http://snippets.dzone.com/posts Sat, 26 Jul 2008 18:45:21 GMT DZone Snippets: serialize code http://snippets.dzone.com/posts/show/3823 // quick and dirty JOSN serializer <br /> <br /><code> <br />def jsonize(d) <br /> def surround(d, i=0); '' << '"[{'[i] << d << '"]}'[i]; end <br /> alias j jsonize; alias s surround <br /> if d.kind_of?(String) then s(d) <br /> elsif d.kind_of?(Symbol) then s(d.to_s) <br /> elsif d.kind_of?(Array) then s(d.collect {|v| j(v)}.join(', '), 1) <br /> elsif d.kind_of?(Hash) then s(d.to_a.collect { |v| "#{j(v[0])} : #{j(v[1])}" }.join(', '),2) <br /> # add support for other types of objects here if needed... <br /> else d.to_s; end <br />end <br /></code> Sun, 15 Apr 2007 13:48:52 GMT http://snippets.dzone.com/posts/show/3823 randomdan (Dan) http://snippets.dzone.com/posts/show/2426 Have you ever wanted to post from your javascript program to a Rails app so that the params are available to your application in a properly nested hash? Prototype makes this easy for form elements with it's Form Serializer, but it makes no provision for standard javascript objects. <br /> <br />Suffer no longer. With the following code you can serialize arbitrarily nested objects (eg, the sort of thing you get when you parse a JSON statement), so that it is ready to be posted via http to a Rails app. <br /> <br /><a href="http://jchris.mfdz.com/articles/2006/08/15/rails-style-recursive-javacript-object-serialization">The original Rails recursive Javascript object serializer.</a> <br /> <br /><code> <br />var serializer = { <br /> <br /> serialize : function(object) { <br /> var values = []; <br /> var prefix = ''; <br /> <br /> values = this.recursive_serialize(object, values, prefix); <br /> <br /> param_string = values.join('&'); <br /> return param_string; <br /> }, <br /> <br /> recursive_serialize : function(object, values, prefix) { <br /> for (key in object) { <br /> if (typeof object[key] == 'object') { <br /> <br /> if (prefix.length > 0) { <br /> prefix += '['+key+']'; <br /> } else { <br /> prefix += key; <br /> } <br /> <br /> values = this.recursive_serialize(object[key], values, prefix); <br /> <br /> prefixes = prefix.split('['); <br /> <br /> if (prefixes.length > 1) { <br /> prefix = prefixes.slice(0,prefixes.length-1).join('['); <br /> } else { <br /> prefix = prefixes[0]; <br /> } <br /> <br /> } else { <br /> value = encodeURIComponent(object[key]); <br /> if (prefix.length > 0) { <br /> prefixed_key = prefix+'['+key+']' <br /> } else { <br /> prefixed_key = key <br /> } <br /> prefixed_key = encodeURIComponent(prefixed_key); <br /> if (value) values.push(prefixed_key + '=' + value); <br /> } <br /> } <br /> return values; <br /> } <br />} <br /></code> <br /> <br />Usage: <br /> <br /><code> <br />payload = new Object; <br />payload.comment = new Object; <br />payload.comment.title = "The Title"; <br />payload.comment.body = "The body of the post."; <br />post_string = serializer.serialize(payload); <br /></code> <br /> <br />Result: <br /> <br /><code> <br />comment%5Btitle%5D=The%20Title&comment%5Bbody%5D=The%20body%20of%20the%20post. <br /></code> <br /> <br />Which gives you this in Rails: <br /> <br /><code> <br />params[:comment] #=> <br />{:title => "The Title", :body => "The body of the post."} <br /></code> Wed, 16 Aug 2006 08:13:13 GMT http://snippets.dzone.com/posts/show/2426 jchris (Chris Anderson)