stephanschubert’s gists

stephanschubert / cache_helper.rb

Created May 2, 2010 13:17

Rails Helper Module: Encodes the asset's timestamp into the request URL as directory which will be removed by Apache's mod_rewrite

	module CacheHelper
	#
	# Implements Google's "Leverage Proxy Caching" tip:
	# Instead of using a query parameter as cache buster -
	# encode it into the URL to ensure public proxies can
	# cache it too.
	#
	# NOTE: Activates in production mode only because it's
	# not necessary for development and needs a mod_rewrite
	# rule for Apache anyway:

stephanschubert / deferred_google_analytics.html

Created April 9, 2010 10:57

jQuery version of deferred Google Analytics. See http://neil.fraser.name/news/2010/04/07/ for more details.

	<script type="text/javascript">
	(function($) {
	$("body").load(function() {
	setTimeout(function() {
	var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
	ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
	var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
	}, 1);
	});
	})(jQuery);

stephanschubert / faster-float2int.js

Created March 19, 2010 10:22

	function t(f) { var x = (new Date()).getTime(); f.call(); return (new Date()).getTime() - x; }

	t(function() { for(i = 0; i < 1000000; ++i) { Math.ceil(i); } });
	// 1081

	t(function() { for(i = 0; i < 1000000; ++i) { ~~i; } });
	// 772

stephanschubert / euler25.rb

Created February 24, 2010 10:54

Solution for Euler #25 in Ruby w/ memoization

	# http://projecteuler.net/index.php?section=problems&id=25

	# There are memoization libs, but i had it at my
	# fingertips anyway ..
	def memoize(name)
	cache = {}
	(class << self; self; end).send(:define_method, name) do \|*args\|
	cache[args] = super(*args) unless cache.has_key?(args)
	cache[args]
	end

stephanschubert / gist:296073

Created February 5, 2010 18:39

Recursive fibonacci with memoization

	def memoize(name)
	cache = {}
	(class << self; self; end).send(:define_method, name) do \|*args\|
	cache[args] = super(*args) unless cache.has_key?(args)
	cache[args]
	end
	end

	def fib(n)
	return n if n < 2

stephanschubert / apache_asset_config

Created December 2, 2009 18:16

Apply a cachebuster to your static assets before using this Apache configuration

	<FilesMatch "\.(pdf\|flv\|jpg\|jpeg\|png\|gif\|js\|css\|swf)$">
	Header set Cache-Control "public"
	ExpiresActive On
	ExpiresDefault "access plus 10 years"
	FileETag None
	Header unset Last-Modified
	Header unset ETag
	</FilesMatch>

stephanschubert / authenticity_token.rb

Created December 1, 2009 11:58

Ruby module for convenient authenticity token generation and usage for any class

	module AuthenticityToken

	def authenticity_token(&block)
	class_inheritable_accessor :authenticity_token_generator
	self.authenticity_token_generator = block
	include InstanceMethods
	end

	module InstanceMethods

stephanschubert / google_analytics_real_bounce_rate_fix.rb

Created November 21, 2009 12:05

Track your real bounce rate by triggering a custom no-bounce event with Google Analytics after a given timeout.

	def google_analytics_real_bounce_rate_fix(timeout = 10)
	name = "NoBounce"
	msg = "Over #{timeout} seconds"
	ms = timeout * 1000

	<<-JS
	function disqualifyAsBounce() {
	pageTracker._trackEvent('#{name}', '#{name}', '#{msg}');
	}
	setTimeout("disqualifyAsBounce()", #{ms});

stephanschubert / current_method_name.rb

Created November 18, 2009 12:11

Ruby module providing convenient access to the currently called method's name

stephanschubert / current_controller.rb

Created November 6, 2009 11:34

A small Ruby module which provides access to the current controller everywhere you could need it. Works in multithreaded environments.

	module CurrentController
	def self.included(base)
	base.before_filter :set_current_controller
	end

	def set_current_controller
	Thread.current[:current_controller] = self
	end
	end

Stephan Schubert stephanschubert