http://snippets.dzone.com/posts Sun, 27 Jul 2008 07:24:41 GMT DZone Snippets: hash code http://snippets.dzone.com/posts/show/2216 This method is for use in conjuction with the Ruby on Rails Module <a href="http://api.rubyonrails.com/classes/ActionView/Helpers/PrototypeHelper.html">ActionView::Helpers::PrototypeHelper</a>. <br /> <br />The options hash takes any number of key/value pairs the key becomes the name of the parameter passed in the with value and the value becomes a javascript expression <br /> <br />key — name of the parameter <br />value — a fragment of javascript that will be the value of the parameter <br /> <br />Example <br /><pre>>> params_for_with(:clean_range => 'clean_range', :raw_range => 'raw_range', :total_count => 'total_count') <br />=> 'total_count=' + total_count + '&' + 'clean_range=' + clean_range + '&' + 'raw_range=' + raw_range</pre> <br /> <br />Don‘t forget you won’t necessarily get the parameters out in the same order you put them in, such is the nature of hashes <br /> <br /><code> <br />def params_for_with(options = {}) <br /> options.collect { |param_name, js_fragment| "'#{param_name}='+#{js_fragment}" }.join("+'&'+") <br /> # or this one <br /> #options.stringify_keys.collect { |param_name, js_fragment| '"' << param_name << '="+' << js_fragment }.join('+"&"+') <br />end <br /></code> Sun, 18 Jun 2006 20:52:07 GMT http://snippets.dzone.com/posts/show/2216 sporkyy (Todd Sayre)