Paco Guzmán pacoguzman

HTML5 and friends.

A bigass bulleted list of features.

I commonly need to get a big list of all the stuff people think of when they think new and shiny these days. This list is for that.

I take a very inclusionist approach to it. 1

javascript APIs

Web Storage (localStorage, sessionStorage)
Web SQL Database

Instrument Anything in Rails 3

With Rails 3.0 released a few weeks ago I've migrated a few apps and I'm constantly finding useful new improvements. One such improvement is the ability to log anything in the same way that Rails internally logs ActiveRecord and ActionView. By default Rails 3 logs look slightly spiffier than those produced by Rails 2.3: (notice the second line has been cleaned up)

Started GET "/" for 127.0.0.1 at Mon Sep 06 01:07:11 -0400 2010
  Processing by HomeController#index as HTML
  User Load (0.2ms)  SELECT `users`.* FROM `users` WHERE (`users`.`id` = 3) LIMIT 1
  CACHE (0.0ms)  SELECT `users`.* FROM `users` WHERE (`users`.`id` = 3) LIMIT 1

Rendered layouts/_nav.html.erb (363.4ms)

	# adapted from rspec-rails http://github.com/rspec/rspec-rails/blob/master/spec/rspec/rails/mocks/mock_model_spec.rb

	shared_examples_for "ActiveModel" do
	require 'test/unit/assertions'
	require 'active_model/lint'
	include Test::Unit::Assertions
	include ActiveModel::Lint::Tests

	# to_s is to support ruby-1.9
	ActiveModel::Lint::Tests.public_instance_methods.map{\|m\| m.to_s}.grep(/^test/).each do \|m\|

	# Rails developers have long had bad experiences with fixtures for
	# several reasons, including misuse.
	#
	# Misuse of fixtures is characterized by having a huge number of them,
	# requiring the developer to maintain a lot of data and creating dependencies
	# between tests. In my experience working (and rescuing) many applications, 80%
	# of fixtures are only used by 20% of tests.
	#
	# An example of such tests is one assuring that a given SQL query with
	# GROUP BY and ORDER BY conditions returns the correct result set. As expected,

	// desire: localStorage and sessionStorage should accept objects
	// in fact they do according to spec.
	// http://code.google.com/p/chromium/issues/detail?id=43666

	// but so far that part isnt implemented anywhere.

	// so we duckpunch set/getItem() to stringify/parse on the way in/out
	// this seems to work in chrome
	// but fails in FF (cant redefine setItem as a function, it just tostring's it)

	// 1: how could you rewrite the following to make it shorter?
	if (foo) {
	bar.doSomething(el);
	} else {
	bar.doSomethingElse(el);
	}

	# needs the "hashie" gem in Gemfile
	require 'erb'

	module Movies
	class Application < Rails::Application

	# read from "settings.yml" and optional "settings.local.yml"
	settings = ERB.new(IO.read(File.expand_path('../settings.yml', __FILE__))).result
	mash = Hashie::Mash.new(YAML::load(settings)[Rails.env.to_s])

	<!DOCTYPE html>

	<!-- Helpful things to keep in your <head/>
	// Brian Blakely, 360i
	// http://twitter.com/brianblakely/
	-->
	<head>

	<!-- According to Heather Champ, former community manager at flickr,
	you should not allow search engines to index your "Contact Us"

	# In your test_helper.rb
	class ActiveRecord::Base
	mattr_accessor :shared_connection
	@@shared_connection = nil

	def self.connection
	@@shared_connection \|\| retrieve_connection
	end
	end

	# Copy this to features/support/ssl_fix.rb to make Capybara work with sites that switch between HTTP and HTTPS

	module Capybara::Driver::RackTest::SslFix

	[:get, :post, :put, :delete].each do \|method\|
	define_method method do \|*args\|
	args[0] = path_to_ssl_aware_url(args[0])
	super(*args)
	end
	end