"})))) result << "(#{count})" end end ... end when I call render_for_search I get the error undefined method 'link_to' I've tried